Links sometimes not working in WebView

2020-05-01 07:12发布

站内问答 / Android
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On occasion links in the WebView will not respond. The highlight press color will appear around them but nothing happens. I am also using WebViewClient's shouldOverrideUrlLoading and that function is not called when this happens.

Edit:

I have narrowed this issue down to the following circumstances:

  • The webpage is the first page a WebView opens.
  • The webpage uses meta name="viewport" attribute in the html head
  • The WebView is using WebView.getSettings().setUseWideViewPort(true);
  • Android 2.1 (Doesn't appear to happen in later versions, didn't test earlier)

If a webpage meeting those above is opened no links will work. If another similar page is loaded, those links will not work either. It is not until you load a page without meta name="viewport" that links start to work. After a page without that meta attribute is opened and then you load a page with the meta viewport attribute, the links start working.

2条回答
小情绪 Triste *
2楼-- · 2020-05-01 07:13

This seems like a ridiculous work around but I guess it works. The first time the WebView loads, if you load a blank dummy html file like

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title></title>
</head>
<body>
</body>
</html>

before you load anything else, it appears to fix the problem. It also looks like the dummy file has to load completely first, not just start loading.

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Explosion°爆炸
3楼-- · 2020-05-01 07:34

Just a follow up on this problem : The op solution did not work for me. But I had setLongClickable set to false on the WebView and it completely stopped the WebView to respond to touch events but only on Android 2.1.

Removing the line : 

webview.setlongclickable(false);

made the WebView responsive and working as expected again.

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