app升級策略

直接上代碼：

/**
 *  檢測軟件是否需要升級
 */
-(void)checkVersion
{
    NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://itunes.apple.com/cn/lookup?id=%i",iFeverAPPID]];
    ASIHTTPRequest *request = [[ASIHTTPRequest alloc]initWithURL:url];
    [request setUseCookiePersistence:YES];
    [request setDelegate: self];
    [request setDidFailSelector:@selector(getVersionRequestFailed:)];
    [request setDidFinishSelector:@selector(getVersionRequestSuccess:)];
    [request startAsynchronous];//開始異步請求
}

-(void)getVersionRequestFailed:(ASIHTTPRequest *)request1
{
    NSLog(@"從AppStore獲取版本信息失敗！！");
}

-(void)getVersionRequestSuccess:(ASIHTTPRequest *)request1
{
    NSString *newVersion;
    NSData *responseData = [request1 responseData];
    NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:responseData options:NSJSONReadingAllowFragments error:nil];
    NSArray *resultArray = [dic objectForKey:@"results"];
    for (id config in resultArray) {
        newVersion = [config valueForKey:@"version"];
    }
    if (newVersion) {
        NSLog(@"通過AppStore獲取的版本號是：%@",newVersion);
    }
    //獲取本地版本號
    NSString *localVersion = [[[NSBundle mainBundle]infoDictionary]objectForKey:@"CFBundleVersion"];
    NSString *msg = [NSString stringWithFormat:@"你當前的版本是V%@，發現新版本V%@，是否下載新版本？",localVersion,newVersion];
    if ([newVersion floatValue] > [localVersion floatValue]) {
        UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"升級提示!" message:msg delegate:self cancelButtonTitle:@"下次再說" otherButtonTitles:@"現在升級", nil nil];
        alert.tag = kVersionNeedUpdateAlertTag;
        [alert show];
    }
}

-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
    if (alertView.tag == kVersionNeedUpdateAlertTag) {
        //軟件需要更新提醒
        if (buttonIndex == 1) {
            NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"https://itunes.apple.com/cn/app/wan-zhuan-quan-cheng/id%i?mt=8",iFeverAPPID]];
            [[UIApplication sharedApplication]openURL:url];
            /*
             // 打開iTunes 方法二:此方法總是提示“無法連接到itunes”，不推薦使用
             NSString *iTunesLink = @"itms-apps://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftwareUpdate?id=%i&mt=8";
             NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"itms-apps://phobos.apple.com/WebObjects/MZStore.woa/wa/viewSoftwareUpdate?id=%i&mt=8",iFeverAPPID]];
             [[UIApplication sharedApplication] openURL:url];
             */
        }
    }
}

如果想知道網絡請求AppStore時返回的信息可以打開這個鏈接：http://itunes.apple.com/cn/lookup?id=465039730

參考博文：

iOS appStore中的應用 實現升級功能  http://www.cnblogs.com/ygm900/p/3334586.html

//基於企業級證書的iOS應用打包升級功能介紹

http://blog.csdn.NET/sbvfhp/article/details/10336715

//另一種代碼實現思路

http://hi.baidu.com/wwssttt/item/7446105e3c98fa3933e0a9d5

//向appStore獲取軟件版本的代碼，有步驟

http://blog.csdn.net/wave_1102/article/details/7463697

//向 appstore 查詢已發佈 APP 的信息--純思路

http://hi.baidu.com/yanh105/item/7378a98ffca6a8804414cfa0

//官方幫助文檔

http://www.apple.com/itunes/affiliates/resources/documentation/itunes-store-web-service-search-api.html

//如何改進ios客戶端的升級提醒功能

http://www.cocoachina.com/applenews/devnews/2013/0108/5495.html

//ios項目如何實現版本更新？

http://blog.csdn.Net/mad1989/article/details/8130013

//解決向appStore 發送請求獲取版本，沒有返回信息的問題

http://www.cocoachina.com/ask/questions/show/56158