├── demo
├── .gitignore
├── src
│ └── main
│ │ ├── res
│ │ ├── mipmap-hdpi
│ │ │ └── ic_launcher.png
│ │ ├── mipmap-mdpi
│ │ │ └── ic_launcher.png
│ │ ├── mipmap-xhdpi
│ │ │ └── ic_launcher.png
│ │ ├── mipmap-xxhdpi
│ │ │ └── ic_launcher.png
│ │ ├── mipmap-xxxhdpi
│ │ │ └── ic_launcher.png
│ │ ├── values-w820dp
│ │ │ └── dimens.xml
│ │ ├── values
│ │ │ ├── dimens.xml
│ │ │ ├── colors.xml
│ │ │ ├── styles.xml
│ │ │ └── strings.xml
│ │ ├── drawable
│ │ │ ├── ic_flash_on.xml
│ │ │ ├── ic_flash_off.xml
│ │ │ ├── ic_aspect_ratio.xml
│ │ │ ├── ic_flash_auto.xml
│ │ │ ├── ic_switch_camera.xml
│ │ │ └── ic_camera.xml
│ │ ├── layout
│ │ │ ├── dialog_picture.xml
│ │ │ └── activity_main.xml
│ │ ├── menu
│ │ │ └── main.xml
│ │ └── layout-land
│ │ │ └── activity_main.xml
│ │ ├── java
│ │ └── com
│ │ │ └── google
│ │ │ └── android
│ │ │ └── cameraview
│ │ │ └── demo
│ │ │ ├── MainApplication.java
│ │ │ ├── PictureDialogFragment.java
│ │ │ ├── ConfirmationDialogFragment.java
│ │ │ ├── AspectRatioFragment.java
│ │ │ └── MainActivity.java
│ │ └── AndroidManifest.xml
└── build.gradle
├── library
├── .gitignore
├── src
│ ├── main
│ │ ├── res
│ │ │ ├── drawable
│ │ │ │ ├── focus_marker_fill.xml
│ │ │ │ └── focus_marker_outline.xml
│ │ │ ├── layout-v14
│ │ │ │ ├── layout_focus_marker.xml
│ │ │ │ └── texture_view.xml
│ │ │ ├── values
│ │ │ │ ├── public.xml
│ │ │ │ ├── styles.xml
│ │ │ │ └── attrs.xml
│ │ │ └── layout
│ │ │ │ └── surface_view.xml
│ │ ├── AndroidManifest.xml
│ │ ├── base
│ │ │ └── com
│ │ │ │ └── google
│ │ │ │ └── android
│ │ │ │ └── cameraview
│ │ │ │ ├── Constants.java
│ │ │ │ ├── CameraHelper.java
│ │ │ │ ├── PreviewImpl.java
│ │ │ │ ├── Size.java
│ │ │ │ ├── CameraViewImpl.java
│ │ │ │ ├── SizeMap.java
│ │ │ │ ├── FocusMarkerView.java
│ │ │ │ ├── DisplayOrientationDetector.java
│ │ │ │ ├── CameraLogDefaultLoggingDelegate.java
│ │ │ │ ├── AspectRatio.java
│ │ │ │ ├── LoggingDelegate.java
│ │ │ │ └── CameraLog.java
│ │ ├── api23
│ │ │ └── com
│ │ │ │ └── google
│ │ │ │ └── android
│ │ │ │ └── cameraview
│ │ │ │ └── Camera2Api23.java
│ │ ├── api9
│ │ │ └── com
│ │ │ │ └── google
│ │ │ │ └── android
│ │ │ │ └── cameraview
│ │ │ │ └── SurfaceViewPreview.java
│ │ └── api14
│ │ │ └── com
│ │ │ └── google
│ │ │ └── android
│ │ │ └── cameraview
│ │ │ └── TextureViewPreview.java
│ ├── androidTest
│ │ ├── AndroidManifest.xml
│ │ ├── res
│ │ │ └── layout
│ │ │ │ └── activity_camera_view.xml
│ │ └── java
│ │ │ └── com
│ │ │ └── google
│ │ │ └── android
│ │ │ └── cameraview
│ │ │ ├── CameraViewActivity.java
│ │ │ ├── CameraViewMatchers.java
│ │ │ ├── CameraViewActions.java
│ │ │ ├── AspectRatioIsCloseTo.java
│ │ │ ├── AspectRatioInstrumentationTest.java
│ │ │ └── CameraViewTest.java
│ └── test
│ │ └── java
│ │ └── com
│ │ └── google
│ │ └── android
│ │ └── cameraview
│ │ ├── SizeMapTest.java
│ │ ├── SizeTest.java
│ │ └── AspectRatioTest.java
└── build.gradle
├── cameraview_screenshot.png
├── gradle
└── wrapper
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
├── .idea
├── copyright
│ ├── profiles_settings.xml
│ └── Apache_License_2_0.xml
└── codeStyleSettings.xml
├── .gitignore
├── settings.gradle
├── gradle.properties
├── CONTRIBUTING.md
├── README.md
├── gradlew.bat
├── gradlew
└── LICENSE
/demo/.gitignore:
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1 | *.iml
2 | .gradle
3 | /local.properties
4 | .DS_Store
5 | /build
6 | /captures
7 |
8 | .idea/
9 | !.idea/copyright/*.xml
10 | !.idea/codeStyleSettings.xml
11 |
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1 | #Tue Sep 06 09:02:59 JST 2016
2 | distributionBase=GRADLE_USER_HOME
3 | distributionPath=wrapper/dists
4 | zipStoreBase=GRADLE_USER_HOME
5 | zipStorePath=wrapper/dists
6 | distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
7 |
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1 | // Copyright (C) 2016 The Android Open Source Project
2 | //
3 | // Licensed under the Apache License, Version 2.0 (the "License");
4 | // you may not use this file except in compliance with the License.
5 | // You may obtain a copy of the License at
6 | //
7 | // http://www.apache.org/licenses/LICENSE-2.0
8 | //
9 | // Unless required by applicable law or agreed to in writing, software
10 | // distributed under the License is distributed on an "AS IS" BASIS,
11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 | // See the License for the specific language governing permissions and
13 | // limitations under the License.
14 |
15 | include ':demo', ':library'
16 |
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15 | 64dp
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/gradle.properties:
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1 | # Project-wide Gradle settings.
2 |
3 | # IDE (e.g. Android Studio) users:
4 | # Gradle settings configured through the IDE *will override*
5 | # any settings specified in this file.
6 |
7 | # For more details on how to configure your build environment visit
8 | # http://www.gradle.org/docs/current/userguide/build_environment.html
9 |
10 | # Specifies the JVM arguments used for the daemon process.
11 | # The setting is particularly useful for tweaking memory settings.
12 | # Default value: -Xmx10248m -XX:MaxPermSize=256m
13 | # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8
14 |
15 | # When configured, Gradle will run in incubating parallel mode.
16 | # This option should only be used with decoupled projects. More details, visit
17 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
18 | # org.gradle.parallel=true
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15 | #3F51B5
16 | #303F9F
17 | #4CAF50
18 | #212121
19 | #727272
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/demo/src/main/java/com/google/android/cameraview/demo/MainApplication.java:
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1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview.demo;
18 |
19 | import android.app.Application;
20 |
21 | import com.facebook.drawee.backends.pipeline.Fresco;
22 |
23 | /**
24 | *
25 | * Created by javayhu on 9/8/17.
26 | */
27 | public class MainApplication extends Application {
28 |
29 | @Override
30 | public void onCreate() {
31 | super.onCreate();
32 |
33 | Fresco.initialize(this);
34 | }
35 | }
36 |
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/library/src/main/base/com/google/android/cameraview/Constants.java:
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1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 |
20 | interface Constants {
21 |
22 | AspectRatio DEFAULT_ASPECT_RATIO = AspectRatio.of(16, 9);//如果是16:9的话显示图片的时候可以填充整个屏幕
23 | AspectRatio SECOND_ASPECT_RATIO = AspectRatio.of(4, 3);//如果是4:3的话显示图片的时候会上下留黑很多空间
24 |
25 | int FACING_BACK = 0;
26 | int FACING_FRONT = 1;
27 |
28 | int FLASH_OFF = 0;
29 | int FLASH_ON = 1;
30 | int FLASH_TORCH = 2;
31 | int FLASH_AUTO = 3;
32 | int FLASH_RED_EYE = 4;
33 |
34 | int LANDSCAPE_90 = 90;
35 | int LANDSCAPE_270 = 270;
36 | }
37 |
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/demo/src/main/res/values/strings.xml:
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1 |
2 |
14 |
15 | CameraView Demo
16 | This app demonstrates the usage of CameraView. In order to do that, it needs permission to access camera.
17 | Camera app cannot do anything without camera permission.
18 | Picture taken
19 | Aspect ratio
20 | Switch flash
21 | Switch camera
22 | Flash auto
23 | Flash off
24 | Flash on
25 |
26 |
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/library/src/androidTest/java/com/google/android/cameraview/CameraViewActivity.java:
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1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.app.Activity;
20 | import android.os.Bundle;
21 |
22 | import com.google.android.cameraview.test.R;
23 |
24 | public class CameraViewActivity extends Activity {
25 |
26 | private CameraView mCameraView;
27 |
28 | @Override
29 | protected void onCreate(Bundle savedInstanceState) {
30 | super.onCreate(savedInstanceState);
31 | setContentView(R.layout.activity_camera_view);
32 | mCameraView = (CameraView) findViewById(R.id.camera);
33 | }
34 |
35 | @Override
36 | protected void onResume() {
37 | super.onResume();
38 | mCameraView.start();
39 | }
40 |
41 | @Override
42 | protected void onPause() {
43 | mCameraView.stop();
44 | super.onPause();
45 | }
46 |
47 | }
48 |
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/library/src/androidTest/java/com/google/android/cameraview/CameraViewMatchers.java:
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1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.support.annotation.NonNull;
20 | import android.view.View;
21 |
22 | import org.hamcrest.Description;
23 | import org.hamcrest.Matcher;
24 | import org.hamcrest.TypeSafeMatcher;
25 |
26 | class CameraViewMatchers {
27 |
28 | static Matcher hasAspectRatio(@NonNull final AspectRatio ratio) {
29 | return new TypeSafeMatcher() {
30 | @Override
31 | public void describeTo(Description description) {
32 | description.appendText("has aspect ratio of " + ratio);
33 | }
34 |
35 | @Override
36 | protected boolean matchesSafely(View view) {
37 | return ratio.equals(((CameraView) view).getAspectRatio());
38 | }
39 | };
40 | }
41 |
42 | }
43 |
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1 |
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40 |
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/CONTRIBUTING.md:
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1 | # How to become a contributor and submit your own code
2 |
3 | ## Contributor License Agreements
4 |
5 | We'd love to accept your sample apps and patches! Before we can take them, we
6 | have to jump a couple of legal hurdles.
7 |
8 | Please fill out either the individual or corporate Contributor License Agreement (CLA).
9 |
10 | * If you are an individual writing original source code and you're sure you
11 | own the intellectual property, then you'll need to sign an [individual CLA]
12 | (https://cla.developers.google.com).
13 | * If you work for a company that wants to allow you to contribute your work,
14 | then you'll need to sign a [corporate CLA]
15 | (https://cla.developers.google.com).
16 |
17 | Follow either of the two links above to access the appropriate CLA and
18 | instructions for how to sign and return it. Once we receive it, we'll be able to
19 | accept your pull requests.
20 |
21 | ## Contributing A Patch
22 |
23 | 1. Submit an issue describing your proposed change to the repo in question.
24 | 1. The repo owner will respond to your issue promptly.
25 | 1. If your proposed change is accepted, and you haven't already done so, sign a
26 | Contributor License Agreement (see details above).
27 | 1. Fork the desired repo, develop and test your code changes.
28 | 1. Ensure that your code adheres to the existing style in the sample to which
29 | you are contributing. Refer to the
30 | [Android Code Style Guide]
31 | (https://source.android.com/source/code-style.html) for the
32 | recommended coding standards for this organization.
33 | 1. Ensure that your code has an appropriate set of unit tests which all pass.
34 | 1. Submit a pull request.
