Android AlarmManager不启动广播接收器
我正在尝试使用BroadcastReceiver和AlarmManager设置一次性报警。我不知道它为什么不起作用。我做错了什么?我没有例外,没有关于的日志,没有IDE的建议,一切看起来都很好,但我的BroadcastReceiver中的onReceive方法从未被调用Android AlarmManager不启动广播接收器,android,broadcastreceiver,alarmmanager,Android,Broadcastreceiver,Alarmmanager,我正在尝试使用BroadcastReceiver和AlarmManager设置一次性报警。我不知道它为什么不起作用。我做错了什么?我没有例外,没有关于的日志,没有IDE的建议,一切看起来都很好,但我的BroadcastReceiver中的onReceive方法从未被调用 public void setAlarm(Context mContext) { AlarmManager alarmManager = (AlarmManager) mContext.getSystemServ
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());
}
我在活动中称之为:
new MyManager().setAlarm(this);
但我也尝试过:newmymanager().setAlarm(MyActivity.this)代码>
在AndroidManifest.xml中:
<receiver android:name="com.example.AlarmReceiver"></receiver>
但我也尝试过
<receiver android:name=".AlarmReceiver"></receiver>
试着这样做:它会在30秒后发出警报
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();
}
}
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>
我刚刚测试了你的代码,工作正常,你能给我们进一步的代码吗?这样我们就能知道发生了什么
<?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>