上次说到了网络请求AFN,那么我们在网络请求的时候,等待期间,为了让用户不认为是卡死或程序出错,一般都会放一个菊花加载,系统有一个菊花加载类叫UIProgressHUD.但是我今天要说的是一个替代它的第三方,叫做:MBProgressHUD.MBProgressHUD不光加载效果多,而且使用简单,便捷.github上有下载地址

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

 

先下载MBProgressHUD.h和.m文件，拖入工程。

以下是代码：（先在.h文件里定义 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];

需要注意的是,MBprogressHUD的代理方法

 

 

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