35 |
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/library/src/androidTest/java/com/google/android/cameraview/CameraViewActions.java:
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1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import static android.support.test.espresso.matcher.ViewMatchers.isAssignableFrom;
20 |
21 | import android.support.annotation.NonNull;
22 | import android.support.test.espresso.UiController;
23 | import android.support.test.espresso.ViewAction;
24 | import android.view.View;
25 |
26 | import org.hamcrest.Matcher;
27 |
28 | class CameraViewActions {
29 |
30 | static ViewAction setAspectRatio(@NonNull final AspectRatio ratio) {
31 | return new ViewAction() {
32 |
33 | @Override
34 | public Matcher getConstraints() {
35 | return isAssignableFrom(CameraView.class);
36 | }
37 |
38 | @Override
39 | public String getDescription() {
40 | return "Set aspect ratio to " + ratio;
41 | }
42 |
43 | @Override
44 | public void perform(UiController controller, View view) {
45 | ((CameraView) view).setAspectRatio(ratio);
46 | }
47 | };
48 | }
49 |
50 | }
51 |
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/library/src/main/api23/com/google/android/cameraview/Camera2Api23.java:
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1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.annotation.TargetApi;
20 | import android.content.Context;
21 | import android.graphics.ImageFormat;
22 | import android.hardware.camera2.params.StreamConfigurationMap;
23 |
24 | /**
25 | * 在Android 6.0系统以上使用Camera2Api23作为CameraView的实现,它与Camera2的区别在于获取输出图片大小的方式略有不同
26 | */
27 | @TargetApi(23)
28 | class Camera2Api23 extends Camera2 {
29 |
30 | Camera2Api23(Callback callback, PreviewImpl preview, Context context) {
31 | super(callback, preview, context);
32 | }
33 |
34 | @Override
35 | protected void collectPictureSizes(SizeMap sizes, StreamConfigurationMap map) {
36 | // Try to get hi-res output sizes
37 | android.util.Size[] outputSizes = map.getHighResolutionOutputSizes(ImageFormat.JPEG);
38 | if (outputSizes != null) {
39 | for (android.util.Size size : map.getHighResolutionOutputSizes(ImageFormat.JPEG)) {
40 | sizes.add(new Size(size.getWidth(), size.getHeight()));
41 | }
42 | }
43 | if (sizes.isEmpty()) {
44 | super.collectPictureSizes(sizes, map);
45 | }
46 | }
47 |
48 | }
49 |
--------------------------------------------------------------------------------
/library/src/test/java/com/google/android/cameraview/SizeMapTest.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import static org.hamcrest.CoreMatchers.is;
20 | import static org.junit.Assert.assertThat;
21 |
22 | import org.junit.Test;
23 |
24 | public class SizeMapTest {
25 |
26 | @Test
27 | public void testAdd_simple() {
28 | SizeMap map = new SizeMap();
29 | map.add(new Size(3, 4));
30 | map.add(new Size(9, 16));
31 | assertThat(map.ratios().size(), is(2));
32 | }
33 |
34 | @Test
35 | public void testAdd_duplicate() {
36 | SizeMap map = new SizeMap();
37 | map.add(new Size(3, 4));
38 | map.add(new Size(6, 8));
39 | map.add(new Size(9, 12));
40 | assertThat(map.ratios().size(), is(1));
41 | AspectRatio ratio = (AspectRatio) map.ratios().toArray()[0];
42 | assertThat(ratio.toString(), is("3:4"));
43 | assertThat(map.sizes(ratio).size(), is(3));
44 | }
45 |
46 | @Test
47 | public void testClear() {
48 | SizeMap map = new SizeMap();
49 | map.add(new Size(12, 34));
50 | assertThat(map.ratios().size(), is(1));
51 | map.clear();
52 | assertThat(map.ratios().size(), is(0));
53 | }
54 |
55 | }
56 |
--------------------------------------------------------------------------------
/library/src/test/java/com/google/android/cameraview/SizeTest.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import static org.hamcrest.CoreMatchers.is;
20 | import static org.junit.Assert.assertThat;
21 |
22 | import org.junit.Test;
23 |
24 | import java.util.HashSet;
25 |
26 | public class SizeTest {
27 |
28 | @Test
29 | public void testGetters() {
30 | Size size = new Size(1, 2);
31 | assertThat(size.getWidth(), is(1));
32 | assertThat(size.getHeight(), is(2));
33 | }
34 |
35 | @Test
36 | public void testToString() {
37 | Size size = new Size(1, 2);
38 | assertThat(size.toString(), is("1x2"));
39 | }
40 |
41 | @Test
42 | public void testEquals() {
43 | Size a = new Size(1, 2);
44 | Size b = new Size(1, 2);
45 | Size c = new Size(3, 4);
46 | assertThat(a.equals(b), is(true));
47 | assertThat(a.equals(c), is(false));
48 | }
49 |
50 | @Test
51 | public void testHashCode() {
52 | int max = 100;
53 | HashSet codes = new HashSet<>();
54 | for (int x = 1; x <= max; x++) {
55 | for (int y = 1; y <= max; y++) {
56 | codes.add(new Size(x, y).hashCode());
57 | }
58 | }
59 | assertThat(codes.size(), is(max * max));
60 | }
61 |
62 | }
63 |
--------------------------------------------------------------------------------
/library/src/androidTest/java/com/google/android/cameraview/AspectRatioIsCloseTo.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import static org.hamcrest.CoreMatchers.either;
20 |
21 | import org.hamcrest.Description;
22 | import org.hamcrest.Factory;
23 | import org.hamcrest.Matcher;
24 | import org.hamcrest.TypeSafeMatcher;
25 |
26 | public class AspectRatioIsCloseTo extends TypeSafeMatcher {
27 |
28 | private final AspectRatio mRatio;
29 | private final static float ERROR = 0.01f;
30 |
31 | public AspectRatioIsCloseTo(AspectRatio ratio) {
32 | mRatio = ratio;
33 | }
34 |
35 | @Override
36 | protected boolean matchesSafely(AspectRatio item) {
37 | float other = item.toFloat();
38 | float self = mRatio.toFloat();
39 | return self - ERROR < other && other < self + ERROR;
40 | }
41 |
42 | @Override
43 | public void describeTo(Description description) {
44 | description.appendText("an aspect ratio of ").appendValue(mRatio.toString());
45 | }
46 |
47 | @Factory
48 | public static Matcher closeTo(AspectRatio ratio) {
49 | return new AspectRatioIsCloseTo(ratio);
50 | }
51 |
52 | @Factory
53 | public static Matcher closeToOrInverse(AspectRatio ratio) {
54 | return either(closeTo(ratio)).or(closeTo(ratio.inverse()));
55 | }
56 |
57 | }
58 |
--------------------------------------------------------------------------------
/demo/build.gradle:
--------------------------------------------------------------------------------
1 | // Copyright (C) 2016 The Android Open Source Project
2 | //
3 | // Licensed under the Apache License, Version 2.0 (the "License");
4 | // you may not use this file except in compliance with the License.
5 | // You may obtain a copy of the License at
6 | //
7 | // http://www.apache.org/licenses/LICENSE-2.0
8 | //
9 | // Unless required by applicable law or agreed to in writing, software
10 | // distributed under the License is distributed on an "AS IS" BASIS,
11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 | // See the License for the specific language governing permissions and
13 | // limitations under the License.
14 |
15 | apply plugin: 'com.android.application'
16 |
17 | android {
18 | compileSdkVersion rootProject.ext.compileSdkVersion
19 |
20 | buildToolsVersion rootProject.ext.buildToolsVersion
21 |
22 | defaultConfig {
23 | applicationId 'com.google.android.cameraview.demo'
24 | minSdkVersion rootProject.ext.minSdkVersion
25 | targetSdkVersion rootProject.ext.targetSdkVersion
26 | versionCode 1
27 | versionName '1.0'
28 | testInstrumentationRunner 'android.support.test.runner.AndroidJUnitRunner'
29 | vectorDrawables.useSupportLibrary = true
30 | }
31 | buildTypes {
32 | release {
33 | minifyEnabled false
34 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
35 | }
36 | }
37 | }
38 |
39 | dependencies {
40 | compile fileTree(dir: 'libs', include: ['*.jar'])
41 | compile "com.android.support:design:$supportLibraryVersion"
42 | compile project(':library')
43 |
44 | compile 'com.facebook.fresco:fresco:1.5.0'
45 |
46 | // Tests
47 | testCompile 'junit:junit:4.12'
48 | androidTestCompile('com.android.support.test:runner:0.5') {
49 | exclude module: 'support-annotations'
50 | }
51 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2') {
52 | exclude module: 'support-annotations'
53 | }
54 | }
55 |
--------------------------------------------------------------------------------
/library/src/androidTest/java/com/google/android/cameraview/AspectRatioInstrumentationTest.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import static junit.framework.Assert.assertNotNull;
20 |
21 | import static org.hamcrest.MatcherAssert.assertThat;
22 | import static org.hamcrest.Matchers.sameInstance;
23 | import static org.hamcrest.core.Is.is;
24 |
25 | import android.os.Parcel;
26 | import android.support.test.runner.AndroidJUnit4;
27 |
28 | import org.junit.Test;
29 | import org.junit.runner.RunWith;
30 |
31 |
32 | @RunWith(AndroidJUnit4.class)
33 | public class AspectRatioInstrumentationTest {
34 |
35 | @Test
36 | public void testParcel() {
37 | final AspectRatio original = AspectRatio.of(4, 3);
38 | final Parcel parcel = Parcel.obtain();
39 | try {
40 | parcel.writeParcelable(original, 0);
41 | parcel.setDataPosition(0);
42 | final AspectRatio restored = parcel.readParcelable(getClass().getClassLoader());
43 | assertNotNull(restored);
44 | assertThat(restored.getX(), is(4));
45 | assertThat(restored.getY(), is(3));
46 | // As the first instance is alive, the parceled result should still be the same instance
47 | assertThat(restored, is(sameInstance(original)));
48 | } finally {
49 | parcel.recycle();
50 | }
51 | }
52 |
53 | }
54 |
--------------------------------------------------------------------------------
/library/src/main/base/com/google/android/cameraview/CameraHelper.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.content.Context;
20 | import android.content.SharedPreferences;
21 |
22 | /**
23 | * 相机辅助类
24 | *
25 | * Created by javayhu on 9/8/17.
26 | */
27 | public class CameraHelper {
28 |
29 | private static CameraHelper sInstance;
30 | private static final String SP_NAME = "camera";
31 | private static final String KEY_USE_CAMERA1 = "key_use_camera1";
32 |
33 | private SharedPreferences mSharedPreferences;
34 |
35 | private CameraHelper(Context context) {
36 | mSharedPreferences = context.getSharedPreferences(SP_NAME, Context.MODE_PRIVATE);
37 | }
38 |
39 | public static CameraHelper getInstance(Context context) {
40 | if (sInstance == null) {
41 | sInstance = new CameraHelper(context);
42 | }
43 | return sInstance;
44 | }
45 |
46 | public void setUseCamera1InFuture() {
47 | if (mSharedPreferences != null) {
48 | mSharedPreferences.edit().putBoolean(KEY_USE_CAMERA1, true).apply();
49 | }
50 | }
51 |
52 | //是否应该使用Camera1 API
53 | public boolean shouldUseCamera1() {
54 | if (mSharedPreferences != null) {
55 | return mSharedPreferences.getBoolean(KEY_USE_CAMERA1, false);
56 | }
57 | return false;
58 | }
59 |
60 | }
61 |
--------------------------------------------------------------------------------
/library/build.gradle:
--------------------------------------------------------------------------------
1 | // Copyright (C) 2016 The Android Open Source Project
2 | //
3 | // Licensed under the Apache License, Version 2.0 (the "License");
4 | // you may not use this file except in compliance with the License.
5 | // You may obtain a copy of the License at
6 | //
7 | // http://www.apache.org/licenses/LICENSE-2.0
8 | //
9 | // Unless required by applicable law or agreed to in writing, software
10 | // distributed under the License is distributed on an "AS IS" BASIS,
11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 | // See the License for the specific language governing permissions and
13 | // limitations under the License.
