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Indicator not dismissing

Open keithlee opened this issue 7 years ago • 6 comments

Issue happens when:

  1. Load a viewcontroller, query something in the background (e.g. Parse query.findObjectsInBackground)
  2. In query.findObjectsInBackground callback (dismiss Progress)
  3. Indicator still there

Note: Only occurs on first time FTIndicator is loaded. Hacked around issue by callign showprogress and then dismissprogress in AppDelegate before any views can be loaded

Happens when loading a new view controller. I believe the indicator hasn't had time to load before calling my dismiss, which causes the issue. Showing and dismissing progress occurs on main thread

keithlee avatar Dec 08 '16 01:12 keithlee

I think maybe when query done callback, you should call dispatch_get_main_queue().

liufengting avatar Dec 08 '16 02:12 liufengting

I tried that, still didn't work. Confirmed that showing/dismissing is on main queue. Its something about the initial initialization of the FTIndicator thats having issues

keithlee avatar Dec 08 '16 02:12 keithlee

I tried the following methods, works fine. Just upload some code, try run the demo and click the + button on the up-left. Maybe let me see some of your code to help me understand more about this issue. Thanks.

  • (void)viewDidLoad { [super viewDidLoad];

    [FTProgressIndicator showProgressWithmessage:@"Something is happening..."];

    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

      for (NSInteger i = 0; i < 1000; i++) {
          NSLog(@"print out %ld",i);
      }
    
      sleep(3);
    
      dispatch_async(dispatch_get_main_queue(), ^{
          [FTProgressIndicator dismiss];
      });
    

    });

}

liufengting avatar Dec 08 '16 02:12 liufengting

This is the code snippet where the problem is occurring. It only occurs the first time I see FTIndicator and only when I’m switching to or loading a new view controller. After that everything works fine. I can clear the indicator that won’t go away, by performing an action that shows the indicator again.

When I debug, the breakpoint hits dismissProgress callback before the indicator is actually shown.

private func fetchObjects(){ FTIndicator.showProgressWithmessage("") query.findObjectsInBackground { (objects: [PFObject]?, error: Error?) in FTIndicator.dismissProgress()

On Dec 7, 2016, at 6:51 PM, Liu Fengting [email protected] wrote:

I tried the following methods, works fine. Just upload some code, try run the demo and click the + button on the up-left. Maybe let me see some of your code to help me understand more about this issue. Thanks.

`

(void)viewDidLoad { [super viewDidLoad];

[FTProgressIndicator showProgressWithmessage:@"Something is happening..."];

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{

for (NSInteger i = 0; i < 1000; i++) { NSLog(@"print out %ld",i); }

sleep(3);

dispatch_async(dispatch_get_main_queue(), ^{ [FTProgressIndicator dismiss]; }); });

}

`

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keithlee avatar Dec 08 '16 02:12 keithlee

Make sure it is dispatch_async. other than that, I can't find any other way to solves this for now.

liufengting avatar Dec 08 '16 03:12 liufengting

I tried dispatch_async but issue still occurs

On Dec 7, 2016, at 7:09 PM, Liu Fengting [email protected] wrote:

Make sure it is dispatch_async. other than that, I can find any other way to solves this.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/liufengting/FTIndicator/issues/8#issuecomment-265641526, or mute the thread https://github.com/notifications/unsubscribe-auth/ABQm0VUT-WXr8pngoWqWrT57ZmsAwTfSks5rF3UAgaJpZM4LHWO9.

keithlee avatar Dec 08 '16 05:12 keithlee