├── settings.gradle
├── TouchExamples
    ├── assets
    │   └── android.jpg
    ├── res
    │   ├── drawable-hdpi
    │   │   └── ic_launcher.png
    │   ├── drawable-ldpi
    │   │   └── ic_launcher.png
    │   ├── drawable-mdpi
    │   │   └── ic_launcher.png
    │   ├── values
    │   │   ├── styles.xml
    │   │   └── dimens.xml
    │   └── layout
    │   │   ├── touch_intercept.xml
    │   │   ├── intercept_row.xml
    │   │   ├── gesture_scroll.xml
    │   │   ├── move_logger.xml
    │   │   └── touch_listener.xml
    ├── project.properties
    ├── src
    │   └── com
    │   │   └── examples
    │   │       └── customtouch
    │   │           ├── TouchDelegateActivity.java
    │   │           ├── TouchForwardActivity.java
    │   │           ├── TwoDimensionGestureScrollActivity.java
    │   │           ├── MultitouchActivity.java
    │   │           ├── TwoDimensionScrollActivity.java
    │   │           ├── widget
    │   │               ├── TouchDelegateLayout.java
    │   │               ├── TouchForwardLayout.java
    │   │               ├── RotateZoomImageView.java
    │   │               ├── TwoDimensionGestureScrollView.java
    │   │               └── TwoDimensionScrollView.java
    │   │           ├── TouchListenerActivity.java
    │   │           ├── MoveLoggerActivity.java
    │   │           ├── MainActivity.java
    │   │           └── TouchInterceptActivity.java
    ├── build.gradle
    └── AndroidManifest.xml
├── gradle
    └── wrapper
    │   ├── gradle-wrapper.jar
    │   └── gradle-wrapper.properties
├── .gitignore
├── README.md
├── license.txt
├── gradlew.bat
└── gradlew


/settings.gradle:
--------------------------------------------------------------------------------
1 | include ':TouchExamples'
2 | 


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/TouchExamples/assets/android.jpg:
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https://raw.githubusercontent.com/devunwired/custom-touch-examples/HEAD/TouchExamples/assets/android.jpg


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/gradle/wrapper/gradle-wrapper.jar:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/devunwired/custom-touch-examples/HEAD/gradle/wrapper/gradle-wrapper.jar


--------------------------------------------------------------------------------
/TouchExamples/res/drawable-hdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/devunwired/custom-touch-examples/HEAD/TouchExamples/res/drawable-hdpi/ic_launcher.png


--------------------------------------------------------------------------------
/TouchExamples/res/drawable-ldpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/devunwired/custom-touch-examples/HEAD/TouchExamples/res/drawable-ldpi/ic_launcher.png


--------------------------------------------------------------------------------
/TouchExamples/res/drawable-mdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/devunwired/custom-touch-examples/HEAD/TouchExamples/res/drawable-mdpi/ic_launcher.png


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/TouchExamples/res/values/styles.xml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <resources>
3 |     <style name="AppTheme" parent="Theme.AppCompat"/>
4 | </resources>


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/TouchExamples/res/values/dimens.xml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <resources>
3 |     <dimen name="header_height">160dp</dimen>
4 |     <dimen name="pan_content_width">1280dp</dimen>
5 |     <dimen name="pan_content_height">720dp</dimen>
6 | </resources>


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/.gitignore:
--------------------------------------------------------------------------------
 1 | #OSX Noise
 2 | .DS_Store
 3 | 
 4 | #Gradle Noise
 5 | .gradle/
 6 | 
 7 | #Build output
 8 | bin/
 9 | gen/
10 | out/
11 | build/
12 | 
13 | #Project Files
14 | .idea/
15 | *.iml
16 | .classpath
17 | .project
18 | 
19 | #Ant config files
20 | local.properties


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/TouchExamples/res/layout/touch_intercept.xml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <ListView xmlns:android="http://schemas.android.com/apk/res/android"
3 |     android:id="@+id/list"
4 |     android:layout_width="match_parent"
5 |     android:layout_height="match_parent"/>


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/gradle/wrapper/gradle-wrapper.properties:
--------------------------------------------------------------------------------
1 | #Sat Mar 25 12:30:33 CET 2017
2 | distributionBase=GRADLE_USER_HOME
3 | distributionPath=wrapper/dists
4 | zipStoreBase=GRADLE_USER_HOME
5 | zipStorePath=wrapper/dists
6 | distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip
7 | 


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/TouchExamples/res/layout/intercept_row.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <TextView xmlns:android="http://schemas.android.com/apk/res/android"
3 |     android:id="@+id/text"
4 |     android:layout_width="match_parent"
5 |     android:layout_height="?android:attr/listPreferredItemHeight"
6 |     android:textStyle="bold"
7 |     android:gravity="center_vertical"
8 |     android:padding="5dp"/>


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/TouchExamples/project.properties:
--------------------------------------------------------------------------------
 1 | # This file is automatically generated by Android Tools.
 2 | # Do not modify this file -- YOUR CHANGES WILL BE ERASED!
 3 | #
 4 | # This file must be checked in Version Control Systems.
 5 | #
 6 | # To customize properties used by the Ant build system use,
 7 | # "ant.properties", and override values to adapt the script to your
 8 | # project structure.
 9 | 
10 | # Project target.
11 | target=android-15
12 | 


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/README.md:
--------------------------------------------------------------------------------
 1 | ### Mastering Android Touch Examples ###
 2 | 
 3 | This repository contains a sample application demonstrating many of the techniques for doing custom touch event handling discussed in "Mastering the Android Touch System".
 4 | 
 5 | Examples include:
 6 | 
 7 | - Overriding onTouchEvent()
 8 | - Overriding onInterceptTouchEvent()
 9 | - GestureDetector
10 | - ScaleGestureDetector
11 | - TouchDelegate
12 | 
13 | The sample code is licensed under the MIT Open Source License


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/TouchExamples/res/layout/gesture_scroll.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <com.examples.customtouch.widget.TwoDimensionGestureScrollView xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:layout_width="match_parent"
 4 |     android:layout_height="match_parent">
 5 |     <FrameLayout
 6 |         android:layout_width="wrap_content"
 7 |         android:layout_height="wrap_content">
 8 |         <ImageView
 9 |             android:id="@+id/imageView"
10 |             android:layout_width="2048dp"
11 |             android:layout_height="1280dp" />
12 |     </FrameLayout>
13 | </com.examples.customtouch.widget.TwoDimensionGestureScrollView>


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/TouchExamples/src/com/examples/customtouch/TouchDelegateActivity.java:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright (c) 2012 Wireless Designs, LLC
 3 |  *
 4 |  * See the file license.txt for copying permission.
 5 |  */
 6 | package com.examples.customtouch;
 7 | 
 8 | import android.os.Bundle;
 9 | import android.support.v7.app.AppCompatActivity;
10 | 
11 | import com.examples.customtouch.widget.TouchDelegateLayout;
12 | 
13 | public class TouchDelegateActivity extends AppCompatActivity {
14 | 
15 | 	@Override
16 | 	protected void onCreate(Bundle savedInstanceState) {
17 | 		super.onCreate(savedInstanceState);
18 | 		TouchDelegateLayout layout = new TouchDelegateLayout(this);
19 | 		setContentView(layout);
20 | 	}
21 | }
22 | 


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/TouchExamples/build.gradle:
--------------------------------------------------------------------------------
 1 | apply plugin: 'com.android.application'
 2 | 
 3 | android {
 4 |     compileSdkVersion 25
 5 |     buildToolsVersion "25.0.2"
 6 | 
 7 |     defaultConfig {
 8 |         minSdkVersion 16
 9 |         targetSdkVersion 25
10 |         versionName "1.0"
11 |         versionCode 1
12 |     }
13 | 
14 |     sourceSets {
15 |         main {
16 |             assets.srcDirs       = ['assets']
17 |             res.srcDirs          = ['res']
18 |             aidl.srcDirs         = ['src']
19 |             resources.srcDirs    = ['src']
20 |             renderscript.srcDirs = ['src']
21 |             java.srcDirs         = ['src']
22 |             manifest.srcFile 'AndroidManifest.xml'
23 |         }
24 |     }
25 | 
26 |     dependencies {
27 |         compile 'com.android.support:appcompat-v7:25.3.0'
28 |     }
29 | }


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/TouchExamples/res/layout/move_logger.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:layout_width="match_parent"
 4 |     android:layout_height="match_parent"
 5 |     android:orientation="vertical">
 6 |     <TextView
 7 |         android:id="@+id/view_logall"
 8 |         android:layout_width="match_parent"
 9 |         android:layout_height="0dp"
10 |         android:layout_weight="1"
11 |         android:gravity="center"
12 |         android:text="Log All Events"
13 |         android:textSize="18sp"
14 |         android:background="#500"/>
15 |     <TextView
16 |         android:id="@+id/view_logslop"
17 |         android:layout_width="match_parent"
18 |         android:layout_height="0dp"
19 |         android:layout_weight="1"
20 |         android:gravity="center"
21 |         android:text="Use Slop Checks"
22 |         android:textSize="18sp"
23 |         android:background="#005" />
24 | </LinearLayout>


