Android实现摇一摇功能

来源：互联网发布：php断点续传上传编辑：程序博客网时间：2024/06/05 18:51
做过一个小项目，其中实现了摇一摇功能和刮一刮功能还有播放背景音乐等
摇一摇功能主要用到加速度传感器：Sensor.TYPE_ACCELEROMETER
摇一摇功能主要是监听手机加速度变化，当超过设定的某一值时，即触发事件。
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/**
 * FileName: MainActivity.java
 * @desc 该类是用于显示摇一摇界面
 * @author HTP
 * @Date    20140311
 * @version 1.00 
 */
publicclass MainActivity extendsActivity implementsOnClickListener {
    privateTabHost tabHost;
    privateMusicNameDao dao;
    // private ImageButton bt_setMusic;
    // 声音
    privateMediaPlayer mediaPlayer;
    // 显示摇一摇出现的内容
    privateTextView tv;
    // 要显示在tv中的内容
    privateString msentence;
    // 通过类Sentence可得到摇一摇显示的内容
    privateSentence sentence;
    // 显示标签“刮一刮”
    privateTextView tv_rubbler;
    // 重力感应管理器
    privateSensorManager sensorManager;
    // 震动控件
    privateVibrator vibrator;
    // 标签
    privatestatic final String TAG = "MainActivity";
    privatestatic final int SENSOR_SHAKE = 10;
 
    // private Intent musicIntent = new Intent("com.angel.Android.MUSIC");
    /** Called when the activity is first created. */
    @Override
    publicvoid onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        dao = newMusicNameDao(this);
        Uri musicUri = Uri.parse("android.resource://com.example.romance/raw/"
                + dao.getName());
 
        mediaPlayer = MediaPlayer.create(this, musicUri);
        //Toast.makeText(MainActivity.this, musicUri.toString(), 1).show();
        mediaPlayer.start();// 播放音乐
        mediaPlayer.setLooping(true);// 设置循环
        dao = newMusicNameDao(this);
        // startService(musicIntent);
        tv_rubbler = (TextView) findViewById(R.id.tv_rubber);
        tv_rubbler.setOnClickListener(this);
        // bt_setMusic.setOnClickListener(this);
 
        sentence = newSentence();
        // Uri musicUri = Uri.parse("/sdcard/ttpod/song/虹之间.mp3");
        // 获取res/raw/下的音乐路径
         
        tv = (TextView) findViewById(R.id.tv_text);// 关联要显示的TextView空间
        sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);
        vibrator = (Vibrator) getSystemService(VIBRATOR_SERVICE);
    }
 
    @Override
    protectedvoid onResume() {
        super.onResume();
        if(sensorManager != null) {// 注册监听器
            sensorManager.registerListener(sensorEventListener,
                    sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER),
                    SensorManager.SENSOR_DELAY_NORMAL);
            // 第一个参数是Listener，第二个参数是所得传感器类型，第三个参数值获取传感器信息的频率
        }
    }
 
    @Override
    protectedvoid onPause() {
        super.onPause();
        if(sensorManager != null) {// 取消监听器
            sensorManager.unregisterListener(sensorEventListener);
        }
    }
 
    /**
     * 重力感应监听
     */
    privateSensorEventListener sensorEventListener = newSensorEventListener() {
        @Override
        publicvoid onSensorChanged(SensorEvent event) {
            // 传感器信息改变时执行该方法
            float[] values = event.values;
            floatx = values[0];// x轴方向的重力加速度，向右为正
            floaty = values[1];// y轴方向的重力加速度，向前为正
            floatz = values[2];// z轴方向的重力加速度，向上为正
            Log.i(TAG,"x轴方向的重力加速度"+ x + "；y轴方向的重力加速度"+ y + "；z轴方向的重力加速度"+ z);
            // 一般在这三个方向的重力加速度达到40就达到了摇晃手机的状态。
            intmedumValue = 18;
            if(Math.abs(x) > medumValue && Math.abs(y) > medumValue
                    || Math.abs(y) > medumValue && Math.abs(z) > medumValue
                    || Math.abs(x) > medumValue && Math.abs(z) > medumValue
                    ) {
                vibrator.vibrate(200);
                Message msg = newMessage();
                msg.what = SENSOR_SHAKE;
                handler.sendMessage(msg);
            }
        }
 
        @Override
        publicvoid onAccuracyChanged(Sensor sensor, intaccuracy) {
        }
    };
    /**
     * 动作执行
     */
    Handler handler = newHandler() {
        @Override
        publicvoid handleMessage(Message msg) {
            super.handleMessage(msg);
            switch(msg.what) {
            caseSENSOR_SHAKE:
                msentence = sentence.getSentence();// 得到随机的句子
                // Toast.makeText(MainActivity.this, msentence, 1).show();
                tv.setText(msentence);// 将得到的句子显示在textview上
                // Log.i(TAG, "检测到摇晃，执行操作！");
                break;
            }
        }
    };
 
    @Override
    protectedvoid onDestroy() {
        // TODO Auto-generated method stub
        super.onDestroy();
        mediaPlayer.stop();// 退出时停止音乐
 
    }
 
    /**
     * 键盘事件，当按下back键的时候询问是否再按一次退出程序
     */
    // 退出时间
    privatelong exitTime = 0;
 
    @Override
    publicboolean onKeyDown(intkeyCode, KeyEvent event) {
        if(keyCode == KeyEvent.KEYCODE_BACK
                && event.getAction() == KeyEvent.ACTION_DOWN) {
            if((System.currentTimeMillis() - exitTime) > 2000) {
                Toast.makeText(getApplicationContext(),"再按一次退出程序",
                        Toast.LENGTH_SHORT).show();
                exitTime = System.currentTimeMillis();
            }else{
                finish();
                System.exit(0);
 
            }
            returntrue;
        }
        returnsuper.onKeyDown(keyCode, event);
    }
 
    /**
     * 按钮事件监听
     */
    @Override
    publicvoid onClick(View v) {
        // TODO Auto-generated method stub
        switch(v.getId()) {
        // 当按下按钮，将切换到刮一刮页面
        caseR.id.tv_rubber: {
            Toast.makeText(MainActivity.this,"刮一刮",1).show();
            Intent rubblerIntent = newIntent(MainActivity.this,
                    RubblerAct.class);
            startActivity(rubblerIntent);
            break;
        }
        default:
            break;
        }
    }
 
}

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