├── .gitignore ├── LICENSE ├── README.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── com │ │ └── afei │ │ └── camerademo │ │ ├── ImageUtils.java │ │ ├── MainActivity.java │ │ ├── MyApp.java │ │ ├── camera │ │ ├── Camera2Proxy.java │ │ └── CameraProxy.java │ │ ├── glsurfaceview │ │ ├── Camera2GLSurfaceView.java │ │ ├── CameraDrawer.java │ │ ├── CameraGLSurfaceView.java │ │ ├── GLSurfaceCamera2Activity.java │ │ ├── GLSurfaceCameraActivity.java │ │ └── OpenGLUtils.java │ │ ├── surfaceview │ │ ├── Camera2SurfaceView.java │ │ ├── CameraSurfaceView.java │ │ ├── SurfaceCamera2Activity.java │ │ └── SurfaceCameraActivity.java │ │ └── textureview │ │ ├── Camera2TextureView.java │ │ ├── CameraTextureView.java │ │ ├── TextureCamera2Activity.java │ │ └── TextureCameraActivity.java │ └── res │ ├── drawable │ └── click_button_selector.xml │ ├── layout │ ├── activity_glsurface_camera.xml │ ├── activity_glsurface_camera2.xml │ ├── activity_main.xml │ ├── activity_surface_camera.xml │ ├── activity_surface_camera2.xml │ ├── activity_texture_camera.xml │ └── activity_texture_camera2.xml │ ├── mipmap-xxhdpi │ ├── ic_camera_switch.png │ ├── ic_close.png │ ├── ic_launcher.png │ ├── ic_launcher_round.png │ ├── icon_button_click.png │ └── icon_button_click_down.png │ ├── mipmap-xxxhdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ └── values │ ├── colors.xml │ ├── strings.xml │ └── styles.xml ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.ap_ 4 | 5 | # Files for the ART/Dalvik VM 6 | *.dex 7 | 8 | # Java class files 9 | *.class 10 | 11 | # Generated files 12 | bin/ 13 | gen/ 14 | out/ 15 | 16 | # Gradle files 17 | .gradle/ 18 | build/ 19 | 20 | # Local configuration file (sdk path, etc) 21 | local.properties 22 | 23 | # Proguard folder generated by Eclipse 24 | proguard/ 25 | 26 | # Log Files 27 | *.log 28 | 29 | # Android Studio Navigation editor temp files 30 | .navigation/ 31 | 32 | # Android Studio captures folder 33 | captures/ 34 | 35 | # IntelliJ 36 | *.iml 37 | .idea/ 38 | 39 | # Keystore files 40 | # Uncomment the following line if you do not want to check your keystore files in. 41 | #*.jks 42 | 43 | # External native build folder generated in Android Studio 2.2 and later 44 | .externalNativeBuild 45 | 46 | # Google Services (e.g. APIs or Firebase) 47 | google-services.json 48 | 49 | # Freeline 50 | freeline.py 51 | freeline/ 52 | freeline_project_description.json 53 | 54 | # fastlane 55 | fastlane/report.xml 56 | fastlane/Preview.html 57 | fastlane/screenshots 58 | fastlane/test_output 59 | fastlane/readme.md 60 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # CameraDemo 2 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 34 5 | defaultConfig { 6 | applicationId "com.afei.camerademo" 7 | minSdkVersion 26 8 | targetSdkVersion 34 9 | versionCode 1 10 | versionName "1.0" 11 | } 12 | buildTypes { 13 | release { 14 | minifyEnabled false 15 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 16 | } 17 | } 18 | 19 | compileOptions { 20 | sourceCompatibility JavaVersion.VERSION_1_8 21 | targetCompatibility JavaVersion.VERSION_1_8 22 | } 23 | } 24 | 25 | dependencies { 26 | implementation fileTree(dir: 'libs', include: ['*.jar']) 27 | implementation 'androidx.appcompat:appcompat:1.6.0' 28 | } 29 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 19 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 31 | 34 | 37 | 40 | 43 | 46 | 47 | 48 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/ImageUtils.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo; 2 | 3 | import android.content.ContentResolver; 4 | import android.content.ContentValues; 5 | import android.content.Context; 6 | import android.database.Cursor; 7 | import android.graphics.Bitmap; 8 | import android.graphics.Matrix; 9 | import android.os.Environment; 10 | import android.provider.MediaStore; 11 | import android.util.Log; 12 | 13 | import java.io.File; 14 | import java.io.FileOutputStream; 15 | import java.io.IOException; 16 | import java.text.SimpleDateFormat; 17 | import java.util.Date; 18 | 19 | public class ImageUtils { 20 | 21 | private static final String TAG = "ImageUtils"; 22 | private static Context sContext = MyApp.getInstance(); 23 | 24 | private static final String GALLERY_PATH = Environment.getExternalStoragePublicDirectory(Environment 25 | .DIRECTORY_DCIM) + File.separator + "Camera"; 26 | 27 | private static final String[] STORE_IMAGES = { 28 | MediaStore.Images.Thumbnails._ID, 29 | }; 30 | private static final SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("yyyyMMdd_HHmmss"); 31 | 32 | public static Bitmap rotateBitmap(Bitmap source, int degree, boolean flipHorizontal, boolean recycle) { 33 | if (degree == 0 && !flipHorizontal) { 34 | return source; 35 | } 36 | Matrix matrix = new Matrix(); 37 | matrix.postRotate(degree); 38 | if (flipHorizontal) { 39 | matrix.postScale(-1, 1); 40 | } 41 | Log.d(TAG, "source width: " + source.getWidth() + ", height: " + source.getHeight()); 42 | Log.d(TAG, "rotateBitmap: degree: " + degree); 43 | Bitmap rotateBitmap = Bitmap.createBitmap(source, 0, 0, source.getWidth(), source.getHeight(), matrix, false); 44 | Log.d(TAG, "rotate width: " + rotateBitmap.getWidth() + ", height: " + rotateBitmap.getHeight()); 45 | if (recycle) { 46 | source.recycle(); 47 | } 48 | return rotateBitmap; 49 | } 50 | 51 | public static void saveImage(byte[] jpeg) { 52 | String fileName = DATE_FORMAT.format(new Date(System.currentTimeMillis())) + ".jpg"; 53 | File outFile = new File(GALLERY_PATH, fileName); 54 | Log.d(TAG, "saveImage. filepath: " + outFile.getAbsolutePath()); 55 | FileOutputStream os = null; 56 | try { 57 | os = new FileOutputStream(outFile); 58 | os.write(jpeg); 59 | os.flush(); 60 | os.close(); 61 | insertToDB(outFile.getAbsolutePath()); 62 | } catch (IOException e) { 63 | e.printStackTrace(); 64 | } finally { 65 | if (os != null) { 66 | try { 67 | os.close(); 68 | } catch (IOException e) { 69 | e.printStackTrace(); 70 | } 71 | } 72 | } 73 | } 74 | 75 | public static void saveBitmap(Bitmap bitmap) { 76 | String fileName = DATE_FORMAT.format(new Date(System.currentTimeMillis())) + ".jpg"; 77 | File outFile = new File(GALLERY_PATH, fileName); 78 | Log.d(TAG, "saveImage. filepath: " + outFile.getAbsolutePath()); 79 | FileOutputStream os = null; 80 | try { 81 | os = new FileOutputStream(outFile); 82 | boolean success = bitmap.compress(Bitmap.CompressFormat.JPEG, 100, os); 83 | Log.d(TAG, "saveBitmap: " + success); 84 | if (success) { 85 | insertToDB(outFile.getAbsolutePath()); 86 | } 87 | } catch (IOException e) { 88 | e.printStackTrace(); 89 | } finally { 90 | if (os != null) { 91 | try { 92 | os.close(); 93 | } catch (IOException e) { 94 | e.printStackTrace(); 95 | } 96 | } 97 | } 98 | } 99 | 100 | public static void insertToDB(String picturePath) { 101 | ContentValues values = new ContentValues(); 102 | ContentResolver resolver = sContext.getContentResolver(); 103 | values.put(MediaStore.Images.ImageColumns.DATA, picturePath); 104 | values.put(MediaStore.Images.ImageColumns.TITLE, picturePath.substring(picturePath.lastIndexOf("/") + 1)); 105 | values.put(MediaStore.Images.ImageColumns.DATE_TAKEN, System.currentTimeMillis()); 106 | values.put(MediaStore.Images.ImageColumns.MIME_TYPE, "image/jpeg"); 107 | resolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, values); 108 | } 109 | 110 | public static Bitmap getLatestThumbBitmap() { 111 | Bitmap bitmap = null; 112 | // 按照时间顺序降序查询 113 | Cursor cursor = MediaStore.Images.Media.query(sContext.getContentResolver(), MediaStore.Images.Media 114 | .EXTERNAL_CONTENT_URI, STORE_IMAGES, null, null, MediaStore.Files.FileColumns.DATE_MODIFIED + " DESC"); 115 | boolean first = cursor.moveToFirst(); 116 | if (first) { 117 | long id = cursor.getLong(0); 118 | bitmap = MediaStore.Images.Thumbnails.getThumbnail(sContext.getContentResolver(), id, MediaStore.Images 119 | .Thumbnails.MICRO_KIND, null); 120 | Log.d(TAG, "bitmap width: " + bitmap.getWidth()); 121 | Log.d(TAG, "bitmap height: " + bitmap.getHeight()); 122 | } 123 | cursor.close(); 124 | return bitmap; 125 | } 126 | } 127 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo; 2 | 3 | import static android.content.pm.PackageManager.PERMISSION_GRANTED; 4 | 5 | import android.Manifest; 6 | import android.content.Intent; 7 | import android.os.Bundle; 8 | import android.view.View; 9 | import android.widget.Toast; 10 | 11 | import androidx.annotation.NonNull; 12 | import androidx.appcompat.app.AppCompatActivity; 13 | import androidx.core.app.ActivityCompat; 14 | import androidx.core.content.ContextCompat; 15 | 16 | import com.afei.camerademo.glsurfaceview.GLSurfaceCamera2Activity; 17 | import com.afei.camerademo.glsurfaceview.GLSurfaceCameraActivity; 18 | import com.afei.camerademo.surfaceview.SurfaceCamera2Activity; 19 | import com.afei.camerademo.surfaceview.SurfaceCameraActivity; 20 | import com.afei.camerademo.textureview.TextureCamera2Activity; 21 | import com.afei.camerademo.textureview.TextureCameraActivity; 22 | 23 | public class MainActivity extends AppCompatActivity { 24 | 25 | private static final int REQUEST_PERMISSION = 1; 26 | private final String[] PERMISSIONS = new String[] { 27 | Manifest.permission.WRITE_EXTERNAL_STORAGE, 28 | Manifest.permission.CAMERA 29 | }; 30 | 31 | @Override 32 | protected void onCreate(Bundle savedInstanceState) { 33 | super.onCreate(savedInstanceState); 34 | setContentView(R.layout.activity_main); 35 | checkPermission(); 36 | } 37 | 38 | public void startCameraActivity(View view) { 39 | Intent intent = null; 40 | switch (view.getId()) { 41 | case R.id.camera_btn1: 42 | intent = new Intent(this, SurfaceCameraActivity.class); 43 | break; 44 | case R.id.camera_btn2: 45 | intent = new Intent(this, TextureCameraActivity.class); 46 | break; 47 | case R.id.camera_btn3: 48 | intent = new Intent(this, GLSurfaceCameraActivity.class); 49 | break; 50 | case R.id.camera_btn4: 51 | intent = new Intent(this, SurfaceCamera2Activity.class); 52 | break; 53 | case R.id.camera_btn5: 54 | intent = new Intent(this, TextureCamera2Activity.class); 55 | break; 56 | case R.id.camera_btn6: 57 | intent = new Intent(this, GLSurfaceCamera2Activity.class); 58 | break; 59 | } 60 | startActivity(intent); 61 | } 62 | 63 | private boolean checkPermission() { 64 | for (int i = 0; i < PERMISSIONS.length; i++) { 65 | int state = ContextCompat.checkSelfPermission(this, PERMISSIONS[i]); 66 | if (state != PERMISSION_GRANTED) { 67 | ActivityCompat.requestPermissions(this, PERMISSIONS, REQUEST_PERMISSION); 68 | return false; 69 | } 70 | } 71 | return true; 72 | } 73 | 74 | @Override 75 | public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { 76 | super.onRequestPermissionsResult(requestCode, permissions, grantResults); 77 | if (requestCode == REQUEST_PERMISSION) { 78 | for (int i = 0; i < permissions.length; i++) { 79 | if (grantResults[i] != PERMISSION_GRANTED) { 80 | Toast.makeText(this, "请在设置中相关权限", Toast.LENGTH_SHORT).show(); 81 | } 82 | } 83 | } 84 | } 85 | 86 | } 87 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/MyApp.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo; 2 | 3 | import android.app.Application; 4 | 5 | public class MyApp extends Application { 6 | 7 | private static MyApp app; 8 | 9 | @Override 10 | public void onCreate() { 11 | super.onCreate(); 12 | app = this; 13 | } 14 | 15 | public static MyApp getInstance() { 16 | return app; 17 | } 18 | } 19 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/camera/Camera2Proxy.