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/TouchExamples/src/com/examples/customtouch/TouchForwardActivity.java:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright (c) 2012 Wireless Designs, LLC
 3 |  *
 4 |  * See the file license.txt for copying permission.
 5 |  */
 6 | package com.examples.customtouch;
 7 | 
 8 | import android.os.Bundle;
 9 | import android.support.v7.app.AppCompatActivity;
10 | import android.view.Gravity;
11 | import android.view.ViewGroup.LayoutParams;
12 | import android.widget.Button;
13 | import android.widget.FrameLayout;
14 | 
15 | import com.examples.customtouch.widget.TouchForwardLayout;
16 | 
17 | public class TouchForwardActivity extends AppCompatActivity {
18 | 
19 | 	@Override
20 | 	protected void onCreate(Bundle savedInstanceState) {
21 | 		super.onCreate(savedInstanceState);
22 | 		
23 | 		TouchForwardLayout layout = new TouchForwardLayout(this);
24 | 		
25 | 		Button button = new Button(this);
26 | 		button.setText("You Can't Miss Me!");
27 | 		
28 | 		FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT,
29 |                 LayoutParams.WRAP_CONTENT, Gravity.CENTER);
30 | 		layout.addView(button, lp);
31 | 		setContentView(layout);
32 | 	}
33 | }
34 | 


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/license.txt:
--------------------------------------------------------------------------------
 1 | Copyright (c) 2012 Wireless Designs, LLC
 2 | 
 3 | Permission is hereby granted, free of charge, to any person obtaining
 4 | a copy of this software and associated documentation files (the
 5 | "Software"), to deal in the Software without restriction, including
 6 | without limitation the rights to use, copy, modify, merge, publish,
 7 | distribute, sublicense, and/or sell copies of the Software, and to
 8 | permit persons to whom the Software is furnished to do so, subject to
 9 | the following conditions:
10 | 
11 | The above copyright notice and this permission notice shall be
12 | included in all copies or substantial portions of the Software.
13 | 
14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
15 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
16 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
17 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
18 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
19 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
20 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.


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/TouchExamples/src/com/examples/customtouch/TwoDimensionGestureScrollActivity.java:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright (c) 2012 Wireless Designs, LLC
 3 |  *
 4 |  * See the file license.txt for copying permission.
 5 |  */
 6 | package com.examples.customtouch;
 7 | 
 8 | import android.graphics.Bitmap;
 9 | import android.graphics.BitmapFactory;
10 | import android.os.Bundle;
11 | import android.support.v7.app.AppCompatActivity;
12 | import android.widget.ImageView;
13 | 
14 | import java.io.IOException;
15 | import java.io.InputStream;
16 | 
17 | public class TwoDimensionGestureScrollActivity extends AppCompatActivity {
18 | 
19 | 	@Override
20 | 	protected void onCreate(Bundle savedInstanceState) {
21 | 		super.onCreate(savedInstanceState);
22 |         setContentView(R.layout.gesture_scroll);
23 |         ImageView iv = (ImageView) findViewById(R.id.imageView);
24 | 
25 |         Bitmap image;
26 |         try {
27 |             InputStream in = getAssets().open("android.jpg");
28 |             image = BitmapFactory.decodeStream(in);
29 |             in.close();
30 |         } catch (IOException e) {
31 |             image = null;
32 |         }
33 | 		iv.setImageBitmap(image);
34 | 	}
35 | }
36 | 


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/TouchExamples/src/com/examples/customtouch/MultitouchActivity.java:
--------------------------------------------------------------------------------
 1 | package com.examples.customtouch;
 2 | 
 3 | import android.graphics.Bitmap;
 4 | import android.graphics.BitmapFactory;
 5 | import android.os.Bundle;
 6 | import android.support.v7.app.AppCompatActivity;
 7 | 
 8 | import com.examples.customtouch.widget.RotateZoomImageView;
 9 | 
10 | import java.io.IOException;
11 | import java.io.InputStream;
12 | 
13 | /**
14 |  * Created by Dave Smith
15 |  * Double Encore, Inc.
16 |  * Date: 9/24/12
17 |  * MultitouchActivity
18 |  */
19 | public class MultitouchActivity extends AppCompatActivity {
20 | 
21 |     @Override
22 |     protected void onCreate(Bundle savedInstanceState) {
23 |         super.onCreate(savedInstanceState);
24 | 
25 |         RotateZoomImageView iv = new RotateZoomImageView(this);
26 | 
27 |         Bitmap image;
28 |         try {
29 |             InputStream in = getAssets().open("android.jpg");
30 |             image = BitmapFactory.decodeStream(in);
31 |             in.close();
32 |         } catch (IOException e) {
33 |             image = null;
34 |         }
35 |         iv.setImageBitmap(image);
36 | 
37 |         setContentView(iv);
38 |     }
39 | }
40 | 


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/TouchExamples/res/layout/touch_listener.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     android:layout_width="match_parent"
 4 |     android:layout_height="match_parent"
 5 |     android:orientation="vertical"
 6 |     android:padding="10dp">
 7 |     <CheckBox
 8 |         android:id="@+id/checkbox_lock"
 9 |         android:layout_width="wrap_content"
10 |         android:layout_height="wrap_content"
11 |         android:text="Lock Selection" />
12 |     <RadioGroup
13 |         android:layout_width="match_parent"
14 |         android:layout_height="wrap_content"
15 |         android:orientation="horizontal">
16 |         <RadioButton
17 |             android:id="@+id/selection_first"
18 |             android:layout_width="0dp"
19 |             android:layout_height="wrap_content"
20 |             android:layout_weight="1"
21 |             android:text="First"/>
22 |         <RadioButton
23 |             android:id="@+id/selection_second"
24 |             android:layout_width="0dp"
25 |             android:layout_height="wrap_content"
26 |             android:layout_weight="1"
27 |             android:text="Second"/>
28 |         <RadioButton
29 |             android:id="@+id/selection_third"
30 |             android:layout_width="0dp"
31 |             android:layout_height="wrap_content"
32 |             android:layout_weight="1"
33 |             android:text="Third"/>
34 |     </RadioGroup>
35 | </LinearLayout>


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/TouchExamples/src/com/examples/customtouch/TwoDimensionScrollActivity.java:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright (c) 2012 Wireless Designs, LLC
 3 |  *
 4 |  * See the file license.txt for copying permission.
 5 |  */
 6 | package com.examples.customtouch;
 7 | 
 8 | import android.os.Bundle;
 9 | import android.support.v7.app.AppCompatActivity;
10 | import android.widget.ImageButton;
11 | import android.widget.ImageView;
12 | import android.widget.LinearLayout;
13 | 
14 | import com.examples.customtouch.widget.TwoDimensionScrollView;
15 | 
16 | public class TwoDimensionScrollActivity extends AppCompatActivity {
17 | 
18 | 	@Override
19 | 	protected void onCreate(Bundle savedInstanceState) {
20 | 		super.onCreate(savedInstanceState);
21 | 
22 | 		TwoDimensionScrollView scrollView = new TwoDimensionScrollView(this);
23 | 
24 |         LinearLayout layout = new LinearLayout(this);
25 |         layout.setOrientation(LinearLayout.VERTICAL);
26 |         for(int i=0; i < 5; i++) {
27 |     		ImageButton iv = new ImageButton(this);
28 | 	    	iv.setImageResource(R.drawable.ic_launcher);
29 |             iv.setScaleType(ImageView.ScaleType.FIT_CENTER);
30 |             int width = getResources().getDimensionPixelSize(R.dimen.pan_content_width);
31 |             int height = getResources().getDimensionPixelSize(R.dimen.pan_content_height);
32 |             layout.addView(iv, new LinearLayout.LayoutParams(width, height));
33 |         }
34 | 
35 | 		scrollView.addView(layout);
36 | 		setContentView(scrollView);
37 | 	}
38 | }
39 | 


