Android手機(jī)搖一搖的實(shí)現(xiàn)SensorEventListener 看實(shí)例 package com.example.shakeactivity;import android.content.Context; import android.hardware.Sensor; import android.hardware.SensorEvent; import android.hardware.SensorEventListener; import android.hardware.SensorManager;public class ShakeListener implements SensorEventListener {/* Sensor 說(shuō)明 * Sensor.TYPE_ACCELEROMETER 加速度感應(yīng)檢測(cè) * Sensor.TYPE_MAGNETIC_FIELD 磁場(chǎng)感應(yīng)檢測(cè) * Sensor.TYPE_ORIENTATION 方位感應(yīng)檢測(cè) * Sensor.TYPE_GYROSCOPE 回轉(zhuǎn)儀感應(yīng)檢測(cè) * Sensor.TYPE_LIGHT 亮度感應(yīng)檢測(cè) * Sensor.TYPE_PRESSURE 壓力感應(yīng)檢測(cè) * Sensor.TYPE_TEMPERATURE 溫度感應(yīng)檢測(cè) * Sensor.TYPE_PROXIMITY 接近感應(yīng)檢測(cè)* SENSOR_DELAY_FASTEST 最低延遲，一般不是特別敏感的處理不推薦使用，該種模式可能造成手機(jī)電力大量消耗，由于傳遞的為原始數(shù)據(jù)，算法不處理好將會(huì)影響游戲邏輯和UI的性能，所以不推薦使用。 * SENSOR_DELAY_GAME 游戲延遲，一般絕大多數(shù)的實(shí)時(shí)性較高的游戲都使用該級(jí)別 * SENSOR_DELAY_NORMAL 標(biāo)準(zhǔn)延遲，對(duì)于一般的益智類(lèi)或EASY級(jí)別的游戲可以使用，但過(guò)低的采樣率可能對(duì)一些賽車(chē)類(lèi)游戲有跳幀現(xiàn)象。 * SENSOR_DELAY_UI 用戶(hù)界面延遲，一般對(duì)于屏幕方向自動(dòng)旋轉(zhuǎn)使用，相對(duì)節(jié)省電能和邏輯處理，一般游戲開(kāi)發(fā)中我們不使用。 */ private static final int FORCE_THRESHOLD = 350; private static final int TIME_THRESHOLD = 100; private static final int SHAKE_TIMEOUT = 500; private static final int SHAKE_DURATION = 1000; private static final int SHAKE_COUNT = 6;private SensorManager mSensorMgr; private float mLastX = -1.0f, mLastY = -1.0f, mLastZ = -1.0f; private long mLastTime; private OnShakeListener mShakeListener; private Context mContext; private int mShakeCount = 0; private long mLastShake; private long mLastForce;public interface OnShakeListener { public void onShake(); //public void onShakeHorizontal(); //public void onShakeVertical(); }public ShakeListener(Context context) { mContext = context; resume(); }public void setOnShakeListener(OnShakeListener listener) { mShakeListener = listener; }public void resume() { mSensorMgr = (SensorManager) mContext .getSystemService(Context.SENSOR_SERVICE); if (mSensorMgr == null) { throw new UnsupportedOperationException("Sensors not supported"); }boolean supported = mSensorMgr.registerListener(this, mSensorMgr .getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_UI); if (!supported) { mSensorMgr.unregisterListener(this); throw new UnsupportedOperationException( "Accelerometer not supported"); } }public void pause() { if (mSensorMgr != null) { mSensorMgr.unregisterListener(this); mSensorMgr = null; } }@Override public void onAccuracyChanged(Sensor sensor, int accuracy) {}@SuppressWarnings("deprecation") @Override public void onSensorChanged(SensorEvent event) {if (event.sensor.getType() != Sensor.TYPE_ACCELEROMETER) { return; }long now = System.currentTimeMillis();if ((now - mLastForce) > SHAKE_TIMEOUT) { mShakeCount = 0; }if ((now - mLastTime) > TIME_THRESHOLD) { long diff = now - mLastTime; float speed = Math.abs(event.values[SensorManager.DATA_X] + event.values[SensorManager.DATA_Y] + event.values[SensorManager.DATA_Z] - mLastX - mLastY - mLastZ) / diff * 10000; if (speed > FORCE_THRESHOLD) { if ((++mShakeCount >= SHAKE_COUNT) && (now - mLastShake > SHAKE_DURATION)) { mLastShake = now; mShakeCount = 0; if (mShakeListener != null) { mShakeListener.onShake(); } } mLastForce = now; } mLastTime = now; mLastX = event.values[SensorManager.DATA_X]; mLastY = event.values[SensorManager.DATA_Y]; mLastZ = event.values[SensorManager.DATA_Z]; } } } 將上面的內(nèi)容保存為ShakeActivity.java文件，在 MainActivity.java 使用以下方法 ShakeListener mShaker = new ShakeListener(this); mShaker.setOnShakeListener(new ShakeListener.OnShakeListener() { public void onShake() { // action while shaking setTextView("shaked"); } });

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