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我正在開發一個應用程序,當鬧鐘被觸發時,它會在後臺執行某些操作。現在它只是一個敬酒。 運行時,我沒有得到任何錯誤,但當警報響起時,廣播接收器不會被調用。 我錯過了什麼?當有鬧鐘時,BroadcastReceiver不會觸發
AlarmReceiver:
public class AlarmReceiver extends BroadcastReceiver {
public static final String ALARM_ALERT_ACTION = "com.android.deskclock.ALARM_ALERT";
@Override
public void onReceive(Context context, Intent intent) {
{
Intent alarm = new Intent(ALARM_ALERT_ACTION);
// context.registerReceiver(this, alarm);
String action = intent.getAction();
if (action.equals(ALARM_ALERT_ACTION))
{
// for play/pause mediaplayer
CharSequence text = "Hello toast!";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
}
}
}
}
AndroidManifest:
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.noel.alarmnotification">
<uses-permission android:name="com.android.alarm.permission."/>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<receiver android:name=".AlarmReceiver" android:process=":remote">
<intent-filter>
<action android:name="com.android.deskclock.ALARM_ALERT"/>
</intent-filter>
</receiver>
</activity>
</application>
</manifest>
EDIT
MainActivity:
public class MainActivity extends AppCompatActivity {
public static final String ALARM_ALERT_ACTION = "com.android.deskclock.ALARM_ALERT";
public static final String ALARM_SNOOZE_ACTION = "com.android.deskclock.ALARM_SNOOZE";
public static final String ALARM_DISMISS_ACTION = "com.android.deskclock.ALARM_DISMISS";
public static final String ALARM_DONE_ACTION = "com.android.deskclock.ALARM_DONE";
private BroadcastReceiver mReceiver = new BroadcastReceiver()
{
@Override
public void onReceive(Context context, Intent intent)
{
String action = intent.getAction();
if (action.equals(ALARM_ALERT_ACTION) || action.equals(ALARM_DISMISS_ACTION) || action.equals(ALARM_SNOOZE_ACTION) || action.equals(ALARM_DONE_ACTION))
{
// for play/pause mediaplayer
}
}
};
@Override
public void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
IntentFilter filter = new IntentFilter(ALARM_ALERT_ACTION);
filter.addAction(ALARM_DISMISS_ACTION);
filter.addAction(ALARM_SNOOZE_ACTION);
filter.addAction(ALARM_DONE_ACTION);
registerReceiver(mReceiver, filter);
}
}
瓦時恩我編程方式創建一個寄存器,一旦應用程序被關閉,它不廣播報警
當你聽到廣播接收器沒有被叫做***時,你的意思是什麼?您會聽到警報,但接收器內的方法不會被執行? – Opiatefuchs
是的,這就是發生了什麼,我調試它,但程序永遠不會到達廣播接收器內的斷點 – programernoob
我不太確定,但我想你需要的權限'<使用權限android:name =「com.android.alarm .permission.SET_ALARM「/>'。如果你是在棉花糖行事,你也需要運行時的權限請求。 – Opiatefuchs