How to change the website in webview with a button in Android

Question

I have a webview that by default loads a YouTube page. Then I have a editview and a button. I want to key in another website (for example, http://www.google.com) in the editview and when I click the button, the webview will change to the website.

But it will refresh and keep it on YouTube. I tried to change the setDesktopMode() in the onClick(), and it worked. How can I fix it?

Here is my Java code.

public class MainActivity extends AppCompatActivity {

    String Url;
    //Main code
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //Perform web view
        final WebView webview = (WebView) findViewById(R.id.webview);
        Url = "http://www.youtube.com";
        WebSettings webSettings = webview.getSettings();
        webSettings.setJavaScriptEnabled(true);
        //setContentView(webview);
        webview.setWebViewClient(new WebViewClient());
        webview.loadUrl(Url);
        setDesktopMode(webview, true);

        final EditText text1 = (EditText) findViewById(R.id.text1);
        Button ok = (Button)findViewById(R.id.ok);
        ok.setOnClickListener(new Button.OnClickListener() {
            @Override
            public void onClick(View view) {
                Url = text1.getText().toString();
                webview.clearCache(true);
                webview.loadUrl(Url);
                //webview.reload();
                setDesktopMode(webview, true);
                //return;

            }
        });
    }

    public void setDesktopMode(WebView webView, boolean enabled){
        String newUserAgent = webView.getSettings().getUserAgentString();
        if(enabled){
            try{
                String ua = webView.getSettings().getUserAgentString();
                String androidOSString = webView.getSettings().getUserAgentString().substring(ua.indexOf("("), ua.indexOf(")") + 1);
                newUserAgent = webView.getSettings().getUserAgentString().replace(androidOSString, "(X11; Linux x86_64)");
            } catch (Exception e){
                e.printStackTrace();
            }
        } else {
            newUserAgent = null;
        }

        webView.getSettings().setUserAgentString(newUserAgent);
        webView.getSettings().setUseWideViewPort(enabled);
        webView.getSettings().setLoadWithOverviewMode(enabled);
        webView.reload();
    }

}

Answer 1

Some changes to the above code:

    Button button = findViewById(R.id.button);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {

            EditText ed = findViewById(R.id.editText);
            webView.loadUrl(null);
            webView.clearCache(true);
            setDesktopMode(webView, true);
            webView.loadUrl(ed.getText().toString());
            //webview.reload();

        }
    });

In the set desktop method, remove the reload line.

public void setDesktopMode(WebView webView, boolean enabled){
    String newUserAgent = webView.getSettings().getUserAgentString();
    if(enabled){
        try{
            String ua = webView.getSettings().getUserAgentString();
            String androidOSString = webView.getSettings().getUserAgentString().substring(ua.indexOf("("), ua.indexOf(")") + 1);
            newUserAgent = webView.getSettings().getUserAgentString().replace(androidOSString, "(X11; Linux x86_64)");
        } catch (Exception e){
            e.printStackTrace();
        }
    } else {
        newUserAgent = null;
    }

    webView.getSettings().setUserAgentString(newUserAgent);
    webView.getSettings().setUseWideViewPort(enabled);
    webView.getSettings().setLoadWithOverviewMode(enabled);
   // webView.reload();
}

It work perfectly now.