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);  
}  
  
  } 

注意： 其实，第三方库都是开源的，我们可以在其基础上添加另外自己需要的功能，如果觉得上面显示文字代码太不好用，可以添加一个分类，对它设置文字的方法再次封装如下所示：

添加一个分类：MBProgressHUD+XYQ

MBProgressHUD+XYQ.h文件：

#import "MBProgressHUD"

@interface MBProgressHUD (XYQ)
+ (void)showSuccess:(NSString *)success toView:(UIView *)view;
+ (void)showError:(NSString *)error toView:(UIView *)view;

+ (MBProgressHUD *)showMessage:(NSString *)message toView:(UIView *)view;


+ (void)showSuccess:(NSString *)success;
+ (void)showError:(NSString *)error;

+ (MBProgressHUD *)showMessage:(NSString *)message;

+ (void)hideHUDForView:(UIView *)view;
+ (void)hideHUD;

@end

MBProgressHUD+XYQ.m文件：

#import "MBProgressHUD+XYQ.h"

@implementation MBProgressHUD (XYQ)
#pragma mark 显示信息
+ (void)show:(NSString *)text icon:(NSString *)icon view:(UIView *)view
{
    if (view == nil) view = [[UIApplication sharedApplication].windows lastObject];
    // 快速显示一个提示信息
    MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:view animated:YES];
    hud.labelText = text;
    // 设置图片
    hud.customView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:[NSString stringWithFormat:@"MBProgressHUD.bundle/%@", icon]]];
    // 再设置模式
    hud.mode = MBProgressHUDModeCustomView;
    
    // 隐藏时候从父控件中移除
    hud.removeFromSuperViewOnHide = YES;
    
    // 1秒之后再消失
    [hud hide:YES afterDelay:1.2];
}

#pragma mark 显示错误信息
+ (void)showError:(NSString *)error toView:(UIView *)view{
    [self show:error icon:@"error.png" view:view];
}

+ (void)showSuccess:(NSString *)success toView:(UIView *)view
{
    [self show:success icon:@"success.png" view:view];
}

#pragma mark 显示一些信息
+ (MBProgressHUD *)showMessage:(NSString *)message toView:(UIView *)view {
    if (view == nil) view = [[UIApplication sharedApplication].windows lastObject];
    // 快速显示一个提示信息
    MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:view animated:YES];
    hud.labelText = message;
    // 隐藏时候从父控件中移除
    hud.removeFromSuperViewOnHide = YES;
    // YES代表需要蒙版效果
    hud.dimBackground = YES;
    return hud;
}

+ (void)showSuccess:(NSString *)success
{
    [self showSuccess:success toView:nil];
}

+ (void)showError:(NSString *)error
{
    [self showError:error toView:nil];
}

+ (MBProgressHUD *)showMessage:(NSString *)message
{
    return [self showMessage:message toView:nil];
}

+ (void)hideHUDForView:(UIView *)view
{
    [self hideHUDForView:view animated:YES];
}

+ (void)hideHUD
{
    [self hideHUDForView:nil];
}
@end

更详细的讲解请看该链接：http://blog.csdn.net/ryantang03/article/details/7877120