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/TouchExamples/AndroidManifest.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3 |           package="com.examples.customtouch">
 4 | 
 5 |     <application
 6 |         android:icon="@drawable/ic_launcher"
 7 |         android:label="Touch Examples"
 8 |         android:theme="@style/AppTheme">
 9 |         <activity
10 |             android:name=".MainActivity"
11 |             android:screenOrientation="portrait">
12 |             <intent-filter>
13 |                 <action android:name="android.intent.action.MAIN"/>
14 |                 <category android:name="android.intent.category.LAUNCHER"/>
15 |             </intent-filter>
16 |         </activity>
17 |         <activity
18 |             android:name=".TwoDimensionScrollActivity"
19 |             android:screenOrientation="portrait"/>
20 |         <activity
21 |             android:name=".TwoDimensionGestureScrollActivity"
22 |             android:screenOrientation="portrait"/>
23 |         <activity
24 |             android:name=".MultitouchActivity"
25 |             android:screenOrientation="portrait"/>
26 |         <activity
27 |             android:name=".MoveLoggerActivity"
28 |             android:screenOrientation="portrait"/>
29 |         <activity
30 |             android:name=".TouchForwardActivity"
31 |             android:screenOrientation="portrait"/>
32 |         <activity
33 |             android:name=".TouchDelegateActivity"
34 |             android:screenOrientation="portrait"/>
35 |         <activity
36 |             android:name=".TouchListenerActivity"
37 |             android:screenOrientation="portrait"/>
38 |         <activity
39 |             android:name=".TouchInterceptActivity"
40 |             android:screenOrientation="portrait"/>
41 |     </application>
42 | 
43 | </manifest>


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/TouchExamples/src/com/examples/customtouch/widget/TouchDelegateLayout.java:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright (c) 2012 Wireless Designs, LLC
 3 |  *
 4 |  * See the file license.txt for copying permission.
 5 |  */
 6 | package com.examples.customtouch.widget;
 7 | 
 8 | import android.content.Context;
 9 | import android.graphics.Rect;
10 | import android.util.AttributeSet;
11 | import android.view.Gravity;
12 | import android.view.TouchDelegate;
13 | import android.widget.CheckBox;
14 | import android.widget.FrameLayout;
15 | 
16 | public class TouchDelegateLayout extends FrameLayout {
17 | 
18 | 	public TouchDelegateLayout(Context context) {
19 | 		super(context);
20 | 		init();
21 | 	}
22 | 
23 | 	public TouchDelegateLayout(Context context, AttributeSet attrs) {
24 | 		super(context, attrs);
25 | 		init();
26 | 	}
27 | 
28 | 	public TouchDelegateLayout(Context context, AttributeSet attrs, int defStyle) {
29 | 		super(context, attrs, defStyle);
30 | 		init();
31 | 	}
32 | 	
33 | 	private CheckBox mButton;
34 | 	private void init() {
35 | 		mButton = new CheckBox(getContext());
36 | 		mButton.setText("Click Anywhere On Screen");
37 | 		
38 | 		addView(mButton, new FrameLayout.LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT, Gravity.CENTER));
39 | 	}
40 | 
41 | 	/*
42 | 	 * TouchDelegate is applied to this view (parent) to delegate all touches
43 | 	 * within the specified rectangle to the CheckBox (child).  Here, the rectangle
44 | 	 * is the entire size of this parent view.
45 | 	 * 
46 | 	 * This must be done after the view has measured itself so we know how big to make the rect,
47 | 	 * thus we've chosen to add the delegate in onMeasure()
48 | 	 */
49 | 	@Override
50 | 	protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
51 | 		super.onMeasure(widthMeasureSpec, heightMeasureSpec);
52 | 		//Apply the whole area of this view as the delegate area
53 | 		Rect bounds = new Rect(0, 0, getMeasuredWidth(), getMeasuredHeight());
54 | 		TouchDelegate delegate = new TouchDelegate(bounds, mButton);
55 | 		setTouchDelegate(delegate);
56 | 	}
57 | }
58 | 


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/TouchExamples/src/com/examples/customtouch/TouchListenerActivity.java:
--------------------------------------------------------------------------------
 1 | package com.examples.customtouch;
 2 | 
 3 | import android.os.Bundle;
 4 | import android.support.v7.app.AppCompatActivity;
 5 | import android.view.MotionEvent;
 6 | import android.view.View;
 7 | import android.widget.CheckBox;
 8 | 
 9 | /**
10 |  * Created by Dave Smith
11 |  * Double Encore, Inc.
12 |  * Date: 9/25/12
13 |  * TouchListenerActivity
14 |  */
15 | public class TouchListenerActivity extends AppCompatActivity implements
16 |         View.OnTouchListener {
17 | 
18 |     /* Views to display last seen touch event */
19 |     CheckBox mLockBox;
20 | 
21 |     @Override
22 |     protected void onCreate(Bundle savedInstanceState) {
23 |         super.onCreate(savedInstanceState);
24 |         setContentView(R.layout.touch_listener);
25 | 
26 |         mLockBox = (CheckBox) findViewById(R.id.checkbox_lock);
27 | 
28 |         findViewById(R.id.selection_first).setOnTouchListener(this);
29 |         findViewById(R.id.selection_second).setOnTouchListener(this);
30 |         findViewById(R.id.selection_third).setOnTouchListener(this);
31 |     }
32 | 
33 |     @Override
34 |     public boolean onTouch(View v, MotionEvent event) {
35 |         /*
36 |          * Consume the events here so the buttons cannot process them
37 |          * if the CheckBox in the UI is checked
38 |          */
39 |         return mLockBox.isChecked();
40 |     }
41 | 
42 |     private String getNameForEvent(MotionEvent event) {
43 |         String action = "";
44 |         switch (event.getAction()) {
45 |             case MotionEvent.ACTION_DOWN:
46 |                 action = "ACTION_DOWN";
47 |                 break;
48 |             case MotionEvent.ACTION_CANCEL:
49 |                 action = "ACTION_CANCEL";
50 |                 break;
51 |             case MotionEvent.ACTION_MOVE:
52 |                 action = "ACTION_MOVE";
53 |                 break;
54 |             case MotionEvent.ACTION_UP:
55 |                 action = "ACTION_UP";
56 |                 break;
57 |             default:
58 |                 return null;
59 |         }
60 | 
61 |         return String.format("%s\n%.1f, %.1f", action, event.getX(), event.getY());
62 |     }
63 | }
64 | 


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/TouchExamples/src/com/examples/customtouch/MoveLoggerActivity.java:
--------------------------------------------------------------------------------
 1 | package com.examples.customtouch;
 2 | 
 3 | import android.graphics.Point;
 4 | import android.os.Bundle;
 5 | import android.support.v7.app.AppCompatActivity;
 6 | import android.util.Log;
 7 | import android.view.MotionEvent;
 8 | import android.view.View;
 9 | import android.view.ViewConfiguration;
10 | 
11 | /**
12 |  * Created by Dave Smith
13 |  * Double Encore, Inc.
14 |  * Date: 9/24/12
15 |  * MoveLoggerActivity
16 |  */
17 | public class MoveLoggerActivity extends AppCompatActivity implements
18 |         View.OnTouchListener {
19 | 
20 |     public static final String TAG = "MoveLoggerActivity";
21 | 
22 |     /* Slop constant for this device */
23 |     private int mTouchSlop;
24 |     /* Initial touch point */
25 |     private Point mInitialTouch;
26 | 
27 |     @Override
28 |     protected void onCreate(Bundle savedInstanceState) {
29 |         super.onCreate(savedInstanceState);
30 |         setContentView(R.layout.move_logger);
31 | 
32 |         findViewById(R.id.view_logall).setOnTouchListener(this);
33 |         findViewById(R.id.view_logslop).setOnTouchListener(this);
34 | 
35 |         mTouchSlop = ViewConfiguration.get(this).getScaledTouchSlop();
36 |         mInitialTouch = new Point();
37 |     }
38 | 
39 |     @Override
40 |     public boolean onTouch(View v, MotionEvent event) {
41 |         if(event.getAction() == MotionEvent.ACTION_DOWN) {
42 |             mInitialTouch.set((int)event.getX(), (int)event.getY());
43 |             //Must declare interest to get more events
44 |             return true;
45 |         } else if (event.getAction() == MotionEvent.ACTION_MOVE) {
46 |             switch (v.getId()) {
47 |                 case R.id.view_logall:
48 |                     Log.i(TAG, String.format("Top Move: %.1f,%.1f", event.getX(), event.getY()));
49 |                     break;
50 |                 case R.id.view_logslop:
51 |                     if ( Math.abs(event.getX() - mInitialTouch.x) > mTouchSlop
52 |                             || Math.abs(event.getY() - mInitialTouch.y) > mTouchSlop ) {
53 |                         Log.i(TAG, String.format("Bottom Move: %.1f,%.1f", event.getX(), event.getY()));
54 |                     }
55 |                     break;
56 |                 default:
57 |                     break;
58 |             }
59 |         }
60 |         //Don't interefere when not necessary
61 |         return false;
62 |     }
63 | }
64 | 