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.camera; 2 | 3 | import android.annotation.SuppressLint; 4 | import android.annotation.TargetApi; 5 | import android.app.Activity; 6 | import android.content.Context; 7 | import android.graphics.ImageFormat; 8 | import android.graphics.Matrix; 9 | import android.graphics.Rect; 10 | import android.graphics.RectF; 11 | import android.graphics.SurfaceTexture; 12 | import android.hardware.camera2.CameraAccessException; 13 | import android.hardware.camera2.CameraCaptureSession; 14 | import android.hardware.camera2.CameraCharacteristics; 15 | import android.hardware.camera2.CameraDevice; 16 | import android.hardware.camera2.CameraManager; 17 | import android.hardware.camera2.CameraMetadata; 18 | import android.hardware.camera2.CaptureRequest; 19 | import android.hardware.camera2.CaptureResult; 20 | import android.hardware.camera2.TotalCaptureResult; 21 | import android.hardware.camera2.params.MeteringRectangle; 22 | import android.hardware.camera2.params.StreamConfigurationMap; 23 | import android.media.ImageReader; 24 | import android.os.Build; 25 | import android.os.Handler; 26 | import android.os.HandlerThread; 27 | import android.util.Log; 28 | import android.util.Size; 29 | import android.view.OrientationEventListener; 30 | import android.view.Surface; 31 | import android.view.SurfaceHolder; 32 | 33 | import androidx.annotation.NonNull; 34 | 35 | import java.util.ArrayList; 36 | import java.util.Arrays; 37 | import java.util.Collections; 38 | import java.util.Comparator; 39 | import java.util.List; 40 | 41 | public class Camera2Proxy { 42 | 43 | private static final String TAG = "Camera2Proxy"; 44 | 45 | private Activity mActivity; 46 | 47 | private int mCameraId = CameraCharacteristics.LENS_FACING_FRONT; // 要打开的摄像头ID 48 | private CameraCharacteristics mCameraCharacteristics; // 相机属性 49 | private CameraManager mCameraManager; // 相机管理者 50 | private CameraDevice mCameraDevice; // 相机对象 51 | private CameraCaptureSession mCaptureSession; 52 | private CaptureRequest.Builder mPreviewRequestBuilder; // 相机预览请求的构造器 53 | private CaptureRequest mPreviewRequest; 54 | private Handler mBackgroundHandler; 55 | private HandlerThread mBackgroundThread; 56 | private ImageReader mPictureImageReader; 57 | private Surface mPreviewSurface; 58 | private OrientationEventListener mOrientationEventListener; 59 | 60 | private Size mPreviewSize; // 预览大小 61 | private Size mPictureSize; // 拍照大小 62 | private int mDisplayRotation = 0; // 原始Sensor画面顺时针旋转该角度后，画面朝上 63 | private int mDeviceOrientation = 0; // 设备方向，由相机传感器获取 64 | 65 | /* 缩放相关 */ 66 | private final int MAX_ZOOM = 200; // 放大的最大值，用于计算每次放大/缩小操作改变的大小 67 | private int mZoom = 0; // 0~mMaxZoom之间变化 68 | private float mStepWidth; // 每次改变的宽度大小 69 | private float mStepHeight; // 每次改变的高度大小 70 | 71 | /** 72 | * 打开摄像头的回调 73 | */ 74 | private CameraDevice.StateCallback mStateCallback = new CameraDevice.StateCallback() { 75 | @Override 76 | public void onOpened(@NonNull CameraDevice camera) { 77 | Log.d(TAG, "onOpened"); 78 | mCameraDevice = camera; 79 | initPreviewRequest(); 80 | createCommonSession(); 81 | } 82 | 83 | @Override 84 | public void onDisconnected(@NonNull CameraDevice camera) { 85 | Log.d(TAG, "onDisconnected"); 86 | releaseCamera(); 87 | } 88 | 89 | @Override 90 | public void onError(@NonNull CameraDevice camera, int error) { 91 | Log.e(TAG, "Camera Open failed, error: " + error); 92 | releaseCamera(); 93 | } 94 | }; 95 | 96 | @TargetApi(Build.VERSION_CODES.M) 97 | public Camera2Proxy(Activity activity) { 98 | mActivity = activity; 99 | mOrientationEventListener = new OrientationEventListener(mActivity) { 100 | @Override 101 | public void onOrientationChanged(int orientation) { 102 | mDeviceOrientation = orientation; 103 | } 104 | }; 105 | } 106 | 107 | public void setUpCameraOutputs(int width, int height) { 108 | mCameraManager = (CameraManager) mActivity.getSystemService(Context.CAMERA_SERVICE); 109 | try { 110 | mCameraCharacteristics = mCameraManager.getCameraCharacteristics(Integer.toString(mCameraId)); 111 | StreamConfigurationMap map = mCameraCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP); 112 | Size[] supportPictureSizes = map.getOutputSizes(ImageFormat.JPEG); 113 | Size pictureSize = Collections.max(Arrays.asList(supportPictureSizes), new CompareSizesByArea()); 114 | float aspectRatio = pictureSize.getHeight() * 1.0f / pictureSize.getWidth(); 115 | Size[] supportPreviewSizes = map.getOutputSizes(SurfaceTexture.class); 116 | // 一般相机页面都是固定竖屏，宽是短边，所以根据view的宽度来计算需要的预览大小 117 | Size previewSize = chooseOptimalSize(supportPreviewSizes, width, aspectRatio); 118 | Log.d(TAG, "pictureSize: " + pictureSize); 119 | Log.d(TAG, "previewSize: " + previewSize); 120 | mPictureSize = pictureSize; 121 | mPreviewSize = previewSize; 122 | } catch (CameraAccessException e) { 123 | e.printStackTrace(); 124 | } 125 | } 126 | 127 | @SuppressLint("MissingPermission") 128 | public void openCamera() { 129 | Log.v(TAG, "openCamera"); 130 | startBackgroundThread(); // 对应 releaseCamera() 方法中的 stopBackgroundThread() 131 | mOrientationEventListener.enable(); 132 | try { 133 | mCameraCharacteristics = mCameraManager.getCameraCharacteristics(Integer.toString(mCameraId)); 134 | // 每次切换摄像头计算一次就行，结果缓存到成员变量中 135 | initDisplayRotation(); 136 | initZoomParameter(); 137 | // 打开摄像头 138 | mCameraManager.openCamera(Integer.toString(mCameraId), mStateCallback, mBackgroundHandler); 139 | } catch (CameraAccessException e) { 140 | e.printStackTrace(); 141 | } 142 | } 143 | 144 | private void initDisplayRotation() { 145 | int displayRotation = mActivity.getWindowManager().getDefaultDisplay().getRotation(); 146 | switch (displayRotation) { 147 | case Surface.ROTATION_0: 148 | displayRotation = 90; 149 | break; 150 | case Surface.ROTATION_90: 151 | displayRotation = 0; 152 | break; 153 | case Surface.ROTATION_180: 154 | displayRotation = 270; 155 | break; 156 | case Surface.ROTATION_270: 157 | displayRotation = 180; 158 | break; 159 | } 160 | int sensorOrientation = mCameraCharacteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); 161 | mDisplayRotation = (displayRotation + sensorOrientation + 270) % 360; 162 | Log.d(TAG, "mDisplayRotation: " + mDisplayRotation); 163 | } 164 | 165 | private void initZoomParameter() { 166 | Rect rect = mCameraCharacteristics.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE); 167 | Log.d(TAG, "sensor_info_active_array_size: " + rect); 168 | // max_digital_zoom 表示 active_rect 除以 crop_rect 的最大值 169 | float max_digital_zoom = mCameraCharacteristics.get(CameraCharacteristics.SCALER_AVAILABLE_MAX_DIGITAL_ZOOM); 170 | Log.d(TAG, "max_digital_zoom: " + max_digital_zoom); 171 | // crop_rect的最小宽高 172 | float minWidth = rect.width() / max_digital_zoom; 173 | float minHeight = rect.height() / max_digital_zoom; 174 | // 因为缩放时两边都要变化，所以要除以2 175 | mStepWidth = (rect.width() - minWidth) / MAX_ZOOM / 2; 176 | mStepHeight = (rect.height() - minHeight) / MAX_ZOOM / 2; 177 | } 178 | 179 | public void releaseCamera() { 180 | Log.v(TAG, "releaseCamera"); 181 | if (null != mCaptureSession) { 182 | mCaptureSession.close(); 183 | mCaptureSession = null; 184 | } 185 | if (mCameraDevice != null) { 186 | mCameraDevice.close(); 187 | mCameraDevice = null; 188 | } 189 | if (mPictureImageReader != null) { 190 | mPictureImageReader.close(); 191 | mPictureImageReader = null; 192 | } 193 | mOrientationEventListener.disable(); 194 | stopBackgroundThread(); // 对应 openCamera() 方法中的 startBackgroundThread() 195 | } 196 | 197 | public void setPreviewSurface(SurfaceHolder holder) { 198 | mPreviewSurface = holder.getSurface(); 199 | } 200 | 201 | public void setPreviewSurface(SurfaceTexture surfaceTexture) { 202 | surfaceTexture.setDefaultBufferSize(mPreviewSize.getWidth(), mPreviewSize.getHeight()); 203 | mPreviewSurface = new Surface(surfaceTexture); 204 | } 205 | 206 | private void createCommonSession() { 207 | List outputs = new ArrayList<>(); 208 | // preview output 209 | if (mPreviewSurface != null) { 210 | Log.d(TAG, "createCommonSession add target mPreviewSurface"); 211 | outputs.add(mPreviewSurface); 212 | } 213 | // picture output 214 | Size pictureSize = mPictureSize; 215 | if (pictureSize != null) { 216 | Log.d(TAG, "createCommonSession add target mPictureImageReader"); 217 | mPictureImageReader = ImageReader.newInstance(pictureSize.getWidth(), pictureSize.getHeight(), ImageFormat.JPEG, 1); 218 | outputs.add(mPictureImageReader.getSurface()); 219 | } 220 | try { 221 | // 一个session中，所有CaptureRequest能够添加的target，必须是outputs的子集，所以在创建session的时候需要都添加进来 222 | mCameraDevice.createCaptureSession(outputs, new CameraCaptureSession.StateCallback() { 223 | 224 | @Override 225 | public void onConfigured(@NonNull CameraCaptureSession session) { 226 | mCaptureSession = session; 227 | startPreview(); 228 | } 229 | 230 | @Override 231 | public void onConfigureFailed(@NonNull CameraCaptureSession session) { 232 | Log.e(TAG, "ConfigureFailed. session: " + session); 233 | } 234 | }, mBackgroundHandler); // handle 传入 null 表示使用当前线程的 Looper 235 | } catch (CameraAccessException e) { 236 | e.printStackTrace(); 237 | } 238 | } 239 | 240 | private void initPreviewRequest() { 241 | if (mPreviewSurface == null) { 242 | Log.e(TAG, "initPreviewRequest failed, mPreviewSurface is null"); 243 | return; 244 | } 245 | try { 246 | mPreviewRequestBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW); 247 | // 设置预览输出的 Surface 248 | mPreviewRequestBuilder.addTarget(mPreviewSurface); 249 | // 设置连续自动对焦 250 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE); 251 | // 设置自动曝光 252 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH); 253 | // 设置自动白平衡 254 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AWB_MODE, CaptureRequest.CONTROL_AWB_MODE_AUTO); 255 | } catch (CameraAccessException e) { 256 | e.printStackTrace(); 257 | } 258 | } 259 | 260 | public void startPreview() { 261 | Log.v(TAG, "startPreview"); 262 | if (mCaptureSession == null || mPreviewRequestBuilder == null) { 263 | Log.w(TAG, "startPreview: mCaptureSession or mPreviewRequestBuilder is null"); 264 | return; 265 | } 266 | try { 267 | // 开始预览，即一直发送预览的请求 268 | CaptureRequest captureRequest = mPreviewRequestBuilder.build(); 269 | mCaptureSession.setRepeatingRequest(captureRequest, null, mBackgroundHandler); 270 | } catch (CameraAccessException e) { 271 | e.printStackTrace(); 272 | } 273 | } 274 | 275 | public void stopPreview() { 276 | Log.v(TAG, "stopPreview"); 277 | if (mCaptureSession == null) { 278 | Log.w(TAG, "stopPreview: mCaptureSession is null"); 279 | return; 280 | } 281 | try { 282 | mCaptureSession.stopRepeating(); 283 | } catch (CameraAccessException e) { 284 | e.printStackTrace(); 285 | } 286 | } 287 | 288 | public void captureStillPicture(ImageReader.OnImageAvailableListener onImageAvailableListener) { 289 | if (mPictureImageReader == null) { 290 | Log.w(TAG, "captureStillPicture failed! mPictureImageReader is null"); 291 | return; 292 | } 293 | mPictureImageReader.setOnImageAvailableListener(onImageAvailableListener, mBackgroundHandler); 294 | try { 295 | // 创建一个用于拍照的Request 296 | CaptureRequest.Builder captureBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_STILL_CAPTURE); 297 | captureBuilder.addTarget(mPictureImageReader.getSurface()); 298 | captureBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE); 299 | captureBuilder.set(CaptureRequest.JPEG_ORIENTATION, getJpegOrientation(mDeviceOrientation)); 300 | // 预览如果有放大，拍照的时候也应该保存相同的缩放 301 | Rect zoomRect = mPreviewRequestBuilder.get(CaptureRequest.SCALER_CROP_REGION); 302 | if (zoomRect != null) { 303 | captureBuilder.set(CaptureRequest.SCALER_CROP_REGION, zoomRect); 304 | } 305 | stopPreview(); 306 | mCaptureSession.abortCaptures(); 307 | final long time = System.currentTimeMillis(); 308 | mCaptureSession.capture(captureBuilder.build(), new CameraCaptureSession.CaptureCallback() { 309 | @Override 310 | public void onCaptureCompleted(@NonNull CameraCaptureSession session, 311 | @NonNull CaptureRequest request, 312 | @NonNull TotalCaptureResult result) { 313 | Log.w(TAG, "onCaptureCompleted, time: " + (System.currentTimeMillis() - time)); 314 | try { 315 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_TRIGGER, CameraMetadata.CONTROL_AF_TRIGGER_CANCEL); 316 | mCaptureSession.capture(mPreviewRequestBuilder.build(), null, mBackgroundHandler); 317 | } catch (CameraAccessException e) { 318 | e.printStackTrace(); 319 | } 320 | startPreview(); 321 | } 322 | }, mBackgroundHandler); 323 | } catch (CameraAccessException e) { 324 | e.printStackTrace(); 325 | } 326 | } 327 | 328 | private int getJpegOrientation(int deviceOrientation) { 329 | if (deviceOrientation == android.view.OrientationEventListener.ORIENTATION_UNKNOWN) return 0; 330 | int sensorOrientation = mCameraCharacteristics.get(CameraCharacteristics.SENSOR_ORIENTATION); 331 | // Round device orientation to a multiple of 90 332 | deviceOrientation = (deviceOrientation + 45) / 90 * 90; 333 | // Reverse device orientation for front-facing cameras 334 | boolean facingFront = mCameraCharacteristics.