ios - WebView 内容未正确缩放

Question

我正在尝试在 UIWebView 中加载一些内容，但它没有正确显示。 我在 webview 周围画了一条红边，它的位置是正确的。但正如您所见，内容上方有一个灰色条。

我的 viewDidLoad webview 中有以下代码:

productEnergyDetailWebview = [[UIWebView alloc]init];
productEnergyDetailWebview.delegate = self;
productEnergyDetailWebview.scalesPageToFit = YES;
productEnergyDetailWebview.opaque = YES;
[productEnergyDetailWebview setUserInteractionEnabled:true];
productEnergyDetailWebview.autoresizesSubviews = YES;
productEnergyDetailWebview.scrollView.bounces = false;
productEnergyDetailWebview.scrollView.scrollEnabled = false;

更多代码:

- (void)webViewDidFinishLoad:(UIWebView *)webView {
    [topBar removeFromSuperview];
    [self createViews];
    [productEnergyDetailWebview setScalesPageToFit:YES];
    [refreshIndicator stopAnimating];
    [refreshIndicator removeFromSuperview];
    [productEnergyDetailWebview setHidden:false];
}





-(void)createViews{
        productEnergyDetailWebview.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
        if(selectedRange != 5 && selectedRange != 4){
            //Add the bar above the detailWebView
            [self createTopBar];
            int xLocation = topBar.frame.size.height + topBar.frame.origin.y;
                [productEnergyDetailWebview setFrame:CGRectMake(self.view.frame.origin.x, xLocation, self.view.frame.size.width, (self.view.frame.size.height - xLocation) - 50)];
                [productEnergyDetailWebview setScalesPageToFit:YES];
                [productEnergyDetailWebview setContentMode:UIViewContentModeScaleAspectFill];
            }

        productEnergyDetailWebview.scrollView.bounces = false;
        productEnergyDetailWebview.scrollView.scrollEnabled = false;
        [productEnergyDetailWebview setUserInteractionEnabled:true];

    }

谁能告诉我在这种情况下我做错了什么？谢谢

Answer 1

试试这个

self.automaticallyAdjustsScrollViewInsets = NO;

在你的viewDidLoad

编辑:

以上答案不适用于 iOS9

这solution from NKorotkov作品:

if (__iOS_9_OR_GREATER__) {

    CGFloat topInset = 20;

    if (self.navigationController) {
        topInset += self.navigationController.navigationBar.bounds.size.height;
    }

    UIEdgeInsets insets = UIEdgeInsetsMake(topInset, 0, 0, 0);

    self.collectionView.contentInset = insets;
    self.collectionView.scrollIndicatorInsets = insets;

}