java 从android的webview访问JSON响应
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Access the JSON response from webview of android
提问by Chitresh Verma
On Android, I have a webView. I'm loading a urlon it. Firstly, I get a login page of Facebookand after filling login details it gives me a JSON Responseon same webView.
在 Android 上，我有一个webView. 我正在加载url它。首先，我得到一个登录页面，Facebook在填写登录详细信息后，它给了我一个JSON Response相同的webView.
I'm using this code to load that URLbut now I don't know how to get that JSON Responsein a stringwhat I got on finished of that url.
我正在使用此代码来加载它，URL但现在我不知道如何JSON Response在string我完成的内容中获得它url。
WebViewClient yourWebClient = new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return false;
}
@Override
public void onPageFinished(WebView view, String url) {
wb.loadUrl("javascript:window.HTMLOUT.processHTML('<head>'+document.getElementsByTagName('html')[0].innerHTML+'</head>');");
}
};
wb = (WebView) findViewById(R.id.webview);
wb.getSettings().setJavaScriptEnabled(true);
wb.getSettings().setSupportZoom(true);
wb.getSettings().setBuiltInZoomControls(true);
wb.setWebViewClient(yourWebClient);
wb.loadUrl("http://pqrs.abcde.com/facebook");
The format of JSON Responseis:
的格式JSON Response是：
{"status":"success","msg":"You have successfully logged in."}
回答by Chitresh Verma
Build a class called MyJavaScriptInterface. And MyJavaScriptInterface to WebView.
构建一个名为 MyJavaScriptInterface 的类。和 MyJavaScriptInterface 到 WebView。
WebViewClient yourWebClient = new WebViewClient() {
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
return false;
}
@Override
public void onPageFinished(WebView view, String url) {
wb.loadUrl("javascript:HtmlViewer.showHTML" +
"('<html>'+document.getElementsByTagName('html')[0].innerHTML+'</html>');");
}
};
wb = (WebView) findViewById(R.id.webview);
wb.getSettings().setJavaScriptEnabled(true);
wb.getSettings().setSupportZoom(true);
wb.getSettings().setBuiltInZoomControls(true);
wb.setWebViewClient(yourWebClient);
wb.loadUrl("http://pqrs.abcde.com/facebook");
wb.addJavascriptInterface(new MyJavaScriptInterface(this), "HtmlViewer");
class MyJavaScriptInterface {
private Context ctx;
MyJavaScriptInterface(Context ctx) {
this.ctx = ctx;
}
@JavascriptInterface
public void showHTML(String html) {
System.out.println(html);
}
}
Note: From you are required to remove window in wb.loadUrl("javascript:...");. And @JavascriptInterface before "public void showHTML".
注意：您需要从 wb.loadUrl("javascript:..."); 中删除窗口。以及“public void showHTML”之前的@JavascriptInterface。
You can get content from showHtml(..) in html parameter.
您可以从 html 参数中的 showHtml(..) 获取内容。
回答by Manju S B
webView.setWebViewClient(new myWebClient());
webView.getSettings().setJavaScriptEnabled(true);
webView.loadUrl(webdata);
}
public class myWebClient extends WebViewClient {
@Override
public void onPageStarted(WebView view, String url, Bitmap favicon) {
// TODO Auto-generated method stub
super.onPageStarted(view, url, favicon);
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
view.loadUrl(url);
return true;
}
}