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics 335 | .LENS_FACING_FRONT; 336 | if (facingFront) deviceOrientation = -deviceOrientation; 337 | // Calculate desired JPEG orientation relative to camera orientation to make 338 | // the image upright relative to the device orientation 339 | int jpegOrientation = (sensorOrientation + deviceOrientation + 360) % 360; 340 | Log.d(TAG, "jpegOrientation: " + jpegOrientation); 341 | return jpegOrientation; 342 | } 343 | 344 | public boolean isFrontCamera() { 345 | return mCameraId == CameraCharacteristics.LENS_FACING_BACK; 346 | } 347 | 348 | public Size getPreviewSize() { 349 | return mPreviewSize; 350 | } 351 | 352 | public void setPreviewSize(Size previewSize) { 353 | mPreviewSize = previewSize; 354 | } 355 | 356 | public Size getPictureSize() { 357 | return mPictureSize; 358 | } 359 | 360 | public void setPictureSize(Size pictureSize) { 361 | mPictureSize = pictureSize; 362 | } 363 | 364 | public void switchCamera() { 365 | mCameraId ^= 1; 366 | Log.d(TAG, "switchCamera: mCameraId: " + mCameraId); 367 | releaseCamera(); 368 | openCamera(); 369 | } 370 | 371 | public void handleZoom(boolean isZoomIn) { 372 | if (mCameraDevice == null || mCameraCharacteristics == null || mPreviewRequestBuilder == null) { 373 | return; 374 | } 375 | if (isZoomIn && mZoom < MAX_ZOOM) { // 放大 376 | mZoom++; 377 | } else if (mZoom > 0) { // 缩小 378 | mZoom--; 379 | } 380 | Log.v(TAG, "handleZoom: mZoom: " + mZoom); 381 | Rect rect = mCameraCharacteristics.get(CameraCharacteristics.SENSOR_INFO_ACTIVE_ARRAY_SIZE); 382 | int cropW = (int) (mStepWidth * mZoom); 383 | int cropH = (int) (mStepHeight * mZoom); 384 | Rect zoomRect = new Rect(rect.left + cropW, rect.top + cropH, rect.right - cropW, rect.bottom - cropH); 385 | Log.d(TAG, "zoomRect: " + zoomRect); 386 | mPreviewRequestBuilder.set(CaptureRequest.SCALER_CROP_REGION, zoomRect); 387 | startPreview(); // 需要重新 start preview 才能生效 388 | } 389 | 390 | public void triggerFocusAtPoint(float x, float y, int width, int height) { 391 | Log.d(TAG, "triggerFocusAtPoint (" + x + ", " + y + ")"); 392 | Rect cropRegion = mPreviewRequestBuilder.get(CaptureRequest.SCALER_CROP_REGION); 393 | MeteringRectangle afRegion = getAFAERegion(x, y, width, height, 1f, cropRegion); 394 | // ae的区域比af的稍大一点，聚焦的效果比较好 395 | MeteringRectangle aeRegion = getAFAERegion(x, y, width, height, 1.5f, cropRegion); 396 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_REGIONS, new MeteringRectangle[]{afRegion}); 397 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_REGIONS, new MeteringRectangle[]{aeRegion}); 398 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_AUTO); 399 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_TRIGGER, CameraMetadata.CONTROL_AF_TRIGGER_START); 400 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_PRECAPTURE_TRIGGER, CameraMetadata.CONTROL_AE_PRECAPTURE_TRIGGER_START); 401 | try { 402 | mCaptureSession.capture(mPreviewRequestBuilder.build(), mAfCaptureCallback, mBackgroundHandler); 403 | } catch (CameraAccessException e) { 404 | e.printStackTrace(); 405 | } 406 | } 407 | 408 | private MeteringRectangle getAFAERegion(float x, float y, int viewWidth, int viewHeight, float multiple, Rect cropRegion) { 409 | Log.v(TAG, "getAFAERegion enter"); 410 | Log.d(TAG, "point: [" + x + ", " + y + "], viewWidth: " + viewWidth + ", viewHeight: " + viewHeight); 411 | Log.d(TAG, "multiple: " + multiple); 412 | // do rotate and mirror 413 | RectF viewRect = new RectF(0, 0, viewWidth, viewHeight); 414 | Matrix matrix1 = new Matrix(); 415 | matrix1.setRotate(mDisplayRotation); 416 | matrix1.postScale(isFrontCamera() ? -1 : 1, 1); 417 | matrix1.invert(matrix1); 418 | matrix1.mapRect(viewRect); 419 | // get scale and translate matrix 420 | Matrix matrix2 = new Matrix(); 421 | RectF cropRect = new RectF(cropRegion); 422 | matrix2.setRectToRect(viewRect, cropRect, Matrix.ScaleToFit.CENTER); 423 | Log.d(TAG, "viewRect: " + viewRect); 424 | Log.d(TAG, "cropRect: " + cropRect); 425 | // get out region 426 | int side = (int) (Math.max(viewWidth, viewHeight) / 8 * multiple); 427 | RectF outRect = new RectF(x - side / 2, y - side / 2, x + side / 2, y + side / 2); 428 | Log.d(TAG, "outRect before: " + outRect); 429 | matrix1.mapRect(outRect); 430 | matrix2.mapRect(outRect); 431 | Log.d(TAG, "outRect after: " + outRect); 432 | // 做一个clamp，测光区域不能超出cropRegion的区域 433 | Rect meteringRect = new Rect((int) outRect.left, (int) outRect.top, (int) outRect.right, (int) outRect.bottom); 434 | meteringRect.left = clamp(meteringRect.left, cropRegion.left, cropRegion.right); 435 | meteringRect.top = clamp(meteringRect.top, cropRegion.top, cropRegion.bottom); 436 | meteringRect.right = clamp(meteringRect.right, cropRegion.left, cropRegion.right); 437 | meteringRect.bottom = clamp(meteringRect.bottom, cropRegion.top, cropRegion.bottom); 438 | Log.d(TAG, "meteringRegion: " + meteringRect); 439 | return new MeteringRectangle(meteringRect, 1000); 440 | } 441 | 442 | private final CameraCaptureSession.CaptureCallback mAfCaptureCallback = new CameraCaptureSession.CaptureCallback() { 443 | 444 | private void process(CaptureResult result) { 445 | Integer state = result.get(CaptureResult.CONTROL_AF_STATE); 446 | Log.d(TAG, "CONTROL_AF_STATE: " + state); 447 | if (state == CaptureResult.CONTROL_AF_STATE_FOCUSED_LOCKED || state == CaptureResult.CONTROL_AF_STATE_NOT_FOCUSED_LOCKED) { 448 | Log.d(TAG, "process: start normal preview"); 449 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_TRIGGER, CameraMetadata.CONTROL_AF_TRIGGER_CANCEL); 450 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_MODE, CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE); 451 | mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AE_MODE, CaptureRequest.FLASH_MODE_OFF); 452 | startPreview(); 453 | } 454 | } 455 | 456 | @Override 457 | public void onCaptureProgressed(@NonNull CameraCaptureSession session, 458 | @NonNull CaptureRequest request, 459 | @NonNull CaptureResult partialResult) { 460 | process(partialResult); 461 | } 462 | 463 | @Override 464 | public void onCaptureCompleted(@NonNull CameraCaptureSession session, 465 | @NonNull CaptureRequest request, 466 | @NonNull TotalCaptureResult result) { 467 | process(result); 468 | } 469 | }; 470 | 471 | 472 | private void startBackgroundThread() { 473 | if (mBackgroundThread == null || mBackgroundHandler == null) { 474 | Log.v(TAG, "startBackgroundThread"); 475 | mBackgroundThread = new HandlerThread("CameraBackground"); 476 | mBackgroundThread.start(); 477 | mBackgroundHandler = new Handler(mBackgroundThread.getLooper()); 478 | } 479 | } 480 | 481 | private void stopBackgroundThread() { 482 | Log.v(TAG, "stopBackgroundThread"); 483 | if (mBackgroundThread != null) { 484 | mBackgroundThread.quitSafely(); 485 | try { 486 | mBackgroundThread.join(); 487 | mBackgroundThread = null; 488 | mBackgroundHandler = null; 489 | } catch (InterruptedException e) { 490 | e.printStackTrace(); 491 | } 492 | } 493 | } 494 | 495 | public Size chooseOptimalSize(Size[] sizes, int dstSize, float aspectRatio) { 496 | if (sizes == null || sizes.length <= 0) { 497 | Log.e(TAG, "chooseOptimalSize failed, input sizes is empty"); 498 | return null; 499 | } 500 | int minDelta = Integer.MAX_VALUE; // 最小的差值，初始值应该设置大点保证之后的计算中会被重置 501 | int index = 0; // 最小的差值对应的索引坐标 502 | for (int i = 0; i < sizes.length; i++) { 503 | Size size = sizes[i]; 504 | // 先判断比例是否相等 505 | if (size.getWidth() * aspectRatio == size.getHeight()) { 506 | int delta = Math.abs(dstSize - size.getHeight()); 507 | if (delta == 0) { 508 | return size; 509 | } 510 | if (minDelta > delta) { 511 | minDelta = delta; 512 | index = i; 513 | } 514 | } 515 | } 516 | return sizes[index]; 517 | } 518 | 519 | private int clamp(int x, int min, int max) { 520 | if (x > max) return max; 521 | if (x < min) return min; 522 | return x; 523 | } 524 | 525 | static class CompareSizesByArea implements Comparator { 526 | 527 | @Override 528 | public int compare(Size lhs, Size rhs) { 529 | // 我们在这里投放，以确保乘法不会溢出 530 | return Long.signum((long) lhs.getWidth() * lhs.getHeight() - 531 | (long) rhs.getWidth() * rhs.getHeight()); 532 | } 533 | 534 | } 535 | 536 | } 537 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/camera/CameraProxy.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.camera; 2 | 3 | import android.app.Activity; 4 | import android.graphics.ImageFormat; 5 | import android.graphics.Rect; 6 | import android.graphics.SurfaceTexture; 7 | import android.hardware.Camera; 8 | import android.hardware.Camera.CameraInfo; 9 | import android.hardware.Camera.Parameters; 10 | import android.hardware.Camera.PreviewCallback; 11 | import android.hardware.Camera.Size; 12 | import android.util.Log; 13 | import android.view.OrientationEventListener; 14 | import android.view.Surface; 15 | import android.view.SurfaceHolder; 16 | 17 | import java.io.IOException; 18 | import java.util.ArrayList; 19 | import java.util.List; 20 | 21 | @SuppressWarnings("deprecation") 22 | public class CameraProxy implements Camera.AutoFocusCallback { 23 | 24 | private static final String TAG = "CameraProxy"; 25 | 26 | private Activity mActivity; 27 | private Camera mCamera; 28 | private Parameters mParameters; 29 | private CameraInfo mCameraInfo = new CameraInfo(); 30 | private int mCameraId = CameraInfo.CAMERA_FACING_BACK; 31 | private int mPreviewWidth = 1440; // default 1440 32 | private int mPreviewHeight = 1080; // default 1080 33 | private float mPreviewScale = mPreviewHeight * 1f / mPreviewWidth; 34 | private PreviewCallback mPreviewCallback; // 相机预览的数据回调 35 | private OrientationEventListener mOrientationEventListener; 36 | private int mLatestRotation = 0; 37 | 38 | private byte[] mPreviewBuffer; 39 | 40 | public CameraProxy(Activity activity) { 41 | mActivity = activity; 42 | mOrientationEventListener = new OrientationEventListener(mActivity) { 43 | @Override 44 | public void onOrientationChanged(int orientation) { 45 | setPictureRotate(orientation); 46 | } 47 | }; 48 | } 49 | 50 | public void openCamera() { 51 | Log.d(TAG, "openCamera cameraId: " + mCameraId); 52 | mCamera = Camera.open(mCameraId); 53 | Camera.getCameraInfo(mCameraId, mCameraInfo); 54 | initConfig(); 55 | setDisplayOrientation(); 56 | Log.d(TAG, "openCamera enable mOrientationEventListener"); 57 | mOrientationEventListener.enable(); 58 | } 59 | 60 | public void releaseCamera() { 61 | if (mCamera != null) { 62 | Log.v(TAG, "releaseCamera"); 63 | mCamera.setPreviewCallback(null); 64 | mCamera.stopPreview(); 65 | mCamera.release(); 66 | mCamera = null; 67 | } 68 | mOrientationEventListener.disable(); 69 | } 70 | 71 | public void startPreview(SurfaceHolder holder) { 72 | if (mCamera != null) { 73 | Log.v(TAG, "startPreview"); 74 | try { 75 | mCamera.setPreviewDisplay(holder); 76 | } catch (IOException e) { 77 | e.printStackTrace(); 78 | } 79 | mCamera.startPreview(); 80 | } 81 | } 82 | 83 | public void startPreview(SurfaceTexture surface) { 84 | if (mCamera != null) { 85 | Log.v(TAG, "startPreview"); 86 | try { 87 | mCamera.setPreviewTexture(surface); 88 | } catch (IOException e) { 89 | e.printStackTrace(); 90 | } 91 | mCamera.startPreview(); 92 | } 93 | } 94 | 95 | public void stopPreview() { 96 | if (mCamera != null) { 97 | Log.v(TAG, "stopPreview"); 98 | mCamera.stopPreview(); 99 | } 100 | } 101 | 102 | public boolean isFrontCamera() { 103 | return mCameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT; 104 | } 105 | 106 | private void initConfig() { 107 | Log.v(TAG, "initConfig"); 108 | try { 109 | mParameters = mCamera.getParameters(); 110 | // 如果摄像头不支持这些参数都会出错的，所以设置的时候一定要判断是否支持 111 | List supportedFlashModes = mParameters.getSupportedFlashModes(); 112 | if (supportedFlashModes != null && supportedFlashModes.contains(Parameters.FLASH_MODE_OFF)) { 113 | mParameters.setFlashMode(Parameters.FLASH_MODE_OFF); // 设置闪光模式 114 | } 115 | List supportedFocusModes = mParameters.getSupportedFocusModes(); 116 | if (supportedFocusModes != null && supportedFocusModes.contains(Parameters.FOCUS_MODE_AUTO)) { 117 | mParameters.setFocusMode(Parameters.FOCUS_MODE_AUTO); // 设置聚焦模式 118 | } 119 | mParameters.setPreviewFormat(ImageFormat.NV21); // 设置预览图片格式 120 | mParameters.setPictureFormat(ImageFormat.JPEG); // 设置拍照图片格式 121 | mParameters.setExposureCompensation(0); // 设置曝光强度 122 | Size previewSize = getSuitableSize(mParameters.getSupportedPreviewSizes()); 123 | mPreviewWidth = previewSize.width; 124 | mPreviewHeight = previewSize.height; 125 | mParameters.setPreviewSize(mPreviewWidth, mPreviewHeight); // 设置预览图片大小 126 | Log.d(TAG, "previewWidth: " + mPreviewWidth + ", previewHeight: " + mPreviewHeight); 127 | Size pictureSize = getSuitableSize(mParameters.getSupportedPictureSizes()); 128 | mParameters.setPictureSize(pictureSize.width, pictureSize.height); 129 | Log.d(TAG, "pictureWidth: " + pictureSize.width + ", pictureHeight: " + pictureSize.height); 130 | mCamera.setParameters(mParameters); // 将设置好的parameters添加到相机里 131 | } catch (Exception e) { 132 | e.printStackTrace(); 133 | } 134 | } 135 | 136 | private Size getSuitableSize(List sizes) { 137 | int minDelta = Integer.MAX_VALUE; // 最小的差值，初始值应该设置大点保证之后的计算中会被重置 138 | int index = 0; // 最小的差值对应的索引坐标 139 | for (int i = 0; i < sizes.size(); i++) { 140 | Size size = sizes.get(i); 141 | Log.v(TAG, "SupportedSize, width: " + size.width + ", height: " + size.height); 142 | // 先判断比例是否相等 143 | if (size.width * mPreviewScale == size.height) { 144 | int delta = Math.abs(mPreviewWidth - size.width); 145 | if (delta == 0) { 146 | return size; 