14 |
15 | apply plugin: 'com.android.library'
16 |
17 | android {
18 | compileSdkVersion rootProject.ext.compileSdkVersion
19 | buildToolsVersion rootProject.ext.buildToolsVersion
20 |
21 | defaultConfig {
22 | minSdkVersion rootProject.ext.minSdkVersion
23 | targetSdkVersion rootProject.ext.targetSdkVersion
24 | testInstrumentationRunner 'android.support.test.runner.AndroidJUnitRunner'
25 | }
26 | buildTypes {
27 | release {
28 | minifyEnabled false
29 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
30 | }
31 | }
32 | sourceSets {
33 | main.java.srcDirs += 'src/main/base'
34 | main.java.srcDirs += 'src/main/api9'
35 | main.java.srcDirs += 'src/main/api14'
36 | main.java.srcDirs += 'src/main/api21'
37 | main.java.srcDirs += 'src/main/api23'
38 | }
39 | }
40 |
41 | dependencies {
42 | compile "com.android.support:support-annotations:$supportLibraryVersion"
43 | compile "com.android.support:support-v4:$supportLibraryVersion"
44 |
45 | // Tests
46 | testCompile 'junit:junit:4.12'
47 | androidTestCompile('com.android.support.test:runner:0.5') {
48 | exclude module: 'support-annotations'
49 | }
50 | androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2') {
51 | exclude module: 'support-annotations'
52 | }
53 | }
54 |
--------------------------------------------------------------------------------
/library/src/main/base/com/google/android/cameraview/PreviewImpl.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.view.Surface;
20 | import android.view.SurfaceHolder;
21 | import android.view.View;
22 |
23 |
24 | /**
25 | * 不同方式实现Preview的抽象基类
26 | *
27 | * Encapsulates all the operations related to camera preview in a backward-compatible manner.
28 | */
29 | abstract class PreviewImpl {
30 |
31 | private int mWidth;
32 | private int mHeight;
33 | private Callback mCallback;
34 |
35 |
36 | SurfaceHolder getSurfaceHolder() {
37 | return null;
38 | }
39 |
40 | Object getSurfaceTexture() {
41 | return null;
42 | }
43 |
44 | void setBufferSize(int width, int height) {
45 | }
46 |
47 | void setSize(int width, int height) {
48 | mWidth = width;
49 | mHeight = height;
50 | }
51 |
52 | int getWidth() {
53 | return mWidth;
54 | }
55 |
56 | int getHeight() {
57 | return mHeight;
58 | }
59 |
60 | void setCallback(Callback callback) {
61 | mCallback = callback;
62 | }
63 |
64 | void dispatchSurfaceChanged() {
65 | mCallback.onSurfaceChanged();
66 | }
67 |
68 |
69 | /**
70 | * 抽象方法
71 | */
72 | abstract Surface getSurface();
73 |
74 | abstract View getView();
75 |
76 | abstract Class getOutputClass();
77 |
78 | abstract void setDisplayOrientation(int displayOrientation);
79 |
80 | abstract boolean isReady();
81 |
82 |
83 | /**
84 | * surface变化时的回调
85 | */
86 | interface Callback {
87 | void onSurfaceChanged();
88 | }
89 |
90 | }
91 |
92 |
--------------------------------------------------------------------------------
/demo/src/main/res/layout/activity_main.xml:
--------------------------------------------------------------------------------
1 |
2 |
14 |
23 |
24 |
33 |
34 |
41 |
42 |
50 |
51 |
52 |
--------------------------------------------------------------------------------
/demo/src/main/res/layout-land/activity_main.xml:
--------------------------------------------------------------------------------
1 |
2 |
14 |
23 |
24 |
33 |
34 |
41 |
42 |
52 |
53 |
54 |
--------------------------------------------------------------------------------
/library/src/main/base/com/google/android/cameraview/Size.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.support.annotation.NonNull;
20 |
21 | /**
22 | * 图像的宽和高
23 | *
24 | * Immutable class for describing width and height dimensions in pixels.
25 | */
26 | public class Size implements Comparable {
27 |
28 | private final int mWidth;
29 | private final int mHeight;
30 |
31 | /**
32 | * Create a new immutable Size instance.
33 | *
34 | * @param width The width of the size, in pixels
35 | * @param height The height of the size, in pixels
36 | */
37 | public Size(int width, int height) {
38 | mWidth = width;
39 | mHeight = height;
40 | }
41 |
42 | public int getWidth() {
43 | return mWidth;
44 | }
45 |
46 | public int getHeight() {
47 | return mHeight;
48 | }
49 |
50 | @Override
51 | public boolean equals(Object o) {
52 | if (o == null) {
53 | return false;
54 | }
55 | if (this == o) {
56 | return true;
57 | }
58 | if (o instanceof Size) {
59 | Size size = (Size) o;
60 | return mWidth == size.mWidth && mHeight == size.mHeight;
61 | }
62 | return false;
63 | }
64 |
65 | @Override
66 | public String toString() {
67 | return mWidth + " x " + mHeight;
68 | }
69 |
70 | @Override
71 | public int hashCode() {
72 | // assuming most sizes are <2^16, doing a rotate will give us perfect hashing
73 | return mHeight ^ ((mWidth << (Integer.SIZE / 2)) | (mWidth >>> (Integer.SIZE / 2)));
74 | }
75 |
76 | @Override
77 | public int compareTo(@NonNull Size another) {
78 | return mWidth * mHeight - another.mWidth * another.mHeight;
79 | }
80 |
81 | }
82 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # CameraView
2 |
3 | ### 项目说明
4 |
5 | 这个项目基于Google的非正式开源的[CameraView](https://github.com/google/cameraview)组件,兼容Camera 1 API和Camera 2 API,提供了相机预览、切换前后摄像头、切换闪光灯、切换预览图片的比例以及拍照等功能。
6 | CameraView这个项目可以帮助Android开发者快速创建一个可以适配不同Android系统和不同Android设备,并且包含各种基本功能的相机界面,但是它是非正式的,所以仍然存在一些兼容性问题和bug,而且原开发者并没有试图再去修复了,这正创建是自己的CameraView项目的原因。
7 |
8 | 除上述CameraView原有项目自带的几个特性之外,这个项目主要做了以下几点改进:
9 |
10 | 1.参照[lin18/cameraview](https://github.com/lin18/cameraview)的源码加入了手动对焦功能,对焦的界面显示效果也比较容易修改和定制
11 |
12 | 2.修复原始的[CameraView](https://github.com/google/cameraview)组件中的几个bug,并提升了相机启动速度和拍照时的体验等问题
13 |
14 | 3.在相机模块的使用过程中提供了完整的日志输出,并且提供了便利的`LoggingDelegate`以便在release和debug模式之间轻松控制日志输出级别
15 |
16 | 详细的介绍以及Android端相机相关开发的经验请看[这篇文章](http://javayhu.me/blog/2017/09/25/camera-development-experience-on-android/)
17 |
18 | ### 应用界面
19 |
20 | 
21 |
22 | ### 原始项目介绍
23 |
24 | 下面是[CameraView](https://github.com/google/cameraview)组件的原始说明文档,我觉得其中有个小错误,API Level为24的时候的`Preview View`是`TextureView`,原始文档写的是`SurfaceView`
25 |
26 | *This is a preview release. The API is subject to change.*
27 |
28 | This is not an official Google product.
29 |
30 | CameraView aims to help Android developers easily integrate Camera features.
31 |
32 | Requires API Level 9. The library uses Camera 1 API on API Level 9-20 and Camera2 on 21 and above.
33 |
34 | | API Level | Camera API | Preview View |
35 | |:---------:|------------|--------------|
36 | | 9-13 | Camera1 | SurfaceView |
37 | | 14-20 | Camera1 | TextureView |
38 | | 21-23 | Camera2 | TextureView |
39 | | 24 | Camera2 | TextureView |
40 |
41 | ## Features
42 |
43 | - Camera preview by placing it in a layout XML (and calling the start method)
44 | - Configuration by attributes
45 | - Aspect ratio (app:aspectRatio)
46 | - Auto-focus (app:autoFocus)
47 | - Flash (app:flash)
48 |
49 | ## Usage
50 |
51 | ```xml
52 |
62 | ```
63 |
64 | ```java
65 | @Override
66 | protected void onResume() {
67 | super.onResume();
68 | mCameraView.start();
69 | }
70 |
71 | @Override
72 | protected void onPause() {
73 | mCameraView.stop();
74 | super.onPause();
75 | }
76 | ```
77 |
78 | You can see a complete usage in the demo app.
79 |
80 | ## Contribution
81 |
82 | See [CONTRIBUTING.md](/CONTRIBUTING.md).
83 |
--------------------------------------------------------------------------------
/gradlew.bat:
--------------------------------------------------------------------------------
1 | @if "%DEBUG%" == "" @echo off
2 | @rem ##########################################################################
3 | @rem
4 | @rem Gradle startup script for Windows
5 | @rem
6 | @rem ##########################################################################
7 |
8 | @rem Set local scope for the variables with windows NT shell
9 | if "%OS%"=="Windows_NT" setlocal
10 |
11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
12 | set DEFAULT_JVM_OPTS=
13 |
14 | set DIRNAME=%~dp0
15 | if "%DIRNAME%" == "" set DIRNAME=.
16 | set APP_BASE_NAME=%~n0
17 | set APP_HOME=%DIRNAME%
18 |
19 | @rem Find java.exe
20 | if defined JAVA_HOME goto findJavaFromJavaHome
21 |
22 | set JAVA_EXE=java.exe
23 | %JAVA_EXE% -version >NUL 2>&1
24 | if "%ERRORLEVEL%" == "0" goto init
25 |
26 | echo.
27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
28 | echo.
29 | echo Please set the JAVA_HOME variable in your environment to match the
30 | echo location of your Java installation.
31 |
32 | goto fail
33 |
34 | :findJavaFromJavaHome
35 | set JAVA_HOME=%JAVA_HOME:"=%
36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
37 |
38 | if exist "%JAVA_EXE%" goto init
39 |
40 | echo.
41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
42 | echo.
43 | echo Please set the JAVA_HOME variable in your environment to match the
44 | echo location of your Java installation.
45 |
46 | goto fail
47 |
48 | :init
49 | @rem Get command-line arguments, handling Windowz variants
50 |
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | if "%@eval[2+2]" == "4" goto 4NT_args
53 |
54 | :win9xME_args
55 | @rem Slurp the command line arguments.
56 | set CMD_LINE_ARGS=
57 | set _SKIP=2
58 |
59 | :win9xME_args_slurp
60 | if "x%~1" == "x" goto execute
61 |
62 | set CMD_LINE_ARGS=%*
63 | goto execute
64 |
65 | :4NT_args
66 | @rem Get arguments from the 4NT Shell from JP Software
67 | set CMD_LINE_ARGS=%$
68 |
69 | :execute
70 | @rem Setup the command line
71 |
72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
73 |
74 | @rem Execute Gradle
75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
76 |
77 | :end
78 | @rem End local scope for the variables with windows NT shell
79 | if "%ERRORLEVEL%"=="0" goto mainEnd
80 |
81 | :fail
82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
83 | rem the _cmd.exe /c_ return code!
