MBProgressHUD的基本使用

先下載MBProgressHUD.h和.m文件，拖入工程。地址：MBProgressHUD

以下是代碼：（先在.h文件里定義 MBProgressHUD *HUD;）

    //方式1.直接在View上show

    HUD = [[MBProgressHUD showHUDAddedTo:self.view animated:YES] retain];

    HUD.delegate = self;


//常用的設置  
//小矩形的背景色  
HUD.color = [UIColor clearColor];//這兒表示無背景  
//顯示的文字  
HUD.labelText = @"Test";  
//細節文字  
HUD.detailsLabelText = @"Test detail";  
//是否有庶罩  
HUD.dimBackground = YES;  
[HUD hide:YES afterDelay:2];  

//只顯示文字  
MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:self.view animated:YES];  
hud.mode = MBProgressHUDModeText;  
hud.labelText = @"Some message...";  
hud.margin = 10.f;  
hud.yOffset = 150.f;  
hud.removeFromSuperViewOnHide = YES;  
[hud hide:YES afterDelay:3];  

//方式2.initWithView  
//use block  
HUD = [[MBProgressHUD alloc] initWithView:self.view];  
[self.view addSubview:HUD];  
HUD.labelText = @"Test";  
[HUD showAnimated:YES whileExecutingBlock:^{  
    NSLog(@"%@",@"do somethings....");  
    [self doTask];  
} completionBlock:^{  
    [HUD removeFromSuperview];  
    [HUD release];          
}];  

//圓形進度條  
HUD = [[MBProgressHUD alloc] initWithView:self.view];  
[self.view addSubview:HUD];  
HUD.mode = MBProgressHUDModeAnnularDeterminate;  
HUD.delegate = self;  
HUD.labelText = @"Loading";  
[HUD showWhileExecuting:@selector(myProgressTask) onTarget:self withObject:nil animated:YES];  

//自定義view  
HUD = [[MBProgressHUD alloc] initWithView:self.view];  
HUD.customView = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"37x-Checkmark.png"]] autorelease];  
// Set custom view mode  
HUD.mode = MBProgressHUDModeCustomView;  
HUD.delegate = self;  
HUD.labelText = @"Completed";  
[HUD show:YES];  
[HUD hide:YES afterDelay:3];  </pre> 


 代理方法：
    #pragma mark -


#pragma mark HUD的代理方法,關閉HUD時執行  
-(void)hudWasHidden:(MBProgressHUD *)hud  
{  
    [hud removeFromSuperview];  
    [hud release];  
    hud = nil;  
}  </pre> 



 二個task 

 -(void) doTask{

    //你要進行的一些邏輯操作

    sleep(2);

  }

-(void) myProgressTask{

       float progress = 0.0f;

while (progress < 1.0f) {

    progress += 0.01f;

    HUD.progress = progress;

    usleep(50000);

}
}  </pre>