Android--GestureOverlayView,手势识别

Android--GestureOverlayView,手势识别

打开模拟器，打开软件：

点击Add gesture 新建手势：

这个例子我们用两个手势

将手势识别库从sdcard卡中导出，在res文件下新建raw文件，将导出的gesture文件粘贴到raw文件下

Java代码：

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;

/**
 * 手势识别
 * @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);
        //从资源文件中将手势库加载进来
        gl = GestureLibraries.fromRawResource(this, R.raw.gestures);
        gl.load();
        //从xml中取出GestureOverlayView控件
        gov = (GestureOverlayView) findViewById(R.id.gestureOverlayView1);
        //为GestureOverlayView控件添加监听
        gov.addOnGesturePerformedListener(new OnGesturePerformedListener() {
   @Override
   public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture) {
    //识别手势，返回一个类型为Prediction的列表
    ArrayList<Prediction> list = gl.recognize(gesture);
    Prediction pre = list.get(0);
    //如果匹配度大于1，表示可以识别，否则提示无法识别
    if(pre.score > 1){
     //判断名字是否与手势库的名字相同
     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代码：

<?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>