objective-c IOS應用更新

當前蘋果已經禁止了，通過IOS應用直接跳轉APP下載鏈接的方法。但是仍然可以使用另外一種方法直接跳轉AppStore。

這種方法需要增加一個類庫StoreKit.framework。 這裡使用這功能是為用戶提供更新，下麵說下我實現這個功能的詳細步驟。

一、增加一個網頁到伺服器上去，title增加你當前APP的版本號。

二、在viewDidLoad裡面增加UIWebView載入伺服器上增加的網頁,並獲取當前版本號       

    1:下麵是是uiwebview 載入網頁的代碼

-(void)viewDidLoad
{
    [super viewDidLoad];
   BeeUIWebView* getVersionWebView=[[BeeUIWebView alloc]initWithFrame:CGRectMake(0, 0, 100, 100)];
     getVersionWebView.backgroundColor = [UIColor redColor];
    getVersionWebView.scalesPageToFit =YES;
     NSString *pagePath=[NSString stringWithFormat:@"http://www.jmfww.com/Mobile/iosVersionInfo.html"];
 NSURL    *url =[[NSURL alloc] initWithString: pagePath];
    NSURLRequest *request =  [[NSURLRequest alloc] initWithURL:url];
    getVersionWebView.delegate=self;
    [getVersionWebView loadRequest:request];
    
}

   2:uiwebview代理

- (void)webViewDidFinishLoad:(UIWebView *)webView
{

    NSString  *value= [webView stringByEvaluatingJavaScriptFromString:@"document.title"];
    NSArray *VersionAndStoreLoadUrlArray= [value componentsSeparatedByString:@","];
    
    NSString *Version=[VersionAndStoreLoadUrlArray objectAtIndex:1];
     NSDictionary *infoDictionary = [[NSBundle mainBundle] infoDictionary];
        // app名稱
      //  NSString *app_Name = [infoDictionary objectForKey:@"CFBundleDisplayName"];
        // app版本
        NSString *app_Version = [infoDictionary objectForKey:@"CFBundleShortVersionString"];
    
        if (![app_Version isEqualToString:Version]) {
         
            showMessage(@"請前往AppStore下載最新版本");
            
              [self openAppStore:@"932016124"];
            
        }
}

二、SKStoreProductViewController

//首先引入SKStoreProductViewController代理SKStoreProductViewControllerDelegate
 //跳轉APPSTORE的方法
-(void)openAppStore:(NSString *)appId{
    SKStoreProductViewController *storeProducVC=
    [[SKStoreProductViewController alloc]init];
    storeProducVC.delegate=self;
    NSDictionary *dict=[NSDictionary dictionaryWithObject:appId forKey:SKStoreProductParameterITunesItemIdentifier];
    
    [storeProducVC loadProductWithParameters:dict completionBlock:^(BOOL result, NSError * _Nullable error) {
        if (result) {
            [self  presentViewController:storeProducVC animated:YES completion:nil];
            
        }
    }];
    

}

//SKStoreProductViewController返回代理
-(void)productViewControllerDidFinish:(SKStoreProductViewController *)viewController
{
    [viewController dismissViewControllerAnimated:YES completion:nil];
}