屏幕监听

在移动端app层监听屏幕的灭亮状态：

package com.xxx.xxx.Tools;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.PowerManager;

/**
*
* 屏幕监听
*
* 作者：杨 on 2016.01.04 16:15
* 邮箱：ytang_1437@163.com
*/
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();
}
}

在需要监听的activity中注册，如onCreate中调用begin：

screenListener = new ScreenListener(this);
screenListener.begin(new ScreenListener.ScreenStateListener() {

@Override
public void onUserPresent() { //解锁
Log.i(TAG, "onUserPresent");

}

@Override
public void onScreenOn() { //亮屏
Log.i(TAG, "onScreenOn");
}

@Override
public void onScreenOff() { //灭屏
Log.i(TAG, "onScreenOff");

}
});

在销毁时注销即可。