84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
85 | exit /b 1
86 |
87 | :mainEnd
88 | if "%OS%"=="Windows_NT" endlocal
89 |
90 | :omega
91 |
--------------------------------------------------------------------------------
/library/src/main/res/values/attrs.xml:
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1 |
2 |
14 |
15 |
16 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
27 |
28 |
29 |
30 |
31 |
32 |
33 |
34 |
35 |
36 |
40 |
41 |
45 |
46 |
51 |
52 |
55 |
56 |
57 |
58 |
59 |
--------------------------------------------------------------------------------
/demo/src/main/java/com/google/android/cameraview/demo/PictureDialogFragment.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview.demo;
18 |
19 | import android.app.Dialog;
20 | import android.net.Uri;
21 | import android.support.v4.app.DialogFragment;
22 | import android.os.Bundle;
23 | import android.support.annotation.NonNull;
24 | import android.view.LayoutInflater;
25 | import android.view.View;
26 | import android.view.Window;
27 | import android.view.WindowManager;
28 |
29 | import com.facebook.drawee.view.SimpleDraweeView;
30 |
31 | import java.io.File;
32 |
33 | public class PictureDialogFragment extends DialogFragment {
34 |
35 | private static final String ARG_FILE_PATH = "file_path";
36 |
37 | private SimpleDraweeView mImageView;
38 |
39 | public static PictureDialogFragment newInstance(String filePath) {
40 | PictureDialogFragment fragment = new PictureDialogFragment();
41 | Bundle args = new Bundle();
42 | args.putString(ARG_FILE_PATH, filePath);
43 | fragment.setArguments(args);
44 | return fragment;
45 | }
46 |
47 | @NonNull
48 | @Override
49 | public Dialog onCreateDialog(Bundle savedInstanceState) {
50 | final Bundle args = getArguments();
51 | String filePath = args.getString(ARG_FILE_PATH);
52 | Uri uri = Uri.fromFile(new File(filePath));
53 |
54 | View contentView = LayoutInflater.from(getContext()).inflate(R.layout.dialog_picture, null);
55 | mImageView = (SimpleDraweeView) contentView.findViewById(R.id.image);
56 | mImageView.setImageURI(uri);
57 |
58 | Dialog dialog = new Dialog(getContext());
59 | dialog.setCancelable(true);
60 | dialog.setCanceledOnTouchOutside(true);
61 | dialog.setContentView(contentView);
62 |
63 | //make dialog fullscreen
64 | Window window = dialog.getWindow();
65 | window.getDecorView().setPadding(0, 0, 0, 0);//消除边距
66 | WindowManager.LayoutParams layoutParams = window.getAttributes();
67 | layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
68 | layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
69 | window.setAttributes(layoutParams);
70 |
71 | return dialog;
72 | }
73 |
74 | }
--------------------------------------------------------------------------------
/library/src/main/api9/com/google/android/cameraview/SurfaceViewPreview.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.content.Context;
20 | import android.support.v4.view.ViewCompat;
21 | import android.view.Surface;
22 | import android.view.SurfaceHolder;
23 | import android.view.SurfaceView;
24 | import android.view.View;
25 | import android.view.ViewGroup;
26 |
27 | /**
28 | * Android API版本在9到14之间用SurfaceViewPreview
29 | */
30 | class SurfaceViewPreview extends PreviewImpl {
31 |
32 | private final SurfaceView mSurfaceView;
33 |
34 | SurfaceViewPreview(Context context, ViewGroup parent) {
35 | final View view = View.inflate(context, R.layout.surface_view, parent);
36 | mSurfaceView = (SurfaceView) view.findViewById(R.id.surface_view);
37 | final SurfaceHolder holder = mSurfaceView.getHolder();
38 | //noinspection deprecation
39 | holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
40 | holder.addCallback(new SurfaceHolder.Callback() {
41 | @Override
42 | public void surfaceCreated(SurfaceHolder h) {
43 | }
44 |
45 | @Override
46 | public void surfaceChanged(SurfaceHolder h, int format, int width, int height) {
47 | setSize(width, height);
48 | if (!ViewCompat.isInLayout(mSurfaceView)) {
49 | dispatchSurfaceChanged();
50 | }
51 | }
52 |
53 | @Override
54 | public void surfaceDestroyed(SurfaceHolder h) {
55 | setSize(0, 0);
56 | }
57 | });
58 | }
59 |
60 | @Override
61 | Surface getSurface() {
62 | return getSurfaceHolder().getSurface();
63 | }
64 |
65 | @Override
66 | SurfaceHolder getSurfaceHolder() {
67 | return mSurfaceView.getHolder();
68 | }
69 |
70 | @Override
71 | View getView() {
72 | return mSurfaceView;
73 | }
74 |
75 | @Override
76 | Class getOutputClass() {
77 | return SurfaceHolder.class;
78 | }
79 |
80 | @Override
81 | void setDisplayOrientation(int displayOrientation) {
82 | }
83 |
84 | @Override
85 | boolean isReady() {
86 | return getWidth() != 0 && getHeight() != 0;
87 | }
88 |
89 | }
90 |
--------------------------------------------------------------------------------
/library/src/main/base/com/google/android/cameraview/CameraViewImpl.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.view.View;
20 |
21 | import java.util.Set;
22 |
23 | /**
24 | * 不同方式实现CameraView的抽象基类
25 | */
26 | abstract class CameraViewImpl {
27 |
28 | public static final int FOCUS_AREA_SIZE_DEFAULT = 300;
29 | public static final int FOCUS_METERING_AREA_WEIGHT_DEFAULT = 1000;
30 | public static final int DELAY_MILLIS_BEFORE_RESETTING_FOCUS = 3000;
31 |
32 | protected final Callback mCallback;
33 | protected final PreviewImpl mPreview;
34 |
35 | CameraViewImpl(Callback callback, PreviewImpl preview) {
36 | mCallback = callback;
37 | mPreview = preview;
38 | }
39 |
40 | View getView() {
41 | return mPreview.getView();
42 | }
43 |
44 | int getFocusAreaSize() {
45 | return FOCUS_AREA_SIZE_DEFAULT;
46 | }
47 |
48 | int getFocusMeteringAreaWeight() {
49 | return FOCUS_METERING_AREA_WEIGHT_DEFAULT;
50 | }
51 |
52 | void detachFocusTapListener() {
53 | if (mPreview != null && mPreview.getView() != null) {
54 | mPreview.getView().setOnTouchListener(null);
55 | }
56 | }
57 |
58 |
59 | /**
60 | * 抽象方法
61 | */
62 | abstract boolean start();
63 |
64 | abstract void stop();
65 |
66 | abstract boolean isCameraOpened();
67 |
68 | abstract void setFacing(int facing);
69 |
70 | abstract int getFacing();
71 |
72 | abstract Set getSupportedAspectRatios();
73 |
74 | abstract boolean setAspectRatio(AspectRatio ratio);
75 |
76 | abstract AspectRatio getAspectRatio();
77 |
78 | abstract void setAutoFocus(boolean autoFocus);
79 |
80 | abstract boolean getAutoFocus();
81 |
82 | abstract void setFlash(int flash);
83 |
84 | abstract int getFlash();
85 |
86 | abstract void takePicture();
87 |
88 | abstract void setDisplayOrientation(int displayOrientation);
89 |
90 |
91 | /**
92 | * 摄像头相关回调 (camera session callbacks)
93 | */
94 | interface Callback {
95 |
96 | void onCameraOpened();
97 |
98 | void onCameraClosed();
99 |
100 | void onPictureTaken(byte[] data);
101 | }
102 |
103 | }
104 |
105 |
--------------------------------------------------------------------------------
/library/src/main/base/com/google/android/cameraview/SizeMap.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.support.v4.util.ArrayMap;
20 |
21 | import java.util.Set;
22 | import java.util.SortedSet;
23 | import java.util.TreeSet;
24 |
25 | /**
26 | * 从宽高比到图像size的映射,key是宽高比,value是满足这个宽高比的图像size集合
27 | *
28 | * A collection class that automatically groups {@link Size}s by their {@link AspectRatio}s.
29 | */
30 | class SizeMap {
31 |
32 | private final ArrayMap> mRatios = new ArrayMap<>();
33 |
34 | /**
35 | * Add a new {@link Size} to this collection.
36 | *
37 | * @param size The size to add.
38 | * @return {@code true} if it is added, {@code false} if it already exists and is not added.
39 | */
40 | public boolean add(Size size) {
41 | for (AspectRatio ratio : mRatios.keySet()) {
42 | if (ratio.matches(size)) {
43 | final SortedSet sizes = mRatios.get(ratio);
44 | if (sizes.contains(size)) {
45 | return false;
46 | } else {
47 | sizes.add(size);
48 | return true;
49 | }
50 | }
51 | }
52 | // None of the existing ratio matches the provided size; add a new key
53 | SortedSet sizes = new TreeSet<>();
54 | sizes.add(size);
55 | mRatios.put(AspectRatio.of(size.getWidth(), size.getHeight()), sizes);
56 | return true;
57 | }
58 |
59 | /**
60 | * Removes the specified aspect ratio and all sizes associated with it.
61 | */
62 | public void remove(AspectRatio ratio) {
63 | mRatios.remove(ratio);
64 | }
65 |
66 | public Set ratios() {
67 | return mRatios.keySet();
68 | }
69 |
70 | public SortedSet sizes(AspectRatio ratio) {
71 | return mRatios.get(ratio);
72 | }
73 |
74 | public void clear() {
75 | mRatios.clear();
76 | }
77 |
78 | public boolean isEmpty() {
79 | return mRatios.isEmpty();
80 | }
81 |
82 | @Override
83 | public String toString() {
84 | StringBuilder builder = new StringBuilder("");
85 | Set ratioSet = ratios();
86 | for (AspectRatio ratio: ratioSet) {
87 | SortedSet sizeSet = sizes(ratio);
88 | builder.append("[").append(ratio.toString()).append("]:{");
89 | for (Size size : sizeSet) {
90 | builder.append(size.toString()).append(", ");
91 | }
92 | builder.append("}; ");
93 | }
94 | return builder.toString();
95 | }
96 | }
97 |
--------------------------------------------------------------------------------
/library/src/main/base/com/google/android/cameraview/FocusMarkerView.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.animation.Animator;
20 | import android.animation.AnimatorListenerAdapter;
21 | import android.annotation.TargetApi;
22 | import android.content.Context;
23 | import android.support.annotation.NonNull;
24 | import android.support.annotation.Nullable;
25 | import android.util.AttributeSet;
26 | import android.view.LayoutInflater;
27 | import android.widget.FrameLayout;
28 | import android.widget.ImageView;
29 |
30 | /**
31 | * 手动对焦的框框组件
32 | */
33 | @TargetApi(14)
34 | public class FocusMarkerView extends FrameLayout {
35 |
36 | private FrameLayout mFocusMarkerContainer;
37 | private ImageView mFill;
38 |
39 | public FocusMarkerView(@NonNull Context context) {
40 | this(context, null);
41 | }
42 |
43 | public FocusMarkerView(@NonNull Context context, @Nullable AttributeSet attrs) {
44 | super(context, attrs);
45 | LayoutInflater.from(getContext()).inflate(R.layout.layout_focus_marker, this);
46 |
47 | mFocusMarkerContainer = (FrameLayout) findViewById(R.id.focusMarkerContainer);
48 | mFill = (ImageView) findViewById(R.id.fill);
49 |
50 | mFocusMarkerContainer.setAlpha(0);
51 | }
52 |
53 | public void focus(float mx, float my) {
54 | int x = (int) (mx - mFocusMarkerContainer.getWidth() / 2);
55 | int y = (int) (my - mFocusMarkerContainer.getWidth() / 2);
56 |
57 | mFocusMarkerContainer.setTranslationX(x);
58 | mFocusMarkerContainer.setTranslationY(y);
59 |
60 | mFocusMarkerContainer.animate().setListener(null).cancel();
61 | mFill.animate().setListener(null).cancel();
62 |
63 | mFill.setScaleX(0);
64 | mFill.setScaleY(0);
65 | mFill.setAlpha(1f);
66 |
67 | mFocusMarkerContainer.setScaleX(1.36f);
68 | mFocusMarkerContainer.setScaleY(1.36f);
69 | mFocusMarkerContainer.setAlpha(1f);
70 |
71 | mFocusMarkerContainer.animate().scaleX(1).scaleY(1).setStartDelay(0).setDuration(330)
72 | .setListener(new AnimatorListenerAdapter() {
73 | @Override
74 | public void onAnimationEnd(Animator animation) {
75 | super.onAnimationEnd(animation);
76 | mFocusMarkerContainer.animate().alpha(0).setStartDelay(750).setDuration(800).setListener(null).start();
77 | }
78 | }).start();
