package com.example.test;

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;

public class MainActivity extends Activity {

// 1.聲明控件

GestureOverlayView gestureOverlayView;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

// 2.綁定控件

gestureOverlayView = (GestureOverlayView) findViewById(R.id.gestureOverlayView1);

/*

* 3.找到剛才預設定的手勢文件 4.加載那個手勢文件中的所有手勢 5.匹配 識別

*/

// 從資源中將手勢文件加載進來

final GestureLibrary library = GestureLibraries.fromRawResource(MainActivity.this, R.raw.gestures);

library.load();

// 6.添加監聽器

gestureOverlayView.addOnGesturePerformedListener(new OnGesturePerformedListener() {

@Override

public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture) {

// TODO Auto-generated method stub

// 讀出手勢中內容 識別手勢

ArrayList<Prediction> myArrayList = library.recognize(gesture);// 返回的是集合

// 遍歷手勢

Prediction prediction = myArrayList.get(0);

// prediction——相似度

if (prediction.score >= 2.0) {//值越小，越好識別（Ps：取值范圍：0.00——10.00）

if (prediction.name.equals("exit")) {

finish();

}

else if (prediction.name.equals("next")) {

Toast.makeText(MainActivity.this, "播放下一首", Toast.LENGTH_SHORT).show();

}

else if (prediction.name.equals("pervious")) {

Toast.makeText(MainActivity.this, "播放上一首", Toast.LENGTH_SHORT).show();

}

} else {

Toast.makeText(MainActivity.this, "沒有該手勢", Toast.LENGTH_SHORT).show();

}

}

});

}

}

只有提示沒有手勢……，貌似進不了if里面去