Sending data from native android to webview javascript page reloads the webpage

Question

I am showing a new registration form(javascript page) consisting of 3 pages on android webview and then on 4th page on button click inside javascript page, I compute something and pass some data from android to webview.

The problem is when I send data to webview page from android, it changes the state of the webview and all the previous form data gets erased.

I am passing data from android to javascript page like below:

webView.evaluateJavascript("javascript:getData(" + data + ")",null);

I think this line reloads the webpage again but I am not sure.

Can anyone tell how can I achieve this without changing the state of webview? Any help would be much appreciated. Thanks

Answer 1

不要在evaluateJavascript()中使用javascript:方案，只需传递您要执行的实际 JS。

webView.evaluateJavascript("getData(" + data + ")", null /* callback */);

Answer 2

you can just do

webView.loadUrl("javascript:getData('" + data  + "')"); 

1. same getdata method should be present on web side