147 | } 148 | if (minDelta > delta) { 149 | minDelta = delta; 150 | index = i; 151 | } 152 | } 153 | } 154 | return sizes.get(index); 155 | } 156 | 157 | /** 158 | * 设置相机显示的方向，必须设置，否则显示的图像方向会错误 159 | */ 160 | private void setDisplayOrientation() { 161 | int rotation = mActivity.getWindowManager().getDefaultDisplay().getRotation(); 162 | int degrees = 0; 163 | switch (rotation) { 164 | case Surface.ROTATION_0: 165 | degrees = 0; 166 | break; 167 | case Surface.ROTATION_90: 168 | degrees = 90; 169 | break; 170 | case Surface.ROTATION_180: 171 | degrees = 180; 172 | break; 173 | case Surface.ROTATION_270: 174 | degrees = 270; 175 | break; 176 | } 177 | int result; 178 | if (mCameraInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) { 179 | result = (mCameraInfo.orientation + degrees) % 360; 180 | result = (360 - result) % 360; // compensate the mirror 181 | } else { // back-facing 182 | result = (mCameraInfo.orientation - degrees + 360) % 360; 183 | } 184 | mCamera.setDisplayOrientation(result); 185 | } 186 | 187 | private void setPictureRotate(int orientation) { 188 | if (orientation == OrientationEventListener.ORIENTATION_UNKNOWN) return; 189 | orientation = (orientation + 45) / 90 * 90; 190 | int rotation; 191 | if (mCameraInfo.facing == CameraInfo.CAMERA_FACING_FRONT) { 192 | rotation = (mCameraInfo.orientation - orientation + 360) % 360; 193 | } else { // back-facing camera 194 | rotation = (mCameraInfo.orientation + orientation) % 360; 195 | } 196 | mLatestRotation = rotation; 197 | } 198 | 199 | public int getLatestRotation() { 200 | return mLatestRotation; 201 | } 202 | 203 | public void setPreviewCallback(PreviewCallback previewCallback) { 204 | mPreviewCallback = previewCallback; 205 | if (mPreviewBuffer == null) { 206 | mPreviewBuffer = new byte[mPreviewWidth * mPreviewHeight * 3 / 2]; 207 | } 208 | mCamera.addCallbackBuffer(mPreviewBuffer); 209 | mCamera.setPreviewCallbackWithBuffer(mPreviewCallback); // 设置预览的回调 210 | } 211 | 212 | public void takePicture(Camera.PictureCallback pictureCallback) { 213 | mCamera.takePicture(null, null, pictureCallback); 214 | } 215 | 216 | public void switchCamera() { 217 | mCameraId ^= 1; // 先改变摄像头朝向 218 | releaseCamera(); 219 | openCamera(); 220 | } 221 | 222 | public void focusOnPoint(int x, int y, int width, int height) { 223 | Log.v(TAG, "touch point (" + x + ", " + y + ")"); 224 | if (mCamera == null) { 225 | return; 226 | } 227 | Parameters parameters = mCamera.getParameters(); 228 | // 1.先要判断是否支持设置聚焦区域 229 | if (parameters.getMaxNumFocusAreas() > 0) { 230 | // 2.以触摸点为中心点，view窄边的1/4为聚焦区域的默认边长 231 | int length = Math.min(width, height) >> 3; // 1/8的长度 232 | int left = x - length; 233 | int top = y - length; 234 | int right = x + length; 235 | int bottom = y + length; 236 | // 3.映射，因为相机聚焦的区域是一个(-1000,-1000)到(1000,1000)的坐标区域 237 | left = left * 2000 / width - 1000; 238 | top = top * 2000 / height - 1000; 239 | right = right * 2000 / width - 1000; 240 | bottom = bottom * 2000 / height - 1000; 241 | // 4.判断上述矩形区域是否超过边界，若超过则设置为临界值 242 | left = left < -1000 ? -1000 : left; 243 | top = top < -1000 ? -1000 : top; 244 | right = right > 1000 ? 1000 : right; 245 | bottom = bottom > 1000 ? 1000 : bottom; 246 | Log.d(TAG, "focus area (" + left + ", " + top + ", " + right + ", " + bottom + ")"); 247 | ArrayList areas = new ArrayList<>(); 248 | areas.add(new Camera.Area(new Rect(left, top, right, bottom), 600)); 249 | parameters.setFocusAreas(areas); 250 | } 251 | try { 252 | mCamera.cancelAutoFocus(); // 先要取消掉进程中所有的聚焦功能 253 | mCamera.setParameters(parameters); 254 | mCamera.autoFocus(this); // 调用聚焦 255 | } catch (Exception e) { 256 | e.printStackTrace(); 257 | } 258 | } 259 | 260 | public void handleZoom(boolean isZoomIn) { 261 | if (mParameters.isZoomSupported()) { 262 | int maxZoom = mParameters.getMaxZoom(); 263 | int zoom = mParameters.getZoom(); 264 | if (isZoomIn && zoom < maxZoom) { 265 | zoom++; 266 | } else if (zoom > 0) { 267 | zoom--; 268 | } 269 | Log.d(TAG, "handleZoom: zoom: " + zoom); 270 | mParameters.setZoom(zoom); 271 | mCamera.setParameters(mParameters); 272 | } else { 273 | Log.i(TAG, "zoom not supported"); 274 | } 275 | } 276 | 277 | public Camera getCamera() { 278 | return mCamera; 279 | } 280 | 281 | public int getPreviewWidth() { 282 | return mPreviewWidth; 283 | } 284 | 285 | public int getPreviewHeight() { 286 | return mPreviewHeight; 287 | } 288 | 289 | @Override 290 | public void onAutoFocus(boolean success, Camera camera) { 291 | Log.d(TAG, "onAutoFocus: " + success); 292 | } 293 | 294 | } 295 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/glsurfaceview/Camera2GLSurfaceView.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.glsurfaceview; 2 | 3 | import android.app.Activity; 4 | import android.content.Context; 5 | import android.graphics.SurfaceTexture; 6 | import android.opengl.GLES20; 7 | import android.opengl.GLSurfaceView; 8 | import android.util.AttributeSet; 9 | import android.util.Log; 10 | import android.view.MotionEvent; 11 | import android.view.SurfaceHolder; 12 | 13 | import com.afei.camerademo.camera.Camera2Proxy; 14 | 15 | import javax.microedition.khronos.egl.EGLConfig; 16 | import javax.microedition.khronos.opengles.GL10; 17 | 18 | public class Camera2GLSurfaceView extends GLSurfaceView implements GLSurfaceView.Renderer, SurfaceTexture.OnFrameAvailableListener { 19 | 20 | private static final String TAG = "Camera2GLSurfaceView"; 21 | private Camera2Proxy mCameraProxy; 22 | private SurfaceTexture mSurfaceTexture; 23 | private CameraDrawer mDrawer; 24 | private int mRatioWidth = 0; 25 | private int mRatioHeight = 0; 26 | private float mOldDistance; 27 | private int mTextureId = -1; 28 | 29 | public Camera2GLSurfaceView(Context context) { 30 | this(context, null); 31 | } 32 | 33 | public Camera2GLSurfaceView(Context context, AttributeSet attrs) { 34 | super(context, attrs); 35 | init(context); 36 | } 37 | 38 | private void init(Context context) { 39 | mCameraProxy = new Camera2Proxy((Activity) context); 40 | setEGLContextClientVersion(2); 41 | setRenderer(this); 42 | setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY); 43 | } 44 | 45 | @Override 46 | public void onSurfaceCreated(GL10 gl, EGLConfig config) { 47 | Log.d(TAG, "onSurfaceCreated. width: " + getWidth() + ", height: " + getHeight()); 48 | mDrawer = new CameraDrawer(); 49 | mTextureId = OpenGLUtils.getExternalOESTextureID(); 50 | mSurfaceTexture = new SurfaceTexture(mTextureId); 51 | mSurfaceTexture.setOnFrameAvailableListener(this); 52 | mCameraProxy.setUpCameraOutputs(getWidth(), getHeight()); 53 | mCameraProxy.setPreviewSurface(mSurfaceTexture); 54 | mCameraProxy.openCamera(); 55 | } 56 | 57 | @Override 58 | public void onSurfaceChanged(GL10 gl, int width, int height) { 59 | Log.d(TAG, "onSurfaceChanged. width: " + width + ", height: " + height); 60 | int previewWidth = mCameraProxy.getPreviewSize().getWidth(); 61 | int previewHeight = mCameraProxy.getPreviewSize().getHeight(); 62 | if (width > height) { 63 | setAspectRatio(previewWidth, previewHeight); 64 | } else { 65 | setAspectRatio(previewHeight, previewWidth); 66 | } 67 | GLES20.glViewport(0, 0, width, height); 68 | } 69 | 70 | @Override 71 | public void surfaceDestroyed(SurfaceHolder holder) { 72 | Log.d(TAG, "surfaceDestroyed"); 73 | super.surfaceDestroyed(holder); 74 | mCameraProxy.releaseCamera(); 75 | } 76 | 77 | @Override 78 | public void onDrawFrame(GL10 gl) { 79 | GLES20.glClearColor(0, 0, 0, 0); 80 | GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT | GLES20.GL_DEPTH_BUFFER_BIT); 81 | mSurfaceTexture.updateTexImage(); 82 | mDrawer.draw(mTextureId, mCameraProxy.isFrontCamera()); 83 | } 84 | 85 | @Override 86 | public void onFrameAvailable(SurfaceTexture surfaceTexture) { 87 | requestRender(); 88 | } 89 | 90 | private void setAspectRatio(int width, int height) { 91 | if (width < 0 || height < 0) { 92 | throw new IllegalArgumentException("Size cannot be negative."); 93 | } 94 | mRatioWidth = width; 95 | mRatioHeight = height; 96 | post(new Runnable() { 97 | @Override 98 | public void run() { 99 | requestLayout(); // must run in UI thread 100 | } 101 | }); 102 | } 103 | 104 | public Camera2Proxy getCameraProxy() { 105 | return mCameraProxy; 106 | } 107 | 108 | public SurfaceTexture getSurfaceTexture() { 109 | return mSurfaceTexture; 110 | } 111 | 112 | @Override 113 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 114 | super.onMeasure(widthMeasureSpec, heightMeasureSpec); 115 | int width = MeasureSpec.getSize(widthMeasureSpec); 116 | int height = MeasureSpec.getSize(heightMeasureSpec); 117 | if (0 == mRatioWidth || 0 == mRatioHeight) { 118 | setMeasuredDimension(width, height); 119 | } else { 120 | if (width < height * mRatioWidth / mRatioHeight) { 121 | setMeasuredDimension(width, width * mRatioHeight / mRatioWidth); 122 | } else { 123 | setMeasuredDimension(height * mRatioWidth / mRatioHeight, height); 124 | } 125 | } 126 | } 127 | 128 | @Override 129 | public boolean onTouchEvent(MotionEvent event) { 130 | if (event.getPointerCount() == 1) { 131 | // 点击聚焦 132 | mCameraProxy.triggerFocusAtPoint((int) event.getX(), (int) event.getY(), getWidth(), getHeight()); 133 | return true; 134 | } 135 | switch (event.getAction() & MotionEvent.ACTION_MASK) { 136 | case MotionEvent.ACTION_POINTER_DOWN: 137 | mOldDistance = getFingerSpacing(event); 138 | break; 139 | case MotionEvent.ACTION_MOVE: 140 | float newDistance = getFingerSpacing(event); 141 | if (newDistance > mOldDistance) { 142 | mCameraProxy.handleZoom(true); 143 | } else if (newDistance < mOldDistance) { 144 | mCameraProxy.handleZoom(false); 145 | } 146 | mOldDistance = newDistance; 147 | break; 148 | default: 149 | break; 150 | } 151 | return super.onTouchEvent(event); 152 | } 153 | 154 | private static float getFingerSpacing(MotionEvent event) { 155 | float x = event.getX(0) - event.getX(1); 156 | float y = event.getY(0) - event.getY(1); 157 | return (float) Math.sqrt(x * x + y * y); 158 | } 159 | 160 | } 161 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/glsurfaceview/CameraDrawer.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.glsurfaceview; 2 | 3 | import android.opengl.GLES11Ext; 4 | import android.opengl.GLES20; 5 | 6 | import java.nio.ByteBuffer; 7 | import java.nio.ByteOrder; 8 | import java.nio.FloatBuffer; 9 | 10 | public class CameraDrawer { 11 | 12 | private final String VERTEX_SHADER = "" + 13 | "attribute vec4 vPosition;" + 14 | "attribute vec2 inputTextureCoordinate;" + 15 | "varying vec2 textureCoordinate;" + 16 | "void main()" + 17 | "{"+ 18 | "gl_Position = vPosition;"+ 19 | "textureCoordinate = inputTextureCoordinate;" + 20 | "}"; 21 | private final String FRAGMENT_SHADER = "" + 22 | "#extension GL_OES_EGL_image_external : require\n"+ 23 | "precision mediump float;" + 24 | "varying vec2 textureCoordinate;\n" + 25 | "uniform samplerExternalOES s_texture;\n" + 26 | "void main() {" + 27 | " gl_FragColor = texture2D( s_texture, textureCoordinate );\n" + 28 | "}"; 29 | 30 | private FloatBuffer mVertexBuffer; 31 | private FloatBuffer mBackTextureBuffer; 32 | private FloatBuffer mFrontTextureBuffer; 33 | private ByteBuffer mDrawListBuffer; 34 | private int mProgram; 35 | private int mPositionHandle; 36 | private int mTextureHandle; 37 | 38 | private static final float VERTEXES[] = { 39 | -1.0f, 1.0f, 40 | -1.0f,-1.0f, 41 | 1.0f, -1.0f, 42 | 1.0f, 1.0f, 43 | }; 44 | 45 | // 后置摄像头使用的纹理坐标 46 | private static final float TEXTURE_BACK[] = { 47 | 0.0f, 1.0f, 48 | 1.0f, 1.0f, 49 | 1.0f, 0.0f, 50 | 0.0f, 0.0f, 51 | }; 52 | 53 | // 前置摄像头使用的纹理坐标 54 | private static final float TEXTURE_FRONT[] = { 55 | 1.0f, 1.0f, 56 | 0.0f, 1.0f, 57 | 0.0f, 0.0f, 58 | 1.0f, 0.0f, 59 | }; 60 | 61 | private static final byte VERTEX_ORDER[] = { 0, 1, 2, 3 }; // order to draw vertices 62 | 63 | private final int VERTEX_SIZE = 2; 64 | private final int VERTEX_STRIDE = VERTEX_SIZE * 4; 65 | 66 | public CameraDrawer() { 67 | // init float buffer for vertex coordinates 68 | mVertexBuffer = ByteBuffer.allocateDirect(VERTEXES.length * 4).order(ByteOrder.nativeOrder()).asFloatBuffer(); 69 | mVertexBuffer.put(VERTEXES).position(0); 70 | 71 | // init float buffer for texture coordinates 72 | mBackTextureBuffer = ByteBuffer.allocateDirect(TEXTURE_BACK.length * 4).order(ByteOrder.nativeOrder()).asFloatBuffer(); 73 | mBackTextureBuffer.put(TEXTURE_BACK).position(0); 74 | mFrontTextureBuffer = ByteBuffer.allocateDirect(TEXTURE_FRONT.length * 4).order(ByteOrder.nativeOrder()).asFloatBuffer(); 75 | mFrontTextureBuffer.put(TEXTURE_FRONT).position(0); 76 | 77 | // init byte buffer for draw list 78 | mDrawListBuffer = ByteBuffer.allocateDirect(VERTEX_ORDER.length).order(ByteOrder.nativeOrder()); 79 | mDrawListBuffer.put(VERTEX_ORDER).position(0); 80 | 81 | mProgram = OpenGLUtils.createProgram(VERTEX_SHADER, FRAGMENT_SHADER); 82 | mPositionHandle = GLES20.glGetAttribLocation(mProgram, "vPosition"); 83 | mTextureHandle = GLES20.glGetAttribLocation(mProgram, "inputTextureCoordinate"); 84 | } 85 | 86 | public void draw(int texture, boolean isFrontCamera) { 87 | GLES20.glUseProgram(mProgram); // 指定使用的program 88 | GLES20.glEnable(GLES20.GL_CULL_FACE); // 启动剔除 89 | GLES20.glActiveTexture(GLES20.GL_TEXTURE0); 90 | GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, texture); // 绑定纹理 91 | GLES20.glEnableVertexAttribArray(mPositionHandle); 92 | GLES20.glVertexAttribPointer(mPositionHandle, VERTEX_SIZE, GLES20.GL_FLOAT, false, VERTEX_STRIDE, mVertexBuffer); 93 | 94 | GLES20.glEnableVertexAttribArray(mTextureHandle); 95 | if (isFrontCamera) { 96 | GLES20.glVertexAttribPointer(mTextureHandle, VERTEX_SIZE, GLES20.GL_FLOAT, false, VERTEX_STRIDE, mFrontTextureBuffer); 97 | } else { 98 | GLES20.glVertexAttribPointer(mTextureHandle, VERTEX_SIZE, GLES20.GL_FLOAT, false, VERTEX_STRIDE, mBackTextureBuffer); 99 | } 100 | // 真正绘制的操作 101 | // GL_TRIANGLE_FAN模式，绘制 (0, 1, 2) 和 (0, 2, 3) 两个三角形 102 | // glDrawElements绘制索引，索引0为VERTEXES数组第一个点 (-1, 1)，以此类推 103 | GLES20.glDrawElements(GLES20.GL_TRIANGLE_FAN, VERTEX_ORDER.length, GLES20.GL_UNSIGNED_BYTE, mDrawListBuffer); 104 | 105 | GLES20.glDisableVertexAttribArray(mPositionHandle); 106 | GLES20.glDisableVertexAttribArray(mTextureHandle); 107 | } 108 | } 109 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/glsurfaceview/CameraGLSurfaceView.