如何将动态字符串传递给Webview？

Question

我正在研究一个从firebase获得价值并推入webview html的项目。但是我一步一步地前进。而且我还没有连接firebase。因为首先我需要将动态字符串传递到html。我可以在class和html之间传递字符串值。但是问题是如何传递动态变化的字符串？

public class smdene extends AppCompatActivity {
WebView wvContent;
String soma = "sas";

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.smdene);





    WebView wvContent = (WebView) findViewById(R.id.wv_html_content);
    WebSettings webSettings = wvContent.getSettings();
    webSettings.setJavaScriptEnabled(true);
    wvContent.setWebViewClient(new WebViewClient() {
        @Override
       public void onPageFinished (WebView view, String url) {
            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.KITKAT) {
               // view.evaluateJavascript("loadMsg('How are you today!')'"+soma+"'", null);
                view.loadUrl("javascript:loadMsg('How are you today!'+'"+soma+"')", null);
            } else {
                //view.loadUrl("javascript:loadMsg('How are you today!')'"+soma+"'");
                view.loadUrl("javascript:loadMsg('How are you today!'+'"+soma+"')");

            }
        }


     });
        wvContent.loadUrl("file:///android_asset/lola.html");

/**I tried to change value with click**/

        findViewById(R.id.dokan).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                //createUser();
                soma = "simo";
            }
        });


    }









}