【发布时间】:2015-07-31 15:49:31
【问题描述】:
我最近遇到了一个奇怪的问题。我正在调用一个名为 NotificationService 的服务,它扩展了 IntentService 类。现在在 onHandleIntent(Intent intent) 方法中,我调用了一个异步任务。代码如下:
@Override
protected void onHandleIntent(Intent intent) {
defPrefs = PreferenceManager.getDefaultSharedPreferences(this);
//int fiveMinutes = 1000 * 60 * 5;
//Setting an alarm to call AlarmScheduler service now. This alarm scheduler service will set next days alarm to show notifications
//based on the weekly schedule as obtained from server.
Intent i = new Intent(NotificationService.this, ScheduleAlarms.class);
i.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
//i.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getService(NotificationService.this, 0, i, PendingIntent.FLAG_CANCEL_CURRENT);
AlarmManager alarmManager = (AlarmManager) NotificationService.this.getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC, Calendar.getInstance().getTimeInMillis(), pendingIntent);//Use AlarmManager.INTERVAL_DAY instead of int number here.
//Check if locally notifications are enabled by the user then only show notification depending on
//if there are any latest notifications to be shown.
if(defPrefs.getBoolean(getString(R.string.notifications),true)) {
NotificationAsyncTask httpAsyncTask1 = new NotificationAsyncTask();
httpAsyncTask1.mOnHttpResponseListener = new GetHomeResponse(intent);
httpAsyncTask1.execute("http://" + HttpAsyncTask.IP_ADDRESS + "/v5/getResult");
}else{
Log.v("NotificationService","Disabled");
}
}
NotificationAsyncTask 是在此服务中定义的私有类。现在我收到错误 方法execute必须从主线程调用,目前推断线程为worker.. 我不明白这个执行方法怎么不在主线程上运行?请帮忙。
【问题讨论】:
标签: android multithreading android-asynctask