--------------------------------------------------------------------------------
/TouchExamples/src/com/examples/customtouch/widget/TouchForwardLayout.java:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright (c) 2012 Wireless Designs, LLC
 3 |  *
 4 |  * See the file license.txt for copying permission.
 5 |  */
 6 | package com.examples.customtouch.widget;
 7 | 
 8 | import android.content.Context;
 9 | import android.graphics.Point;
10 | import android.util.AttributeSet;
11 | import android.view.MotionEvent;
12 | import android.view.View;
13 | import android.widget.FrameLayout;
14 | 
15 | public class TouchForwardLayout extends FrameLayout {
16 | 
17 |     private Point mTouchOffsetPoint = new Point();
18 | 
19 | 	public TouchForwardLayout(Context context) {
20 | 		super(context);
21 | 	}
22 | 
23 | 	public TouchForwardLayout(Context context, AttributeSet attrs) {
24 | 		super(context, attrs);
25 | 	}
26 | 
27 | 	public TouchForwardLayout(Context context, AttributeSet attrs, int defStyle) {
28 | 		super(context, attrs, defStyle);
29 | 	}
30 | 
31 | 	@Override
32 | 	public boolean onInterceptTouchEvent(MotionEvent ev) {
33 | 		//Don't let any touches be passed down to the children automatically
34 | 		return true;
35 | 	}
36 | 	
37 | 	/*
38 | 	 * In onTouchEvent(), we pass all the touches we receive directly to the
39 | 	 * first child by calling its dispatchTouchEvent() method.
40 | 	 * 
41 | 	 * Note that, we modify the event so the initial location of the touch will
42 | 	 * will report as being centered in the view we are forwarding to.  Each event after
43 | 	 * this will be offset by the same amount, which creates the effect that the finger. This may have consequences depending on the reasoning for forwarding the event.
44 | 	 * MotionEvent.setLocation() can be used to modify the x/y before forwarding.
45 | 	 */
46 | 	@Override
47 | 	public boolean onTouchEvent(MotionEvent event) {
48 | 		//Forward all touch events to the first child
49 | 		View child = getChildAt(0);
50 | 		if(child == null) {
51 | 			return false;
52 | 		}
53 | 
54 |         if (event.getAction() == MotionEvent.ACTION_DOWN) {
55 |             //Update this as the offset point
56 |             mTouchOffsetPoint.x = (int)event.getX();
57 |             mTouchOffsetPoint.y = (int)event.getY();
58 |         }
59 | 
60 |         //Massage the event to be offset from the first touch
61 |         event.offsetLocation(-mTouchOffsetPoint.x + child.getWidth() / 2,
62 |                 -mTouchOffsetPoint.y + child.getHeight() / 2);
63 | 		
64 | 		return child.dispatchTouchEvent(event);		
65 | 	}
66 | }
67 | 


--------------------------------------------------------------------------------
/TouchExamples/src/com/examples/customtouch/MainActivity.java:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright (c) 2012 Wireless Designs, LLC
 3 |  *
 4 |  * See the file license.txt for copying permission.
 5 |  */
 6 | package com.examples.customtouch;
 7 | 
 8 | import android.content.Intent;
 9 | import android.os.Bundle;
10 | import android.support.v7.app.AppCompatActivity;
11 | import android.view.View;
12 | import android.widget.AdapterView;
13 | import android.widget.ArrayAdapter;
14 | import android.widget.ListView;
15 | 
16 | public class MainActivity extends AppCompatActivity implements
17 |         AdapterView.OnItemClickListener {
18 | 
19 | 	private static final String[] ITEMS = {
20 |             "Move Logger Example", "Touch Listener Example",
21 |             "Touch Delegate Example", "Touch Forward Example",
22 |             "Pan Example", "Pan Gesture Example",
23 | 	        "Multi-Touch Example", "Disable Touch Intercept"};
24 | 	
25 | 	@Override
26 | 	protected void onCreate(Bundle savedInstanceState) {
27 | 		super.onCreate(savedInstanceState);
28 |         ListView list = new ListView(this);
29 |         setContentView(list);
30 | 
31 | 		ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, ITEMS);
32 | 		list.setAdapter(adapter);
33 | 		list.setOnItemClickListener(this);
34 | 	}
35 | 
36 | 	@Override
37 | 	public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
38 |         switch (position) {
39 |             case 0: //Move Logger View
40 |                 startActivity(new Intent(this, MoveLoggerActivity.class));
41 |                 break;
42 |             case 1: //Touch Listener
43 |                 startActivity(new Intent(this, TouchListenerActivity.class));
44 |                 break;
45 |             case 2: //Touch Delegate
46 |                 startActivity(new Intent(this, TouchDelegateActivity.class));
47 |                 break;
48 |             case 3: //Touch Forwarding
49 |                 startActivity(new Intent(this, TouchForwardActivity.class));
50 |                 break;
51 |             case 4: //2D Scrolling
52 |                 startActivity(new Intent(this, TwoDimensionScrollActivity.class));
53 |                 break;
54 |             case 5: //2D GestureDetector Scrolling
55 |                 startActivity(new Intent(this, TwoDimensionGestureScrollActivity.class));
56 |                 break;
57 |             case 6: //Multi-Touch Image View
58 |                 startActivity(new Intent(this, MultitouchActivity.class));
59 |                 break;
60 |             case 7: //Disable Touch Intercept
61 |                 startActivity(new Intent(this, TouchInterceptActivity.class));
62 |             default:
63 |                 break;
64 |         }
65 |     }
66 | }
67 | 


--------------------------------------------------------------------------------
/gradlew.bat:
--------------------------------------------------------------------------------
 1 | @if "%DEBUG%" == "" @echo off
 2 | @rem ##########################################################################
 3 | @rem
 4 | @rem  Gradle startup script for Windows
 5 | @rem
 6 | @rem ##########################################################################
 7 | 
 8 | @rem Set local scope for the variables with windows NT shell
 9 | if "%OS%"=="Windows_NT" setlocal
10 | 
11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
12 | set DEFAULT_JVM_OPTS=
13 | 
14 | set DIRNAME=%~dp0
15 | if "%DIRNAME%" == "" set DIRNAME=.
16 | set APP_BASE_NAME=%~n0
17 | set APP_HOME=%DIRNAME%
18 | 
19 | @rem Find java.exe
20 | if defined JAVA_HOME goto findJavaFromJavaHome
21 | 
22 | set JAVA_EXE=java.exe
23 | %JAVA_EXE% -version >NUL 2>&1
24 | if "%ERRORLEVEL%" == "0" goto init
25 | 
26 | echo.
27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
28 | echo.
29 | echo Please set the JAVA_HOME variable in your environment to match the
30 | echo location of your Java installation.
31 | 
32 | goto fail
33 | 
34 | :findJavaFromJavaHome
35 | set JAVA_HOME=%JAVA_HOME:"=%
36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
37 | 
38 | if exist "%JAVA_EXE%" goto init
39 | 
40 | echo.
41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
42 | echo.
43 | echo Please set the JAVA_HOME variable in your environment to match the
44 | echo location of your Java installation.
45 | 
46 | goto fail
47 | 
48 | :init
49 | @rem Get command-line arguments, handling Windowz variants
50 | 
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | if "%@eval[2+2]" == "4" goto 4NT_args
53 | 
54 | :win9xME_args
55 | @rem Slurp the command line arguments.
56 | set CMD_LINE_ARGS=
57 | set _SKIP=2
58 | 
59 | :win9xME_args_slurp
60 | if "x%~1" == "x" goto execute
61 | 
62 | set CMD_LINE_ARGS=%*
63 | goto execute
64 | 
65 | :4NT_args
66 | @rem Get arguments from the 4NT Shell from JP Software
67 | set CMD_LINE_ARGS=%$
68 | 
69 | :execute
70 | @rem Setup the command line
71 | 
72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
73 | 
74 | @rem Execute Gradle
75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
76 | 
77 | :end
78 | @rem End local scope for the variables with windows NT shell
79 | if "%ERRORLEVEL%"=="0" goto mainEnd
80 | 
81 | :fail
82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
83 | rem the _cmd.exe /c_ return code!
84 | if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
85 | exit /b 1
86 | 
87 | :mainEnd
88 | if "%OS%"=="Windows_NT" endlocal
89 | 
90 | :omega
91 | 


