一个简单的类，用于检测app版本更新的弹出提示框

废话不多说了，这个类突发奇想，自己写写的，可用于很多地方的弹窗，我这里做更新的提示框用，需要其他地方用的话在类里面写个delegate应该就可以了！我写的比较简单！直接上代码!

UpdateAlterView.h

//
//  UpdateAlterView.h
//  MyProject
//
//  Created by danggui on 16/7/19.
//  Copyright © 2016年 danggui. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface UpdateAlterView : UIView

- (void)show:(NSString  *)str;

@end

UpdateAlterView.m

//
//  UpdateAlterView.m
//  MyProject
//
//  Created by danggui on 16/7/19.
//  Copyright © 2016年 danggui. All rights reserved.
//

#import "UpdateAlterView.h"

#define W CGRectGetWidth([UIScreen mainScreen].bounds)
#define H CGRectGetHeight([UIScreen mainScreen].bounds)

@interface UpdateAlterView ()

@property (nonatomic, strong) UIView *bigView;
@property (nonatomic, strong) UIImageView *lab;
@property (nonatomic, strong) UILabel *text;
@property (nonatomic, strong) NSMutableString *textStr;

@end

@implementation UpdateAlterView
@synthesize lab,text;

- (instancetype)init
{
    self = [super init];
    if (self) {
        self.frame = [UIScreen mainScreen].bounds;
        self.backgroundColor = [UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.5];
        
        self.bigView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, W - 40, 150)];
        _bigView.layer.cornerRadius = 10;
        _bigView.layer.masksToBounds = YES;
        _bigView.backgroundColor = [UIColor whiteColor];
        _bigView.center = CGPointMake(W / 2, H / 2);
        
        text = [[UILabel alloc]initWithFrame:CGRectMake(0, 0, CGRectGetWidth(_bigView.frame) - 30, 25)];
        text.center = CGPointMake(CGRectGetWidth(_bigView.frame)/2, CGRectGetHeight(_bigView.frame)/2);
        text.text = @"";
        text.textAlignment = NSTextAlignmentCenter;
        [_bigView addSubview:text];
        
        lab = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 80, 80)];
        lab.backgroundColor = [UIColor whiteColor];
        lab.layer.cornerRadius = 40;
        lab.layer.masksToBounds = YES;
        [lab setImage:[UIImage imageNamed:@"image5.jpg"]];
        lab.center =  CGPointMake(self.center.x , self.center.y - CGRectGetHeight(_bigView.frame)/2 + 20);
        
        [self addSubview:_bigView];
        [self addSubview:lab];
        
        UIButton *bu1 = [UIButton buttonWithType:UIButtonTypeCustom];
        bu1.layer.borderColor = [UIColor lightGrayColor].CGColor;
        bu1.layer.borderWidth = .3f;
        bu1.bounds = CGRectMake(0, 0, CGRectGetWidth(_bigView.frame)/ 2, 44);
        bu1.center = CGPointMake(CGRectGetWidth(_bigView.bounds)/4, CGRectGetHeight(_bigView.bounds) - 44 + 24);
        [bu1 setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
        [bu1 addTarget:self action:@selector(button1) forControlEvents:UIControlEventTouchUpInside];
        
        [bu1 setTitle:@"取消" forState:UIControlStateNormal];
        [_bigView addSubview:bu1];
        
        UIButton *bu2 = [UIButton buttonWithType:UIButtonTypeCustom];
        bu2.layer.borderColor = [UIColor lightGrayColor].CGColor;
        bu2.layer.borderWidth = .2f;
        bu2.bounds = CGRectMake(0, 0, CGRectGetWidth(_bigView.frame)/ 2, 44);
        bu2.center = CGPointMake(3 * CGRectGetWidth(_bigView.bounds)/4, CGRectGetHeight(_bigView.bounds) - 44 + 24);
        [bu2 setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
        [bu2 setTitle:@"确定" forState:UIControlStateNormal];
        [bu2 addTarget:self action:@selector(button2) forControlEvents:UIControlEventTouchUpInside];
        [_bigView addSubview:bu2];
        UILabel *line = [[UILabel alloc]initWithFrame:CGRectMake(0, bu2.frame.origin.y, CGRectGetWidth(_bigView.bounds), 0.5)];
        line.backgroundColor = [UIColor colorWithRed:0.8235 green:0.8235 blue:0.8235 alpha:1.0];
        [_bigView addSubview:line];
        
        _bigView.transform = CGAffineTransformMakeScale(0, 0);
        lab.transform = CGAffineTransformMakeScale(0,0);
    
    }
    return self;
}

- (void)button2 {
    [self dissmiss];
    //ReUploadUrl  为你跳转到AppStore的链接
    //#define ReUploadUrl @"itms-apps://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id="
    //(ps:id=后面的就是你提交appstore审核的那个id，找不到的自行百度)
    [[UIApplication sharedApplication] openURL:[NSURL URLWithString:ReUploadUrl]];
}

- (void)button1 {
    [self dissmiss];
}

- (void)dissmiss {
    [UIView animateWithDuration:.2 animations:^{
        [UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
        self.alpha = 0;
    } completion:^(BOOL finished) {
        [self removeFromSuperview];
    }];
}

- (void)show:(NSString  *)str{
    UIWindow *window = [[UIApplication sharedApplication].windows lastObject];
    [window addSubview:self];
    [UIView animateWithDuration:.3 delay:0 usingSpringWithDamping:0.8 initialSpringVelocity:1 / 0.8 options:0 animations:^{
        [UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
        //        self.alpha = 1;
        _bigView.transform = CGAffineTransformIdentity;
        lab.transform = CGAffineTransformIdentity;
    } completion:^(BOOL finished) {
        [text setText:str];
    }];
}

@end

使用也很简单

在你需要用到的地方
#import "UpdateAlterView.h"

然后
UpdateAlterView *update = [[UpdateAlterView alloc]init];
[update show:@"有新版本更新哦!😄"];

就好了
如图：