MBProgressHUD是一个开源项目，实现了很多种样式的提示框，使用上简单、方便，并且可以对显示的内容进行自定义，功能很强大，很多项目中都有使用到。到GitHub上可以下载到项目源码https://github.com/jdg/MBProgressHUD，下载下来后直接把MBProgressHUD.h和MBProgressHUD.m拖入工程中就行，别忘了选择拷贝到工程。完了在需要使用的地方导入头文件就可以开始使用了。首先看下工程截图：
接下来是整个Demo的完整界面，这里我只选择出了几个常用的对话框，其他样式的在源码提供的Demo里可以找到，要用的话直接参考就可以。
接下来直接上代码了，头文件部分：
#import <UIKit/UIKit.h> #import "MBProgressHUD.h" @interface ViewController : UIViewController { //HUD（Head-Up Display，意思是抬头显示的意思） MBProgressHUD *HUD; } - (IBAction)showTextDialog:(id)sender; - (IBAction)showProgressDialog:(id)sender; - (IBAction)showProgressDialog2:(id)sender; - (IBAction)showCustomDialog:(id)sender; - (IBAction)showAllTextDialog:(id)sender; @end
实现文件（按钮实现部分）：
- (IBAction)showTextDialog:(id)sender { //初始化进度框，置于当前的View当中 HUD = [[MBProgressHUD alloc] initWithView:self.view]; [self.view addSubview:HUD]; //如果设置此属性则当前的view置于后台 HUD.dimBackground = YES; //设置对话框文字 HUD.labelText = @"请稍等"; //显示对话框 [HUD showAnimated:YES whileExecutingBlock:^{ //对话框显示时需要执行的操作 sleep(3); } completionBlock:^{ //操作执行完后取消对话框 [HUD removeFromSuperview]; [HUD release]; HUD = nil; }]; } - (IBAction)showProgressDialog:(id)sender { HUD = [[MBProgressHUD alloc] initWithView:self.view]; [self.view addSubview:HUD]; HUD.labelText = @"正在加载"; //设置模式为进度框形的 HUD.mode = MBProgressHUDModeDeterminate; [HUD showAnimated:YES whileExecutingBlock:^{ float progress = 0.0f; while (progress < 1.0f) { progress += 0.01f; HUD.progress = progress; usleep(50000); } } completionBlock:^{ [HUD removeFromSuperview]; [HUD release]; HUD = nil; }]; } - (IBAction)showProgressDialog2:(id)sender { HUD = [[MBProgressHUD alloc] initWithView:self.view]; [self.view addSubview:HUD]; HUD.labelText = @"正在加载"; HUD.mode = MBProgressHUDModeAnnularDeterminate; [HUD showAnimated:YES whileExecutingBlock:^{ float progress = 0.0f; while (progress < 1.0f) { progress += 0.01f; HUD.progress = progress; usleep(50000); } } completionBlock:^{ [HUD removeFromSuperview]; [HUD release]; HUD = nil; }]; } - (IBAction)showCustomDialog:(id)sender { HUD = [[MBProgressHUD alloc] initWithView:self.view]; [self.view addSubview:HUD]; HUD.labelText = @"操作成功"; HUD.mode = MBProgressHUDModeCustomView; HUD.customView = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"Checkmark"]] autorelease]; [HUD showAnimated:YES whileExecutingBlock:^{ sleep(2); } completionBlock:^{ [HUD removeFromSuperview]; [HUD release]; HUD = nil; }]; } - (IBAction)showAllTextDialog:(id)sender { HUD = [[MBProgressHUD alloc] initWithView:self.view]; [self.view addSubview:HUD]; HUD.labelText = @"操作成功"; HUD.mode = MBProgressHUDModeText; //指定距离中心点的X轴和Y轴的偏移量，如果不指定则在屏幕中间显示 // HUD.yOffset = 150.0f; // HUD.xOffset = 100.0f; [HUD showAnimated:YES whileExecutingBlock:^{ sleep(2); } completionBlock:^{ [HUD removeFromSuperview]; [HUD release]; HUD = nil; }]; }
依次实现的效果如下：
以上就简单介绍了MBProgressHUD的使用，这里都是采用block的形式来操作的，这样写起代码来更直观也更高效。
转载于:https://www.cnblogs.com/luqinbin/p/5288214.html
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