有关企业级证书的ios应用升级的问题

其实和后天版本号比较，无非就是在后台写段代码，记录版本号，每次更新手动修改版本号。后来我发现一种方法，就是解析plist。因为打包的时候plist里存着版本号：代码如下。

-(void)updateApp{ 

 NSDictionary* dict = [NSDictionary dictionaryWithContentsOfURL:[NSURL URLWithString:@"http://你服务器上plist的地址/Picc.plist"]];

 if (dict) {

 NSArray* list = [dict objectForKey:@"items"];

 NSDictionary* dict2 = [list objectAtIndex:0]; 

 NSDictionary* dict3 = [dict2 objectForKey:@"metadata"];

 NSString* newVersion = [dict3 objectForKey:@"bundle-version"];

 // NSLog(@"版本号%@",dict4); 

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

 NSString *myVersion = [infoDict objectForKey:@"CFBundleShortVersionString"]; 

 if (![newVersion isEqualToString:myVersion]) { 

 UIAlertView* alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"有新版本" delegate:self cancelButtonTitle:@"马上去更新" otherButtonTitles:@"暂不更新", nil]; 

 [alert showWithCompletionHandler:^(NSInteger buttonIndex) { 

 if (buttonIndex ==0) { 

 NSLog(@"更新"); 

 NSLog(@"%@",DOWNLOAD); 

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

 } else if(buttonIndex ==1){ 

 NSLog(@"不更新"); 

 } }]; } else{ 

 UIAlertView * aler = [[UIAlertView alloc] initWithTitle:@"提示" message:@"您已经是最新版" delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil, nil]; 

 [aler show]; } } else{

 UIAlertView* alert = [[UIAlertView alloc] initWithTitle:@"提示" message:@"请检查网络" delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil, nil]; [alert show]; } }