Google glass GDK - 手势操作

1     // 创建卡片
2     private Card mCard;
3     // 手势检测器
4     private GestureDetector mGestureDetector;

1     protected void onCreate(Bundle savedInstanceState) {
2         super.onCreate(savedInstanceState);
3         //setContentView(R.layout.activity_main);
4         mCard = new Card(this);
5         mGestureDetector = createGestureDetector(this);
6         mCard.setText("手势识别");
7         setContentView(mCard.getView());
8     }

 1     private GestureDetector createGestureDetector(Context context){
 2         GestureDetector gestureDetector = new GestureDetector(context);
 3         //
 4         // 基本的按键事件
 5         //
 6         gestureDetector.setBaseListener(new GestureDetector.BaseListener() {
 7             @Override
 8             public boolean onGesture(Gesture arg0) {
 9                 // TODO Auto-generated method stub
10                 // 轻拍
11                 if(arg0 == Gesture.TAP){
12                     mCard.setText("一个手指轻拍=>播放|暂停");
13                 }else if(arg0 == Gesture.TWO_TAP){
14                     // 双指轻拍
15                     mCard.setText("两个手指轻拍=>弹出菜单");
16                 }else if(arg0 == Gesture.LONG_PRESS){
17                     // 长按
18                     mCard.setText("长按=>退出");
19                 }else if(arg0 == Gesture.SWIPE_LEFT){
20                     mCard.setText("向后=>上一首");
21                 }else if(arg0 == Gesture.SWIPE_RIGHT){
22                     mCard.setText("向前=>下一首");
23                 }else if(arg0 == Gesture.SWIPE_DOWN){
24                     mCard.setText("向下=>后台运行");
25                 }else{
26                     return false;
27                 }
28                 setContentView(mCard.getView());
29                 return true;
30             }
31         });
32         //
33         // 监听手指数
34         //
35         gestureDetector.setFingerListener(new GestureDetector.FingerListener() {
36             
37             @Override
38             public void onFingerCountChanged(int arg0, int arg1) {
39                 // TODO Auto-generated method stub
40                 System.out.println("手指:原先=" + arg0 + " 当前:" + arg1);
41             }
42         });
43         //
44         // 滚动事件
45         //
46         gestureDetector.setScrollListener(new GestureDetector.ScrollListener() {
47             
48             @Override
49             public boolean onScroll(float arg0, float arg1, float arg2) {
50                 // TODO Auto-generated method stub
51                 System.out.println("滚动:arg0 = " + arg0 + " arg1=" + arg1 + " arg2="+ arg2);
52                 return false;
53             }
54         });
55         return gestureDetector;
56     }

1     @Override
2     public boolean onGenericMotionEvent(MotionEvent event){
3         if(mGestureDetector != null){
4             return mGestureDetector.onMotionEvent(event);
5         }
6         return false;
7     }