--------------------------------------------------------------------------------
/TouchExamples/src/com/examples/customtouch/TouchInterceptActivity.java:
--------------------------------------------------------------------------------
  1 | package com.examples.customtouch;
  2 | 
  3 | import android.content.Context;
  4 | import android.os.Bundle;
  5 | import android.support.v4.view.PagerAdapter;
  6 | import android.support.v4.view.ViewPager;
  7 | import android.support.v7.app.AppCompatActivity;
  8 | import android.view.Gravity;
  9 | import android.view.LayoutInflater;
 10 | import android.view.View;
 11 | import android.view.ViewGroup;
 12 | import android.widget.BaseAdapter;
 13 | import android.widget.ListView;
 14 | import android.widget.TextView;
 15 | 
 16 | /**
 17 |  * Created by Dave Smith
 18 |  * Double Encore, Inc.
 19 |  * Date: 1/19/13
 20 |  * TouchInterceptActivity
 21 |  */
 22 | public class TouchInterceptActivity extends AppCompatActivity implements
 23 |         ViewPager.OnPageChangeListener {
 24 | 
 25 |     private ViewPager mViewPager;
 26 |     private ListView mListView;
 27 | 
 28 |     public void onCreate(Bundle savedInstanceState) {
 29 |         super.onCreate(savedInstanceState);
 30 |         setContentView(R.layout.touch_intercept);
 31 | 
 32 |         mViewPager = new ViewPager(this);
 33 |         mViewPager.setLayoutParams(new ListView.LayoutParams(ListView.LayoutParams.MATCH_PARENT,
 34 |                 getResources().getDimensionPixelSize(R.dimen.header_height)));
 35 |         mListView = (ListView) findViewById(R.id.list);
 36 | 
 37 |         mListView.addHeaderView(mViewPager);
 38 |         mListView.setAdapter(new ItemsAdapter(this));
 39 | 
 40 |         mViewPager.setOnPageChangeListener(this);
 41 |         mViewPager.setAdapter(new HeaderAdapter(this));
 42 |     }
 43 | 
 44 |     @Override
 45 |     public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) { }
 46 | 
 47 |     @Override
 48 |     public void onPageSelected(int position) { }
 49 | 
 50 |     @Override
 51 |     public void onPageScrollStateChanged(int state) {
 52 |         //While the ViewPager is scrolling, disable the ScrollView touch intercept
 53 |         // so it cannot take over and try to vertical scroll
 54 |         boolean isScrolling = state != ViewPager.SCROLL_STATE_IDLE;
 55 |         mListView.requestDisallowInterceptTouchEvent(isScrolling);
 56 |     }
 57 | 
 58 |     /*
 59 |      * Simple ListAdapter that draws a series of row items
 60 |      */
 61 |     private static class ItemsAdapter extends BaseAdapter {
 62 | 
 63 |         private LayoutInflater mInflater;
 64 | 
 65 |         public ItemsAdapter(Context context) {
 66 |             mInflater = LayoutInflater.from(context);
 67 |         }
 68 | 
 69 |         @Override
 70 |         public int getCount() {
 71 |             return 25;
 72 |         }
 73 | 
 74 |         @Override
 75 |         public Object getItem(int position) {
 76 |             return null;
 77 |         }
 78 | 
 79 |         @Override
 80 |         public long getItemId(int position) {
 81 |             return 0;
 82 |         }
 83 | 
 84 |         @Override
 85 |         public View getView(int position, View convertView, ViewGroup parent) {
 86 |             if (convertView == null) {
 87 |                 convertView = mInflater.inflate(R.layout.intercept_row, parent, false);
 88 |             }
 89 | 
 90 |             TextView v = (TextView) convertView.findViewById(R.id.text);
 91 |             v.setText(String.format("Item Row %d", position + 1));
 92 | 
 93 |             return convertView;
 94 |         }
 95 |     }
 96 | 
 97 |     /*
 98 |      * Simple PagerAdapter that just draws a small group of colored views
 99 |      */
100 |     private static class HeaderAdapter extends PagerAdapter {
101 |         private static final int[] COLORS = {0xFF555500, 0xFF770077, 0xFF007777, 0xFF777777};
102 | 
103 |         private Context mContext;
104 | 
105 |         public HeaderAdapter(Context context) {
106 |             mContext = context;
107 |         }
108 | 
109 |         @Override
110 |         public Object instantiateItem(ViewGroup container, int position) {
111 |             TextView v = new TextView(mContext);
112 |             v.setBackgroundColor(COLORS[position]);
113 |             v.setText(String.format("Header Card %d", position + 1));
114 |             v.setGravity(Gravity.CENTER);
115 |             container.addView(v);
116 | 
117 |             return v;
118 |         }
119 | 
120 |         @Override
121 |         public void destroyItem(ViewGroup container, int position, Object object) {
122 |             container.removeView((View) object);
123 |         }
124 | 
125 |         @Override
126 |         public int getCount() {
127 |             return COLORS.length;
128 |         }
129 | 
130 |         @Override
131 |         public boolean isViewFromObject(View view, Object object) {
132 |             return (view == object);
133 |         }
134 |     }
135 | }


--------------------------------------------------------------------------------
/gradlew:
--------------------------------------------------------------------------------
  1 | #!/usr/bin/env bash
  2 | 
  3 | ##############################################################################
  4 | ##
  5 | ##  Gradle start up script for UN*X
  6 | ##
  7 | ##############################################################################
  8 | 
  9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 10 | DEFAULT_JVM_OPTS=""
 11 | 
 12 | APP_NAME="Gradle"
 13 | APP_BASE_NAME=`basename "$0"`
 14 | 
 15 | # Use the maximum available, or set MAX_FD != -1 to use that value.
 16 | MAX_FD="maximum"
 17 | 
 18 | warn ( ) {
 19 |     echo "$*"
 20 | }
 21 | 
 22 | die ( ) {
 23 |     echo
 24 |     echo "$*"
 25 |     echo
 26 |     exit 1
 27 | }
 28 | 
 29 | # OS specific support (must be 'true' or 'false').
 30 | cygwin=false
 31 | msys=false
 32 | darwin=false
 33 | case "`uname`" in
 34 |   CYGWIN* )
 35 |     cygwin=true
 36 |     ;;
 37 |   Darwin* )
 38 |     darwin=true
 39 |     ;;
 40 |   MINGW* )
 41 |     msys=true
 42 |     ;;
 43 | esac
 44 | 
 45 | # Attempt to set APP_HOME
 46 | # Resolve links: $0 may be a link
 47 | PRG="$0"
 48 | # Need this for relative symlinks.
 49 | while [ -h "$PRG" ] ; do
 50 |     ls=`ls -ld "$PRG"`
 51 |     link=`expr "$ls" : '.*-> \(.*\)$'`
 52 |     if expr "$link" : '/.*' > /dev/null; then
 53 |         PRG="$link"
 54 |     else
 55 |         PRG=`dirname "$PRG"`"/$link"
 56 |     fi
 57 | done
 58 | SAVED="`pwd`"
 59 | cd "`dirname \"$PRG\"`/" >/dev/null
 60 | APP_HOME="`pwd -P`"
 61 | cd "$SAVED" >/dev/null
 62 | 
 63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 64 | 
 65 | # Determine the Java command to use to start the JVM.
 66 | if [ -n "$JAVA_HOME" ] ; then
 67 |     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
 68 |         # IBM's JDK on AIX uses strange locations for the executables
 69 |         JAVACMD="$JAVA_HOME/jre/sh/java"
 70 |     else
 71 |         JAVACMD="$JAVA_HOME/bin/java"
 72 |     fi
 73 |     if [ ! -x "$JAVACMD" ] ; then
 74 |         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
 75 | 
 76 | Please set the JAVA_HOME variable in your environment to match the
 77 | location of your Java installation."
 78 |     fi
 79 | else
 80 |     JAVACMD="java"
 81 |     which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 82 | 
 83 | Please set the JAVA_HOME variable in your environment to match the
 84 | location of your Java installation."
 85 | fi
 86 | 
 87 | # Increase the maximum file descriptors if we can.
 88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
 89 |     MAX_FD_LIMIT=`ulimit -H -n`
 90 |     if [ $? -eq 0 ] ; then
 91 |         if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
 92 |             MAX_FD="$MAX_FD_LIMIT"
 93 |         fi
 94 |         ulimit -n $MAX_FD
 95 |         if [ $? -ne 0 ] ; then
 96 |             warn "Could not set maximum file descriptor limit: $MAX_FD"
 97 |         fi
 98 |     else
 99 |         warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
100 |     fi
101 | fi
102 | 
103 | # For Darwin, add options to specify how the application appears in the dock
104 | if $darwin; then
105 |     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
106 | fi
107 | 
108 | # For Cygwin, switch paths to Windows format before running java
109 | if $cygwin ; then
110 |     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
111 |     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
112 |     JAVACMD=`cygpath --unix "$JAVACMD"`
113 | 
114 |     # We build the pattern for arguments to be converted via cygpath
115 |     ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
116 |     SEP=""
117 |     for dir in $ROOTDIRSRAW ; do
118 |         ROOTDIRS="$ROOTDIRS$SEP$dir"
119 |         SEP="|"
120 |     done
121 |     OURCYGPATTERN="(^($ROOTDIRS))"
122 |     # Add a user-defined pattern to the cygpath arguments
123 |     if [ "$GRADLE_CYGPATTERN" != "" ] ; then
124 |         OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
125 |     fi
126 |     # Now convert the arguments - kludge to limit ourselves to /bin/sh
127 |     i=0
128 |     for arg in "$@" ; do
129 |         CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
130 |         CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
131 | 
132 |         if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
133 |             eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
134 |         else
135 |             eval `echo args$i`="\"$arg\""
136 |         fi
137 |         i=$((i+1))
138 |     done
139 |     case $i in
140 |         (0) set -- ;;
141 |         (1) set -- "$args0" ;;
142 |         (2) set -- "$args0" "$args1" ;;
143 |         (3) set -- "$args0" "$args1" "$args2" ;;
144 |         (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
145 |         (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
146 |         (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
147 |         (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
148 |         (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
149 |         (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
150 |     esac
151 | fi
152 | 
153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
154 | function splitJvmOpts() {
155 |     JVM_OPTS=("$@")
156 | }
157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
159 | 
160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
161 | 


