iOS检测版本更新

提示：
检测app版本的更新，必须要获取当前运行app版本的版本信息和appstore 上发布的最新版本的信息。

---

• 获取当前运行app版本信息

NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary];// 版本号：Bundle versionNSString *build = [infoDictionary objectForKey:@"CFBundleVersion"]; /*NSString *str=[[NSBundle mainBundle]objectForInfoDictionaryKey:(NSString *)kCFBundleVersionKey]; */ //应用标识：Bundle identifierNSString *bundleId = [infoDictionary objectForKey:@"CFBundleIdentifier"];//应用名称：Bundle display nameNSString *appName = [[NSBundle mainBundle] objectForInfoDictionaryKey:@"CFBundleDisplayName"];

• 获取appstore 上发布的最新版本的信息

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（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]];
附：浏览器中打开你的应用程序在 appstore 中的下载介绍页面的另一种URL：

https://itunes.apple.com/cn/app/id你的应用程序的ID?mt=8

代码如下：

导入#import "AFNetworking.h"#pragma mark - versionRequest-----------------------(void)onCheckVersion{        NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary];    NSString *currentVersion = [infoDic objectForKey:@"CFBundleVersion"];    NSString *str=[NSString stringWithFormat:@"http://itunes.apple.com/lookup?id=1028934662"];    NSURL *url = [NSURL URLWithString:[str stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];    NSURLRequest *request = [NSURLRequest requestWithURL:url];    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc]initWithRequest:request];    [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {        NSString *html = operation.responseString;        NSData* data=[html dataUsingEncoding:NSUTF8StringEncoding];        id dict=[NSJSONSerialization  JSONObjectWithData:data options:0 error:nil];        NSArray *infoArray = [dict objectForKey:@"results"];        if ([infoArray count]) {            NSDictionary *releaseInfo = [infoArray objectAtIndex:0];            NSString *lastVersion = [releaseInfo objectForKey:@"version"];            if (![lastVersion isEqualToString:currentVersion]) {                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];                alert.tag          = 10000;                [alert show];            }            else            {                UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"更新" message:@"此版本为最新版本" delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];                alert.tag = 10001;                [alert show];            }        }    }failure:^(AFHTTPRequestOperation *operation, NSError *error) {        HLLog(@"发生错误！%@",error);    }];    NSOperationQueue *queue = [[NSOperationQueue alloc] init];    [queue addOperation:operation];}- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{    if (alertView.tag==10000) {        if (buttonIndex==1) {            NSURL *url = [NSURL URLWithString:@"https://itunes.apple.com/cn/app/id1028934662?mt=8"];            [[UIApplication sharedApplication] openURL:url];        }    }}

同此链接：

http://blog.csdn.net/xiaoxuan415315/article/details/9383453