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.glsurfaceview; 2 | 3 | import android.app.Activity; 4 | import android.content.Context; 5 | import android.graphics.SurfaceTexture; 6 | import android.opengl.GLES20; 7 | import android.opengl.GLSurfaceView; 8 | import android.util.AttributeSet; 9 | import android.util.Log; 10 | import android.view.MotionEvent; 11 | 12 | import com.afei.camerademo.camera.CameraProxy; 13 | 14 | import javax.microedition.khronos.egl.EGLConfig; 15 | import javax.microedition.khronos.opengles.GL10; 16 | 17 | public class CameraGLSurfaceView extends GLSurfaceView implements GLSurfaceView.Renderer, SurfaceTexture.OnFrameAvailableListener { 18 | 19 | private static final String TAG = "CameraGLSurfaceView"; 20 | private CameraProxy mCameraProxy; 21 | private SurfaceTexture mSurfaceTexture; 22 | private CameraDrawer mDrawer; 23 | private int mRatioWidth = 0; 24 | private int mRatioHeight = 0; 25 | private float mOldDistance; 26 | private int mTextureId = -1; 27 | 28 | public CameraGLSurfaceView(Context context) { 29 | this(context, null); 30 | } 31 | 32 | public CameraGLSurfaceView(Context context, AttributeSet attrs) { 33 | super(context, attrs); 34 | init(context); 35 | } 36 | 37 | private void init(Context context) { 38 | mCameraProxy = new CameraProxy((Activity) context); 39 | setEGLContextClientVersion(2); 40 | setRenderer(this); 41 | setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY); 42 | } 43 | 44 | @Override 45 | public void onSurfaceCreated(GL10 gl, EGLConfig config) { 46 | mTextureId = OpenGLUtils.getExternalOESTextureID(); 47 | mSurfaceTexture = new SurfaceTexture(mTextureId); 48 | mSurfaceTexture.setOnFrameAvailableListener(this); 49 | mCameraProxy.openCamera(); 50 | mDrawer = new CameraDrawer(); 51 | } 52 | 53 | @Override 54 | public void onSurfaceChanged(GL10 gl, int width, int height) { 55 | Log.d(TAG, "onSurfaceChanged. thread: " + Thread.currentThread().getName()); 56 | Log.d(TAG, "onSurfaceChanged. width: " + width + ", height: " + height); 57 | int previewWidth = mCameraProxy.getPreviewWidth(); 58 | int previewHeight = mCameraProxy.getPreviewHeight(); 59 | if (width > height) { 60 | setAspectRatio(previewWidth, previewHeight); 61 | } else { 62 | setAspectRatio(previewHeight, previewWidth); 63 | } 64 | GLES20.glViewport(0, 0, width, height); 65 | mCameraProxy.startPreview(mSurfaceTexture); 66 | } 67 | 68 | @Override 69 | public void onDrawFrame(GL10 gl) { 70 | GLES20.glClearColor(0, 0, 0, 0); 71 | GLES20.glClear(GLES20.GL_COLOR_BUFFER_BIT | GLES20.GL_DEPTH_BUFFER_BIT); 72 | mSurfaceTexture.updateTexImage(); 73 | mDrawer.draw(mTextureId, mCameraProxy.isFrontCamera()); 74 | } 75 | 76 | @Override 77 | public void onFrameAvailable(SurfaceTexture surfaceTexture) { 78 | requestRender(); 79 | } 80 | 81 | private void setAspectRatio(int width, int height) { 82 | if (width < 0 || height < 0) { 83 | throw new IllegalArgumentException("Size cannot be negative."); 84 | } 85 | mRatioWidth = width; 86 | mRatioHeight = height; 87 | post(new Runnable() { 88 | @Override 89 | public void run() { 90 | requestLayout(); // must run in UI thread 91 | } 92 | }); 93 | } 94 | 95 | public CameraProxy getCameraProxy() { 96 | return mCameraProxy; 97 | } 98 | 99 | public SurfaceTexture getSurfaceTexture() { 100 | return mSurfaceTexture; 101 | } 102 | 103 | @Override 104 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 105 | super.onMeasure(widthMeasureSpec, heightMeasureSpec); 106 | int width = MeasureSpec.getSize(widthMeasureSpec); 107 | int height = MeasureSpec.getSize(heightMeasureSpec); 108 | if (0 == mRatioWidth || 0 == mRatioHeight) { 109 | setMeasuredDimension(width, height); 110 | } else { 111 | if (width < height * mRatioWidth / mRatioHeight) { 112 | setMeasuredDimension(width, width * mRatioHeight / mRatioWidth); 113 | } else { 114 | setMeasuredDimension(height * mRatioWidth / mRatioHeight, height); 115 | } 116 | } 117 | } 118 | 119 | @Override 120 | public boolean onTouchEvent(MotionEvent event) { 121 | if (event.getPointerCount() == 1) { 122 | // 点击聚焦 123 | mCameraProxy.focusOnPoint((int) event.getX(), (int) event.getY(), getWidth(), getHeight()); 124 | return true; 125 | } 126 | switch (event.getAction() & MotionEvent.ACTION_MASK) { 127 | case MotionEvent.ACTION_POINTER_DOWN: 128 | mOldDistance = getFingerSpacing(event); 129 | break; 130 | case MotionEvent.ACTION_MOVE: 131 | float newDistance = getFingerSpacing(event); 132 | if (newDistance > mOldDistance) { 133 | mCameraProxy.handleZoom(true); 134 | } else if (newDistance < mOldDistance) { 135 | mCameraProxy.handleZoom(false); 136 | } 137 | mOldDistance = newDistance; 138 | break; 139 | default: 140 | break; 141 | } 142 | return super.onTouchEvent(event); 143 | } 144 | 145 | private static float getFingerSpacing(MotionEvent event) { 146 | float x = event.getX(0) - event.getX(1); 147 | float y = event.getY(0) - event.getY(1); 148 | return (float) Math.sqrt(x * x + y * y); 149 | } 150 | 151 | } 152 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/glsurfaceview/GLSurfaceCamera2Activity.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.glsurfaceview; 2 | 3 | import android.content.Intent; 4 | import android.graphics.Bitmap; 5 | import android.graphics.BitmapFactory; 6 | import android.media.Image; 7 | import android.os.AsyncTask; 8 | import android.os.Bundle; 9 | import android.provider.MediaStore; 10 | import android.view.View; 11 | import android.widget.ImageView; 12 | 13 | import androidx.appcompat.app.AppCompatActivity; 14 | 15 | import com.afei.camerademo.ImageUtils; 16 | import com.afei.camerademo.R; 17 | import com.afei.camerademo.camera.Camera2Proxy; 18 | 19 | import java.nio.ByteBuffer; 20 | 21 | public class GLSurfaceCamera2Activity extends AppCompatActivity implements View.OnClickListener { 22 | 23 | private static final String TAG = "GLSurfaceCamera2Act"; 24 | 25 | private ImageView mCloseIv; 26 | private ImageView mSwitchCameraIv; 27 | private ImageView mTakePictureIv; 28 | private ImageView mPictureIv; 29 | private Camera2GLSurfaceView mCameraView; 30 | 31 | private Camera2Proxy mCameraProxy; 32 | 33 | @Override 34 | protected void onCreate(Bundle savedInstanceState) { 35 | super.onCreate(savedInstanceState); 36 | setContentView(R.layout.activity_glsurface_camera2); 37 | initView(); 38 | } 39 | 40 | private void initView() { 41 | mCloseIv = findViewById(R.id.toolbar_close_iv); 42 | mCloseIv.setOnClickListener(this); 43 | mSwitchCameraIv = findViewById(R.id.toolbar_switch_iv); 44 | mSwitchCameraIv.setOnClickListener(this); 45 | mTakePictureIv = findViewById(R.id.take_picture_iv); 46 | mTakePictureIv.setOnClickListener(this); 47 | mPictureIv = findViewById(R.id.picture_iv); 48 | mPictureIv.setOnClickListener(this); 49 | mPictureIv.setImageBitmap(ImageUtils.getLatestThumbBitmap()); 50 | mCameraView = findViewById(R.id.camera_view); 51 | mCameraProxy = mCameraView.getCameraProxy(); 52 | } 53 | 54 | @Override 55 | protected void onResume() { 56 | super.onResume(); 57 | mCameraView.onResume(); 58 | } 59 | 60 | @Override 61 | protected void onPause() { 62 | super.onPause(); 63 | mCameraView.onPause(); 64 | } 65 | 66 | @Override 67 | public void onClick(View v) { 68 | switch (v.getId()) { 69 | case R.id.toolbar_close_iv: 70 | finish(); 71 | break; 72 | case R.id.toolbar_switch_iv: 73 | mCameraProxy.switchCamera(); 74 | break; 75 | case R.id.take_picture_iv: 76 | mCameraProxy.captureStillPicture(reader -> new ImageSaveTask().execute(reader.acquireNextImage())); // 拍照 77 | break; 78 | case R.id.picture_iv: 79 | Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI); 80 | startActivity(intent); 81 | break; 82 | } 83 | } 84 | 85 | private class ImageSaveTask extends AsyncTask { 86 | 87 | @Override 88 | protected Bitmap doInBackground(Image... images) { 89 | ByteBuffer buffer = images[0].getPlanes()[0].getBuffer(); 90 | byte[] bytes = new byte[buffer.remaining()]; 91 | buffer.get(bytes); 92 | if (mCameraProxy.isFrontCamera()) { 93 | Bitmap bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length); 94 | // 前置摄像头需要左右镜像 95 | Bitmap rotateBitmap = ImageUtils.rotateBitmap(bitmap, 0, true, true); 96 | ImageUtils.saveBitmap(rotateBitmap); 97 | rotateBitmap.recycle(); 98 | } else { 99 | ImageUtils.saveImage(bytes); 100 | } 101 | images[0].close(); 102 | return ImageUtils.getLatestThumbBitmap(); 103 | } 104 | 105 | @Override 106 | protected void onPostExecute(Bitmap bitmap) { 107 | mPictureIv.setImageBitmap(bitmap); 108 | } 109 | } 110 | 111 | } 112 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/glsurfaceview/GLSurfaceCameraActivity.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.glsurfaceview; 2 | 3 | import android.content.Intent; 4 | import android.graphics.Bitmap; 5 | import android.graphics.BitmapFactory; 6 | import android.hardware.Camera; 7 | import android.os.AsyncTask; 8 | import android.os.Bundle; 9 | import android.provider.MediaStore; 10 | import android.util.Log; 11 | import android.view.View; 12 | import android.widget.ImageView; 13 | 14 | import androidx.appcompat.app.AppCompatActivity; 15 | 16 | import com.afei.camerademo.ImageUtils; 17 | import com.afei.camerademo.R; 18 | import com.afei.camerademo.camera.CameraProxy; 19 | 20 | public class GLSurfaceCameraActivity extends AppCompatActivity implements View.OnClickListener { 21 | 22 | private static final String TAG = "SurfaceCameraActivity"; 23 | 24 | private ImageView mCloseIv; 25 | private ImageView mSwitchCameraIv; 26 | private ImageView mTakePictureIv; 27 | private ImageView mPictureIv; 28 | private CameraGLSurfaceView mCameraView; 29 | 30 | private CameraProxy mCameraProxy; 31 | 32 | @Override 33 | protected void onCreate(Bundle savedInstanceState) { 34 | super.onCreate(savedInstanceState); 35 | setContentView(R.layout.activity_glsurface_camera); 36 | initView(); 37 | } 38 | 39 | private void initView() { 40 | mCloseIv = findViewById(R.id.toolbar_close_iv); 41 | mCloseIv.setOnClickListener(this); 42 | mSwitchCameraIv = findViewById(R.id.toolbar_switch_iv); 43 | mSwitchCameraIv.setOnClickListener(this); 44 | mTakePictureIv = findViewById(R.id.take_picture_iv); 45 | mTakePictureIv.setOnClickListener(this); 46 | mPictureIv = findViewById(R.id.picture_iv); 47 | mPictureIv.setOnClickListener(this); 48 | mPictureIv.setImageBitmap(ImageUtils.getLatestThumbBitmap()); 49 | mCameraView = findViewById(R.id.camera_view); 50 | mCameraProxy = mCameraView.getCameraProxy(); 51 | } 52 | 53 | @Override 54 | public void onClick(View v) { 55 | switch (v.getId()) { 56 | case R.id.toolbar_close_iv: 57 | finish(); 58 | break; 59 | case R.id.toolbar_switch_iv: 60 | mCameraProxy.switchCamera(); 61 | mCameraProxy.startPreview(mCameraView.getSurfaceTexture()); 62 | break; 63 | case R.id.take_picture_iv: 64 | mCameraProxy.takePicture(mPictureCallback); 65 | break; 66 | case R.id.picture_iv: 67 | Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI); 68 | startActivity(intent); 69 | break; 70 | } 71 | } 72 | 73 | private final Camera.PictureCallback mPictureCallback = new Camera.PictureCallback() { 74 | @Override 75 | public void onPictureTaken(byte[] data, Camera camera) { 76 | Log.d(TAG, "onPictureTaken: callback"); 77 | mCameraProxy.startPreview(mCameraView.getSurfaceTexture());// 拍照结束后继续预览 78 | new ImageSaveTask().execute(data); // 保存图片 79 | } 80 | }; 81 | 82 | 83 | private class ImageSaveTask extends AsyncTask { 84 | 85 | @Override 86 | protected Bitmap doInBackground(byte[]... bytes) { 87 | long time = System.currentTimeMillis(); 88 | Bitmap bitmap = BitmapFactory.decodeByteArray(bytes[0], 0, bytes[0].length); 89 | Log.d(TAG, "BitmapFactory.decodeByteArray time: " + (System.currentTimeMillis() - time)); 90 | int rotation = mCameraProxy.getLatestRotation(); 91 | time = System.currentTimeMillis(); 92 | Bitmap rotateBitmap = ImageUtils.rotateBitmap(bitmap, rotation, mCameraProxy.isFrontCamera(), true); 93 | Log.d(TAG, "rotateBitmap time: " + (System.currentTimeMillis() - time)); 94 | time = System.currentTimeMillis(); 95 | ImageUtils.saveBitmap(rotateBitmap); 96 | Log.d(TAG, "saveBitmap time: " + (System.currentTimeMillis() - time)); 97 | return ImageUtils.getLatestThumbBitmap(); 98 | } 99 | 100 | @Override 101 | protected void onPostExecute(Bitmap bitmap) { 102 | mPictureIv.setImageBitmap(bitmap); 103 | } 104 | } 105 | } 106 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/glsurfaceview/OpenGLUtils.