--------------------------------------------------------------------------------
/TouchExamples/src/com/examples/customtouch/widget/RotateZoomImageView.java:
--------------------------------------------------------------------------------
  1 | package com.examples.customtouch.widget;
  2 | 
  3 | import android.content.Context;
  4 | import android.graphics.Matrix;
  5 | import android.util.AttributeSet;
  6 | import android.view.MotionEvent;
  7 | import android.view.ScaleGestureDetector;
  8 | import android.widget.ImageView;
  9 | 
 10 | /**
 11 |  * Created by Dave Smith
 12 |  * Double Encore, Inc.
 13 |  * Date: 9/24/12
 14 |  * RotateZoomImageView
 15 |  */
 16 | public class RotateZoomImageView extends ImageView {
 17 |     private ScaleGestureDetector mScaleDetector;
 18 |     private Matrix mImageMatrix;
 19 |     /* Last Rotation Angle */
 20 |     private int mLastAngle = 0;
 21 |     /* Pivot Point for Transforms */
 22 |     private int mPivotX, mPivotY;
 23 | 
 24 |     public RotateZoomImageView(Context context) {
 25 |         super(context);
 26 |         init(context);
 27 |     }
 28 | 
 29 |     public RotateZoomImageView(Context context, AttributeSet attrs) {
 30 |         super(context, attrs);
 31 |         init(context);
 32 |     }
 33 | 
 34 |     public RotateZoomImageView(Context context, AttributeSet attrs, int defStyle) {
 35 |         super(context, attrs, defStyle);
 36 |         init(context);
 37 |     }
 38 | 
 39 |     private void init(Context context) {
 40 |         mScaleDetector = new ScaleGestureDetector(context, mScaleListener);
 41 | 
 42 |         setScaleType(ScaleType.MATRIX);
 43 |         mImageMatrix = new Matrix();
 44 |     }
 45 | 
 46 |     /*
 47 |      * Use onSizeChanged() to calculate values based on the view's size.
 48 |      * The view has no size during init(), so we must wait for this
 49 |      * callback.
 50 |      */
 51 |     @Override
 52 |     protected void onSizeChanged(int w, int h, int oldw, int oldh) {
 53 |         if (w != oldw || h != oldh) {
 54 |             //Shift the image to the center of the view
 55 |             int translateX = (w - getDrawable().getIntrinsicWidth()) / 2;
 56 |             int translateY = (h - getDrawable().getIntrinsicHeight()) / 2;
 57 |             mImageMatrix.setTranslate(translateX, translateY);
 58 |             setImageMatrix(mImageMatrix);
 59 |             //Get the center point for future scale and rotate transforms
 60 |             mPivotX = w / 2;
 61 |             mPivotY = h / 2;
 62 |         }
 63 |     }
 64 | 
 65 |     private ScaleGestureDetector.SimpleOnScaleGestureListener mScaleListener = new ScaleGestureDetector.SimpleOnScaleGestureListener() {
 66 |         @Override
 67 |         public boolean onScale(ScaleGestureDetector detector) {
 68 |             // ScaleGestureDetector calculates a scale factor based on whether
 69 |             // the fingers are moving apart or together
 70 |             float scaleFactor = detector.getScaleFactor();
 71 |             //Pass that factor to a scale for the image
 72 |             mImageMatrix.postScale(scaleFactor, scaleFactor, mPivotX, mPivotY);
 73 |             setImageMatrix(mImageMatrix);
 74 | 
 75 |             return true;
 76 |         }
 77 |     };
 78 | 
 79 |     /*
 80 |      * Operate on two-finger events to rotate the image.
 81 |      * This method calculates the change in angle between the
 82 |      * pointers and rotates the image accordingly.  As the user
 83 |      * rotates their fingers, the image will follow.
 84 |      */
 85 |     private boolean doRotationEvent(MotionEvent event) {
 86 |         //Calculate the angle between the two fingers
 87 |         float deltaX = event.getX(0) - event.getX(1);
 88 |         float deltaY = event.getY(0) - event.getY(1);
 89 |         double radians = Math.atan(deltaY / deltaX);
 90 |         //Convert to degrees
 91 |         int degrees = (int)(radians * 180 / Math.PI);
 92 | 
 93 |         /*
 94 |          * Must use getActionMasked() for switching to pick up pointer events.
 95 |          * These events have the pointer index encoded in them so the return
 96 |          * from getAction() won't match the exact action constant.
 97 |          */
 98 |         switch (event.getActionMasked()) {
 99 |             case MotionEvent.ACTION_DOWN:
100 |             case MotionEvent.ACTION_POINTER_DOWN:
101 |             case MotionEvent.ACTION_POINTER_UP:
102 |                 //Mark the initial angle
103 |                 mLastAngle = degrees;
104 |                 break;
105 |             case MotionEvent.ACTION_MOVE:
106 |                 // ATAN returns a converted value between -90deg and +90deg
107 |                 // which creates a point when two fingers are vertical where the
108 |                 // angle flips sign.  We handle this case by rotating a small amount
109 |                 // (5 degrees) in the direction we were traveling
110 |                 if ((degrees - mLastAngle) > 45) {
111 |                     //Going CCW across the boundary
112 |                     mImageMatrix.postRotate(-5, mPivotX, mPivotY);
113 |                 } else if ((degrees - mLastAngle) < -45) {
114 |                     //Going CW across the boundary
115 |                     mImageMatrix.postRotate(5, mPivotX, mPivotY);
116 |                 } else {
117 |                     //Normal rotation, rotate the difference
118 |                     mImageMatrix.postRotate(degrees - mLastAngle, mPivotX, mPivotY);
119 |                 }
120 |                 //Post the rotation to the image
121 |                 setImageMatrix(mImageMatrix);
122 |                 //Save the current angle
123 |                 mLastAngle = degrees;
124 |                 break;
125 |         }
126 | 
127 |         return true;
128 |     }
129 | 
130 |     @Override
131 |     public boolean onTouchEvent(MotionEvent event) {
132 |         if (event.getAction() == MotionEvent.ACTION_DOWN) {
133 |             // We don't care about this event directly, but we declare
134 |             // interest so we can get later multi-touch events.
135 |             return true;
136 |         }
137 | 
138 | 
139 |         switch (event.getPointerCount()) {
140 |             case 3:
141 |                 // With three fingers down, zoom the image
142 |                 // using the ScaleGestureDetector
143 |                 return mScaleDetector.onTouchEvent(event);
144 |             case 2:
145 |                 // With two fingers down, rotate the image
146 |                 // following the fingers
147 |                 return doRotationEvent(event);
148 |             default:
149 |                 //Ignore this event
150 |                 return super.onTouchEvent(event);
151 |         }
152 |     }
153 | }
154 | 


