iOS 检测版本更新
当前运行版本信息可以通过info.plist文件中的bundle version中获取：
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NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary];
CFShow(infoDic);
- 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：
-(void)onCheckVersion
{
NSDictionary *infoDic = [[NSBundlemainBundle] infoDictionary];
//CFShow((__bridge CFTypeRef)(infoDic));
NSString *currentVersion = [infoDic objectForKey:@"CFBundleVersion"];
NSString *URL =@"http://itunes.apple.com/lookup?id=你的应用程序的ID";
NSMutableURLRequest *request = [[NSMutableURLRequestalloc] init];
[requestsetURL:[NSURLURLWithString:URL]];
[requestsetHTTPMethod:@"POST"];
NSHTTPURLResponse *urlResponse = nil;
NSError *error = nil;
NSData *recervedData = [NSURLConnectionsendSynchronousRequest:request returningResponse:&urlResponse error:&error];
NSString *results = [[NSStringalloc] initWithBytes:[recervedDatabytes] length:[recervedDatalength] encoding:NSUTF8StringEncoding];
NSDictionary *dic = [results JSONValue];
NSArray *infoArray = [dic objectForKey:@"results"];
if ([infoArray count]) {
NSDictionary *releaseInfo = [infoArray objectAtIndex:0];
NSString *lastVersion = [releaseInfo objectForKey:@"version"];
if (![lastVersion isEqualToString:currentVersion]) {
//trackViewURL = [releaseInfo objectForKey:@"trackVireUrl"];
UIAlertView *alert = [[UIAlertViewalloc] 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;
[alertshow];
}
else
{
UIAlertView *alert = [[UIAlertViewalloc] initWithTitle:@"更新"message:@"此版本为最新版本" delegate:selfcancelButtonTitle:@"确定" otherButtonTitles:nil,nil];
alert.tag =10001;
[alertshow];
}
}
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (alertView.tag==10000) {
if (buttonIndex==1) {
NSURL *url = [NSURLURLWithString:@"https://itunes.apple.com"];
[[UIApplicationsharedApplication]openURL:url];
}
}
}