79 |
80 | mFill.animate().scaleX(1).scaleY(1).setDuration(330)
81 | .setListener(new AnimatorListenerAdapter() {
82 | @Override
83 | public void onAnimationEnd(Animator animation) {
84 | super.onAnimationEnd(animation);
85 | mFill.animate().alpha(0).setDuration(800).setListener(null).start();
86 | }
87 | }).start();
88 |
89 | }
90 |
91 |
92 | }
93 |
--------------------------------------------------------------------------------
/library/src/test/java/com/google/android/cameraview/AspectRatioTest.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import static org.hamcrest.CoreMatchers.is;
20 | import static org.junit.Assert.assertThat;
21 |
22 | import org.junit.Test;
23 |
24 | import java.util.HashSet;
25 |
26 | public class AspectRatioTest {
27 |
28 | @Test
29 | public void testGcd() {
30 | AspectRatio r;
31 | r = AspectRatio.of(1, 2);
32 | assertThat(r.getX(), is(1));
33 | r = AspectRatio.of(2, 4);
34 | assertThat(r.getX(), is(1));
35 | assertThat(r.getY(), is(2));
36 | r = AspectRatio.of(391, 713);
37 | assertThat(r.getX(), is(17));
38 | assertThat(r.getY(), is(31));
39 | }
40 |
41 | @Test
42 | public void testMatches() {
43 | AspectRatio ratio = AspectRatio.of(3, 4);
44 | assertThat(ratio.matches(new Size(6, 8)), is(true));
45 | assertThat(ratio.matches(new Size(1, 2)), is(false));
46 | }
47 |
48 | @Test
49 | public void testGetters() {
50 | AspectRatio ratio = AspectRatio.of(2, 4); // Reduced to 1:2
51 | assertThat(ratio.getX(), is(1));
52 | assertThat(ratio.getY(), is(2));
53 | }
54 |
55 | @Test
56 | public void testToString() {
57 | AspectRatio ratio = AspectRatio.of(1, 2);
58 | assertThat(ratio.toString(), is("1:2"));
59 | }
60 |
61 | @Test
62 | public void testEquals() {
63 | AspectRatio a = AspectRatio.of(1, 2);
64 | AspectRatio b = AspectRatio.of(2, 4);
65 | AspectRatio c = AspectRatio.of(2, 3);
66 | assertThat(a.equals(b), is(true));
67 | assertThat(a.equals(c), is(false));
68 | }
69 |
70 | @Test
71 | public void testHashCode() {
72 | int max = 100;
73 | HashSet codes = new HashSet<>();
74 | for (int x = 1; x <= 100; x++) {
75 | codes.add(AspectRatio.of(x, 1).hashCode());
76 | }
77 | assertThat(codes.size(), is(max));
78 | codes.clear();
79 | for (int y = 1; y <= 100; y++) {
80 | codes.add(AspectRatio.of(1, y).hashCode());
81 | }
82 | assertThat(codes.size(), is(max));
83 | }
84 |
85 | @Test
86 | public void testInverse() {
87 | AspectRatio r = AspectRatio.of(4, 3);
88 | assertThat(r.getX(), is(4));
89 | assertThat(r.getY(), is(3));
90 | AspectRatio s = r.inverse();
91 | assertThat(s.getX(), is(3));
92 | assertThat(s.getY(), is(4));
93 | }
94 |
95 | @Test
96 | public void testParse() {
97 | AspectRatio r = AspectRatio.parse("23:31");
98 | assertThat(r.getX(), is(23));
99 | assertThat(r.getY(), is(31));
100 | }
101 |
102 | @Test(expected = IllegalArgumentException.class)
103 | public void testParseFailure() {
104 | AspectRatio.parse("MALFORMED");
105 | }
106 |
107 | }
108 |
--------------------------------------------------------------------------------
/library/src/main/base/com/google/android/cameraview/DisplayOrientationDetector.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.content.Context;
20 | import android.util.SparseIntArray;
21 | import android.view.Display;
22 | import android.view.OrientationEventListener;
23 | import android.view.Surface;
24 |
25 |
26 | /**
27 | * Monitors the value returned from {@link Display#getRotation()}.
28 | */
29 | abstract class DisplayOrientationDetector {
30 |
31 | private final OrientationEventListener mOrientationEventListener;
32 |
33 | /** Mapping from Surface.Rotation_n to degrees. */
34 | private static final SparseIntArray DISPLAY_ORIENTATIONS = new SparseIntArray();
35 |
36 | static {
37 | DISPLAY_ORIENTATIONS.put(Surface.ROTATION_0, 0);
38 | DISPLAY_ORIENTATIONS.put(Surface.ROTATION_90, 90);
39 | DISPLAY_ORIENTATIONS.put(Surface.ROTATION_180, 180);
40 | DISPLAY_ORIENTATIONS.put(Surface.ROTATION_270, 270);
41 | }
42 |
43 | private Display mDisplay;
44 |
45 | private int mLastKnownDisplayOrientation = 0;
46 |
47 | public DisplayOrientationDetector(Context context) {
48 | mOrientationEventListener = new OrientationEventListener(context) {
49 |
50 | /** This is either Surface.Rotation_0, _90, _180, _270, or -1 (invalid). */
51 | private int mLastKnownRotation = -1;
52 |
53 | @Override
54 | public void onOrientationChanged(int orientation) {
55 | if (orientation == OrientationEventListener.ORIENTATION_UNKNOWN ||
56 | mDisplay == null) {
57 | return;
58 | }
59 | final int rotation = mDisplay.getRotation();
60 | if (mLastKnownRotation != rotation) {
61 | mLastKnownRotation = rotation;
62 | dispatchOnDisplayOrientationChanged(DISPLAY_ORIENTATIONS.get(rotation));
63 | }
64 | }
65 | };
66 | }
67 |
68 | public void enable(Display display) {
69 | mDisplay = display;
70 | mOrientationEventListener.enable();
71 | // Immediately dispatch the first callback
72 | dispatchOnDisplayOrientationChanged(DISPLAY_ORIENTATIONS.get(display.getRotation()));
73 | }
74 |
75 | public void disable() {
76 | mOrientationEventListener.disable();
77 | mDisplay = null;
78 | }
79 |
80 | public int getLastKnownDisplayOrientation() {
81 | return mLastKnownDisplayOrientation;
82 | }
83 |
84 | private void dispatchOnDisplayOrientationChanged(int displayOrientation) {
85 | mLastKnownDisplayOrientation = displayOrientation;
86 | onDisplayOrientationChanged(displayOrientation);
87 | }
88 |
89 | /**
90 | * Called when display orientation is changed.
91 | *
92 | * @param displayOrientation One of 0, 90, 180, and 270.
93 | */
94 | public abstract void onDisplayOrientationChanged(int displayOrientation);
95 |
96 | }
97 |
--------------------------------------------------------------------------------
/demo/src/main/java/com/google/android/cameraview/demo/ConfirmationDialogFragment.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview.demo;
18 |
19 | import android.app.Dialog;
20 | import android.content.DialogInterface;
21 | import android.os.Bundle;
22 | import android.support.annotation.NonNull;
23 | import android.support.annotation.StringRes;
24 | import android.support.v4.app.ActivityCompat;
25 | import android.support.v4.app.DialogFragment;
26 | import android.support.v7.app.AlertDialog;
27 | import android.widget.Toast;
28 |
29 | public class ConfirmationDialogFragment extends DialogFragment {
30 |
31 | private static final String ARG_MESSAGE = "message";
32 | private static final String ARG_PERMISSIONS = "permissions";
33 | private static final String ARG_REQUEST_CODE = "request_code";
34 | private static final String ARG_NOT_GRANTED_MESSAGE = "not_granted_message";
35 |
36 | public static ConfirmationDialogFragment newInstance(@StringRes int message, String[] permissions, int requestCode, @StringRes int notGrantedMessage) {
37 | ConfirmationDialogFragment fragment = new ConfirmationDialogFragment();
38 | Bundle args = new Bundle();
39 | args.putInt(ARG_MESSAGE, message);
40 | args.putStringArray(ARG_PERMISSIONS, permissions);
41 | args.putInt(ARG_REQUEST_CODE, requestCode);
42 | args.putInt(ARG_NOT_GRANTED_MESSAGE, notGrantedMessage);
43 | fragment.setArguments(args);
44 | return fragment;
45 | }
46 |
47 | @NonNull
48 | @Override
49 | public Dialog onCreateDialog(Bundle savedInstanceState) {
50 | final Bundle args = getArguments();
51 | return new AlertDialog.Builder(getActivity())
52 | .setMessage(args.getInt(ARG_MESSAGE))
53 | .setPositiveButton(android.R.string.ok,
54 | new DialogInterface.OnClickListener() {
55 | @Override
56 | public void onClick(DialogInterface dialog, int which) {
57 | String[] permissions = args.getStringArray(ARG_PERMISSIONS);
58 | if (permissions == null) {
59 | throw new IllegalArgumentException();
60 | }
61 | ActivityCompat.requestPermissions(getActivity(), permissions, args.getInt(ARG_REQUEST_CODE));
62 | }
63 | })
64 | .setNegativeButton(android.R.string.cancel,
65 | new DialogInterface.OnClickListener() {
66 | @Override
67 | public void onClick(DialogInterface dialog, int which) {
68 | Toast.makeText(getActivity(), args.getInt(ARG_NOT_GRANTED_MESSAGE), Toast.LENGTH_SHORT).show();
69 | }
70 | })
71 | .create();
72 | }
73 |
74 | }
--------------------------------------------------------------------------------
/library/src/main/base/com/google/android/cameraview/CameraLogDefaultLoggingDelegate.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.util.Log;
20 |
21 | import java.io.PrintWriter;
22 | import java.io.StringWriter;
23 |
24 | /**
25 | * LoggingDelegate的默认实现就是println方式输出日志
26 | *
27 | * Created by javayhu on 8/19/17.
28 | */
29 | public class CameraLogDefaultLoggingDelegate implements LoggingDelegate {
30 |
31 | public static final CameraLogDefaultLoggingDelegate sInstance =
32 | new CameraLogDefaultLoggingDelegate();
33 |
34 | private String mApplicationTag = "camera";
35 | private int mMinimumLoggingLevel = Log.INFO;
36 |
37 | private CameraLogDefaultLoggingDelegate() {
38 | }
39 |
40 | public static CameraLogDefaultLoggingDelegate getInstance() {
41 | return sInstance;
42 | }
43 |
44 | private static String getMsg(String msg, Throwable tr) {
45 | return msg + '\n' + getStackTraceString(tr);
46 | }
47 |
48 | private static String getStackTraceString(Throwable tr) {
49 | if (tr == null) {
50 | return "";
51 | }
52 | StringWriter sw = new StringWriter();
53 | PrintWriter pw = new PrintWriter(sw);
54 | tr.printStackTrace(pw);
55 | return sw.toString();
56 | }
57 |
58 | /**
59 | * Sets an application tag that is used for checking if a log line is loggable and also
60 | * to prefix to all log lines.
61 | *
62 | * @param tag the tag
63 | */
64 | public void setApplicationTag(String tag) {
65 | mApplicationTag = tag;
66 | }
67 |
68 | @Override
69 | public int getMinimumLoggingLevel() {
70 | return mMinimumLoggingLevel;
71 | }
72 |
73 | @Override
74 | public void setMinimumLoggingLevel(int level) {
75 | mMinimumLoggingLevel = level;
76 | }
77 |
78 | @Override
79 | public boolean isLoggable(int level) {
80 | return mMinimumLoggingLevel <= level;
81 | }
82 |
83 | @Override
84 | public void v(String tag, String msg) {
85 | println(Log.VERBOSE, tag, msg);
86 | }
87 |
88 | @Override
89 | public void v(String tag, String msg, Throwable tr) {
90 | println(Log.VERBOSE, tag, msg, tr);
91 | }
92 |
93 | @Override
94 | public void d(String tag, String msg) {
95 | println(Log.DEBUG, tag, msg);
96 | }
97 |
98 | @Override
99 | public void d(String tag, String msg, Throwable tr) {
100 | println(Log.DEBUG, tag, msg, tr);
101 | }
102 |
103 | @Override
104 | public void i(String tag, String msg) {
105 | println(Log.INFO, tag, msg);
106 | }
107 |
108 | @Override
109 | public void i(String tag, String msg, Throwable tr) {
110 | println(Log.INFO, tag, msg, tr);
111 | }
112 |
113 | @Override
114 | public void w(String tag, String msg) {
115 | println(Log.WARN, tag, msg);
116 | }
117 |
118 | @Override
119 | public void w(String tag, String msg, Throwable tr) {
120 | println(Log.WARN, tag, msg, tr);
121 | }
122 |
123 | @Override
124 | public void e(String tag, String msg) {
125 | println(Log.ERROR, tag, msg);
126 | }
127 |
128 | @Override
129 | public void e(String tag, String msg, Throwable tr) {
130 | println(Log.ERROR, tag, msg, tr);
131 | }
132 |
133 | /**
134 | *
Note: this gets forwarded to {@code android.util.Log.e} as {@code android.util.Log.wtf}
135 | * might crash the app.
