Access the JSON response from webview of android
19,368
Build a class called MyJavaScriptInterface. And MyJavaScriptInterface to 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".
You can get content from showHtml(..) in html parameter.
Author by
Admin
Updated on July 24, 2022Comments
-
Admin almost 2 years
On Android, I have a
webView. I'm loading aurlon it. Firstly, I get a login page ofFacebookand after filling login details it gives me aJSON Responseon samewebView.I'm using this code to load that
URLbut now I don't know how to get thatJSON Responsein astringwhat I got on finished of thaturl.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:{"status":"success","msg":"You have successfully logged in."}