ios实现app强制更新功能

2017-05-06 09:26:38 作者：飞翔云端的鱼

本篇文章主要介绍了ios实现app强制更新功能，小编觉得挺不错的，现在分享给大家，也给大家做个参考。一起跟随小编过来看看吧

最近因项目需求，需要用到强制更新功能，网上搜了一下，挺多的，但是把网上的代码拷贝以后，发现一个bug，就是进app，弹出框显示，点击现在升级，跳转到AppStore下载里面，但是我不下载，又切回到app里面，发现弹出框就不跳了，其实也简单，就是appdelegate里面有个代理方法，就是当app从后台切到前台走的方法，将强制更新方法在这里面在调用一下就行了~~~话不多说，上代码！！！用的话直接粘贴复制~

在appdelegate里面写下面代码

//提示版本更新 [self VersonUpdate]; #pragma mark ------提示用户版本更新------ -(void)VersonUpdate{ //定义app地址 NSString *urld = [NSString stringWithFormat:@"http://itunes.apple.com/lookup?id=%d",1178114725]; NSURL *url = [NSURL URLWithString:urld]; NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:10]; [request setHTTPMethod:@"POST"]; NSURLSession *session = [NSURLSession sharedSession]; NSURLSessionDataTask *task = [session dataTaskWithURL:url completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) { NSLog(@"%@",response); NSMutableDictionary *receiveStatusDic = [[NSMutableDictionary alloc]init]; if (data) { NSDictionary *receiveDic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil]; if ([[receiveDic valueForKey:@"resultCount"] intValue] > 0) { [receiveStatusDic setObject:@"1" forKey:@"status"]; [receiveStatusDic setObject:[[[receiveDic valueForKey:@"results"] objectAtIndex:0] valueForKey:@"version"] forKey:@"version"]; [self performSelectorOnMainThread:@selector(receiveData:) withObject:receiveStatusDic waitUntilDone:NO]; }else{ [receiveStatusDic setValue:@"1" forKey:@"status"]; }else{ [receiveStatusDic setValue:@"-1" forKey:@"status"]; [task resume]; -(void)receiveData:(id)sender //获取APP自身版本号 NSString *localVersion = [[[NSBundle mainBundle]infoDictionary]objectForKey:@"CFBundleShortVersionString"]; NSArray *localArray = [localVersion componentsSeparatedByString:@"."];//1.0 NSArray *versionArray = [sender[@"version"] componentsSeparatedByString:@"."];//3 2.1.1 // if ((versionArray.count == 2) && (localArray.count == versionArray.count)) { if ([localArray[0] intValue] < [versionArray[0] intValue]) { [self updateVersion]; }else if ([localArray[0] intValue] == [versionArray[0] intValue]){ if ([localArray[1] intValue] < [versionArray[1] intValue]) { [self updateVersion]; }else if ([localArray[1] intValue] == [versionArray[1] intValue]){ if ([localArray[2] intValue] < [versionArray[2] intValue]) { [self updateVersion]; // } -(void)updateVersion{ NSString *msg = [NSString stringWithFormat:@"版本过低，需要升级到最新版本"]; UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"升级提示" message:msg preferredStyle:UIAlertControllerStyleAlert]; UIAlertAction *otherAction = [UIAlertAction actionWithTitle:@"现在升级" style:UIAlertActionStyleDestructive handler:^(UIAlertAction*action) { NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"https://itunes.apple.com/cn/app/m-help/id1178114725?mt=8"]]; [[UIApplication sharedApplication]openURL:url]; [alertController addAction:otherAction]; [self.window.rootViewController presentViewController:alertController animated:YES completion:nil]; //当app从后台切到前台时调用的方法 - (void)applicationDidBecomeActive:(UIApplication * )application [self VersonUpdate];

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。

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