在HTML按钮上打开Android活动，然后在网络视图中单击 [英] Open Android activity on HTML button click in web view
本文介绍了在HTML按钮上打开Android活动，然后在网络视图中单击的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有一个Android程序，可以在网络视图中显示HTML页面.HTML页面在本地存在于"asset/www/index.html"中.
I have an Android program to display an HTML page in a web view. The HTML page exists locally in "asset/www/index.html".
我想在HTML页面上放置一个按钮，并在单击按钮时打开一个新活动.
I want to put a button on the HTML page and open a new activity when the button is clicked.
这是Java代码:
public class HelloWebApp extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
WebView webView = (WebView)findViewById(R.id.webView);
webView.getSettings().setJavaScriptEnabled(true);
webView.setWebChromeClient(new WebChromeClient());
webView.loadUrl("file:///android_asset/www/index.html");
}
}
推荐答案
您必须像下面这样从html传递按钮单击的URL，
You have to pass url on button click from html like below,
index.html
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width; user-scalable=0;" />
<script type="text/javascript" charset="utf-8" src="jquery-2.0.0.min.js"></script>
<script type="text/javascript" charset="utf-8" src="quantize.js"></script>
<title>My HTML</title>
</head>
<body>
<h1>My HTML</h1>
<INPUT TYPE="button" value="Test" onClick="window.location='Navigation://OpenNativeScreen'">
</body>
</html>
现在，单击按钮后，您将在Web视图的 shouldOverrideUrlLoading 方法中获得该网址.请参见以下代码，
Now you will get the that url in shouldOverrideUrlLoading method of web view when button click.see the below code,
MainActivity.java
public class MainActivity extends Activity {
WebView myBrowser;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.dropdown_html);
myBrowser = (WebView) findViewById(R.id.mybrowser);
myBrowser.setWebViewClient(new MyBrowser());
myBrowser.getSettings().setJavaScriptEnabled(true);
myBrowser.loadUrl("file:///android_asset/www/index.html");
}
private class MyBrowser extends WebViewClient {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
if (url.equals("Navigation://OpenNativeScreen")) {
startActivity(new Intent(MainActivity.this,SecondActivity.class));
finish();
return true;
}
return false;
}
}
}
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