在开发中,我们可能会遇到这样的需求,当AppStore中有新版本需要更新迭代,用户在点开APP的时候弹出提示框提醒用户去AppStore更新。
这里需要我们判断当前APP与AppStore中的版本差别,如果一样,不需要提示;如果不一样就弹出提示框,给用户提示更新APP版本。
-(void)viewDidLoad{
[super viewDidLoad];
//iOS应用版本检测
[self versionDetection];
}
-(void)versionDetection{
//获取当前发布的版本的Version
NSString *currentVersionStr = [NSString stringWithContentsOfURL:[NSURL URLWithString:@"http://itunes.apple.com/cn/lookup?id=1061858098"] encoding:NSUTF8StringEncoding error:nil];
//判断字符串是否为nil,长度是不是大于0,以及是不是取得版本
if (currentVersionStr != nil && [currentVersionStr length] > 0 && [currentVersionStr rangeOfString:@"version"].length == 7) {
[self checkAppUpdate:currentVersionStr];
}
}
代码中的url是每个APP的链接,其中id可以在下图中查到,这个id是上线后自动分配的唯一id,这个id还有其他的查看方式,这里就不说了。由于公司app的销售范围是国内,所以链接是http://itunes.apple.com/cn/lookup?id=1061858098,如果销售范围不只国内链接需改成http://itunes.apple.com/lookup?id=1061858098,否则拿到的results会为空
-(void)checkAppUpdate:(NSString *)currentVersionStr{
//string转dictionary
NSDictionary *versionDict = [global dictionaryWithJSonString:currentVersionStr];
//获取当前版本
NSString *versionStr = [[NSBundle mainBundle] infoDictionary][@"CFBundleShortVersionString"];
//线上App版本
NSString *appVersion = [currentVersionStr substringFromIndex:[currentVersionStr rangeOfString:@"\"version\":"].location+10];
appVersion = [[appVersion substringToIndex:[appVersion rangeOfString:@","].location] stringByReplacingOccurrencesOfString:@"\"" withString:@""];
NSArray *localArray = [versionStr componentsSeparatedByString:@"."];
NSArray *versionArray = [appVersion componentsSeparatedByString:@"."];
//这里比较版本号不是不一样就提示更新升级。而是当前版本号如果比AppStore版备号小的时候提示弹框升级。这样做的最大好处就是苹果在审核App时不会出现提示升级。
if ((versionArray.count == 3) && (localArray.count == versionArray.count)) {
if ([localArray[0] intValue] < [versionArray[0] intValue]) {
[self uodateVersion:currentVersionStr];
}else if ([localArray[0] intValue] == [versionArray[0] intValue]){
if ([localArray[1] intValue] < [versionArray[1] intValue]) {
[self uodateVersion:currentVersionStr];
}else if ([localArray[1] intValue] == [versionArray[1] intValue]){
if ([localArray[2] intValue] < [versionArray[2] intValue]) {
[self uodateVersion:currentVersionStr];
}
}
}
}
-(void)uodateVersion:(NSString *)currentVersion {
NSDictionary *versionDict = [global dictionaryWithJSonString:currentVersion];
NSString * releaseNotesString= [[[versionDict objectForKey:@"results"] objectAtIndex:0] valueForKey:@"releaseNotes"];
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"发现新版本" message:releaseNotesString preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:nil];
UIAlertAction *okAction = [UIAlertAction actionWithTitle:@"更新" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSString *url = @"https://itunes.apple.com/cn/app/de-wei-dian-shang/id1061858098?mt=8&uo=4";
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:url]];
}];
[alertController addAction:cancelAction];
[alertController addAction:okAction];
[self presentViewController:alertController animated:YES completion:nil];
}
纠正,现在这种方式会被苹果给拒绝,可以换成后台控制这个弹出框的显示
结语:如有错误请留言!
如果疑问请留言,一起进步