AlarmManager不启动BroadcastReceiver

我正在尝试使用BroadcastReceiver和AlarmManager设置一次性警报。我不知道为什么它不工作。我究竟做错了什么？我没有例外，没有关于日志，没有来自IDE的建议，一切似乎都很好，但我的BroadcastReceiver中的onReceive方法永远不会被调用。AlarmManager不启动BroadcastReceiver

public void setAlarm(Context mContext) { 
    AlarmManager alarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE); 

    Intent intent = new Intent(mContext, AlarmReceiver.class); 
    PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, 505151550 ,intent, PendingIntent.FLAG_UPDATE_CURRENT); 

    Calendar cal = Calendar.getInstance(); 
    cal.add(Calendar.SECOND, 20); 

    alarmManager.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), pendingIntent); 
    Log.d("alarm",cal.getTime().toString()); 
}

我从活动调用它：

new MyManager().setAlarm(this);

，但我自己也尝试：new MyManager().setAlarm(MyActivity.this);在AndroidManifest.xml

public class AlarmReceiver extends BroadcastReceiver { 
@Override 
public void onReceive(Context context, Intent intent) { 
    Log.d("alarm","got into alarm receiver"); 
}}

：

<receiver android:name="com.example.AlarmReceiver"></receiver>

，但我也试过

<receiver android:name=".AlarmReceiver"></receiver>

来源

2014-10-08 wttek

我只是测试你的代码，工作正常，你可以给我们进一步的代码？所以我们可以捕捉到正在发生的事情 – 2014-10-08 17:37:58

试试这样：30秒后会发出警报。

public class TestAlarmManager extends Activity{ 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 

     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_main); 
     setAlarm(getApplicationContext()); 

    } 
    public void setAlarm(Context mContext) { 

     Intent intent = new Intent(this, AlarmReceiver.class); 
     PendingIntent pendingIntent = PendingIntent.getBroadcast( 
             this.getApplicationContext(), 234324243, intent, 0); 
     AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE); 
     alarmManager.set(AlarmManager.RTC_WAKEUP, System.currentTimeMillis() 
             + (30 * 1000), pendingIntent); 
     Toast.makeText(this, "Alarm set in " + 30 + " seconds",Toast.LENGTH_LONG).show(); 
    } 

}

AlarmReceiver.java

public class AlarmReceiver extends BroadcastReceiver { 

    @Override 
    public void onReceive(Context context, Intent arg1) { 
     Log.e("alarm","got into alarm receiver"); 
     Toast.makeText(context, "Alarm Started..", Toast.LENGTH_LONG).show(); 
    } 

}

的AndroidManifest.xml：

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    package="com.think.androidteststackoverflow" 
    android:versionCode="1" 
    android:versionName="1.0" > 

    <uses-sdk 
     android:minSdkVersion="8" 
     android:targetSdkVersion="18" /> 

    <application 
     android:allowBackup="true" 
     android:icon="@drawable/ic_launcher_3" 
     android:label="@string/app_name" 
     android:theme="@style/AppTheme" > 
     <activity 
      android:name="com.think.androidteststackoverflow.TestAlarmManager" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

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

      <receiver android:name=".AlarmReceiver"></receiver> 
    </application> 

</manifest>

来源

2014-10-08 16:09:35 Rustam

AlarmManager不启动BroadcastReceiver

回答

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