Android监听屏幕屏幕锁屏与解锁

/**
* 创建一个监听器类 监听android锁屏与解锁事件
*/
public class ScreenListener {
private Context mContext;
private ScreenBroadcastReceiver mScreenReceiver;
private ScreenStateListener mScreenStateListener;

public ScreenListener(Context context) {
mContext = context;
mScreenReceiver = new ScreenBroadcastReceiver();
}

/**
* screen状态广播接收者
*/
private class ScreenBroadcastReceiver extends BroadcastReceiver {
private String action = null;

@Override
public void onReceive(Context context, Intent intent) {
action = intent.getAction();
if (Intent.ACTION_SCREEN_ON.equals(action)) { // 开屏
mScreenStateListener.onScreenOn();
} else if (Intent.ACTION_SCREEN_OFF.equals(action)) { // 锁屏
mScreenStateListener.onScreenOff();
} else if (Intent.ACTION_USER_PRESENT.equals(action)) { // 解锁
mScreenStateListener.onUserPresent();
}
}
}

/**
* 开始监听screen状态
*
* @param listener
*/
public void begin(ScreenStateListener listener) {
mScreenStateListener = listener;
registerListener();
getScreenState();
}

/**
* 获取screen状态
*/
private void getScreenState() {
PowerManager manager = (PowerManager) mContext
.getSystemService(Context.POWER_SERVICE);
if (manager.isScreenOn()) {
if (mScreenStateListener != null) {
mScreenStateListener.onScreenOn();
}
} else {
if (mScreenStateListener != null) {
mScreenStateListener.onScreenOff();
}
}
}

/**
* 停止screen状态监听
*/
public void unregisterListener() {
mContext.unregisterReceiver(mScreenReceiver);
}

/**
* 启动screen状态广播接收器
*/
private void registerListener() {
IntentFilter filter = new IntentFilter();
filter.addAction(Intent.ACTION_SCREEN_ON);
filter.addAction(Intent.ACTION_SCREEN_OFF);
filter.addAction(Intent.ACTION_USER_PRESENT);
mContext.registerReceiver(mScreenReceiver, filter);
}

public interface ScreenStateListener {// 返回给调用者屏幕状态信息
public void onScreenOn();

public void onScreenOff();

public void onUserPresent();
}
}

在需要监听解锁或锁屏的Activity或者Fragment里边添加

ScreenListener mScreenListener;

在初始化onCreate或者 onCreateView里边初始化监听器

mScreenListener=new ScreenListener(this);mScreenListener.begin(new ScreenListener.ScreenStateListener() {@Overridepublic void onUserPresent() {DebugLog.i("onUserPresent");}@Overridepublic void onScreenOn() {DebugLog.i("onScreenOn");}@Overridepublic void onScreenOff() {DebugLog.i("onScreenOff");...}});

注意监听的Activity或者Fragment销毁时，要取消监听广播事件

@Overridepublic void onDestroy(){super.onDestroy();DebugLog.i("onDestroy");mScreenListener.unregisterListener();}

最后注意在AndroidManifest.xml里边注册权限

<uses-permission android:name="android.permission.RECEIVE_USER_PRESENT" />