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.glsurfaceview; 2 | 3 | import android.content.res.Resources; 4 | import android.opengl.GLES11Ext; 5 | import android.opengl.GLES20; 6 | import android.util.Log; 7 | 8 | import java.io.IOException; 9 | import java.io.InputStream; 10 | 11 | import javax.microedition.khronos.opengles.GL10; 12 | 13 | public class OpenGLUtils { 14 | 15 | private static final String TAG = "OpenGLUtils"; 16 | 17 | public static int getExternalOESTextureID() { 18 | int[] texture = new int[1]; 19 | GLES20.glGenTextures(1, texture, 0); 20 | GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, texture[0]); 21 | GLES20.glTexParameterf(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GL10.GL_TEXTURE_MIN_FILTER, GL10.GL_LINEAR); 22 | GLES20.glTexParameterf(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GL10.GL_TEXTURE_MAG_FILTER, GL10.GL_LINEAR); 23 | GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GL10.GL_TEXTURE_WRAP_S, GL10.GL_CLAMP_TO_EDGE); 24 | GLES20.glTexParameteri(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, GL10.GL_TEXTURE_WRAP_T, GL10.GL_CLAMP_TO_EDGE); 25 | return texture[0]; 26 | } 27 | 28 | public static int loadShader(int type, String source) { 29 | // 1. create shader 30 | int shader = GLES20.glCreateShader(type); 31 | if (shader == GLES20.GL_NONE) { 32 | Log.e(TAG, "create shared failed! type: " + type); 33 | return GLES20.GL_NONE; 34 | } 35 | // 2. load shader source 36 | GLES20.glShaderSource(shader, source); 37 | // 3. compile shared source 38 | GLES20.glCompileShader(shader); 39 | // 4. check compile status 40 | int[] compiled = new int[1]; 41 | GLES20.glGetShaderiv(shader, GLES20.GL_COMPILE_STATUS, compiled, 0); 42 | if (compiled[0] == GLES20.GL_FALSE) { // compile failed 43 | Log.e(TAG, "Error compiling shader. type: " + type + ":"); 44 | Log.e(TAG, GLES20.glGetShaderInfoLog(shader)); 45 | GLES20.glDeleteShader(shader); // delete shader 46 | shader = GLES20.GL_NONE; 47 | } 48 | return shader; 49 | } 50 | 51 | public static int createProgram(String vertexSource, String fragmentSource) { 52 | // 1. load shader 53 | int vertexShader = loadShader(GLES20.GL_VERTEX_SHADER, vertexSource); 54 | if (vertexShader == GLES20.GL_NONE) { 55 | Log.e(TAG, "load vertex shader failed! "); 56 | return GLES20.GL_NONE; 57 | } 58 | int fragmentShader = loadShader(GLES20.GL_FRAGMENT_SHADER, fragmentSource); 59 | if (fragmentShader == GLES20.GL_NONE) { 60 | Log.e(TAG, "load fragment shader failed! "); 61 | return GLES20.GL_NONE; 62 | } 63 | // 2. create gl program 64 | int program = GLES20.glCreateProgram(); 65 | if (program == GLES20.GL_NONE) { 66 | Log.e(TAG, "create program failed! "); 67 | return GLES20.GL_NONE; 68 | } 69 | // 3. attach shader 70 | GLES20.glAttachShader(program, vertexShader); 71 | GLES20.glAttachShader(program, fragmentShader); 72 | // we can delete shader after attach 73 | GLES20.glDeleteShader(vertexShader); 74 | GLES20.glDeleteShader(fragmentShader); 75 | // 4. link program 76 | GLES20.glLinkProgram(program); 77 | // 5. check link status 78 | int[] linkStatus = new int[1]; 79 | GLES20.glGetProgramiv(program, GLES20.GL_LINK_STATUS, linkStatus, 0); 80 | if (linkStatus[0] == GLES20.GL_FALSE) { // link failed 81 | Log.e(TAG, "Error link program: "); 82 | Log.e(TAG, GLES20.glGetProgramInfoLog(program)); 83 | GLES20.glDeleteProgram(program); // delete program 84 | return GLES20.GL_NONE; 85 | } 86 | return program; 87 | } 88 | 89 | public static String loadFromAssets(String fileName, Resources resources) { 90 | String result = null; 91 | try { 92 | InputStream is = resources.getAssets().open(fileName); 93 | int length = is.available(); 94 | byte[] data = new byte[length]; 95 | is.read(data); 96 | is.close(); 97 | result = new String(data, "UTF-8"); 98 | result = result.replace("\\r\\n", "\\n"); 99 | } catch (IOException e) { 100 | e.printStackTrace(); 101 | } 102 | return result; 103 | } 104 | } 105 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/surfaceview/Camera2SurfaceView.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.surfaceview; 2 | 3 | import android.app.Activity; 4 | import android.content.Context; 5 | import android.graphics.Rect; 6 | import android.util.AttributeSet; 7 | import android.util.Log; 8 | import android.util.Size; 9 | import android.view.GestureDetector; 10 | import android.view.MotionEvent; 11 | import android.view.SurfaceHolder; 12 | import android.view.SurfaceView; 13 | 14 | import com.afei.camerademo.camera.Camera2Proxy; 15 | 16 | public class Camera2SurfaceView extends SurfaceView { 17 | 18 | private static final String TAG = "Camera2SurfaceView"; 19 | 20 | private Camera2Proxy mCameraProxy; 21 | private Size mPreviewSize; 22 | 23 | private GestureDetector mGestureDetector; 24 | private int mRatioWidth = 0; 25 | private int mRatioHeight = 0; 26 | private float mOldDistance; 27 | 28 | public Camera2SurfaceView(Context context) { 29 | this(context, null); 30 | } 31 | 32 | public Camera2SurfaceView(Context context, AttributeSet attrs) { 33 | this(context, attrs, 0); 34 | } 35 | 36 | public Camera2SurfaceView(Context context, AttributeSet attrs, int defStyleAttr) { 37 | this(context, attrs, defStyleAttr, 0); 38 | } 39 | 40 | public Camera2SurfaceView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 41 | super(context, attrs, defStyleAttr, defStyleRes); 42 | init(context); 43 | } 44 | 45 | private void init(Context context) { 46 | getHolder().addCallback(mSurfaceHolderCallback); 47 | mCameraProxy = new Camera2Proxy((Activity) context); 48 | mGestureDetector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() { 49 | @Override 50 | public boolean onSingleTapUp(MotionEvent e) { // 单击聚焦 51 | mCameraProxy.triggerFocusAtPoint(e.getX(), e.getY(), getWidth(), getHeight()); 52 | return true; 53 | } 54 | }); 55 | setKeepScreenOn(true); // 设置屏幕常亮 56 | } 57 | 58 | private final SurfaceHolder.Callback mSurfaceHolderCallback = new SurfaceHolder.Callback() { 59 | @Override 60 | public void surfaceCreated(SurfaceHolder holder) { 61 | Rect rect = holder.getSurfaceFrame(); 62 | mCameraProxy.setUpCameraOutputs(rect.width(), rect.height()); 63 | mPreviewSize = mCameraProxy.getPreviewSize(); 64 | holder.setFixedSize(mPreviewSize.getWidth(), mPreviewSize.getHeight()); 65 | } 66 | 67 | @Override 68 | public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { 69 | Log.d(TAG, "surfaceChanged: width: " + width + ", height: " + height); 70 | float ratio; 71 | if (width > height) { 72 | ratio = height * 1.0f / width; 73 | } else { 74 | ratio = width * 1.0f / height; 75 | } 76 | setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth()); //固定竖屏显示 77 | if (ratio == mPreviewSize.getHeight() * 1f / mPreviewSize.getWidth()) { 78 | mCameraProxy.setPreviewSurface(holder); // 等view的大小固定后再设置surface 79 | mCameraProxy.openCamera(); 80 | } 81 | } 82 | 83 | @Override 84 | public void surfaceDestroyed(SurfaceHolder holder) { 85 | mCameraProxy.releaseCamera(); 86 | } 87 | }; 88 | 89 | private void setAspectRatio(int width, int height) { 90 | if (width < 0 || height < 0) { 91 | throw new IllegalArgumentException("Size cannot be negative."); 92 | } 93 | mRatioWidth = width; 94 | mRatioHeight = height; 95 | requestLayout(); 96 | } 97 | 98 | public Camera2Proxy getCameraProxy() { 99 | return mCameraProxy; 100 | } 101 | 102 | @Override 103 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 104 | super.onMeasure(widthMeasureSpec, heightMeasureSpec); 105 | int width = MeasureSpec.getSize(widthMeasureSpec); 106 | int height = MeasureSpec.getSize(heightMeasureSpec); 107 | if (0 == mRatioWidth || 0 == mRatioHeight) { 108 | setMeasuredDimension(width, height); 109 | } else { 110 | if (width < height * mRatioWidth / mRatioHeight) { 111 | setMeasuredDimension(width, width * mRatioHeight / mRatioWidth); 112 | } else { 113 | setMeasuredDimension(height * mRatioWidth / mRatioHeight, height); 114 | } 115 | } 116 | } 117 | 118 | @Override 119 | public boolean onTouchEvent(MotionEvent event) { 120 | if (event.getPointerCount() == 1) { 121 | mCameraProxy.triggerFocusAtPoint(event.getX(), event.getY(), getWidth(), getHeight()); 122 | return true; 123 | } 124 | switch (event.getAction() & MotionEvent.ACTION_MASK) { 125 | case MotionEvent.ACTION_POINTER_DOWN: 126 | mOldDistance = getFingerSpacing(event); 127 | break; 128 | case MotionEvent.ACTION_MOVE: 129 | float newDistance = getFingerSpacing(event); 130 | if (newDistance > mOldDistance) { 131 | mCameraProxy.handleZoom(true); 132 | } else if (newDistance < mOldDistance) { 133 | mCameraProxy.handleZoom(false); 134 | } 135 | mOldDistance = newDistance; 136 | break; 137 | default: 138 | break; 139 | } 140 | return super.onTouchEvent(event); 141 | } 142 | 143 | private static float getFingerSpacing(MotionEvent event) { 144 | float x = event.getX(0) - event.getX(1); 145 | float y = event.getY(0) - event.getY(1); 146 | return (float) Math.sqrt(x * x + y * y); 147 | } 148 | 149 | } 150 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/surfaceview/CameraSurfaceView.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.surfaceview; 2 | 3 | import android.app.Activity; 4 | import android.content.Context; 5 | import android.util.AttributeSet; 6 | import android.view.MotionEvent; 7 | import android.view.SurfaceHolder; 8 | import android.view.SurfaceView; 9 | 10 | import com.afei.camerademo.camera.CameraProxy; 11 | 12 | public class CameraSurfaceView extends SurfaceView { 13 | 14 | private CameraProxy mCameraProxy; 15 | private int mRatioWidth = 0; 16 | private int mRatioHeight = 0; 17 | private float mOldDistance; 18 | 19 | public CameraSurfaceView(Context context) { 20 | this(context, null); 21 | } 22 | 23 | public CameraSurfaceView(Context context, AttributeSet attrs) { 24 | this(context, attrs, 0); 25 | } 26 | 27 | public CameraSurfaceView(Context context, AttributeSet attrs, int defStyleAttr) { 28 | this(context, attrs, defStyleAttr, 0); 29 | } 30 | 31 | public CameraSurfaceView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 32 | super(context, attrs, defStyleAttr, defStyleRes); 33 | init(context); 34 | } 35 | 36 | private void init(Context context) { 37 | getHolder().addCallback(mSurfaceHolderCallback); 38 | mCameraProxy = new CameraProxy((Activity) context); 39 | } 40 | 41 | private final SurfaceHolder.Callback mSurfaceHolderCallback = new SurfaceHolder.Callback() { 42 | @Override 43 | public void surfaceCreated(SurfaceHolder holder) { 44 | mCameraProxy.openCamera(); 45 | } 46 | 47 | @Override 48 | public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) { 49 | int previewWidth = mCameraProxy.getPreviewWidth(); 50 | int previewHeight = mCameraProxy.getPreviewHeight(); 51 | if (width > height) { 52 | setAspectRatio(previewWidth, previewHeight); 53 | } else { 54 | setAspectRatio(previewHeight, previewWidth); 55 | } 56 | mCameraProxy.startPreview(holder); 57 | } 58 | 59 | @Override 60 | public void surfaceDestroyed(SurfaceHolder holder) { 61 | mCameraProxy.releaseCamera(); 62 | } 63 | }; 64 | 65 | private void setAspectRatio(int width, int height) { 66 | if (width < 0 || height < 0) { 67 | throw new IllegalArgumentException("Size cannot be negative."); 68 | } 69 | mRatioWidth = width; 70 | mRatioHeight = height; 71 | requestLayout(); 72 | } 73 | 74 | public CameraProxy getCameraProxy() { 75 | return mCameraProxy; 76 | } 77 | 78 | @Override 79 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 80 | super.onMeasure(widthMeasureSpec, heightMeasureSpec); 81 | int width = MeasureSpec.getSize(widthMeasureSpec); 82 | int height = MeasureSpec.getSize(heightMeasureSpec); 83 | if (0 == mRatioWidth || 0 == mRatioHeight) { 84 | setMeasuredDimension(width, height); 85 | } else { 86 | if (width < height * mRatioWidth / mRatioHeight) { 87 | setMeasuredDimension(width, width * mRatioHeight / mRatioWidth); 88 | } else { 89 | setMeasuredDimension(height * mRatioWidth / mRatioHeight, height); 90 | } 91 | } 92 | } 93 | 94 | @Override 95 | public boolean onTouchEvent(MotionEvent event) { 96 | if (event.getPointerCount() == 1) { 97 | // 点击聚焦 98 | mCameraProxy.focusOnPoint((int) event.getX(), (int) event.getY(), getWidth(), getHeight()); 99 | return true; 100 | } 101 | switch (event.getAction() & MotionEvent.ACTION_MASK) { 102 | case MotionEvent.ACTION_POINTER_DOWN: 103 | mOldDistance = getFingerSpacing(event); 104 | break; 105 | case MotionEvent.ACTION_MOVE: 106 | float newDistance = getFingerSpacing(event); 107 | if (newDistance > mOldDistance) { 108 | mCameraProxy.handleZoom(true); 109 | } else if (newDistance < mOldDistance) { 110 | mCameraProxy.handleZoom(false); 111 | } 112 | mOldDistance = newDistance; 113 | break; 114 | default: 115 | break; 116 | } 117 | return super.onTouchEvent(event); 118 | } 119 | 120 | private static float getFingerSpacing(MotionEvent event) { 121 | float x = event.getX(0) - event.getX(1); 122 | float y = event.getY(0) - event.getY(1); 123 | return (float) Math.sqrt(x * x + y * y); 124 | } 125 | 126 | } 127 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/surfaceview/SurfaceCamera2Activity.