IOS 加载中提示框

LoadingView.h
#import <Foundation/Foundation.h>
@class MBProgressHUD;

@interface LoadingView : NSObject

@property (nonatomic, retain) MBProgressHUD *HUD;

+ (LoadingView *)sharedInstance;

/**
*  加载中提示框
*
*  @param title     标题
*  @param superView 父View
*/
- (void)showLoadingViewWithTitle:(NSString *)title superView:(UIView *)superView;

/**
*  加载中提示框
*
*  @param title     标题
*  @param delay     关闭时间
*  @param superView 父View
*/
- (void)showLoadingViewWithTitle:(NSString *)title afterDelay:(NSTimeInterval)delay superView:(UIView *)superView;

/**
*  关闭提示框
*/
- (void)closeLoadingView;

@end

LoadingView.m
#import "LoadingView.h"
#import "MBProgressHUD.h"

@implementation LoadingView

@synthesize HUD;

static LoadingView *_shardLoadingView = nil;

+ (LoadingView *)sharedInstance
{
if (_shardLoadingView == nil) {
_shardLoadingView = [[LoadingView alloc]init];
}
return _shardLoadingView;
}

- (id)init
{
self = [super init];
if (self) {
HUD = [[MBProgressHUD alloc] init];
}
return self;
}

- (void)showLoadingViewWithTitle:(NSString *)title superView:(UIView *)superView
{
HUD.labelText = title;
[superView addSubview:HUD];
[superView bringSubviewToFront:HUD];
[HUD show:YES];

}

- (void)showLoadingViewWithTitle:(NSString *)title afterDelay:(NSTimeInterval)delay superView:(UIView *)superView
{
HUD.labelText = title;
[superView addSubview:HUD];
[superView bringSubviewToFront:HUD];
[HUD show:YES];

[HUD hide:YES afterDelay:delay];
}

- (void)closeLoadingView
{
[HUD hide:YES];
}

@end

// 使用
[[LoadingView sharedInstance]showLoadingViewWithTitle:@"加载中...." superView:self.view];