xcode UIWebView - 加载内容前的白色背景
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UIWebView - white background before loading content
提问by
I have a question. I have a menu, when I click on it, it will load content remotely from URL via UIWebView.
我有个问题。我有一个菜单，当我点击它时，它将通过 UIWebView 从 URL 远程加载内容。
When I try on simulator, before loading the content, there's a white background and then loads my HTML Page (which has dark background)
当我在模拟器上尝试时，在加载内容之前，有一个白色背景，然后加载我的 HTML 页面（具有深色背景）
Demo:
演示：
You can see that white flash, when I click on "KALENDER"
当我点击“KALENDER”时，你可以看到白色的闪光
How can I fix this issue?
我该如何解决这个问题？
My UIWebView looks like this:
我的 UIWebView 看起来像这样：
let myWebView:UIWebView = UIWebView(frame: CGRectMake(0, 0, UIScreen.mainScreen().bounds.width, UIScreen.mainScreen().bounds.height))
myWebView.loadRequest(NSURLRequest(URL: NSURL(string: "http://website.com/test.html")!))
self.view.addSubview(myWebView)
Thank you!
谢谢！
回答by
So, what I did, is, added:
所以，我所做的是，补充说：
myWebView.opaque = false
myWebView.backgroundColor = UIColor.clearColor()
and at controller, I unchecked this from "View"
在控制器上，我从“查看”中取消选中
回答by Nirav Gadhiya
You cannot set background color to your webView.
您不能为 webView 设置背景颜色。
You should try following steps:
您应该尝试以下步骤：
1. write following in your viewDidLoad - Setting delegate and hiding webView.
1. 在您的 viewDidLoad 中写入以下内容 - 设置委托和隐藏 webView。
webView.delegate = self
webView.hidden = YES
2. Write delegate - shouldStartLoadWithRequest- hiding webView when loading starts.
2.编写delegate——shouldStartLoadWithRequest加载开始时隐藏webView。
func webView(webView: UIWebView!, shouldStartLoadWithRequest request: NSURLRequest!, navigationType: UIWebViewNavigationType) -> Bool {
webView.hidden = YES
return true;
}
3. Write delegate - webViewDidFinishLoad- Show webView when loading Ends.
3.写delegate - webViewDidFinishLoad- 加载Ends时显示webView。
func webViewDidFinishLoad(webView: UIWebView!) {
webView.hidden = NO
print("Webview did finish load")
}
Hope this will help you....
希望能帮到你....
回答by Matthias Bauch
You could load your own html document, which uses the color you need.
您可以加载自己的 html 文档，该文档使用您需要的颜色。
override func viewWillAppear(animated: Bool) {
super.viewWillAppear(animated)
let htmlString = "<html><body bgcolor=\"#ABCDEF\"></body></html>"
webView.loadHTMLString(htmlString, baseURL: nil)
}
