我正在开发一个提醒用户的应用程序。它运行良好,但是当我设置它并重启设备时,通知返回null。我认为问题出在广播接收器上。因为无法获得意图额外的任何字符串。
- 活动 -
private void setAlarm() {
Intent myIntent = new Intent(this, AlarmReceiver.class);
String data = descripton.getText().toString();
Bundle b = new Bundle();
b.putString("notify_message", data);
myIntent.putExtras(b);
pendingIntent = PendingIntent.getBroadcast(this, 0, myIntent,
PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC, cal.getTimeInMillis(), pendingIntent);
}
- 清单 -
<receiver android:name=".ekstra.AlarmReceiver"
android:enabled="true"
android:exported="true"
android:label="StartMyServiceAtBootReceiver">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
</intent-filter>
</receiver>
- broadcastreceiver -
@Override
public void onReceive(Context context, Intent intent) {
try {
Bundle extras = intent.getExtras();
//Afret reboot test1 and test2 is null
String test1 = extras.getString("notify_message");
String test2 = intent.getStringExtra("notify_message");
Intent newIntent = new Intent(context, RemindingService.class);
newIntent.putExtra("messaage", message);
context.startService(newIntent);
} catch (Exception e) {
Log.e("Test", "error " + e.toString());
}
}
答案 0 :(得分:0)
如上所述,重启后您将不会收到广播。 但是如果你在引导完成时调用相同的AlarmReceiver,这是由System So广播那么,以下将返回null
String test1 = extras.getString("notify_message");//test1 is null
OR
String test2 = intent.getStringExtra("notify_message");//test2 is null
(两个电话都是等效的)
因此,您应该根据启动后是否调用Receiver还是由于Alarm来执行逻辑。您可以在AlarmReceiver中执行以下操作:
String msg = intent.getStringExtra("notify_message");
if(msg==null){
//means that receiver started after boot
// write your logic here
}else{
//means that receiver started by alarm
//write your logic here
}