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.surfaceview; 2 | 3 | import android.content.Intent; 4 | import android.graphics.Bitmap; 5 | import android.graphics.BitmapFactory; 6 | import android.media.Image; 7 | import android.os.AsyncTask; 8 | import android.os.Bundle; 9 | import android.provider.MediaStore; 10 | import android.view.View; 11 | import android.widget.ImageView; 12 | 13 | import androidx.appcompat.app.AppCompatActivity; 14 | 15 | import com.afei.camerademo.ImageUtils; 16 | import com.afei.camerademo.R; 17 | import com.afei.camerademo.camera.Camera2Proxy; 18 | 19 | import java.nio.ByteBuffer; 20 | 21 | public class SurfaceCamera2Activity extends AppCompatActivity implements View.OnClickListener { 22 | 23 | private static final String TAG = "SurfaceCamera2Activity"; 24 | 25 | private ImageView mCloseIv; 26 | private ImageView mSwitchCameraIv; 27 | private ImageView mTakePictureIv; 28 | private ImageView mPictureIv; 29 | private Camera2SurfaceView mCameraView; 30 | 31 | private Camera2Proxy mCameraProxy; 32 | 33 | @Override 34 | protected void onCreate(Bundle savedInstanceState) { 35 | super.onCreate(savedInstanceState); 36 | setContentView(R.layout.activity_surface_camera2); 37 | initView(); 38 | } 39 | 40 | private void initView() { 41 | mCloseIv = findViewById(R.id.toolbar_close_iv); 42 | mCloseIv.setOnClickListener(this); 43 | mSwitchCameraIv = findViewById(R.id.toolbar_switch_iv); 44 | mSwitchCameraIv.setOnClickListener(this); 45 | mTakePictureIv = findViewById(R.id.take_picture_iv); 46 | mTakePictureIv.setOnClickListener(this); 47 | mPictureIv = findViewById(R.id.picture_iv); 48 | mPictureIv.setOnClickListener(this); 49 | mPictureIv.setImageBitmap(ImageUtils.getLatestThumbBitmap()); 50 | mCameraView = findViewById(R.id.camera_view); 51 | mCameraProxy = mCameraView.getCameraProxy(); 52 | } 53 | 54 | @Override 55 | public void onClick(View v) { 56 | switch (v.getId()) { 57 | case R.id.toolbar_close_iv: 58 | finish(); 59 | break; 60 | case R.id.toolbar_switch_iv: 61 | mCameraProxy.switchCamera(); 62 | break; 63 | case R.id.take_picture_iv: 64 | mCameraProxy.captureStillPicture(reader -> new ImageSaveTask().execute(reader.acquireNextImage())); 65 | break; 66 | case R.id.picture_iv: 67 | Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI); 68 | startActivity(intent); 69 | break; 70 | } 71 | } 72 | 73 | private class ImageSaveTask extends AsyncTask { 74 | 75 | @Override 76 | protected Bitmap doInBackground(Image ... images) { 77 | ByteBuffer buffer = images[0].getPlanes()[0].getBuffer(); 78 | byte[] bytes = new byte[buffer.remaining()]; 79 | buffer.get(bytes); 80 | if (mCameraProxy.isFrontCamera()) { 81 | Bitmap bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length); 82 | // 前置摄像头需要左右镜像 83 | Bitmap rotateBitmap = ImageUtils.rotateBitmap(bitmap, 0, true, true); 84 | ImageUtils.saveBitmap(rotateBitmap); 85 | rotateBitmap.recycle(); 86 | } else { 87 | ImageUtils.saveImage(bytes); 88 | } 89 | images[0].close(); 90 | return ImageUtils.getLatestThumbBitmap(); 91 | } 92 | 93 | @Override 94 | protected void onPostExecute(Bitmap bitmap) { 95 | mPictureIv.setImageBitmap(bitmap); 96 | } 97 | } 98 | } 99 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/surfaceview/SurfaceCameraActivity.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.surfaceview; 2 | 3 | import android.content.Intent; 4 | import android.graphics.Bitmap; 5 | import android.graphics.BitmapFactory; 6 | import android.hardware.Camera; 7 | import android.os.AsyncTask; 8 | import android.os.Bundle; 9 | import android.provider.MediaStore; 10 | import android.util.Log; 11 | import android.view.View; 12 | import android.widget.ImageView; 13 | 14 | import androidx.appcompat.app.AppCompatActivity; 15 | 16 | import com.afei.camerademo.ImageUtils; 17 | import com.afei.camerademo.R; 18 | import com.afei.camerademo.camera.CameraProxy; 19 | 20 | public class SurfaceCameraActivity extends AppCompatActivity implements View.OnClickListener { 21 | 22 | private static final String TAG = "SurfaceCameraActivity"; 23 | 24 | private ImageView mCloseIv; 25 | private ImageView mSwitchCameraIv; 26 | private ImageView mTakePictureIv; 27 | private ImageView mPictureIv; 28 | private CameraSurfaceView mCameraView; 29 | 30 | private CameraProxy mCameraProxy; 31 | 32 | @Override 33 | protected void onCreate(Bundle savedInstanceState) { 34 | super.onCreate(savedInstanceState); 35 | setContentView(R.layout.activity_surface_camera); 36 | initView(); 37 | } 38 | 39 | private void initView() { 40 | mCloseIv = findViewById(R.id.toolbar_close_iv); 41 | mCloseIv.setOnClickListener(this); 42 | mSwitchCameraIv = findViewById(R.id.toolbar_switch_iv); 43 | mSwitchCameraIv.setOnClickListener(this); 44 | mTakePictureIv = findViewById(R.id.take_picture_iv); 45 | mTakePictureIv.setOnClickListener(this); 46 | mPictureIv = findViewById(R.id.picture_iv); 47 | mPictureIv.setOnClickListener(this); 48 | mPictureIv.setImageBitmap(ImageUtils.getLatestThumbBitmap()); 49 | mCameraView = findViewById(R.id.camera_view); 50 | mCameraProxy = mCameraView.getCameraProxy(); 51 | } 52 | 53 | @Override 54 | public void onClick(View v) { 55 | switch (v.getId()) { 56 | case R.id.toolbar_close_iv: 57 | finish(); 58 | break; 59 | case R.id.toolbar_switch_iv: 60 | mCameraProxy.switchCamera(); 61 | mCameraProxy.startPreview(mCameraView.getHolder()); 62 | break; 63 | case R.id.take_picture_iv: 64 | mCameraProxy.takePicture(mPictureCallback); 65 | break; 66 | case R.id.picture_iv: 67 | Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI); 68 | startActivity(intent); 69 | break; 70 | } 71 | } 72 | 73 | private final Camera.PictureCallback mPictureCallback = new Camera.PictureCallback() { 74 | @Override 75 | public void onPictureTaken(byte[] data, Camera camera) { 76 | mCameraProxy.startPreview(mCameraView.getHolder()); // 拍照结束后继续预览 77 | new ImageSaveTask().execute(data); // 保存图片 78 | } 79 | }; 80 | 81 | private class ImageSaveTask extends AsyncTask { 82 | 83 | @Override 84 | protected Bitmap doInBackground(byte[]... bytes) { 85 | long time = System.currentTimeMillis(); 86 | Bitmap bitmap = BitmapFactory.decodeByteArray(bytes[0], 0, bytes[0].length); 87 | Log.d(TAG, "BitmapFactory.decodeByteArray time: " + (System.currentTimeMillis() - time)); 88 | int rotation = mCameraProxy.getLatestRotation(); 89 | time = System.currentTimeMillis(); 90 | Bitmap rotateBitmap = ImageUtils.rotateBitmap(bitmap, rotation, mCameraProxy.isFrontCamera(), true); 91 | Log.d(TAG, "rotateBitmap time: " + (System.currentTimeMillis() - time)); 92 | time = System.currentTimeMillis(); 93 | ImageUtils.saveBitmap(rotateBitmap); 94 | Log.d(TAG, "saveBitmap time: " + (System.currentTimeMillis() - time)); 95 | rotateBitmap.recycle(); 96 | return ImageUtils.getLatestThumbBitmap(); 97 | } 98 | 99 | @Override 100 | protected void onPostExecute(Bitmap bitmap) { 101 | mPictureIv.setImageBitmap(bitmap); 102 | } 103 | } 104 | } 105 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/textureview/Camera2TextureView.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.textureview; 2 | 3 | import android.app.Activity; 4 | import android.content.Context; 5 | import android.graphics.SurfaceTexture; 6 | import android.util.AttributeSet; 7 | import android.util.Log; 8 | import android.view.MotionEvent; 9 | import android.view.TextureView; 10 | 11 | import com.afei.camerademo.camera.Camera2Proxy; 12 | 13 | public class Camera2TextureView extends TextureView { 14 | 15 | private static final String TAG = "CameraTextureView"; 16 | private Camera2Proxy mCameraProxy; 17 | private int mRatioWidth = 0; 18 | private int mRatioHeight = 0; 19 | private float mOldDistance; 20 | 21 | public Camera2TextureView(Context context) { 22 | this(context, null); 23 | } 24 | 25 | public Camera2TextureView(Context context, AttributeSet attrs) { 26 | this(context, attrs, 0); 27 | } 28 | 29 | public Camera2TextureView(Context context, AttributeSet attrs, int defStyleAttr) { 30 | this(context, attrs, defStyleAttr, 0); 31 | } 32 | 33 | public Camera2TextureView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 34 | super(context, attrs, defStyleAttr, defStyleRes); 35 | init(context); 36 | } 37 | 38 | private void init(Context context) { 39 | setSurfaceTextureListener(mSurfaceTextureListener); 40 | mCameraProxy = new Camera2Proxy((Activity) context); 41 | } 42 | 43 | private SurfaceTextureListener mSurfaceTextureListener = new SurfaceTextureListener() { 44 | @Override 45 | public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) { 46 | Log.v(TAG, "onSurfaceTextureAvailable. width: " + width + ", height: " + height); 47 | mCameraProxy.setUpCameraOutputs(width, height); 48 | mCameraProxy.openCamera(); 49 | mCameraProxy.setPreviewSurface(surface); 50 | // resize TextureView 51 | int previewWidth = mCameraProxy.getPreviewSize().getWidth(); 52 | int previewHeight = mCameraProxy.getPreviewSize().getHeight(); 53 | if (width > height) { 54 | setAspectRatio(previewWidth, previewHeight); 55 | } else { 56 | setAspectRatio(previewHeight, previewWidth); 57 | } 58 | } 59 | 60 | @Override 61 | public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { 62 | Log.v(TAG, "onSurfaceTextureSizeChanged. width: " + width + ", height: " + height); 63 | } 64 | 65 | @Override 66 | public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { 67 | Log.v(TAG, "onSurfaceTextureDestroyed"); 68 | mCameraProxy.releaseCamera(); 69 | return false; 70 | } 71 | 72 | @Override 73 | public void onSurfaceTextureUpdated(SurfaceTexture surface) { 74 | } 75 | }; 76 | 77 | private void setAspectRatio(int width, int height) { 78 | if (width < 0 || height < 0) { 79 | throw new IllegalArgumentException("Size cannot be negative."); 80 | } 81 | mRatioWidth = width; 82 | mRatioHeight = height; 83 | requestLayout(); 84 | } 85 | 86 | public Camera2Proxy getCameraProxy() { 87 | return mCameraProxy; 88 | } 89 | 90 | @Override 91 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 92 | super.onMeasure(widthMeasureSpec, heightMeasureSpec); 93 | int width = MeasureSpec.getSize(widthMeasureSpec); 94 | int height = MeasureSpec.getSize(heightMeasureSpec); 95 | if (0 == mRatioWidth || 0 == mRatioHeight) { 96 | setMeasuredDimension(width, height); 97 | } else { 98 | if (width < height * mRatioWidth / mRatioHeight) { 99 | setMeasuredDimension(width, width * mRatioHeight / mRatioWidth); 100 | } else { 101 | setMeasuredDimension(height * mRatioWidth / mRatioHeight, height); 102 | } 103 | } 104 | } 105 | 106 | @Override 107 | public boolean onTouchEvent(MotionEvent event) { 108 | if (event.getPointerCount() == 1) { 109 | mCameraProxy.triggerFocusAtPoint((int) event.getX(), (int) event.getY(), getWidth(), getHeight()); 110 | return true; 111 | } 112 | switch (event.getAction() & MotionEvent.ACTION_MASK) { 113 | case MotionEvent.ACTION_POINTER_DOWN: 114 | mOldDistance = getFingerSpacing(event); 115 | break; 116 | case MotionEvent.ACTION_MOVE: 117 | float newDistance = getFingerSpacing(event); 118 | if (newDistance > mOldDistance) { 119 | mCameraProxy.handleZoom(true); 120 | } else if (newDistance < mOldDistance) { 121 | mCameraProxy.handleZoom(false); 122 | } 123 | mOldDistance = newDistance; 124 | break; 125 | default: 126 | break; 127 | } 128 | return super.onTouchEvent(event); 129 | } 130 | 131 | private static float getFingerSpacing(MotionEvent event) { 132 | float x = event.getX(0) - event.getX(1); 133 | float y = event.getY(0) - event.getY(1); 134 | return (float) Math.sqrt(x * x + y * y); 135 | } 136 | 137 | } 138 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/textureview/CameraTextureView.