136 | */
137 | @Override
138 | public void wtf(String tag, String msg) {
139 | println(Log.ERROR, tag, msg);
140 | }
141 |
142 | /**
143 | *
Note: this gets forwarded to {@code android.util.Log.e} as {@code android.util.Log.wtf}
144 | * might crash the app.
145 | */
146 | @Override
147 | public void wtf(String tag, String msg, Throwable tr) {
148 | println(Log.ERROR, tag, msg, tr);
149 | }
150 |
151 | @Override
152 | public void log(int priority, String tag, String msg) {
153 | println(priority, tag, msg);
154 | }
155 |
156 | private void println(int priority, String tag, String msg) {
157 | Log.println(priority, prefixTag(tag), msg);
158 | }
159 |
160 | private void println(int priority, String tag, String msg, Throwable tr) {
161 | Log.println(priority, prefixTag(tag), getMsg(msg, tr));
162 | }
163 |
164 | private String prefixTag(String tag) {
165 | if (mApplicationTag != null) {
166 | return mApplicationTag + ":" + tag;
167 | } else {
168 | return tag;
169 | }
170 | }
171 | }
--------------------------------------------------------------------------------
/demo/src/main/java/com/google/android/cameraview/demo/AspectRatioFragment.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview.demo;
18 |
19 | import android.app.Dialog;
20 | import android.content.Context;
21 | import android.content.DialogInterface;
22 | import android.os.Bundle;
23 | import android.support.annotation.NonNull;
24 | import android.support.v4.app.DialogFragment;
25 | import android.support.v7.app.AlertDialog;
26 | import android.view.LayoutInflater;
27 | import android.view.View;
28 | import android.view.ViewGroup;
29 | import android.widget.BaseAdapter;
30 | import android.widget.TextView;
31 |
32 | import com.google.android.cameraview.AspectRatio;
33 |
34 | import java.util.Arrays;
35 | import java.util.Set;
36 |
37 |
38 | /**
39 | * A simple dialog that allows user to pick an aspect ratio.
40 | */
41 | public class AspectRatioFragment extends DialogFragment {
42 |
43 | private static final String ARG_ASPECT_RATIOS = "aspect_ratios";
44 | private static final String ARG_CURRENT_ASPECT_RATIO = "current_aspect_ratio";
45 |
46 | private Listener mListener;
47 |
48 | public static AspectRatioFragment newInstance(Set ratios, AspectRatio currentRatio) {
49 | final AspectRatioFragment fragment = new AspectRatioFragment();
50 | final Bundle args = new Bundle();
51 | args.putParcelableArray(ARG_ASPECT_RATIOS, ratios.toArray(new AspectRatio[ratios.size()]));
52 | args.putParcelable(ARG_CURRENT_ASPECT_RATIO, currentRatio);
53 | fragment.setArguments(args);
54 | return fragment;
55 | }
56 |
57 | @Override
58 | public void onAttach(Context context) {
59 | super.onAttach(context);
60 | mListener = (Listener) context;
61 | }
62 |
63 | @Override
64 | public void onDetach() {
65 | mListener = null;
66 | super.onDetach();
67 | }
68 |
69 | @NonNull
70 | @Override
71 | public Dialog onCreateDialog(Bundle savedInstanceState) {
72 | final Bundle args = getArguments();
73 | final AspectRatio[] ratios = (AspectRatio[]) args.getParcelableArray(ARG_ASPECT_RATIOS);
74 | if (ratios == null) {
75 | throw new RuntimeException("No ratios");
76 | }
77 | Arrays.sort(ratios);
78 | final AspectRatio current = args.getParcelable(ARG_CURRENT_ASPECT_RATIO);
79 | final AspectRatioAdapter adapter = new AspectRatioAdapter(ratios, current);
80 | return new AlertDialog.Builder(getActivity())
81 | .setAdapter(adapter, new DialogInterface.OnClickListener() {
82 | @Override
83 | public void onClick(DialogInterface dialog, int position) {
84 | mListener.onAspectRatioSelected(ratios[position]);
85 | }
86 | })
87 | .create();
88 | }
89 |
90 | private static class AspectRatioAdapter extends BaseAdapter {
91 |
92 | private final AspectRatio[] mRatios;
93 | private final AspectRatio mCurrentRatio;
94 |
95 | AspectRatioAdapter(AspectRatio[] ratios, AspectRatio current) {
96 | mRatios = ratios;
97 | mCurrentRatio = current;
98 | }
99 |
100 | @Override
101 | public int getCount() {
102 | return mRatios.length;
103 | }
104 |
105 | @Override
106 | public AspectRatio getItem(int position) {
107 | return mRatios[position];
108 | }
109 |
110 | @Override
111 | public long getItemId(int position) {
112 | return getItem(position).hashCode();
113 | }
114 |
115 | @Override
116 | public View getView(int position, View view, ViewGroup parent) {
117 | AspectRatioAdapter.ViewHolder holder;
118 | if (view == null) {
119 | view = LayoutInflater.from(parent.getContext()).inflate(android.R.layout.simple_list_item_1, parent, false);
120 | holder = new AspectRatioAdapter.ViewHolder();
121 | holder.text = (TextView) view.findViewById(android.R.id.text1);
122 | view.setTag(holder);
123 | } else {
124 | holder = (AspectRatioAdapter.ViewHolder) view.getTag();
125 | }
126 | AspectRatio ratio = getItem(position);
127 | StringBuilder sb = new StringBuilder(ratio.toString());
128 | if (ratio.equals(mCurrentRatio)) {
129 | sb.append(" *");
130 | }
131 | holder.text.setText(sb);
132 | return view;
133 | }
134 |
135 | private static class ViewHolder {
136 | TextView text;
137 | }
138 |
139 | }
140 |
141 | public interface Listener {
142 | void onAspectRatioSelected(@NonNull AspectRatio ratio);
143 | }
144 |
145 | }
146 |
--------------------------------------------------------------------------------
/gradlew:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env bash
2 |
3 | ##############################################################################
4 | ##
5 | ## Gradle start up script for UN*X
6 | ##
7 | ##############################################################################
8 |
9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
10 | DEFAULT_JVM_OPTS=""
11 |
12 | APP_NAME="Gradle"
13 | APP_BASE_NAME=`basename "$0"`
14 |
15 | # Use the maximum available, or set MAX_FD != -1 to use that value.
16 | MAX_FD="maximum"
17 |
18 | warn ( ) {
19 | echo "$*"
20 | }
21 |
22 | die ( ) {
23 | echo
24 | echo "$*"
25 | echo
26 | exit 1
27 | }
28 |
29 | # OS specific support (must be 'true' or 'false').
30 | cygwin=false
31 | msys=false
32 | darwin=false
33 | case "`uname`" in
34 | CYGWIN* )
35 | cygwin=true
36 | ;;
37 | Darwin* )
38 | darwin=true
39 | ;;
40 | MINGW* )
41 | msys=true
42 | ;;
43 | esac
44 |
45 | # Attempt to set APP_HOME
46 | # Resolve links: $0 may be a link
47 | PRG="$0"
48 | # Need this for relative symlinks.
49 | while [ -h "$PRG" ] ; do
50 | ls=`ls -ld "$PRG"`
51 | link=`expr "$ls" : '.*-> \(.*\)$'`
52 | if expr "$link" : '/.*' > /dev/null; then
53 | PRG="$link"
54 | else
55 | PRG=`dirname "$PRG"`"/$link"
56 | fi
57 | done
58 | SAVED="`pwd`"
59 | cd "`dirname \"$PRG\"`/" >/dev/null
60 | APP_HOME="`pwd -P`"
61 | cd "$SAVED" >/dev/null
62 |
63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
64 |
65 | # Determine the Java command to use to start the JVM.
66 | if [ -n "$JAVA_HOME" ] ; then
67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
68 | # IBM's JDK on AIX uses strange locations for the executables
69 | JAVACMD="$JAVA_HOME/jre/sh/java"
70 | else
71 | JAVACMD="$JAVA_HOME/bin/java"
72 | fi
73 | if [ ! -x "$JAVACMD" ] ; then
74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
75 |
76 | Please set the JAVA_HOME variable in your environment to match the
77 | location of your Java installation."
78 | fi
79 | else
80 | JAVACMD="java"
81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
82 |
83 | Please set the JAVA_HOME variable in your environment to match the
84 | location of your Java installation."
85 | fi
86 |
87 | # Increase the maximum file descriptors if we can.
88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
89 | MAX_FD_LIMIT=`ulimit -H -n`
90 | if [ $? -eq 0 ] ; then
91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
92 | MAX_FD="$MAX_FD_LIMIT"
93 | fi
94 | ulimit -n $MAX_FD
95 | if [ $? -ne 0 ] ; then
96 | warn "Could not set maximum file descriptor limit: $MAX_FD"
97 | fi
98 | else
99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
100 | fi
101 | fi
102 |
103 | # For Darwin, add options to specify how the application appears in the dock
104 | if $darwin; then
105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
106 | fi
107 |
108 | # For Cygwin, switch paths to Windows format before running java
109 | if $cygwin ; then
110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"`
111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
112 | JAVACMD=`cygpath --unix "$JAVACMD"`
113 |
114 | # We build the pattern for arguments to be converted via cygpath
115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
116 | SEP=""
117 | for dir in $ROOTDIRSRAW ; do
118 | ROOTDIRS="$ROOTDIRS$SEP$dir"
119 | SEP="|"
120 | done
121 | OURCYGPATTERN="(^($ROOTDIRS))"
122 | # Add a user-defined pattern to the cygpath arguments
123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then
124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
125 | fi
126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh
127 | i=0
128 | for arg in "$@" ; do
129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
131 |
132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
134 | else
135 | eval `echo args$i`="\"$arg\""
136 | fi
137 | i=$((i+1))
138 | done
139 | case $i in
140 | (0) set -- ;;
141 | (1) set -- "$args0" ;;
142 | (2) set -- "$args0" "$args1" ;;
143 | (3) set -- "$args0" "$args1" "$args2" ;;
144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
150 | esac
151 | fi
152 |
153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
154 | function splitJvmOpts() {
155 | JVM_OPTS=("$@")
156 | }
157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
159 |
160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
161 |
--------------------------------------------------------------------------------
/library/src/main/api14/com/google/android/cameraview/TextureViewPreview.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.annotation.TargetApi;
20 | import android.content.Context;
21 | import android.graphics.Matrix;
22 | import android.graphics.SurfaceTexture;
23 | import android.view.Surface;
24 | import android.view.TextureView;
25 | import android.view.View;
26 | import android.view.ViewGroup;
27 |
28 | /**
29 | * Android系统从4.0 (API 14)版本开始引入了TextureView,比SurfaceView更加强大
30 | */
31 | @TargetApi(14)
32 | class TextureViewPreview extends PreviewImpl {
33 |
34 | private static final String TAG = TextureViewPreview.class.getSimpleName();
35 |
36 | private final TextureView mTextureView;
37 |
38 | private int mDisplayOrientation;
39 |
40 | TextureViewPreview(Context context, ViewGroup parent) {
41 | final View view = View.inflate(context, R.layout.texture_view, parent);
42 | mTextureView = (TextureView) view.findViewById(R.id.texture_view);
43 | mTextureView.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() {
44 |
45 | @Override
46 | public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
47 | CameraLog.i(TAG, "onSurfaceTextureAvailable, width = %d, height = %d", width, height);//width = 1605, height = 2140
48 | setSize(width, height);
49 | configureTransform();
50 | dispatchSurfaceChanged();
51 | }
52 |
53 | @Override
54 | public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {
55 | CameraLog.i(TAG, "onSurfaceTextureSizeChanged, width = %d, height = %d", width, height);
56 | setSize(width, height);
57 | configureTransform();
58 | dispatchSurfaceChanged();
59 | }
60 |
61 | @Override
62 | public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
63 | CameraLog.i(TAG, "onSurfaceTextureDestroyed");
64 | setSize(0, 0);
65 | return true;
66 | }
67 |
68 | @Override
69 | public void onSurfaceTextureUpdated(SurfaceTexture surface) {
70 | }
71 | });
72 | }
73 |
74 | // This method is called only from Camera2.
