1 public class MainActivity extends Activity {
 2     ImageView imageView;
 3     GestureDetector myDetector;
 4
 5     class myGestureListenner extends SimpleOnGestureListener {
 6         @Override
 7         // e1表示起始事件，e2表示末尾事件，每个事件都含有坐标属性。通过起止事件的相对位置，可以判断是从左往右滑动还是从右往左滑动。
 8         public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,
 9                 float velocityY) {
10             // TODO Auto-generated method stub
11             if (e1.getX() - e2.getX() > 50) {
12                 Toast.makeText(MainActivity.this, "从右边往左边滑动！", 0).show();
13
14             } else if (e2.getX() - e1.getX() > 50) {
15                 Toast.makeText(MainActivity.this, "从左边往右边滑动！", 0).show();
16             }
17             return super.onFling(e1, e2, velocityX, velocityY);
18         }
19
20     }
21
22     @Override
23     protected void onCreate(Bundle savedInstanceState) {
24         super.onCreate(savedInstanceState);
25         setContentView(R.layout.fragment_main);
26         imageView = (ImageView) findViewById(R.id.image);
27         myDetector = new GestureDetector(new myGestureListenner());
28         imageView.setOnTouchListener(new OnTouchListener() {
29
30             @Override
31             public boolean onTouch(View v, MotionEvent event) {
32                 // TODO Auto-generated method stub
33                 // 捕获触摸屏幕的Event事件
34                 myDetector.onTouchEvent(event);
35
36                 return true;
37             }
38         });
39     }
40
41 }

 1 public class MainActivity extends ActionBarActivity {
 2     GestureOverlayView gestureOverlayView;
 3
 4     @Override
 5     protected void onCreate(Bundle savedInstanceState) {
 6         super.onCreate(savedInstanceState);
 7         setContentView(R.layout.fragment_main);
 8         gestureOverlayView = (GestureOverlayView) findViewById(R.id.gestureOverlayView1);
 9         // 1.找到预设定的手势文件
10         // 2.加载那个手势文件中的所有手势
11         // 3.匹配，识别
12
13         // 从资源中将手势库文件加载进来
14         final GestureLibrary library = GestureLibraries.fromRawResource(
15                 MainActivity.this, R.raw.gestures);
16         library.load();
17         gestureOverlayView
18                 .addOnGesturePerformedListener(new OnGesturePerformedListener() {
19
20                     @Override
21                     public void onGesturePerformed(GestureOverlayView overlay,
22                             Gesture gesture) {
23                         // TODO Auto-generated method stub
24                         // 读出手势库中内容 识别手势
25                         ArrayList<Prediction> mygesture = library
26                                 .recognize(gesture);
27                         Prediction prediction = mygesture.get(0);
28                         if (prediction.score >= 5.0) {
29                             if (prediction.name.equals("exit")) {
30                                 finish();
31                             }
32                             if (prediction.name.equals("next")) {
33                                 Toast.makeText(MainActivity.this, "下一首", 0)
34                                         .show();
35                             }
36                             if (prediction.name.equals("previouse")) {
37                                 Toast.makeText(MainActivity.this, "上一首", 0)
38                                         .show();
39                             }
40                         } else {
41                             Toast.makeText(MainActivity.this, "没有该手势", 0)
42                                     .show();
43                         }
44
45                     }
46                 });
47
48     }
49
50 }