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.textureview; 2 | 3 | import android.app.Activity; 4 | import android.content.Context; 5 | import android.graphics.SurfaceTexture; 6 | import android.util.AttributeSet; 7 | import android.util.Log; 8 | import android.view.MotionEvent; 9 | import android.view.TextureView; 10 | 11 | import com.afei.camerademo.camera.CameraProxy; 12 | 13 | public class CameraTextureView extends TextureView { 14 | 15 | private static final String TAG = "CameraTextureView"; 16 | private CameraProxy mCameraProxy; 17 | private int mRatioWidth = 0; 18 | private int mRatioHeight = 0; 19 | private float mOldDistance; 20 | 21 | public CameraTextureView(Context context) { 22 | this(context, null); 23 | } 24 | 25 | public CameraTextureView(Context context, AttributeSet attrs) { 26 | this(context, attrs, 0); 27 | } 28 | 29 | public CameraTextureView(Context context, AttributeSet attrs, int defStyleAttr) { 30 | this(context, attrs, defStyleAttr, 0); 31 | } 32 | 33 | public CameraTextureView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { 34 | super(context, attrs, defStyleAttr, defStyleRes); 35 | init(context); 36 | } 37 | 38 | private void init(Context context) { 39 | setSurfaceTextureListener(mSurfaceTextureListener); 40 | mCameraProxy = new CameraProxy((Activity) context); 41 | } 42 | 43 | private SurfaceTextureListener mSurfaceTextureListener = new SurfaceTextureListener() { 44 | @Override 45 | public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) { 46 | Log.v(TAG, "onSurfaceTextureAvailable. width: " + width + ", height: " + height); 47 | mCameraProxy.openCamera(); 48 | int previewWidth = mCameraProxy.getPreviewWidth(); 49 | int previewHeight = mCameraProxy.getPreviewHeight(); 50 | if (width > height) { 51 | setAspectRatio(previewWidth, previewHeight); 52 | } else { 53 | setAspectRatio(previewHeight, previewWidth); 54 | } 55 | mCameraProxy.startPreview(surface); 56 | } 57 | 58 | @Override 59 | public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { 60 | Log.v(TAG, "onSurfaceTextureSizeChanged. width: " + width + ", height: " + height); 61 | } 62 | 63 | @Override 64 | public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { 65 | Log.v(TAG, "onSurfaceTextureDestroyed"); 66 | mCameraProxy.releaseCamera(); 67 | return false; 68 | } 69 | 70 | @Override 71 | public void onSurfaceTextureUpdated(SurfaceTexture surface) { 72 | } 73 | }; 74 | 75 | private void setAspectRatio(int width, int height) { 76 | if (width < 0 || height < 0) { 77 | throw new IllegalArgumentException("Size cannot be negative."); 78 | } 79 | mRatioWidth = width; 80 | mRatioHeight = height; 81 | requestLayout(); 82 | } 83 | 84 | public CameraProxy getCameraProxy() { 85 | return mCameraProxy; 86 | } 87 | 88 | @Override 89 | protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 90 | super.onMeasure(widthMeasureSpec, heightMeasureSpec); 91 | int width = MeasureSpec.getSize(widthMeasureSpec); 92 | int height = MeasureSpec.getSize(heightMeasureSpec); 93 | if (0 == mRatioWidth || 0 == mRatioHeight) { 94 | setMeasuredDimension(width, height); 95 | } else { 96 | if (width < height * mRatioWidth / mRatioHeight) { 97 | setMeasuredDimension(width, width * mRatioHeight / mRatioWidth); 98 | } else { 99 | setMeasuredDimension(height * mRatioWidth / mRatioHeight, height); 100 | } 101 | } 102 | } 103 | 104 | @Override 105 | public boolean onTouchEvent(MotionEvent event) { 106 | if (event.getPointerCount() == 1) { 107 | // 点击聚焦 108 | mCameraProxy.focusOnPoint((int) event.getX(), (int) event.getY(), getWidth(), getHeight()); 109 | return true; 110 | } 111 | switch (event.getAction() & MotionEvent.ACTION_MASK) { 112 | case MotionEvent.ACTION_POINTER_DOWN: 113 | mOldDistance = getFingerSpacing(event); 114 | break; 115 | case MotionEvent.ACTION_MOVE: 116 | float newDistance = getFingerSpacing(event); 117 | if (newDistance > mOldDistance) { 118 | mCameraProxy.handleZoom(true); 119 | } else if (newDistance < mOldDistance) { 120 | mCameraProxy.handleZoom(false); 121 | } 122 | mOldDistance = newDistance; 123 | break; 124 | default: 125 | break; 126 | } 127 | return super.onTouchEvent(event); 128 | } 129 | 130 | private static float getFingerSpacing(MotionEvent event) { 131 | float x = event.getX(0) - event.getX(1); 132 | float y = event.getY(0) - event.getY(1); 133 | return (float) Math.sqrt(x * x + y * y); 134 | } 135 | 136 | } 137 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/textureview/TextureCamera2Activity.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.textureview; 2 | 3 | import android.content.Intent; 4 | import android.graphics.Bitmap; 5 | import android.graphics.BitmapFactory; 6 | import android.media.Image; 7 | import android.os.AsyncTask; 8 | import android.os.Bundle; 9 | import android.provider.MediaStore; 10 | import android.view.View; 11 | import android.widget.ImageView; 12 | 13 | import androidx.appcompat.app.AppCompatActivity; 14 | 15 | import com.afei.camerademo.ImageUtils; 16 | import com.afei.camerademo.R; 17 | import com.afei.camerademo.camera.Camera2Proxy; 18 | 19 | import java.nio.ByteBuffer; 20 | 21 | public class TextureCamera2Activity extends AppCompatActivity implements View.OnClickListener { 22 | 23 | private static final String TAG = "TextureCameraActivity"; 24 | 25 | private ImageView mCloseIv; 26 | private ImageView mSwitchCameraIv; 27 | private ImageView mTakePictureIv; 28 | private ImageView mPictureIv; 29 | private Camera2TextureView mCameraView; 30 | 31 | private Camera2Proxy mCameraProxy; 32 | 33 | @Override 34 | protected void onCreate(Bundle savedInstanceState) { 35 | super.onCreate(savedInstanceState); 36 | setContentView(R.layout.activity_texture_camera2); 37 | initView(); 38 | } 39 | 40 | private void initView() { 41 | mCloseIv = findViewById(R.id.toolbar_close_iv); 42 | mCloseIv.setOnClickListener(this); 43 | mSwitchCameraIv = findViewById(R.id.toolbar_switch_iv); 44 | mSwitchCameraIv.setOnClickListener(this); 45 | mTakePictureIv = findViewById(R.id.take_picture_iv); 46 | mTakePictureIv.setOnClickListener(this); 47 | mPictureIv = findViewById(R.id.picture_iv); 48 | mPictureIv.setOnClickListener(this); 49 | mPictureIv.setImageBitmap(ImageUtils.getLatestThumbBitmap()); 50 | mCameraView = findViewById(R.id.camera_view); 51 | mCameraProxy = mCameraView.getCameraProxy(); 52 | } 53 | 54 | @Override 55 | public void onClick(View v) { 56 | switch (v.getId()) { 57 | case R.id.toolbar_close_iv: 58 | finish(); 59 | break; 60 | case R.id.toolbar_switch_iv: 61 | mCameraProxy.switchCamera(); 62 | break; 63 | case R.id.take_picture_iv: 64 | mCameraProxy.captureStillPicture(reader -> new ImageSaveTask().execute(reader.acquireNextImage())); // 拍照 65 | break; 66 | case R.id.picture_iv: 67 | Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI); 68 | startActivity(intent); 69 | break; 70 | } 71 | } 72 | 73 | private class ImageSaveTask extends AsyncTask { 74 | 75 | @Override 76 | protected Bitmap doInBackground(Image ... images) { 77 | ByteBuffer buffer = images[0].getPlanes()[0].getBuffer(); 78 | byte[] bytes = new byte[buffer.remaining()]; 79 | buffer.get(bytes); 80 | if (mCameraProxy.isFrontCamera()) { 81 | Bitmap bitmap = BitmapFactory.decodeByteArray(bytes, 0, bytes.length); 82 | // 前置摄像头需要左右镜像 83 | Bitmap rotateBitmap = ImageUtils.rotateBitmap(bitmap, 0, true, true); 84 | ImageUtils.saveBitmap(rotateBitmap); 85 | rotateBitmap.recycle(); 86 | } else { 87 | ImageUtils.saveImage(bytes); 88 | } 89 | images[0].close(); 90 | return ImageUtils.getLatestThumbBitmap(); 91 | } 92 | 93 | @Override 94 | protected void onPostExecute(Bitmap bitmap) { 95 | mPictureIv.setImageBitmap(bitmap); 96 | } 97 | } 98 | } 99 | -------------------------------------------------------------------------------- /app/src/main/java/com/afei/camerademo/textureview/TextureCameraActivity.java: -------------------------------------------------------------------------------- 1 | package com.afei.camerademo.textureview; 2 | 3 | import android.content.Intent; 4 | import android.graphics.Bitmap; 5 | import android.graphics.BitmapFactory; 6 | import android.hardware.Camera; 7 | import android.os.AsyncTask; 8 | import android.os.Bundle; 9 | import android.provider.MediaStore; 10 | import android.util.Log; 11 | import android.view.View; 12 | import android.widget.ImageView; 13 | 14 | import androidx.appcompat.app.AppCompatActivity; 15 | 16 | import com.afei.camerademo.ImageUtils; 17 | import com.afei.camerademo.R; 18 | import com.afei.camerademo.camera.CameraProxy; 19 | 20 | public class TextureCameraActivity extends AppCompatActivity implements View.OnClickListener { 21 | 22 | private static final String TAG = "TextureCameraActivity"; 23 | 24 | private ImageView mCloseIv; 25 | private ImageView mSwitchCameraIv; 26 | private ImageView mTakePictureIv; 27 | private ImageView mPictureIv; 28 | private CameraTextureView mCameraView; 29 | 30 | private CameraProxy mCameraProxy; 31 | 32 | @Override 33 | protected void onCreate(Bundle savedInstanceState) { 34 | super.onCreate(savedInstanceState); 35 | setContentView(R.layout.activity_texture_camera); 36 | initView(); 37 | } 38 | 39 | private void initView() { 40 | mCloseIv = findViewById(R.id.toolbar_close_iv); 41 | mCloseIv.setOnClickListener(this); 42 | mSwitchCameraIv = findViewById(R.id.toolbar_switch_iv); 43 | mSwitchCameraIv.setOnClickListener(this); 44 | mTakePictureIv = findViewById(R.id.take_picture_iv); 45 | mTakePictureIv.setOnClickListener(this); 46 | mPictureIv = findViewById(R.id.picture_iv); 47 | mPictureIv.setOnClickListener(this); 48 | mPictureIv.setImageBitmap(ImageUtils.getLatestThumbBitmap()); 49 | mCameraView = findViewById(R.id.camera_view); 50 | mCameraProxy = mCameraView.getCameraProxy(); 51 | } 52 | 53 | @Override 54 | public void onClick(View v) { 55 | switch (v.getId()) { 56 | case R.id.toolbar_close_iv: 57 | finish(); 58 | break; 59 | case R.id.toolbar_switch_iv: 60 | mCameraProxy.switchCamera(); 61 | mCameraProxy.startPreview(mCameraView.getSurfaceTexture()); 62 | break; 63 | case R.id.take_picture_iv: 64 | mCameraProxy.takePicture(mPictureCallback); 65 | break; 66 | case R.id.picture_iv: 67 | Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI); 68 | startActivity(intent); 69 | break; 70 | } 71 | } 72 | 73 | private final Camera.PictureCallback mPictureCallback = new Camera.PictureCallback() { 74 | @Override 75 | public void onPictureTaken(byte[] data, Camera camera) { 76 | mCameraProxy.startPreview(mCameraView.getSurfaceTexture()); // 拍照结束后继续预览 77 | new ImageSaveTask().execute(data); // 保存图片 78 | } 79 | }; 80 | 81 | private class ImageSaveTask extends AsyncTask { 82 | 83 | @Override 84 | protected Bitmap doInBackground(byte[]... bytes) { 85 | long time = System.currentTimeMillis(); 86 | Bitmap bitmap = BitmapFactory.decodeByteArray(bytes[0], 0, bytes[0].length); 87 | Log.d(TAG, "BitmapFactory.decodeByteArray time: " + (System.currentTimeMillis() - time)); 88 | int rotation = mCameraProxy.getLatestRotation(); 89 | time = System.currentTimeMillis(); 90 | Bitmap rotateBitmap = ImageUtils.rotateBitmap(bitmap, rotation, mCameraProxy.isFrontCamera(), true); 91 | Log.d(TAG, "rotateBitmap time: " + (System.currentTimeMillis() - time)); 92 | time = System.currentTimeMillis(); 93 | ImageUtils.saveBitmap(rotateBitmap); 94 | Log.d(TAG, "saveBitmap time: " + (System.currentTimeMillis() - time)); 95 | return ImageUtils.getLatestThumbBitmap(); 96 | } 97 | 98 | @Override 99 | protected void onPostExecute(Bitmap bitmap) { 100 | mPictureIv.setImageBitmap(bitmap); 101 | } 102 | } 103 | } 104 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/click_button_selector.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_glsurface_camera.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 8 | 14 | 15 | 20 | 21 | 28 | 29 | 33 | 34 | 41 | 42 | 43 | 44 | 49 | 50 | 51 | 59 | 60 | 68 | 69 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_glsurface_camera2.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 8 | 14 | 15 | 20 | 21 | 28 | 29 | 33 | 34 | 41 | 42 | 43 | 44 | 49 | 50 | 51 | 59 | 60 | 68 | 69 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 | 15 | 16 | 17 |