75 | @TargetApi(15)
76 | @Override
77 | void setBufferSize(int width, int height) {
78 | mTextureView.getSurfaceTexture().setDefaultBufferSize(width, height);
79 | }
80 |
81 | @Override
82 | Surface getSurface() {
83 | return new Surface(mTextureView.getSurfaceTexture());
84 | }
85 |
86 | @Override
87 | SurfaceTexture getSurfaceTexture() {
88 | return mTextureView.getSurfaceTexture();
89 | }
90 |
91 | @Override
92 | View getView() {
93 | return mTextureView;
94 | }
95 |
96 | @Override
97 | Class getOutputClass() {
98 | return SurfaceTexture.class;
99 | }
100 |
101 | @Override
102 | void setDisplayOrientation(int displayOrientation) {
103 | mDisplayOrientation = displayOrientation;
104 | configureTransform();
105 | }
106 |
107 | @Override
108 | boolean isReady() {
109 | return mTextureView.getSurfaceTexture() != null;
110 | }
111 |
112 | /**
113 | * Configures the transform matrix for TextureView based on {@link #mDisplayOrientation} and
114 | * the surface size.
115 | */
116 | private void configureTransform() {
117 | Matrix matrix = new Matrix();
118 | if (mDisplayOrientation % 180 == 90) {
119 | final int width = getWidth();
120 | final int height = getHeight();
121 | // Rotate the camera preview when the screen is landscape.
122 | matrix.setPolyToPoly(
123 | new float[]{
124 | 0.f, 0.f, // top left
125 | width, 0.f, // top right
126 | 0.f, height, // bottom left
127 | width, height, // bottom right
128 | }, 0,
129 | mDisplayOrientation == 90 ?
130 | // Clockwise
131 | new float[]{
132 | 0.f, height, // top left
133 | 0.f, 0.f, // top right
134 | width, height, // bottom left
135 | width, 0.f, // bottom right
136 | } : // mDisplayOrientation == 270
137 | // Counter-clockwise
138 | new float[]{
139 | width, 0.f, // top left
140 | width, height, // top right
141 | 0.f, 0.f, // bottom left
142 | 0.f, height, // bottom right
143 | }, 0,
144 | 4);
145 | } else if (mDisplayOrientation == 180) {
146 | matrix.postRotate(180, getWidth() / 2, getHeight() / 2);
147 | }
148 | mTextureView.setTransform(matrix);
149 | }
150 |
151 | }
152 |
--------------------------------------------------------------------------------
/library/src/main/base/com/google/android/cameraview/AspectRatio.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | import android.os.Parcel;
20 | import android.os.Parcelable;
21 | import android.support.annotation.NonNull;
22 | import android.support.v4.util.SparseArrayCompat;
23 |
24 | /**
25 | * 摄像头的宽高比
26 | *
27 | * Immutable class for describing proportional relationship between width and height.
28 | */
29 | public class AspectRatio implements Comparable, Parcelable {
30 |
31 | private final static SparseArrayCompat> sCache = new SparseArrayCompat<>(16);
32 |
33 | private final int mX;//宽
34 | private final int mY;//高
35 |
36 | /**
37 | * Returns an instance of {@link AspectRatio} specified by {@code x} and {@code y} values.
38 | * The values {@code x} and {@code} will be reduced by their greatest common divider.
39 | *
40 | * @param x The width
41 | * @param y The height
42 | * @return An instance of {@link AspectRatio}
43 | */
44 | public static AspectRatio of(int x, int y) {
45 | int gcd = gcd(x, y);
46 | x /= gcd;
47 | y /= gcd;
48 | SparseArrayCompat arrayX = sCache.get(x);
49 | if (arrayX == null) {
50 | AspectRatio ratio = new AspectRatio(x, y);
51 | arrayX = new SparseArrayCompat<>();
52 | arrayX.put(y, ratio);
53 | sCache.put(x, arrayX);
54 | return ratio;
55 | } else {
56 | AspectRatio ratio = arrayX.get(y);
57 | if (ratio == null) {
58 | ratio = new AspectRatio(x, y);
59 | arrayX.put(y, ratio);
60 | }
61 | return ratio;
62 | }
63 | }
64 |
65 | /**
66 | * Parse an {@link AspectRatio} from a {@link String} formatted like "4:3".
67 | *
68 | * @param s The string representation of the aspect ratio
69 | * @return The aspect ratio
70 | * @throws IllegalArgumentException when the format is incorrect.
71 | */
72 | public static AspectRatio parse(String s) {
73 | int position = s.indexOf(':');
74 | if (position == -1) {
75 | throw new IllegalArgumentException("Malformed aspect ratio: " + s);
76 | }
77 | try {
78 | int x = Integer.parseInt(s.substring(0, position));
79 | int y = Integer.parseInt(s.substring(position + 1));
80 | return AspectRatio.of(x, y);
81 | } catch (NumberFormatException e) {
82 | throw new IllegalArgumentException("Malformed aspect ratio: " + s, e);
83 | }
84 | }
85 |
86 | private AspectRatio(int x, int y) {
87 | mX = x;
88 | mY = y;
89 | }
90 |
91 | public int getX() {
92 | return mX;
93 | }
94 |
95 | public int getY() {
96 | return mY;
97 | }
98 |
99 | public boolean matches(Size size) {
100 | int gcd = gcd(size.getWidth(), size.getHeight());
101 | int x = size.getWidth() / gcd;
102 | int y = size.getHeight() / gcd;
103 | return mX == x && mY == y;
104 | }
105 |
106 | @Override
107 | public boolean equals(Object o) {
108 | if (o == null) {
109 | return false;
110 | }
111 | if (this == o) {
112 | return true;
113 | }
114 | if (o instanceof AspectRatio) {
115 | AspectRatio ratio = (AspectRatio) o;
116 | return mX == ratio.mX && mY == ratio.mY;
117 | }
118 | return false;
119 | }
120 |
121 | @Override
122 | public String toString() {
123 | return mX + ":" + mY;
124 | }
125 |
126 | public float toFloat() {
127 | return (float) mX / mY;
128 | }
129 |
130 | @Override
131 | public int hashCode() {
132 | // assuming most sizes are <2^16, doing a rotate will give us perfect hashing
133 | return mY ^ ((mX << (Integer.SIZE / 2)) | (mX >>> (Integer.SIZE / 2)));
134 | }
135 |
136 | @Override
137 | public int compareTo(@NonNull AspectRatio another) {
138 | if (equals(another)) {
139 | return 0;
140 | } else if (toFloat() - another.toFloat() > 0) {
141 | return 1;
142 | }
143 | return -1;
144 | }
145 |
146 | /**
147 | * 4:3的宽高比变成3:4
148 | *
149 | * @return The inverse of this {@link AspectRatio}.
150 | */
151 | public AspectRatio inverse() {
152 | //noinspection SuspiciousNameCombination
153 | return AspectRatio.of(mY, mX);
154 | }
155 |
156 | private static int gcd(int a, int b) {
157 | while (b != 0) {
158 | int c = b;
159 | b = a % b;
160 | a = c;
161 | }
162 | return a;
163 | }
164 |
165 | @Override
166 | public int describeContents() {
167 | return 0;
168 | }
169 |
170 | @Override
171 | public void writeToParcel(Parcel dest, int flags) {
172 | dest.writeInt(mX);
173 | dest.writeInt(mY);
174 | }
175 |
176 | public static final Parcelable.Creator CREATOR = new Parcelable.Creator() {
177 |
178 | @Override
179 | public AspectRatio createFromParcel(Parcel source) {
180 | int x = source.readInt();
181 | int y = source.readInt();
182 | return AspectRatio.of(x, y);
183 | }
184 |
185 | @Override
186 | public AspectRatio[] newArray(int size) {
187 | return new AspectRatio[size];
188 | }
189 | };
190 |
191 | }
192 |
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/library/src/main/base/com/google/android/cameraview/LoggingDelegate.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview;
18 |
19 | /**
20 | * Logging interface (参照FB RN源码模式)
21 | *
22 | * Created by javayhu on 8/19/17.
23 | */
24 | public interface LoggingDelegate {
25 |
26 | /**
27 | * Gets a minimum log-level under which the logger will not log regardless of other checks.
28 | *
29 | * @return the minimum level
30 | */
31 | int getMinimumLoggingLevel();
32 |
33 | /**
34 | * Sets a minimum log-level under which the logger will not log regardless of other checks.
35 | *
36 | * @param level the minimum level to set
37 | */
38 | void setMinimumLoggingLevel(int level);
39 |
40 | /**
41 | * Gets whether the specified level is loggable.
42 | *
43 | * @param level the level to check
44 | * @return the level
45 | */
46 | boolean isLoggable(int level);
47 |
48 | /**
49 | * Send a {@link android.util.Log#VERBOSE} log message.
50 | *
51 | * @param tag Used to identify the source of a log message. It usually identifies
52 | * the class or activity where the log call occurs.
53 | * @param msg The message you would like logged.
54 | */
55 | void v(String tag, String msg);
56 |
57 | /**
58 | * Send a {@link android.util.Log#VERBOSE} log message and log the exception.
59 | *
60 | * @param tag Used to identify the source of a log message. It usually identifies
61 | * the class or activity where the log call occurs.
62 | * @param msg The message you would like logged.
63 | * @param tr An exception to log
64 | */
65 | void v(String tag, String msg, Throwable tr);
66 |
67 | /**
68 | * Send a {@link android.util.Log#DEBUG} log message.
69 | *
70 | * @param tag Used to identify the source of a log message. It usually identifies
71 | * the class or activity where the log call occurs.
72 | * @param msg The message you would like logged.
73 | */
74 | void d(String tag, String msg);
75 |
76 | /**
77 | * Send a {@link android.util.Log#DEBUG} log message and log the exception.
78 | *
79 | * @param tag Used to identify the source of a log message. It usually identifies
80 | * the class or activity where the log call occurs.
81 | * @param msg The message you would like logged.
82 | * @param tr An exception to log
83 | */
84 | void d(String tag, String msg, Throwable tr);
85 |
86 | /**
87 | * Send an {@link android.util.Log#INFO} log message.
88 | *
89 | * @param tag Used to identify the source of a log message. It usually identifies
90 | * the class or activity where the log call occurs.
91 | * @param msg The message you would like logged.
92 | */
93 | void i(String tag, String msg);
94 |
95 | /**
96 | * Send a {@link android.util.Log#INFO} log message and log the exception.
97 | *
98 | * @param tag Used to identify the source of a log message. It usually identifies
99 | * the class or activity where the log call occurs.
100 | * @param msg The message you would like logged.
101 | * @param tr An exception to log
102 | */
103 | void i(String tag, String msg, Throwable tr);
104 |
105 | /**
106 | * Send a {@link android.util.Log#WARN} log message.
107 | *
108 | * @param tag Used to identify the source of a log message. It usually identifies
109 | * the class or activity where the log call occurs.
110 | * @param msg The message you would like logged.
111 | */
112 | void w(String tag, String msg);
113 |
114 | /**
115 | * Send a {@link android.util.Log#WARN} log message and log the exception.
116 | *
117 | * @param tag Used to identify the source of a log message. It usually identifies
118 | * the class or activity where the log call occurs.
119 | * @param msg The message you would like logged.
120 | * @param tr An exception to log
121 | */
122 | void w(String tag, String msg, Throwable tr);
123 |
124 | /**
125 | * Send an {@link android.util.Log#ERROR} log message.
