class ContentLoader {
@JavascriptInterface
public void load(String body) {
// do something
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
WebView webView = createWebView();
webView.loadUrl("https://www.somedoamin.com/product.jsp");
// enable javascript
webView.getSettings().setJavaScriptEnabled(true);
// add interface
webView.addJavascriptInterface(new ContentLoader(), "ContentLoader");
webView.setWebViewClient(new WebViewClient() {
int action;
@Override
public void onPageFinished(WebView view, String url) {
switch (action) {
case 0:
// fill field and submit
view.loadUrl("javascript:{\n" +
"\tdocument.querySelector('input[name=cgi_tel_no]').value='12345678';\n" +
"\tdocument.querySelector('input[name=cgi_id_no]').value='abcdef';\n" +
"\tsubmitMyForm();\n" +
"};");
case 1:
// get content from 'ContentLoader' interface
view.loadUrl("javascript:{\n" +
"\twindow.ContentLoader.load('<body>'+document.body.innerHTML+'</body>');\t\n" +
"};");
break;
}
action++;
}
});
}
WebView createWebView() {
WindowManager windowManager = (WindowManager) getSystemService(WINDOW_SERVICE);
WindowManager.LayoutParams params = new WindowManager.LayoutParams(WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.WRAP_CONTENT, WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY, WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE, PixelFormat.TRANSLUCENT);
params.gravity = Gravity.TOP | Gravity.LEFT;
params.x = 0;
params.y = 0;
params.width = 0;
params.height = 0;
LinearLayout layout = new LinearLayout(this);
layout.setLayoutParams(new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, RelativeLayout.LayoutParams.MATCH_PARENT));
WebView view = new WebView(this);
view.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.MATCH_PARENT));
layout.addView(view);
windowManager.addView(layout, params);
return view;
}