android手势-创新互联

一丶首先创建一个手势库

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二丶手势实例

  1. 布局文件:

    在布局文件中有:

           android:id="@+id/gv"
           android:layout_width="match_parent"
           android:layout_height="match_parent"
           android:background="#000000"
           android:gestureStrokeWidth="10"
           android:gestureColor="#ff0000"
           />

  2. MainActivity中

    public class MainActivity extends Activity {

       private GestureOverlayView gv;//手势控件
       private GestureLibrary gestureLibrary;//加载手势库
       private boolean loadStatus;
       @Override
       protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
          //拿到控件
          gv = (GestureOverlayView) findViewById(R.id.gv);
          //创建加载手势库的工具
          gestureLibrary = GestureLibraries.fromRawResource(this, R.raw.gestures);
          //加载手势库
          loadStatus = gestureLibrary.load();
          //给gv加一个监听器
          //监听一种手势
          gv.addOnGesturePerformedListener(new OnGesturePerformedListener() {

             @Override
             public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture) {
                //手势加载成功
                if(loadStatus){
                   //识别手势 Prediction(手势相似度)
                   ArrayList pres = gestureLibrary.recognize(gesture);
                   if(!pres.isEmpty()){
                      Prediction pre = pres.get(0);
                      if(pre.score > 6){
                         if("close".equals(pre.name)){
                            finish();
                         }else if("tel".equals(pre.name)){
                            //打电话
                            Intent intent = new Intent();
                            intent.setAction(Intent.ACTION_CALL);
                            intent.setData(Uri.parse("tel://110"));
                            startActivity(intent);
                         }else if("right".equals(pre.name)){
                            Toast.makeText(getApplicationContext(), "正确", 0).show();
                         }
                      }else{
                         Toast.makeText(getApplicationContext(), "手势不匹配", 0).show();
                      }
                   }else{
                      Toast.makeText(MainActivity.this, "手势库加载失败", 0).show() ;
                   }

                }
             }
          });
       }
    }

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