blocks|key|1158245|text|为了让链接起作用，你必须在你的设备/模拟器上安装市场应用程序。此外，您的应用程序还需要请求访问网络的权限。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1158246|UPD:作为一种变通方法，您可以从webview中调用java代码，例如，如果您生成如下链接：|1158247|<a+href="javascript:go('market://your.path.to.market.app')">..</a>|code-block|syntax|javascript|1158248|定义一个名为go()的javascript函数：|1158249|<script+type="text/javascript">
+++function+go(link)+{
+++++if+(handler)+{
+++++++++++handler.go(link);
+++++++++}+else+{
+++++++++++document.location+=+link;
+++++++++}
+++}
</script>|1158250|然后，您可以将一个处理程序对象传入WebView：|1158251|webview.addJavascriptInterface(new+Handler()+{
++++++++@Override
++++++++public+void+go(String+marketUrl)+{
+++++++++++++++++++++++++//start+market+intent+here
++++++++}
++++},++"handler");|1158252|处理程序接口可以定义如下：|1158253|+++public+interface+Handler{

++++public+void+go(String+url);

}|1158254|entityMap^0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|Z|8|@]|9|@]|A|$]]|$1|K|3|L|5|F|7|10|8|@]|9|@]|A|$G|H]]|$1|M|3|N|5|6|7|11|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|12|8|@]|9|@]|A|$G|H]]|$1|Q|3|R|5|6|7|13|8|@]|9|@]|A|$]]|$1|S|3|T|5|F|7|14|8|@]|9|@]|A|$G|H]]|$1|U|3|-4|5|6|7|15|8|@]|9|@]|A|$]]]|V|$]]

For the links to work you have to have the market app installed on your device/emulator.
Also your app need to request a permission to access network.

UPD:
as a workaround you can call java code from within the webview, for example if you generate links like this:

<pre><code>&lt;a href="javascript:go('market://your.path.to.market.app')"&gt;..&lt;/a&gt;
</code></pre>

Define a javascript function named go():

<pre><code>&lt;script type="text/javascript"&gt;
 function go(link) {
 if (handler) {
 handler.go(link);
 } else {
 document.location = link;
 }
 }
&lt;/script&gt;
</code></pre>

You then can pass in a handler object into the WebView:

<pre><code>webview.addJavascriptInterface(new Handler() {
 @Override
 public void go(String marketUrl) {
 //start market intent here
 }
 }, "handler");
</code></pre>

Handler interface can be defined as follows:

<pre><code> public interface Handler{

 public void go(String url);

}
</code></pre>

blocks|key|944216|text|对我来说，JavaScript并不是一个解决方案，因为它不在我的控制之下。因此，如果您需要从应用程序端对此进行控制，那么有一个相对简单的解决方案:从WebViewClient派生并使用WebView.setWebViewClient()注入实现。您需要在WebViewClient实现中覆盖的就是shouldOverrideUrlLoading方法，如下所示：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|944217|public+boolean+shouldOverrideUrlLoading(WebView+view,+String+url)+{
++++if+(url+!=+null+&&+url.startsWith("market://"))+{
++++++++view.getContext().startActivity(
++++++++++++new+Intent(Intent.ACTION_VIEW,+Uri.parse(url)));
++++++++return+true;
++++}+else+{
++++++++return+false;
++++}
}|code-block|syntax|javascript|944218|对我来说，这很好用。|944219|entityMap^0|22|D|2K|Q|3J|D|44|O|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@$9|P|A|Q|B|C]|$9|R|A|S|B|C]|$9|T|A|U|B|C]|$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|X|8|@]|D|@]|E|$I|J]]|$1|K|3|L|5|6|7|Y|8|@]|D|@]|E|$]]|$1|M|3|-4|5|6|7|Z|8|@]|D|@]|E|$]]]|N|$]]

For me the JavaScript thing wasn't a solution as the HTML is not under my control. So if you need to control this from the application side, then there is a relative simple solution: Derive from <code>WebViewClient</code>and inject the implementation using <code>WebView.setWebViewClient()</code>. All you need to override in your <code>WebViewClient</code>implementation is the <code>shouldOverrideUrlLoading</code> method as shown here:

<pre><code>public boolean shouldOverrideUrlLoading(WebView view, String url) {
 if (url != null &amp;&amp; url.startsWith("market://")) {
 view.getContext().startActivity(
 new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
 return true;
 } else {
 return false;
 }
}
</code></pre>

For me this works fine.

blocks|key|944225|text|最简单的解决方案|type|unstyled|depth|inlineStyleRanges|entityRanges|data|944226|+Intent+newApp+=+new+Intent(Intent.ACTION_VIEW,++Uri.parse(URL));
startActivity(newApp);|code-block|syntax|javascript|944227|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Simplest solution 