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/TouchExamples/src/com/examples/customtouch/widget/TwoDimensionGestureScrollView.java:
--------------------------------------------------------------------------------
  1 | package com.examples.customtouch.widget;
  2 | 
  3 | import android.content.Context;
  4 | import android.util.AttributeSet;
  5 | import android.view.GestureDetector;
  6 | import android.view.GestureDetector.SimpleOnGestureListener;
  7 | import android.view.MotionEvent;
  8 | import android.view.View;
  9 | import android.view.ViewConfiguration;
 10 | import android.widget.FrameLayout;
 11 | import android.widget.OverScroller;
 12 | 
 13 | public class TwoDimensionGestureScrollView extends FrameLayout {
 14 | 
 15 | 	private GestureDetector mDetector;
 16 | 	private OverScroller mScroller;
 17 | 	
 18 | 	/* Positions of the last motion event */
 19 | 	private float mInitialX, mInitialY;
 20 | 	/* Drag threshold */
 21 | 	private int mTouchSlop;
 22 | 	
 23 | 	public TwoDimensionGestureScrollView(Context context) {
 24 | 		super(context);
 25 | 		init(context);
 26 | 	}
 27 | 
 28 | 	public TwoDimensionGestureScrollView(Context context, AttributeSet attrs) {
 29 | 		super(context, attrs);
 30 | 		init(context);
 31 | 	}
 32 | 
 33 | 	public TwoDimensionGestureScrollView(Context context, AttributeSet attrs, int defStyle) {
 34 | 		super(context, attrs, defStyle);
 35 | 		init(context);
 36 | 	}
 37 | 
 38 | 	private void init(Context context) {
 39 | 		mDetector = new GestureDetector(context, mListener);
 40 | 		mScroller = new OverScroller(context);
 41 | 		//Get system constants for touch thresholds
 42 | 		mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
 43 | 	}
 44 | 
 45 |     /*
 46 |     * Override the measureChild... implementations to guarantee that the child view
 47 |     * gets measured to be as large as it wants to be.  The default implementation will
 48 |     * force some children to be only as large as this view.
 49 |     */
 50 |     @Override
 51 |     protected void measureChild(View child, int parentWidthMeasureSpec, int parentHeightMeasureSpec) {
 52 |         int childWidthMeasureSpec;
 53 |         int childHeightMeasureSpec;
 54 | 
 55 |         childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
 56 |         childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
 57 | 
 58 |         child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
 59 |     }
 60 | 
 61 |     @Override
 62 |     protected void measureChildWithMargins(View child, int parentWidthMeasureSpec, int widthUsed,
 63 |                                            int parentHeightMeasureSpec, int heightUsed) {
 64 |         final MarginLayoutParams lp = (MarginLayoutParams) child.getLayoutParams();
 65 | 
 66 |         final int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(
 67 |                 lp.leftMargin + lp.rightMargin, MeasureSpec.UNSPECIFIED);
 68 |         final int childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(
 69 |                 lp.topMargin + lp.bottomMargin, MeasureSpec.UNSPECIFIED);
 70 | 
 71 |         child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
 72 |     }
 73 | 	
 74 | 	@Override
 75 | 	public void computeScroll() {
 76 |         if (mScroller.computeScrollOffset()) {
 77 |             // This is called at drawing time by ViewGroup.  We use
 78 |             // this method to keep the fling animation going through
 79 |             // to completion.
 80 |             int x = mScroller.getCurrX();
 81 |             int y = mScroller.getCurrY();
 82 | 
 83 |             scrollTo(x, y);
 84 | 
 85 |             // Keep on drawing until the animation has finished.
 86 |             postInvalidate();
 87 |         }
 88 | 	}
 89 | 	
 90 | 	//Override scrollTo to do bounds checks on any scrolling request
 91 | 	@Override
 92 |     public void scrollTo(int x, int y) {
 93 |         // we rely on the fact the View.scrollBy calls scrollTo.
 94 |         if (getChildCount() > 0) {
 95 |             View child = getChildAt(0);
 96 |             x = clamp(x, getWidth() - getPaddingRight() - getPaddingLeft(), child.getWidth());
 97 |             y = clamp(y, getHeight() - getPaddingBottom() - getPaddingTop(), child.getHeight());
 98 |             if (x != getScrollX() || y != getScrollY()) {
 99 |                 super.scrollTo(x, y);
100 |             }
101 |         }
102 |     }
103 | 	
104 | 	/*
105 | 	 * Utility method to initialize the Scroller and start redrawing
106 | 	 */
107 | 	public void fling(int velocityX, int velocityY) {
108 |         if (getChildCount() > 0) {
109 |             int height = getHeight() - getPaddingBottom() - getPaddingTop();
110 |             int width = getWidth() - getPaddingLeft() - getPaddingRight();
111 |             int bottom = getChildAt(0).getHeight();
112 |             int right = getChildAt(0).getWidth();
113 | 
114 |             mScroller.fling(getScrollX(), getScrollY(), velocityX, velocityY,
115 |             		0, Math.max(0, right - width),
116 |             		0, Math.max(0, bottom - height));
117 |     
118 |             invalidate();
119 |         }
120 |     }
121 | 	
122 | 	/*
123 | 	 * Utility method to assist in doing bounds checking
124 | 	 */
125 |     private int clamp(int n, int my, int child) {
126 |         if (my >= child || n < 0) {
127 |             /* my >= child is this case:
128 |              *                    |--------------- me ---------------|
129 |              *     |------ child ------|
130 |              * or
131 |              *     |--------------- me ---------------|
132 |              *            |------ child ------|
133 |              * or
134 |              *     |--------------- me ---------------|
135 |              *                                  |------ child ------|
136 |              *
137 |              * n < 0 is this case:
138 |              *     |------ me ------|
139 |              *                    |-------- child --------|
140 |              *     |-- mScrollX --|
141 |              */
142 |             return 0;
143 |         }
144 |         if ((my+n) > child) {
145 |             /* this case:
146 |              *                    |------ me ------|
147 |              *     |------ child ------|
148 |              *     |-- mScrollX --|
149 |              */
150 |             return child-my;
151 |         }
152 |         return n;
153 |     }
154 | 
155 |     //Listener to handle all the touch events
156 |     private SimpleOnGestureListener mListener = new SimpleOnGestureListener() {
157 |         public boolean onDown(MotionEvent e) {
158 |             //Cancel any current fling
159 |             if (!mScroller.isFinished()) {
160 |                 mScroller.abortAnimation();
161 |             }
162 |             return true;
163 |         }
164 | 
165 |         public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
166 |             //Call a helper method to start the scroller animation
167 |             fling((int)-velocityX/2, (int)-velocityY/2);
168 |             return true;
169 |         }
170 | 
171 |         public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
172 |             //Any view can be scrolled by simply calling its scrollBy() method
173 |             scrollBy((int)distanceX, (int)distanceY);
174 |             return true;
175 |         }
176 |     };
177 | 
178 |     /*
179 |      * Monitor touch events passed down to the children and
180 |      * intercept as soon as it is determined we are dragging
181 |      */
182 |     @Override
183 |     public boolean onInterceptTouchEvent(MotionEvent event) {
184 |         switch (event.getAction()) {
185 |             case MotionEvent.ACTION_DOWN:
186 |                 mInitialX = event.getX();
187 |                 mInitialY = event.getY();
188 |                 //Feed the down event to the detector so it has
189 |                 // context when/if dragging begins
190 |                 mDetector.onTouchEvent(event);
191 |                 break;
192 |             case MotionEvent.ACTION_MOVE:
193 |                 final float x = event.getX();
194 |                 final float y = event.getY();
195 |                 final int yDiff = (int) Math.abs(y - mInitialY);
196 |                 final int xDiff = (int) Math.abs(x - mInitialX);
197 |                 //Verify that either difference is enough to be a drag
198 |                 if (yDiff > mTouchSlop || xDiff > mTouchSlop) {
199 |                     //Start capturing events
200 |                     return true;
201 |                 }
202 |                 break;
203 |         }
204 | 
205 |         return super.onInterceptTouchEvent(event);
206 |     }
207 | 
208 |     /*
209 |      * Feed all touch events we receive to the detector for
210 |      * processing.
211 |      */
212 |     @Override
213 |     public boolean onTouchEvent(MotionEvent event) {
214 |         return mDetector.onTouchEvent(event);
215 |     }
216 | }
217 | 


