iOS检查更新并跳转至AppStore

先上代码
//1. 在application中调用

-(void)checkVersionUpdata{

    NSString *urlStr    = @"http://itunes.apple.com/lookup?id=1329918420";//id替换即可

    NSURL *url          = [NSURL URLWithString:urlStr];

    NSURLRequest *req   = [NSURLRequest requestWithURL:url];

    [NSURLConnection connectionWithRequest:req delegate:self];

}

//2. 网络连接

-(void)connection:(NSURLConnection *)connection didReceiveData:(nonnull NSData *)data

{

    NSError *error;

    id jsonObject           = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&error];

    [XKCEHint disMissLoading];

    NSDictionary *appInfo   = (NSDictionary*)jsonObject;

    NSArray *infoContent    = [appInfo objectForKey:@"results"];

    NSString * version      = [[infoContent objectAtIndex:0]objectForKey:@"version"];//线上最新版本

    // 获取当前版本

    NSString *currentVersion    = [self version];//当前用户版本

    BOOL result          = [currentVersion compare:version] == NSOrderedAscending;

    if (result) {//需要更新

        [XKCEGlobleData sharedData].version = @"1";

        NSLog(@"不是最新版本需要更新");

        NSString *updateStr = [NSString stringWithFormat:@"发现新版本V%@\n为保证软件的正常运行\n请及时更新到最新版本",version];

        [self creatAlterView:updateStr];

    } else {//已经是最新版;

        NSLog(@"最新版本不需要更新");

    }
}

//3. 弹框提示

-(void)creatAlterView:(NSString *)msg{

    UIAlertController *alertText = [UIAlertController alertControllerWithTitle:@"更新提醒" message:msg preferredStyle:UIAlertControllerStyleAlert];

    //增加按钮

    [alertText addAction:[UIAlertAction actionWithTitle:@"我再想想" style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {

    }]];

    [alertText addAction:[UIAlertAction actionWithTitle:@"立即更新" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {

        NSString *str = @"itms-apps://itunes.apple.com/cn/app/id1329918420?mt=8"; //更换id即可

        [[UIApplication sharedApplication] openURL:[NSURL URLWithString:str]];

    }]];

    [self.window.rootViewController presentViewController:alertText animated:YES completion:nil];

}

//版本

-(NSString *)version

{

    NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary];

    NSString *app_Version       = [infoDictionary objectForKey:@"CFBundleShortVersionString"];

    return app_Version;

}

1. url只要替换成自己的id即可
2. jsonobject中可以获取到当前软件在APPstore的信息,返回的内容大致如下
{  
    resultCount = 1;  
    results =     (  
                {  
            artistId = 开发者 ID;  
            artistName = 开发者名称; 
            price = 0; 
            isGameCenterEnabled = 0;  
            kind = software;  
            languageCodesISO2A =             (  
                EN  
            ); 
            trackCensoredName = 审查名称;  
            trackContentRating = 评级;  
            trackId = 应用程序 ID;  
            trackName = 应用程序名称";  
            trackViewUrl = 应用程序介绍网址;  
            userRatingCount = 用户评级;  
            userRatingCountForCurrentVersion = 1;  
            version = 版本号;  
            wrapperType = software; 
      }  
    );  
}

我们需要的就是版本信息,将当前版本与AppStore获取的版本相对比,查看是否是最新版本

3. 弹框提示

跳转到APPstore的url可以直接将id替换。

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