iOS 检测版本更新

如果我们要检测app版本的更新,那么我们必须获取当前运行app版本的版本信息和appstore 上发布的最新版本的信息。

 

当前运行版本信息可以通过info.plist文件中的bundle version中获取:

1 NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary];  
2       
3 NSString *appVersion = [infoDic objectForKey:@"CFBundleVersion"]; 

这样就获取到当前运行的app的版本了

 

要获取当前app store上的最新的版本,有两种方法,

一、在某特定的服务器上,发布和存储app最新的版本信息,需要的时候向该服务器请求查询。

 

二、从app store上查询,可以获取到app的作者,连接,版本等。官方相关文档

www.apple.com/itunes/affiliates/resources/documentation/itunes-store-web-service-search-api.htm

 

具体步骤如下:
1,用 POST 方式发送请求:
http://itunes.apple.com/search?term=你的应用程序名称&entity=software

更加精准的做法是根据 app 的 id 来查找:
http://itunes.apple.com/lookup?id=你的应用程序的ID

#define APP_URL http://itunes.apple.com/lookup?id=你的应用程序的ID

你的应用程序的ID 是 itunes connect里的 Apple ID

2,从获得的 response 数据中解析需要的数据。因为从 appstore 查询得到的信息是 JSON 格式的,所以需要经过解析。解析之后得到的原始数据就是如下这个样子的:
{  
    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; 
      }  
    );  
}  

然后从中取得 results 数组即可,具体代码如下所示:

NSDictionary *jsonData = [dataPayload JSONValue];  
NSArray *infoArray = [jsonData objectForKey:@"results"];  
NSDictionary *releaseInfo = [infoArray objectAtIndex:0];  
NSString *latestVersion = [releaseInfo objectForKey:@"version"];  
NSString *trackViewUrl = [releaseInfo objectForKey:@"trackViewUrl"];  

如果你拷贝 trackViewUrl 的实际地址,然后在浏览器中打开,就会打开你的应用程序在 appstore 中的介绍页面。当然我们也可以在代码中调用 safari 来打开它。
UIApplication *application = [UIApplication sharedApplication];  
[application openURL:[NSURL URLWithString:trackViewUrl]];  

 

代码如下:

 1 -(void)onCheckVersion
 2 {
 3     NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary];
 4     //CFShow((__bridge CFTypeRef)(infoDic));
 5     NSString *currentVersion = [infoDic objectForKey:@"CFBundleVersion"];
 6 
 7     NSString *URL = @"http://itunes.apple.com/lookup?id=你的应用程序的ID";
 8     NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
 9     [request setURL:[NSURL URLWithString:URL]];
10     [request setHTTPMethod:@"POST"];
11     NSHTTPURLResponse *urlResponse = nil;
12     NSError *error = nil;
13     NSData *recervedData = [NSURLConnection sendSynchronousRequest:request returningResponse:&urlResponse error:&error];
14     
15     NSString *results = [[NSString alloc] initWithBytes:[recervedData bytes] length:[recervedData length] encoding:NSUTF8StringEncoding];
16     NSDictionary *dic = [results JSONValue];
17     NSArray *infoArray = [dic objectForKey:@"results"];
18     if ([infoArray count]) {
19         NSDictionary *releaseInfo = [infoArray objectAtIndex:0];
20         NSString *lastVersion = [releaseInfo objectForKey:@"version"];
21         
22         if (![lastVersion isEqualToString:currentVersion]) {
23             //trackViewURL = [releaseInfo objectForKey:@"trackVireUrl"];
24             UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"更新" message:@"有新的版本更新,是否前往更新?" delegate:self cancelButtonTitle:@"关闭" otherButtonTitles:@"更新", nil];
25             alert.tag = 10000;
26             [alert show];
27         }
28         else
29         {
30             UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"更新" message:@"此版本为最新版本" delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];
31             alert.tag = 10001;
32             [alert show];
33         }
34     }
35 }
36 - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
37 {
38     if (alertView.tag==10000) {
39         if (buttonIndex==1) {
40             NSURL *url = [NSURL URLWithString:@"https://itunes.apple.com"];
41             [[UIApplication sharedApplication]openURL:url];
42         }
43     }
44 }

 

posted @ 2014-02-24 20:43  ubersexual  阅读(414)  评论(0编辑  收藏  举报