Android服务取消后未停止
我有一个小部件,它使用AlamManager启动2个服务并重复运行它们:Android服务取消后未停止,android,android-widget,android-service,alarmmanager,repeatingalarm,Android,Android Widget,Android Service,Alarmmanager,Repeatingalarm,我有一个小部件,它使用AlamManager启动2个服务并重复运行它们: public static final String TAG = "RotterWidgetProvider"; public static ArrayList<SubjectObject> subjectsList; public static boolean isUpdated=true; public static int currentSubject=0; private PendingIntent s
public static final String TAG = "RotterWidgetProvider";
public static ArrayList<SubjectObject> subjectsList;
public static boolean isUpdated=true;
public static int currentSubject=0;
private PendingIntent serviceShowNextSubject = null;
private PendingIntent serviceDownloadSubjects = null;
Intent i=null;
Intent i2=null;
@Override
public void onUpdate(final Context context, final AppWidgetManager appWidgetManager,int[] appWidgetIds)
{
RemoteViews remoteView = new RemoteViews(context.getPackageName(), R.layout.rotter_appwidget_layout);
Intent launchAppIntent = new Intent(context, WidgetSettings.class);
PendingIntent launchAppPendingIntent = PendingIntent.getActivity(context,
0, launchAppIntent, PendingIntent.FLAG_UPDATE_CURRENT);
remoteView.setOnClickPendingIntent(R.id.imgWidgetSettings, launchAppPendingIntent);
if(subjectsList==null)
{
remoteView.setTextViewText(R.id.txtSubject,"נא לחכות, טוען נתונים");
ComponentName RotterListWidget = new ComponentName(context,
RotterWidgetProvider.class);
appWidgetManager.updateAppWidget(RotterListWidget, remoteView);
final AlarmManager m = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
final Calendar TIME = Calendar.getInstance();
TIME.set(Calendar.MINUTE, 0);
TIME.set(Calendar.SECOND, 0);
TIME.set(Calendar.MILLISECOND, 0);
if(i==null)
{
i = new Intent(context, UpdateRotterWidgetService.class);
Log.v(TAG,"UpdateRotterWidgetService Created");
}
if(i2==null)
{
i2 = new Intent(context, DownloadSubjectsService.class);
Log.v(TAG,"DownloadSubjectsService Created");
}
if (serviceShowNextSubject == null)
{
serviceShowNextSubject = PendingIntent.getService(context, 0, i, PendingIntent.FLAG_CANCEL_CURRENT);
Log.v(TAG,"serviceShowNextSubject initialized");
}
if(serviceDownloadSubjects==null)
{
serviceDownloadSubjects=PendingIntent.getService(context, 0, i2, PendingIntent.FLAG_CANCEL_CURRENT);
Log.v(TAG,"serviceDownloadSubjects initialized");
}
SharedPreferences settings = PreferenceManager.getDefaultSharedPreferences(context.getApplicationContext());
String subjectsDownloadInterval=settings.getString("SubjectsDownloadInterval", "10");
String subjectsUpdateInterval=settings.getString("SubjectsUpdateInterval", "10");
int down=10;
int upd=10;
try
{
down=Integer.parseInt(subjectsDownloadInterval);
upd=Integer.parseInt(subjectsUpdateInterval);
}
catch(Exception e)
{
}
m.setRepeating(AlarmManager.RTC, TIME.getTime().getTime(), 1000 * 60*down, serviceDownloadSubjects);
m.setRepeating(AlarmManager.RTC, TIME.getTime().getTime(), 1000 * upd, serviceShowNextSubject);
}
}
但这些服务不会取消,而是在后台继续运行。
有什么问题吗?取消警报不会停止服务。您必须手动停止他们,或者在他们完成工作后让他们自己停止 当小部件从屏幕上移除时,我如何手动停止它们?您的服务具体做什么?你能让他们在完成后停下来吗?这是一个更干净的解决方案。第一个服务每X分钟从服务器下载一些数据,第二个服务每X秒用新数据刷新一次小部件,只有当小部件从屏幕上删除时才需要停止。不完全是这样——如果您使用的是AlaramManager,您的下载服务将每X分钟启动一次。所以你可以在下载后停止它。与另一个服务相同——计划它每X秒运行一次(顺便说一句,即使对于一个小部件来说,这也太多了),并在完成刷新时停止它。
@Override
public void onDisabled(Context context)
{
final AlarmManager m = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
m.cancel(serviceShowNextSubject);
m.cancel(serviceDownloadSubjects);
}