Adding a completion call back for MBProgressHUD

Question

I would like to add a completion callback on my method so that the progress of the HUD knows it is complete.

MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES]; hud.mode = MBProgressHUDModeAnnularDeterminate; hud.labelText = @"Loading"; [self doSomethingInBackgroundWithProgressCallback:^(float progress) { hud.progress = progress; } completionCallback:^{ [MBProgressHUD hideHUDForView:self.view animated:YES]; }];

What would I need to add to my method to confirm it is complete, or trigger this completionCallback from above?

In this case my method could be anything for example:

-(void)doSomethignInBackgroundWithProgressCallback { sleep(100); }

saadnib · Accepted Answer · 2012-08-31 05:22:17Z

3

In case of HUD you can use its delegate function hudWasHidden which will when you use HUD like this -

[HUD showWhileExecuting:@selector(your_function) onTarget:self withObject:nil animated:YES];

and if you want to know how to use callbacks in objective c then follow this post -

http://stackoverflow.com/questions/1015608/how-to-perform-callbacks-in-objective-c

completion callback method -

- (void) doSomethingInBackground:(void (^) (void)) completion { // do your job here completion(); }

edited Aug 31, 2012 at 5:22

answered Aug 30, 2012 at 13:40

saadnib

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4 Comments

StuartM Over a year ago

Using the showWhileExecuting does not increase the progress of the progress bar within the HUD though correct? Which I presume is what the callback part is for?

saadnib Over a year ago

are you talking about HUD's progress view progress then you can increase the progress through showWhileExecuting.

StuartM Over a year ago

yes if i only use the showWhileExecuting(method) then the progress for the AnnularDeterminate mode of HUD the progress bar in the HUD does not increase at all... I presumed using the above style with the Callback for completition would update the process.

StuartM Over a year ago

are you able to help with the callback in the above code example for an example on this?

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