iOS：MBProgressHUD的基本使用

下载地址：https://github.com/jdg/MBProgressHUD/

//方式1.直接在View上show
HUD = [[MBProgressHUD showHUDAddedTo:self.view animated:YES] retain];
HUD.delegate = self;  

//常用的设置
//小矩形的背景色
HUD.color = [UIColor clearColor];//这儿表示无背景
//显示的文字
HUD.labelText = @"Test";
//细节文字
HUD.detailsLabelText = @"Test detail";
//是否有庶罩
HUD.dimBackground = YES;
[HUD hide:YES afterDelay:2];  

//只显示文字
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];
}];  

//圆形进度条
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];  

//自定义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];  

代理方法：

#pragma mark -
#pragma mark HUD的代理方法,关闭HUD时执行
-(void)hudWasHidden:(MBProgressHUD *)hud
{
    [hud removeFromSuperview];
    [hud release];
    hud = nil;
}  

二个task

 -(void) doTask{
    //你要进行的一些逻辑操作
    sleep(2);
  }  

  -(void) myProgressTask{
       float progress = 0.0f;
while (progress < 1.0f) {
    progress += 0.01f;
    HUD.progress = progress;
    usleep(50000);
}  

  }