.h

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>

@interface LoadingView : UIView
{
    
}

@property (assign, nonatomic) NSInteger pointCount;
@property (strong, nonatomic) LoadingView * loadingView;
@property (strong, nonatomic) UILabel * loadingLabel;
@property (strong, nonatomic) UILabel * bgLabel;
@property (strong, nonatomic) UIActivityIndicatorView * activityView;
@property (strong, nonatomic) NSTimer * timer;

- (void)showLoadingView:(UIView *)superView;
- (void)removeView;

@end
 

#import "LoadingView.h"
#import <QuartzCore/QuartzCore.h>

@implementation LoadingView

- (void)showLoadingView:(UIView *)superView
{
    CGSize size = [UIScreen mainScreen].bounds.size;
    //背景頁面
    self.loadingView = [[LoadingView alloc] initWithFrame:[UIScreen mainScreen].bounds];
    [self.loadingView setBackgroundColor:[UIColor lightGrayColor]];
    [self.loadingView setAlpha:0.4];
    [superView addSubview:self.loadingView];
    
    //小的背景圖片
    self.bgLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, size.width / 2, 100)];
    [self.bgLabel setBackgroundColor:[UIColor darkGrayColor]];
    CGPoint point = CGPointMake(self.loadingView.center.x, self.loadingView.center.y + 10);
    [self.bgLabel setCenter:point];
    self.bgLabel.layer.cornerRadius = 10;
    self.bgLabel.layer.masksToBounds = YES;
    [superView addSubview:self.bgLabel];
    
    //轉圈頁面
    self.activityView = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(size.width / 2 - 30, size.height / 2 - 30, 60.0f, 60.0f)];
    [self.activityView setBackgroundColor:[UIColor clearColor]];
    [self.activityView setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleWhiteLarge];
    [superView addSubview:self.activityView];
    [self.activityView startAnimating];
    //提示文字
    CGRect labelFrame = CGRectMake(size.width / 2, size.height / 2 + 30, size.width / 3, 50);
    self.loadingLabel = [[UILabel alloc] initWithFrame:labelFrame];
    point = CGPointMake(self.loadingView.center.x, self.loadingView.center.y + 35);
    [self.loadingLabel setCenter:point];
    self.loadingLabel.textAlignment = UITextAlignmentCenter;
    self.loadingLabel.text = @"玩命載入中";
    self.loadingLabel.textColor = [UIColor whiteColor];
    self.loadingLabel.layer.cornerRadius = 30;
    self.loadingLabel.backgroundColor = [UIColor clearColor];
    [superView addSubview:self.loadingLabel];
    
    self.pointCount = 0;
    self.timer = [NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(updateLoadingLabel:) userInfo:nil repeats:YES];
}

- (void)updateLoadingLabel:(NSTimer *)timer
{
    self.pointCount ++;
    if (self.pointCount > 3)
    {
        self.pointCount = 0;
        self.loadingLabel.text = @"玩命載入中";
    }
    else
    {
        NSString * msg = @"玩命載入中";
        for (int i = 0; i < self.pointCount; i++)
        {
            msg = [NSString stringWithFormat:@"%@.",msg];
            self.loadingLabel.text = msg;
        }
    }
}

- (void)removeView
{
    [self.loadingView removeFromSuperview];
    [self.loadingLabel removeFromSuperview];
    [self.bgLabel removeFromSuperview];
    [self.activityView stopAnimating];
    [self.activityView removeFromSuperview];
    [self.timer invalidate];
    self.timer = nil;
}

@end
 

self.MyLoadingView = [[LoadingView alloc]init];
[self.MyLoadingView showLoadingView:superView];

[self.MyLoadingView removeView];

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