--------------------------------------------------------------------------------
/TouchExamples/src/com/examples/customtouch/widget/TwoDimensionScrollView.java:
--------------------------------------------------------------------------------
  1 | package com.examples.customtouch.widget;
  2 | 
  3 | import android.content.Context;
  4 | import android.util.AttributeSet;
  5 | import android.view.MotionEvent;
  6 | import android.view.VelocityTracker;
  7 | import android.view.View;
  8 | import android.view.ViewConfiguration;
  9 | import android.widget.FrameLayout;
 10 | import android.widget.OverScroller;
 11 | 
 12 | public class TwoDimensionScrollView extends FrameLayout {
 13 | 
 14 |     //Fling components
 15 | 	private OverScroller mScroller;
 16 |     private VelocityTracker mVelocityTracker;
 17 | 
 18 | 	/* Positions of the last motion event */
 19 | 	private float mLastTouchX, mLastTouchY;
 20 | 	/* Drag threshold */
 21 | 	private int mTouchSlop;
 22 |     /* Fling Velocity */
 23 |     private int mMaximumVelocity, mMinimumVelocity;
 24 |     /* Drag Lock */
 25 |     private boolean mDragging = false;
 26 | 
 27 | 	public TwoDimensionScrollView(Context context) {
 28 | 		super(context);
 29 | 		init(context);
 30 | 	}
 31 | 
 32 | 	public TwoDimensionScrollView(Context context, AttributeSet attrs) {
 33 | 		super(context, attrs);
 34 | 		init(context);
 35 | 	}
 36 | 
 37 | 	public TwoDimensionScrollView(Context context, AttributeSet attrs, int defStyle) {
 38 | 		super(context, attrs, defStyle);
 39 | 		init(context);
 40 | 	}
 41 | 
 42 | 	private void init(Context context) {
 43 | 		mScroller = new OverScroller(context);
 44 | 		mVelocityTracker = VelocityTracker.obtain();
 45 |         //Get system constants for touch thresholds
 46 | 		mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
 47 |         mMaximumVelocity = ViewConfiguration.get(context).getScaledMaximumFlingVelocity();
 48 |         mMinimumVelocity = ViewConfiguration.get(context).getScaledMinimumFlingVelocity();
 49 | 	}
 50 | 
 51 |     /*
 52 |      * Override the measureChild... implementations to guarantee that the child view
 53 |      * gets measured to be as large as it wants to be.  The default implementation will
 54 |      * force some children to be only as large as this view.
 55 |      */
 56 |     @Override
 57 |     protected void measureChild(View child, int parentWidthMeasureSpec, int parentHeightMeasureSpec) {
 58 |         int childWidthMeasureSpec;
 59 |         int childHeightMeasureSpec;
 60 | 
 61 |         childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
 62 |         childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);
 63 | 
 64 |         child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
 65 |     }
 66 | 
 67 |     @Override
 68 |     protected void measureChildWithMargins(View child, int parentWidthMeasureSpec, int widthUsed,
 69 |                                            int parentHeightMeasureSpec, int heightUsed) {
 70 |         final MarginLayoutParams lp = (MarginLayoutParams) child.getLayoutParams();
 71 | 
 72 |         final int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(
 73 |                 lp.leftMargin + lp.rightMargin, MeasureSpec.UNSPECIFIED);
 74 |         final int childHeightMeasureSpec = MeasureSpec.makeMeasureSpec(
 75 |                 lp.topMargin + lp.bottomMargin, MeasureSpec.UNSPECIFIED);
 76 | 
 77 |         child.measure(childWidthMeasureSpec, childHeightMeasureSpec);
 78 |     }
 79 | 	
 80 | 	@Override
 81 | 	public void computeScroll() {
 82 |         if (mScroller.computeScrollOffset()) {
 83 |             // This is called at drawing time by ViewGroup.  We use
 84 |             // this method to keep the fling animation going through
 85 |             // to completion.
 86 |             int oldX = getScrollX();
 87 |             int oldY = getScrollY();
 88 |             int x = mScroller.getCurrX();
 89 |             int y = mScroller.getCurrY();
 90 | 
 91 |             if (getChildCount() > 0) {
 92 |                 View child = getChildAt(0);
 93 |                 x = clamp(x, getWidth() - getPaddingRight() - getPaddingLeft(), child.getWidth());
 94 |                 y = clamp(y, getHeight() - getPaddingBottom() - getPaddingTop(), child.getHeight());
 95 |                 if (x != oldX || y != oldY) {
 96 |                     scrollTo(x, y);
 97 |                 }
 98 |             }
 99 | 
100 |             // Keep on drawing until the animation has finished.
101 |             postInvalidate();
102 |         }
103 | 	}
104 | 	
105 | 	//Override scrollTo to do bounds checks on any scrolling request
106 | 	@Override
107 |     public void scrollTo(int x, int y) {
108 |         // we rely on the fact the View.scrollBy calls scrollTo.
109 |         if (getChildCount() > 0) {
110 |             View child = getChildAt(0);
111 |             x = clamp(x, getWidth() - getPaddingRight() - getPaddingLeft(), child.getWidth());
112 |             y = clamp(y, getHeight() - getPaddingBottom() - getPaddingTop(), child.getHeight());
113 |             if (x != getScrollX() || y != getScrollY()) {
114 |                 super.scrollTo(x, y);
115 |             }
116 |         }
117 |     }
118 | 	
119 | 	/*
120 | 	 * Utility method to initialize the Scroller and start redrawing
121 | 	 */
122 | 	public void fling(int velocityX, int velocityY) {
123 |         if (getChildCount() > 0) {
124 |             int height = getHeight() - getPaddingBottom() - getPaddingTop();
125 |             int width = getWidth() - getPaddingLeft() - getPaddingRight();
126 |             int bottom = getChildAt(0).getHeight();
127 |             int right = getChildAt(0).getWidth();
128 |     
129 |             mScroller.fling(getScrollX(), getScrollY(), velocityX, velocityY,
130 |             		0, Math.max(0, right - width),
131 |             		0, Math.max(0, bottom - height));
132 |     
133 |             invalidate();
134 |         }
135 |     }
136 | 	
137 | 	/*
138 | 	 * Utility method to assist in doing bounds checking
139 | 	 */
140 |     private int clamp(int n, int my, int child) {
141 |         if (my >= child || n < 0) {
142 |             /* my >= child is this case:
143 |              *                    |--------------- me ---------------|
144 |              *     |------ child ------|
145 |              * or
146 |              *     |--------------- me ---------------|
147 |              *            |------ child ------|
148 |              * or
149 |              *     |--------------- me ---------------|
150 |              *                                  |------ child ------|
151 |              *
152 |              * n < 0 is this case:
153 |              *     |------ me ------|
154 |              *                    |-------- child --------|
155 |              *     |-- mScrollX --|
156 |              */
157 |             return 0;
158 |         }
159 |         if ((my+n) > child) {
160 |             /* this case:
161 |              *                    |------ me ------|
162 |              *     |------ child ------|
163 |              *     |-- mScrollX --|
164 |              */
165 |             return child-my;
166 |         }
167 |         return n;
168 |     }
169 | 
170 |     /*
171 |      * Monitor touch events passed down to the children and
172 |      * intercept as soon as it is determined we are dragging.  This
173 |      * allows child views to still receive touch events if they are
174 |      * interactive (i.e. Buttons)
175 |      */
176 |     @Override
177 |     public boolean onInterceptTouchEvent(MotionEvent event) {
178 |         switch (event.getAction()) {
179 |             case MotionEvent.ACTION_DOWN:
180 |                 //Stop any flinging in progress
181 |                 if (!mScroller.isFinished()) {
182 |                     mScroller.abortAnimation();
183 |                 }
184 |                 //Reset the velocity tracker
185 |                 mVelocityTracker.clear();
186 |                 mVelocityTracker.addMovement(event);
187 |                 //Save the initial touch point
188 |                 mLastTouchX = event.getX();
189 |                 mLastTouchY = event.getY();
190 |                 break;
191 |             case MotionEvent.ACTION_MOVE:
192 |                 final float x = event.getX();
193 |                 final float y = event.getY();
194 |                 final int yDiff = (int) Math.abs(y - mLastTouchY);
195 |                 final int xDiff = (int) Math.abs(x - mLastTouchX);
196 |                 //Verify that either difference is enough to be a drag
197 |                 if (yDiff > mTouchSlop || xDiff > mTouchSlop) {
198 |                     mDragging = true;
199 |                     mVelocityTracker.addMovement(event);
200 |                     //Start capturing events ourselves
201 |                     return true;
202 |                 }
203 |                 break;
204 |             case MotionEvent.ACTION_CANCEL:
205 |             case MotionEvent.ACTION_UP:
206 |                 mDragging = false;
207 |                 mVelocityTracker.clear();
208 |                 break;
209 |         }
210 | 
211 |         return super.onInterceptTouchEvent(event);
212 |     }
213 | 
214 |     /*
215 |      * Feed all touch events we receive to the detector for
216 |      * processing.
217 |      */
218 |     @Override
219 |     public boolean onTouchEvent(MotionEvent event) {
220 |         mVelocityTracker.addMovement(event);
221 | 
222 |         switch (event.getAction()) {
223 |             case MotionEvent.ACTION_DOWN:
224 |                 // We've already stored the initial point,
225 |                 // but if we got here a child view didn't capture
226 |                 // the event, so we need to.
227 |                 return true;
228 |             case MotionEvent.ACTION_MOVE:
229 |                 final float x = event.getX();
230 |                 final float y = event.getY();
231 |                 float deltaY = mLastTouchY - y;
232 |                 float deltaX = mLastTouchX - x;
233 |                 //Check for slop on direct events
234 |                 if (!mDragging && (Math.abs(deltaY) > mTouchSlop || Math.abs(deltaX) > mTouchSlop) ) {
235 |                     mDragging = true;
236 |                 }
237 |                 if (mDragging) {
238 |                     //Scroll the view
239 |                     scrollBy((int) deltaX, (int) deltaY);
240 |                     //Update the last touch event
241 |                     mLastTouchX = x;
242 |                     mLastTouchY = y;
243 |                 }
244 |                 break;
245 |             case MotionEvent.ACTION_CANCEL:
246 |                 mDragging = false;
247 |                 //Stop any flinging in progress
248 |                 if (!mScroller.isFinished()) {
249 |                     mScroller.abortAnimation();
250 |                 }
251 |                 break;
252 |             case MotionEvent.ACTION_UP:
253 |                 mDragging = false;
254 |                 // Compute the current velocity and start a fling if it is above
255 |                 // the minimum threshold.
256 |                 mVelocityTracker.computeCurrentVelocity(1000, mMaximumVelocity);
257 |                 int velocityX = (int)mVelocityTracker.getXVelocity();
258 |                 int velocityY = (int)mVelocityTracker.getYVelocity();
259 |                 if (Math.abs(velocityX) > mMinimumVelocity || Math.abs(velocityY) > mMinimumVelocity) {
260 |                     fling(-velocityX, -velocityY);
261 |                 }
262 |                 break;
263 |         }
264 |         return super.onTouchEvent(event);
265 |     }
266 | }
267 | 


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