将文本和进度图标添加到导航栏

Question

I would like to add a status to the navigation bar. for example, in Whatsapp, when user changes alert settings, It display "updating" text and progress icon on the navigation bar, as shown in below image. How do i do that?

Answer 1

Simple add a separate view in your XIB, something like image below

And create IBOutlet of all the components, and then you can do something like below

self.navigationItem.titleView=self.progressView; //progressView IBOutlet of the container view progressView

in viewDidLoad

then you can create a function like

-(void)showProgress{
   self.lblUpdate.text=@"Updating...";
   [self.indicator startAnimating];
}

-(void)hideProgress{
   self.lblUpdate.text=@"Updated";
   [self.indicator stopAnimating];
}

Make sure you make the view background color clearColor , and make the indicator to hideWhenStopped .

Hope it helps.