126 | *
127 | * @param tag Used to identify the source of a log message. It usually identifies
128 | * the class or activity where the log call occurs.
129 | * @param msg The message you would like logged.
130 | */
131 | void e(String tag, String msg);
132 |
133 | /**
134 | * Send a {@link android.util.Log#ERROR} log message and log the exception.
135 | *
136 | * @param tag Used to identify the source of a log message. It usually identifies
137 | * the class or activity where the log call occurs.
138 | * @param msg The message you would like logged.
139 | * @param tr An exception to log
140 | */
141 | void e(String tag, String msg, Throwable tr);
142 |
143 | /**
144 | * Send an {@link android.util.Log#ERROR} log message.
145 | * Send wtf soft error report (sampled).
146 | * Note: This is not equivalent of {@link android.util.Log#wtf}.
147 | *
148 | * @param tag Used to identify the source of a log message.
149 | * @param msg The message you would like logged.
150 | */
151 | void wtf(String tag, String msg);
152 |
153 | /**
154 | * Send an {@link android.util.Log#ERROR} log message.
155 | * Send wtf soft error report (sampled).
156 | * Note: This is not equivalent of {@link android.util.Log#wtf}.
157 | *
158 | * @param tag Used to identify the source of a log message.
159 | * @param msg The message you would like logged.
160 | * @param tr An exception to log. May be null.
161 | */
162 | void wtf(String tag, String msg, Throwable tr);
163 |
164 | /**
165 | * Logs a message.
166 | *
167 | * @param priority the priority of the message
168 | * @param tag Used to identify the source of a log message.
169 | * @param msg The message you would like logged.
170 | */
171 | void log(int priority, String tag, String msg);
172 | }
173 |
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/demo/src/main/java/com/google/android/cameraview/demo/MainActivity.java:
--------------------------------------------------------------------------------
1 | /*
2 | * Copyright (C) 2016 The Android Open Source Project
3 | *
4 | * Licensed under the Apache License, Version 2.0 (the "License");
5 | * you may not use this file except in compliance with the License.
6 | * You may obtain a copy of the License at
7 | *
8 | * http://www.apache.org/licenses/LICENSE-2.0
9 | *
10 | * Unless required by applicable law or agreed to in writing, software
11 | * distributed under the License is distributed on an "AS IS" BASIS,
12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 | * See the License for the specific language governing permissions and
14 | * limitations under the License.
15 | */
16 |
17 | package com.google.android.cameraview.demo;
18 |
19 | import android.Manifest;
20 | import android.content.pm.PackageManager;
21 | import android.os.Build;
22 | import android.os.Bundle;
23 | import android.os.Environment;
24 | import android.os.Handler;
25 | import android.os.HandlerThread;
26 | import android.support.annotation.NonNull;
27 | import android.support.design.widget.FloatingActionButton;
28 | import android.support.v4.app.ActivityCompat;
29 | import android.support.v4.app.FragmentManager;
30 | import android.support.v4.content.ContextCompat;
31 | import android.support.v7.app.ActionBar;
32 | import android.support.v7.app.AppCompatActivity;
33 | import android.support.v7.widget.Toolbar;
34 | import android.util.Log;
35 | import android.view.Menu;
36 | import android.view.MenuItem;
37 | import android.view.View;
38 | import android.widget.Toast;
39 |
40 | import com.google.android.cameraview.AspectRatio;
41 | import com.google.android.cameraview.CameraView;
42 |
43 | import java.io.File;
44 | import java.io.FileOutputStream;
45 | import java.io.IOException;
46 | import java.io.OutputStream;
47 | import java.util.Set;
48 |
49 |
50 | /**
51 | * This demo app saves the taken picture to a constant file.
52 | * $ adb pull /sdcard/Android/data/com.google.android.cameraview.demo/files/Pictures/picture.jpg
53 | */
54 | public class MainActivity extends AppCompatActivity implements ActivityCompat.OnRequestPermissionsResultCallback, AspectRatioFragment.Listener {
55 |
56 | private static final String TAG = "MainActivity";
57 |
58 | private static final int REQUEST_CAMERA_PERMISSION = 1;
59 |
60 | private static final String FRAGMENT_PERMISSION = "permission";
61 | private static final String FRAGMENT_PICTURE = "picture";
62 |
63 | private static final int[] FLASH_OPTIONS = {
64 | CameraView.FLASH_AUTO,
65 | CameraView.FLASH_OFF,
66 | CameraView.FLASH_ON,
67 | };
68 |
69 | private static final int[] FLASH_ICONS = {
70 | R.drawable.ic_flash_auto,
71 | R.drawable.ic_flash_off,
72 | R.drawable.ic_flash_on,
73 | };
74 |
75 | private static final int[] FLASH_TITLES = {
76 | R.string.flash_auto,
77 | R.string.flash_off,
78 | R.string.flash_on,
79 | };
80 |
81 | private int mCurrentFlash;
82 |
83 | private CameraView mCameraView;
84 |
85 | private Handler mBackgroundHandler;
86 |
87 | private View.OnClickListener mOnClickListener = new View.OnClickListener() {
88 | @Override
89 | public void onClick(View v) {
90 | switch (v.getId()) {
91 | case R.id.take_picture:
92 | if (mCameraView != null) {
93 | mCameraView.takePicture();
94 | }
95 | break;
96 | }
97 | }
98 | };
99 |
100 | @Override
101 | protected void onCreate(Bundle savedInstanceState) {
102 | super.onCreate(savedInstanceState);
103 | setContentView(R.layout.activity_main);
104 | mCameraView = (CameraView) findViewById(R.id.camera);
105 | if (mCameraView != null) {
106 | mCameraView.addCallback(mCallback);
107 | }
108 | FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.take_picture);
109 | if (fab != null) {
110 | fab.setOnClickListener(mOnClickListener);
111 | }
112 | Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
113 | setSupportActionBar(toolbar);
114 | ActionBar actionBar = getSupportActionBar();
115 | if (actionBar != null) {
116 | actionBar.setDisplayShowTitleEnabled(false);
117 | }
118 | }
119 |
120 | @Override
121 | protected void onResume() {
122 | super.onResume();
123 | if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
124 | try {
125 | mCameraView.start();
126 | } catch (Exception e) {
127 | Log.e(TAG, "start camera fail", e);
128 | }
129 | } else if (ActivityCompat.shouldShowRequestPermissionRationale(this, Manifest.permission.CAMERA)) {
130 | ConfirmationDialogFragment.newInstance(R.string.camera_permission_confirmation,
131 | new String[]{Manifest.permission.CAMERA}, REQUEST_CAMERA_PERMISSION, R.string.camera_permission_not_granted)
132 | .show(getSupportFragmentManager(), FRAGMENT_PERMISSION);
133 | } else {
134 | ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA}, REQUEST_CAMERA_PERMISSION);
135 | }
136 | }
137 |
138 | @Override
139 | protected void onPause() {
140 | try {
141 | mCameraView.stop();
142 | } catch (Exception e) {
143 | Log.e(TAG, "stop camera fail", e);
144 | }
145 |
146 | super.onPause();
147 | }
148 |
149 | @Override
150 | protected void onDestroy() {
151 | super.onDestroy();
152 | if (mBackgroundHandler != null) {
153 | if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
154 | mBackgroundHandler.getLooper().quitSafely();
155 | } else {
156 | mBackgroundHandler.getLooper().quit();
157 | }
158 | mBackgroundHandler = null;
159 | }
160 | }
161 |
162 | @Override
163 | public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
164 | @NonNull int[] grantResults) {
165 | switch (requestCode) {
166 | case REQUEST_CAMERA_PERMISSION:
167 | if (permissions.length != 1 || grantResults.length != 1) {
168 | throw new RuntimeException("Error on requesting camera permission.");
169 | }
170 | if (grantResults[0] != PackageManager.PERMISSION_GRANTED) {
171 | Toast.makeText(this, R.string.camera_permission_not_granted, Toast.LENGTH_SHORT).show();
172 | }
173 | // No need to start camera here; it is handled by onResume
174 | break;
175 | }
176 | }
177 |
178 | @Override
179 | public boolean onCreateOptionsMenu(Menu menu) {
180 | getMenuInflater().inflate(R.menu.main, menu);
181 | return true;
182 | }
183 |
184 | @Override
185 | public boolean onOptionsItemSelected(MenuItem item) {
186 | switch (item.getItemId()) {
187 | case R.id.aspect_ratio:
188 | FragmentManager fragmentManager = getSupportFragmentManager();
189 | if (mCameraView != null && fragmentManager.findFragmentByTag(FRAGMENT_PERMISSION) == null) {
190 | final Set ratios = mCameraView.getSupportedAspectRatios();
191 | final AspectRatio currentRatio = mCameraView.getAspectRatio();
192 | AspectRatioFragment.newInstance(ratios, currentRatio).show(fragmentManager,
193 | FRAGMENT_PERMISSION);
194 | }
195 | return true;
196 | case R.id.switch_flash:
197 | if (mCameraView != null) {
198 | mCurrentFlash = (mCurrentFlash + 1) % FLASH_OPTIONS.length;
199 | item.setTitle(FLASH_TITLES[mCurrentFlash]);
200 | item.setIcon(FLASH_ICONS[mCurrentFlash]);
201 | mCameraView.setFlash(FLASH_OPTIONS[mCurrentFlash]);
202 | }
203 | return true;
204 | case R.id.switch_camera:
205 | if (mCameraView != null) {
206 | int facing = mCameraView.getFacing();
207 | mCameraView.setFacing(facing == CameraView.FACING_FRONT ? CameraView.FACING_BACK : CameraView.FACING_FRONT);
208 | }
209 | return true;
210 | }
211 | return super.onOptionsItemSelected(item);
212 | }
213 |
214 | @Override
215 | public void onAspectRatioSelected(@NonNull AspectRatio ratio) {
216 | if (mCameraView != null) {
217 | Toast.makeText(this, ratio.toString(), Toast.LENGTH_SHORT).show();
218 | mCameraView.setAspectRatio(ratio);
219 | }
220 | }
221 |
222 | private Handler getBackgroundHandler() {
223 | if (mBackgroundHandler == null) {
224 | HandlerThread thread = new HandlerThread("background");
225 | thread.start();
226 | mBackgroundHandler = new Handler(thread.getLooper());
227 | }
228 | return mBackgroundHandler;
229 | }
230 |
231 | private CameraView.Callback mCallback = new CameraView.Callback() {
232 |
233 | @Override
234 | public void onCameraError(CameraView cameraView) {
235 | Log.e(TAG, "onCameraError");
236 | }
237 |
238 | @Override
239 | public void onCameraOpened(CameraView cameraView) {
240 | Log.d(TAG, "onCameraOpened");
241 | }
242 |
243 | @Override
244 | public void onCameraClosed(CameraView cameraView) {
245 | Log.d(TAG, "onCameraClosed");
246 | }
247 |
248 | @Override
249 | public void onPictureTaken(CameraView cameraView, final byte[] data) {
250 | Log.d(TAG, "onPictureTaken " + data.length);
251 | Toast.makeText(cameraView.getContext(), R.string.picture_taken, Toast.LENGTH_SHORT).show();
252 | getBackgroundHandler().post(new Runnable() {
253 | @Override
254 | public void run() {
255 | long time = System.currentTimeMillis();
256 | File file = new File(getExternalFilesDir(Environment.DIRECTORY_PICTURES), String.format("picture_%s.jpg", String.valueOf(time)));
257 | OutputStream os = null;
258 | try {
259 | os = new FileOutputStream(file);
260 | os.write(data);
261 | os.close();
262 |
263 | PictureDialogFragment.newInstance(file.getAbsolutePath()).show(getSupportFragmentManager(), FRAGMENT_PICTURE);
264 | } catch (IOException e) {
265 | Log.w(TAG, "Cannot write to " + file, e);
266 | } finally {
267 | if (os != null) {
268 | try {
269 | os.close();
270 | } catch (IOException e) {
271 | // Ignore
272 | }
273 | }
274 | }
275 | }
276 | });
277 | }
278 |
279 | };
280 |
281 | }
282 |
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
1 |
2 | Apache License
3 | Version 2.0, January 2004
4 | http://www.apache.org/licenses/
5 |
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