【IOS控件详解】之MBProgressHUD使用

MBProgressHUD是替代UIProgressHUD的一个小工具，使用方法也非常简单

下载地址是： http://github.com/matej/MBProgressHUD

#import <UIKit/UIKit.h>
#import "MBProgressHUD.h"

@ interface  HudDemoViewController : UIViewController <MBProgressHUDDelegate> {
    MBProgressHUD *HUD;
}

- (IBAction) showWithLabel:(id)sender;

- ( void ) myTask;

@end

@implementation  HudDemoViewController

- ( IBAction ) showWithLabel:( id )sender {

    // Should be initialized with the windows frame so the HUD disables all user input by covering the entire screen
    HUD = [[MBProgressHUD alloc] initWithWindow:[UIApplication sharedApplication].keyWindow];

    // Add HUD to screen
    [ self .view.window addSubview:HUD];

    // Regisete for HUD callbacks so we can remove it from the window at the right time
    HUD.delegate = self ;

    HUD.labelText = @ "Loading" ;

    // Show the HUD while the provided method executes in a new thread
    [HUD showWhileExecuting: @selector (myTask) onTarget: self  withObject: nil  animated: YES ];

}

- ( void ) myTask {
    // Do something usefull in here instead of sleeping ...
    sleep(3);
}

- ( void )hudWasHidden {
    // Remove HUD from screen when the HUD was hidded
    [HUD removeFromSuperview];
    [HUD release];
}

@end

原文：http://www.cnblogs.com/GnagWang/archive/2011/09/29/2195710.html