Webview in Android which works in 4.2+ and not in 2.3.3 -

application works in android 4.2.2 using webview javascriptinterface not working in android 2.3.3.

it has targetsdkversion="19"

and build property 4.2

i have created emulator 2.3.3 , device 3.7" wvga.

oncreate here -

@javascriptinterface @override protected void oncreate(bundle savedinstancestate) {     super.oncreate(savedinstancestate);     setcontentview(r.layout.activity_main);      vwebview = (webview) findviewbyid(r.id.vwebview);     btnview = (button) findviewbyid(r.id.btnview);     txtview = (textview) findviewbyid(r.id.txtview);      vwebview.setwebchromeclient(new webchromeclient());     vwebview.setwebviewclient(new webviewclient());      try {         if ("2.3".equals(build.version.release)) {          javascriptinterfacebroken = true;         }         } catch (exception e) {         // ignore, , assume user javascript interface working correctly.         }          // add javascript interface if it's not broken         if (!javascriptinterfacebroken) {             vwebview.addjavascriptinterface(new jscriptinterface(),                     "androidfunction");         }        websettings websetting = vwebview.getsettings();     websetting.setjavascriptenabled(true);     log.d("main", "called");     vwebview.loadurl("file:///android_asset/sample.html");     btnview.setonclicklistener(new onclicklistener() {          @override         public void onclick(view v) {             // todo auto-generated method stub              //vwebview.loadurl("javascript:showandroidtoast('hello')");             try{             runonuithread(new runnable() {                 @override                 public void run() {                     vwebview.loadurl("javascript:showandroidtoast('hello')");                 }             });         }         catch(exception ee){             log.d("exception", "called" + ee.tostring());          }         }     });  } 

jsinterface -

public class jscriptinterface {      public jscriptinterface() {         // todo auto-generated constructor stub     }        public void showtoast(string toast) {         try{         log.d("js", "called" + toast);         // txtview.settext(toast);         toast.maketext(mainactivity.this, toast, toast.length_long).show();         }         catch(exception ee){             toast.maketext(mainactivity.this, ee.tostring(), toast.length_long).show();           }     }    } 

i think might have bumped this known issue. , here's how work around it: handling android 2.3 webview’s broken addjavascriptinterface

credits original poster here

in future, consider describing issues in more details. "which not working" not give idea of problem, googled "javascriptinterface 2.3.3" -- again, have done yourself.

upd need put methods workaround overrides webviewclient. code, should this:

vwebview.setwebchromeclient(new webchromeclient());  try {    if ("2.3".equals(build.version.release)) {       javascriptinterfacebroken = true;    } } catch (exception e) {    // ignore, , assume user javascript interface working correctly. } // add javascript interface if it's not broken if (!javascriptinterfacebroken) {     vwebview.addjavascriptinterface(new jscriptinterface(),             "androidfunction"); }  if (!javascriptinterfacebroken) vwebview.setwebviewclient(new webviewclient()); else {     vwebview.setwebviewclient(new webviewclient() {         // , here put code article         @override         public void onpagefinished(webview view, string url) { ... }          @override         public boolean shouldoverrideurlloading(webview view, string url) { ... }     }); }