iOS/iPhone Activity Indicator View (ActivityIndicator,UIActivityIndicatorView) Example (iPhone,iPad)

IBOutlet UIActivityIndicatorView *indicator;

[indicator startAnimating];

IBOutlet UIActivityIndicatorView *indicator;

[indicator stopAnimating];

- (IBAction)btnStart:(id)sender {
    if(![indicator isAnimating])
    {
        [indicator setHidden:FALSE];
        [indicator startAnimating];
    }
    
}

- (IBAction)btnStop:(id)sender {
    if([indicator isAnimating])
    {
        [indicator stopAnimating];
        [indicator setHidden:TRUE];
    }
}

//
//  ViewController.h
//  indicatorApp
//
//  Created by Weerachai on 11/10/55 BE.
//  Copyright (c) 2555 Weerachai. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController
{
    IBOutlet UIActivityIndicatorView *indicator;
}

- (IBAction)btnStart:(id)sender;
- (IBAction)btnStop:(id)sender;

@end

//
//  ViewController.m
//  indicatorApp
//
//  Created by Weerachai on 11/10/55 BE.
//  Copyright (c) 2555 Weerachai. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad
{
    [super viewDidLoad];
	// Do any additional setup after loading the view, typically from a nib.
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

- (IBAction)btnStart:(id)sender {
    if(![indicator isAnimating])
    {
        [indicator setHidden:FALSE];
        [indicator startAnimating];
    }
    
}

- (IBAction)btnStop:(id)sender {
    if([indicator isAnimating])
    {
        [indicator stopAnimating];
        [indicator setHidden:TRUE];
    }
}


- (void)dealloc {
    [indicator release];
    [super dealloc];
}

@end