<pre><code> Intent newApp = new Intent(Intent.ACTION_VIEW, Uri.parse(URL));
startActivity(newApp);
</code></pre>

blocks|key|1158320|text|希望这能对你有所帮助|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1158321|public+boolean+shouldOverrideUrlLoading(WebView+view,+String+url)+
{
++++if+(url.startsWith("market://")%7C%7Curl.startsWith("vnd:youtube")%7C%7Curl.startsWith("tel:")%7C%7Curl.startsWith("mailto:"))
++++{
++++++++Intent+intent+=+new+Intent(Intent.ACTION_VIEW);+
++++++++intent.setData(Uri.parse(url));+
++++++++startActivity(intent);
++++++++return+true;
+++++}
++++else{
++++++++view.loadUrl(url);
++++++++return+true;
++++++++}
}|code-block|syntax|javascript|1158322|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

HOPE THIS HELPS YOU

<pre><code>public boolean shouldOverrideUrlLoading(WebView view, String url) 
{
 if (url.startsWith("market://")||url.startsWith("vnd:youtube")||url.startsWith("tel:")||url.startsWith("mailto:"))
 {
 Intent intent = new Intent(Intent.ACTION_VIEW); 
 intent.setData(Uri.parse(url)); 
 startActivity(intent);
 return true;
 }
 else{
 view.loadUrl(url);
 return true;
 }
}
</code></pre>

blocks|key|944256|text|为我工作：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|944257|webView+=+(WebView)+findViewById(R.id.webView);
webView.setWebChromeClient(new+WebChromeClient());
webView.getSettings().setPluginState(WebSettings.PluginState.ON);
webView.getSettings().setPluginState(WebSettings.PluginState.ON_DEMAND);

webView.setWebViewClient(new+MyWebViewClient());
webView.getSettings().setJavaScriptEnabled(true);

webView.loadUrl("http://myweb.com");

private+class+MyWebViewClient+extends+WebViewClient+{
++++public+boolean+shouldOverrideUrlLoading(WebView+view,+String+url)+{
++++++++if+(url+!=+null+&&+url.startsWith("whatsapp://"))+{
++++++++++++view.getContext().startActivity(
++++++++++++++++++++new+Intent(Intent.ACTION_VIEW,+Uri.parse(url)));
++++++++++++return+true;
++++++++}+else+{
++++++++++++return+false;
++++++++}
++++}
}|code-block|syntax|javascript|944258|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Work for me:

<pre><code>webView = (WebView) findViewById(R.id.webView);
webView.setWebChromeClient(new WebChromeClient());
webView.getSettings().setPluginState(WebSettings.PluginState.ON);
webView.getSettings().setPluginState(WebSettings.PluginState.ON_DEMAND);

webView.setWebViewClient(new MyWebViewClient());
webView.getSettings().setJavaScriptEnabled(true);

webView.loadUrl("http://myweb.com");

private class MyWebViewClient extends WebViewClient {
 public boolean shouldOverrideUrlLoading(WebView view, String url) {
 if (url != null &amp;&amp; url.startsWith("whatsapp://")) {
 view.getContext().startActivity(
 new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
 return true;
 } else {
 return false;
 }
 }
}
</code></pre>

blocks|key|944313|text|这将适用于所有方案，而不是为特定方案添加检查，修改@sven解决方案|type|unstyled|depth|inlineStyleRanges|entityRanges|data|944314|public+boolean+shouldOverrideUrlLoading(WebView+view,+String+url)+{
+String+host=+Uri.parse(url).getHost();
+if+(host+==+null)+{
++++view.getContext().startActivity(new+Intent(Intent.ACTION_VIEW,+Uri.parse(url)));
++++return+true;
+++}

+++view.loadUrl(url);
+++return+false;
+}|code-block|syntax|javascript|944315|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Instead of adding check for particular scheme, Modifying @sven solution, this will work for all schemes

<pre><code>public boolean shouldOverrideUrlLoading(WebView view, String url) {
 String host= Uri.parse(url).getHost();
 if (host == null) {
 view.getContext().startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(url)));
 return true;
 }

 view.loadUrl(url);
 return false;
 }
</code></pre>

I've created a web view app, the page that is displayed features market:// links but upon clicking them I get the 404 screen along with the error that the protocol is not supported. I've tried looking through documentation but was unable to find anything relating to this. Any help is much appreciated.

Support for other protocols in Android webview

我已经创建了一个web视图应用程序，显示的页面具有market://链接，但单击它们时，我会看到404屏幕，并显示协议不受支持的错误。我试着翻阅了文档，但找不到任何与此相关的内容。任何帮助都是非常感谢的。

问在Android webview中支持其他协议
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