Android--GestureOverlayView,手勢識別

打開模擬器，打開軟件：

點擊Add gesture 新建手勢：

這個例子我們用兩個手勢

將手勢識別庫從sdcard卡中導出，在res文件下新建raw文件，將導出的gesture文件粘貼到raw文件下

Java代碼：

package cn.mrzhu.test25;

import java.util.ArrayList;

import Android.app.Activity;
import android.gesture.Gesture;
import android.gesture.GestureLibraries;
import android.gesture.GestureLibrary;
import android.gesture.GestureOverlayView;
import android.gesture.GestureOverlayView.OnGesturePerformedListener;
import android.gesture.Prediction;
import android.os.Bundle;
import android.widget.Toast;

/**
 * 手勢識別
 * @author root
 *
 */
public class Main extends Activity {
 private GestureOverlayView gov;
 private GestureLibrary gl;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        //從資源文件中將手勢庫加載進來
        gl = GestureLibraries.fromRawResource(this, R.raw.gestures);
        gl.load();
        //從xml中取出GestureOverlayView控件
        gov = (GestureOverlayView) findViewById(R.id.gestureOverlayView1);
        //為GestureOverlayView控件添加監聽
        gov.addOnGesturePerformedListener(new OnGesturePerformedListener() {
   @Override
   public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture) {
    //識別手勢，返回一個類型為Prediction的列表
    ArrayList<Prediction> list = gl.recognize(gesture);
    Prediction pre = list.get(0);
    //如果匹配度大於1，表示可以識別，否則提示無法識別
    if(pre.score > 1){
     //判斷名字是否與手勢庫的名字相同
     if(pre.name.equals("haha")){
      Toast.makeText(Main.this, "Recognize the haha", Toast.LENGTH_SHORT).show();
     }else if(pre.name.equals("xin")){
      Toast.makeText(Main.this, "Recognize the xin", Toast.LENGTH_SHORT).show();
     }
    }else{
     Toast.makeText(Main.this, "Can't Recognize", Toast.LENGTH_SHORT).show();
    }
   }
  });
    }
}

main.xml代碼：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical" >

    <android.gesture.GestureOverlayView
        android:id="@+id/gestureOverlayView1"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent" >
    </android.gesture.GestureOverlayView>

</LinearLayout>

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