RTC_WAKEUP不起作用

Question

目前，我正在处理一个广播接收器应用程序，在该应用程序中，我正在发出警报，在输入秒后将显示一条消息。我使用了RTC_WAKEUP，这意味着它应该在设备打开时显示消息，并且应该打开设备，然后在设备关闭时显示消息。我的问题是IT RTC_WAKEUP不在我的设备上，但是当设备打开时，它是正常工作的。我正在粘贴应用程序的代码。在我的应用程序中有两个类。

MainActivity

public class MainActivity extends Activity {


    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    public void startAlert(View view) {
        EditText text = (EditText) findViewById(R.id.time);
        int i = Integer.parseInt(text.getText().toString());
        Intent intent = new Intent(this, MyBroadcastReceiver.class);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(this.getApplicationContext(), 23432424, intent, 0);
        AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
        alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis()
                + (i * 1000), pendingIntent);
        Toast.makeText(this, "Alarm set in " + i + " seconds",
                Toast.LENGTH_LONG).show();
    }
}

其他的是

MyBroadcastReceiver

    public class MyBroadcastReceiver extends BroadcastReceiver {
      @Override
      public void onReceive(Context context, Intent intent) {
        Toast.makeText(context, "Jaago Mohan Pyarreee!!!!.",
            Toast.LENGTH_LONG).show();
      }
    } 

流形

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.broadcastreceiver"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk
        android:minSdkVersion="8"
        android:targetSdkVersion="15" />
    <uses-permission android:name="android.permission.VIBRATE"/>
    <uses-permission android:name="android.permission.WAKE_LOCK" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".MainActivity"
            android:label="@string/title_activity_main" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
         <receiver android:name=".MyBroadcastReceiver" >
        </receiver>
    </application>

</manifest>

Answer 1

RTC_WAKEUP不会在屏幕上切换，它所做的只是唤醒你的cpu，这样你的工作就完成了。要打开屏幕，您需要获得一个完整的唤醒锁。

PowerManager pm = (PowerManager)mContext.getSystemService(Context.POWER_SERVICE);
 PowerManager.WakeLock wl = pm.newWakeLock(PowerManager.SCREEN_DIM_WAKE_LOCK
                                      | PowerManager.ON_AFTER_RELEASE,
                                      "wakeup");
 wl.acquire();
 // ... do work...
//show toask
 wl.release();

Answer 2

你在你的申报单上有许可吗？

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

Answer 3

修理你的舱单。而不是

<receiver android:name="MyBroadcastReceiver" >

你需要：

<receiver android:name=".MyBroadcastReceiver" >