Java 活动警报播放时，索尼Xperia P中的屏幕不会打开

我的安卓闹钟程序在很多三星和HTC设备上都不起作用；在手动打开屏幕之前，它不会打开屏幕，也不会播放报警。 这个问题出现在索尼Xperia P和华为荣誉手机中。。。 我在代码中使用任何我认为可以解决我的问题的东西，但它不是固定的！：(

这是我的代码：

try {

    // baraye roshan kardane safe va roshan negah dashtane oon dar Huawei honor
    PowerManager mPowerManager = (PowerManager) PlayAlarmActivity.this.getSystemService(Context.POWER_SERVICE);
    mWakeLock = mPowerManager.newWakeLock((PowerManager.FULL_WAKE_LOCK 
         | PowerManager.ACQUIRE_CAUSES_WAKEUP), "Power Manager");                   
    mWakeLock.acquire();                    
    Log.i("Unlock Screen", "1");

} catch (Exception e) {
    Log.e("Error in playalarmactivity for unlock screen 1 ...", e.toString());
}           

try {
    // Set the window to keep screen on
    getWindow().addFlags(WindowManager.LayoutParams.FLAG_TURN_SCREEN_ON);
    getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
    getWindow().addFlags(WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
    getWindow().addFlags(WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD);
    Log.i("Unlock Screen", "2");

} catch (Exception e) {
    Log.e("Error in playalarmactivity for unlock screen 2 ...", e.toString());
}

try {
    // baraye baz kardane lock dar gooshihayi mesle sonye Masoud!!! :D
    km = (KeyguardManager) PlayAlarmActivity.this.getSystemService(Context.KEYGUARD_SERVICE);
    kl = km.newKeyguardLock("MyKeyguardLock");
    kl.disableKeyguard();                     
    Log.i("Unlock Screen", "3");

} catch (Exception e) {
    Log.e("Error in playalarmactivity for unlock screen 3 ...", e.toString());
}

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尝试将此权限添加到您的

AndroidManifest.xml

：

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

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谢谢，我使用了此权限。请再次阅读我的问题。我的应用程序工作正常，但并非在所有Android设备中都能正常运行…：(