锁屏和亮屏控制

 //判断是否锁屏
KeyguardManager mKeyguardManager = (KeyguardManager) getSystemService(KEYGUARD_SERVICE);
boolean isLock = (mKeyguardManager.inKeyguardRestrictedInputMode();
if (isLock) {
    //锁屏
} else {
    //不锁屏
}

//如果为true，则表示屏幕“亮”了，否则屏幕“暗”了
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
boolean isLight = pm.isScreenOn();
if (isLight) {
        //亮
    } else {
        //暗
    }

//强制亮屏
private PowerManager.WakeLock mWakelock;
mWakelock = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP |
                    PowerManager.SCREEN_DIM_WAKE_LOCK, "target");
mWakelock.acquire();  //强制亮屏
// mWakelock.release();  释放控制