android - why javascript in webview does not work? -

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page loaded javascript not work! 

  protected void oncreate(bundle savedinstancestate) {             super.oncreate(savedinstancestate);             setcontentview(r.layout.activity_poll);              device.webviewshowpoll = (webview) findviewbyid(r.id.webviewshowpoll);              device.webviewshowpoll.getsettings().setjavascriptenabled(true);              //device.webviewshowpoll.getsettings().setpluginsenabled(true);             device.webviewshowpoll.getsettings().setjavascriptenabled(true);             device.webviewshowpoll.getsettings().setpluginstate(pluginstate.on);             device.webviewshowpoll.getsettings().setjavascriptcanopenwindowsautomatically(true);             device.webviewshowpoll.getsettings().setallowfileaccess(true);             device.webviewshowpoll.addjavascriptinterface(appconnector, "appconnectr");              try             {                 device.webviewshowpoll.loaddatawithbaseurl("file:///android_asset/",                         utility.convertstreamtostring(getassets().open("index.htm",                                 assetmanager.access_buffer)), "text/html", "utf-8","");              }              catch (ioexception e)             {                 log.e(getstring(r.string.app_name), e.getmessage());             }         } }

and index.htm :

<html> <head> <script type="text/javascript"> alert('hello world!'); </script> </head> <body> <p>hello world!</p> <p>hello world!</p> </body> </html>

you haven't set webchromeclient handle js alerts

device.webviewshowpoll.setwebchromeclient(new webchromeclient());

javascript alert not working in android webview


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