Question

我尝试将PendingIntent中的值发送到Broadcast，但我不能。这是我的代码：

  Calendar calendar = Calendar.getInstance();
  calendar.set(Calendar.HOUR_OF_DAY, alarmTimePicker.getCurrentHour());
  calendar.set(Calendar.MINUTE, alarmTimePicker.getCurrentMinute());
  calendar.set(Calendar.DATE, alarmDatePicker.getDayOfMonth());
  Intent myIntent = new Intent(Activity_Main.this, SampleBootReceiver.class);
  myIntent.putExtra("ID", 1234);

  pendingIntent = PendingIntent.getBroadcast(Activity_Main.this,0, myIntent, 0);
  alarmManager.setRepeating(AlarmManager.RTC, calendar.getTimeInMillis(), 20000, pendingIntent);

这是我的BroadCast：

public class SampleBootReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        int i=  intent.getExtras().getInt("ID");
        Log.w("Sample",""+ i);
        Intent a =new Intent(context,RSSPullService.class);
        a.putExtra("ID",i);
        context.startService(a);
   }
}

我将i的值设为0。我不明白为什么。非常感谢你。

Answer 1

因为Intent中唯一改变的是附加内容。因此，PendingIntent.getActivity（...）工厂方法只是将旧的intent重新用作优化。

更改此行，

pendingIntent = PendingIntent.getBroadcast(Activity_Main.this,0, myIntent, 0);

要，

pendingIntent = PendingIntent.getBroadcast(Activity_Main.this,0, myIntent, PendingIntent.FLAG_UPDATE_CURRENT);

请参阅FLAG_UPDATE_CURRENT参考。

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