How to programmatically add a simple default loading(progress) bar in iphone app

Question

I am using http communication in My iPhone app. I want to show a progress bar while it is loading data from server. How can I do it programmatically?

I just want a d

Answer 1

App Delegate.h

-(void)showLoader;

-(void)hideLoder;

App Delegate.m

@implementation AppDelegate

AppDelegate *app;

-(void)showLoader
{

    if(loaderView== NULL)
    {
        loaderView=[[UIView alloc] initWithFrame:self.window.frame];

        [loaderView setBackgroundColor:[UIColor blackColor]];

        [loaderView setAlpha:0.5];

        spinner = [[UIActivityIndicatorView alloc initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];

        [loaderView addSubview:spinner];

        spinner.center = CGPointMake(loaderView.frame.size.width/2-10, 

        loaderView.frame.size.height/2-10);

        spinner.hidesWhenStopped = YES;  
    }
    [spinner startAnimating];
    [self.window addSubview:loaderView];
    [self.window bringSubviewToFront:spinner];
    [self.window bringSubviewToFront:loaderView];
}

-(void)hideLoder
{       
    if (spinner!= NULL) {           
        [spinner stopAnimating];
    }

    [loaderView removeFromSuperview];
}

---

now import "AppDelegate.h" class where ever you want to call loader.and you can call the loader like this.

[app showLoader];

and

[app hideLoder];