以编程方式滚动对 UIWebView 没有影响

Question

我有以下 UIWebView 实现，我想在加载 webview 后设置滚动。但是，以编程方式滚动对 UIWebView.

没有影响

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    NSString *urlAddress = @"http://www.xxxx.com/private-dining";

    //Create a URL object.
    NSURL *url = [NSURL URLWithString:urlAddress];

    //URL Requst Object
    NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];

    //Load the request in the UIWebView.
    [privateDiningWebView loadRequest:requestObj];

    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, 1 * NSEC_PER_SEC), dispatch_get_main_queue(), ^{
        privateDiningWebView.scrollView.contentOffset = CGPointMake(0, 300);
    });
}

Answer 1

您可以为 UIWebview 设置委托并尝试此代码：

- (void)webViewDidFinishLoad:(UIWebView *)webView {
     privateDiningWebView.scrollView.contentOffset = CGPointMake(0, 300);
}

Answer 2

您需要在 webView 完成加载网页内容时调用它。

别忘了在你里面加上UIWebViewDelegate ViewController

  – webViewDidFinishLoad:(UIWebView *)webView
    {
     // UI Operation should be Done in Main Queue so you need to get 
     // main Queue to Access your webView
     dispatch_async(dispatch_get_main_queue(), ^{
         privateDiningWebView.scrollView.contentOffset = CGPointMake(0, 300);

      });

    }

以编程方式滚动对 UIWebView 没有影响

Scroll programmatically has no effect on UIWebView

uiwebview

ios