iOS - 跳转App Store下载 app 的两种方式

/// 跳转
@objc func click1() {
   let url = URL(string: "itms-apps://itunes.apple.com/app/id 1142110895")
   // 注意: 跳转之前, 可以使用 canOpenURL: 判断是否可以跳转
   if !UIApplication.shared.canOpenURL(url!) {
       // 不能跳转就不要往下执行了
       return
   }
   if #available(iOS 10.0, *) {
       UIApplication.shared.open(url!, options: [:]) { (success) in
           if (success) {
               print("10以后可以跳转url")
           }else{
               print("10以后不能完成跳转")
           }
       }
    } else {
       // Fallback on earlier versions
       let success = UIApplication.shared.openURL(url!)
       if (success) {
           print("10以下可以跳转")
       }else{
           print("10以下不能完成跳转")
       }
    }
}

- (void)click1 {
    NSURL *url = [NSURL URLWithString:@"itms-apps://itunes.apple.com/app/id1142110895"];
    if (@available(iOS 10.0, *)){
         [[UIApplication sharedApplication]openURL:url options:@{UIApplicationOpenURLOptionsSourceApplicationKey:@YES} completionHandler:^(BOOL success) {
             if (success) {
                 NSLog(@"10以后可以跳转url");
             }else{
                 NSLog(@"10以后不可以跳转url");
             }
         }];
     }else{
         BOOL success = [[UIApplication sharedApplication]openURL:url];
         if (success) {
              NSLog(@"10以前可以跳转url");
         }else{
              NSLog(@"10以前不可以跳转url");
         }
     }
 }

@objc func click2() {
  let storeProductVC = StoreKit.SKStoreProductViewController()
  storeProductVC.delegate = self
  let dict = [SKStoreProductParameterITunesItemIdentifier: "1142110895"]
  storeProductVC.loadProduct(withParameters: dict) { (result, error) in
     guard error == nil else {
          return
     }
   }
   present(storeProductVC, animated: true, completion: nil)
}

extension ViewController: SKStoreProductViewControllerDelegate {
    func productViewControllerDidFinish(_ viewController: SKStoreProductViewController) {
         viewController.dismiss(animated: true, completion: nil)
    }
}

//2:实现代理SKStoreProductViewControllerDelegate
SKStoreProductViewController *storeProductViewContorller = [[SKStoreProductViewController alloc] init];
storeProductViewContorller.delegate = self;
//加载一个新的视图展示
[storeProductViewContorller loadProductWithParameters: @{SKStoreProductParameterITunesItemIdentifier : @"1142110895"} completionBlock:^(BOOL result, NSError *error) {
    //回调
    if(error){
         NSLog(@"错误%@",error);
    }else{
        //应用界面
        [self presentViewController:storeProductViewContorller animated:YES completion:nil];
    }
}];

- (void)productViewControllerDidFinish:(SKStoreProductViewController *)viewController{
    [self dismissViewControllerAnimated:YES completion:nil];
}