android手势-创新互联

一丶首先创建一个手势库

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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