iOS 从 UIWebView 移除阴影

Question

我正在尝试移除加载和显示 .pdf 文件的 UIWebView 周围的阴影。我曾尝试实现 2010 年至 2013 年间发布的解决方案，但没有成功。我尝试过的解决方案包括:

self.contentWebView.layer.shadowOpacity = 0.0;
    for (UIView* view in self.contentWebView.subviews)
    {
        view.layer.shadowOpacity = 0.0;
    }

    for (UIView* shadowView in [self.contentWebView.scrollView subviews])
    {
        if ([shadowView isKindOfClass:[UIImageView class]]) {
            [shadowView setHidden:YES];
        }
    }

谢谢。

Answer 1

可能 duplicate of this ？很多解决方案，但最近的是:

[[NSUserDefaults standardUserDefaults] setBool:NO forKey:@"WebKitDiskImageCacheEnabled"];
[[NSUserDefaults standardUserDefaults] synchronize];

得票多的老一辈是:

-(void)viewDidLayoutSubviews {
    [super viewDidLayoutSubviews];

    // Assuming self.webView is our UIWebView
    // We go though all sub views of the UIWebView and set their backgroundColor to white
    UIView *v = self.webView;
    while (v) {
        v.backgroundColor = [UIColor whiteColor];
        v = [v.subviews firstObject];
    }
}