//保持手機常亮並解鎖

private void wakeAndUnlock() {
    //獲取電源管理器物件
PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);

    //獲取PowerManager.WakeLock物件，後面的引數|表示同時傳入兩個值，最後的是除錯用的Tag
PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.ACQUIRE_CAUSES_WAKEUP | PowerManager.SCREEN_BRIGHT_WAKE_LOCK
 
, "bright");

    //點亮螢幕
wl.acquire();

    //得到鍵盤鎖管理器物件
KeyguardManager km = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE);
    kl = km.newKeyguardLock("unLock");

    //解鎖
kl.disableKeyguard();

}

//檢測是否鎖屏
private boolean isScreenLocked() {
    KeyguardManager keyguardManager = (KeyguardManager) getSystemService(Context.KEYGUARD_SERVICE
 
);
    return keyguardManager.inKeyguardRestrictedInputMode();
}