java - Download progress Bar absent in Notification when Downloading file inside Webview -


i"m able download file webview doesn't show me progress bar in notification panel. if go download directory of ext storage, can see file.

how can make download progress bar visible. appreciated.

here code library initiate download

webview.setdownloadlistener(new downloadlistener() {                     @override                     public void ondownloadstart(string url, string useragent, string contentdisposition, string mimetype, long contentlength) {                         downloadmanager.request request = new downloadmanager.request(uri.parse(url));                          request.setmimetype(mimetype);                         //------------------------cookie!!------------------------                         string cookies = cookiemanager.getinstance().getcookie(url);                         request.addrequestheader("cookie", cookies);                         //------------------------cookie!!------------------------                         request.addrequestheader("user-agent", useragent);                         request.setdescription("downloading file...");                         request.settitle(urlutil.guessfilename(url, contentdisposition, mimetype));                         request.allowscanningbymediascanner();                         request.setnotificationvisibility(downloadmanager.request.visibility_visible_notify_completed);                         request.setdestinationinexternalpublicdir(environment.directory_downloads, urlutil.guessfilename(url, contentdisposition, mimetype));                         downloadmanager dm = (downloadmanager) getsystemservice(download_service);                         dm.enqueue(request);                         toast.maketext(getapplicationcontext(), "downloading file", toast.length_long).show();                     }                 });

and manifest file is

<?xml version="1.0" encoding="utf-8"?> 

<uses-permission android:name="android.permission.internet" /> <uses-permission android:name="android.permission.access_network_state" /> <uses-permission android:name="android.permission.access_wifi_state" /> <uses-permission android:name="android.permission.write_external_storage" />  <application     android:allowbackup="true"     android:icon="@mipmap/icon"     android:label="@string/app_name"     android:roundicon="@mipmap/icon"     android:supportsrtl="true"     android:theme="@style/theme.appcompat.noactionbar">     <activity         android:name=".mainactivity"         android:configchanges="orientation"         android:screenorientation="portrait"         android:theme="@style/apptheme.transnav">         <intent-filter>             <action android:name="android.intent.action.main" />               <category android:name="android.intent.category.launcher" />         </intent-filter>     </activity>     <activity         android:name=".updatedialog"         android:theme="@style/theme.appcompat.dialog" />      <service android:name=".myfirebasemessagingservice">         <intent-filter>             <action android:name="com.google.firebase.messaging_event" />         </intent-filter>     </service>     <service android:name=".myfirebaseinstanceidservice">         <intent-filter>             <action android:name="com.google.firebase.instance_id_event" />         </intent-filter>     </service>     <service         android:name=".updateservice"         android:enabled="true"         android:exported="true" />  </application>

any largely appreciated. , records , download link generated google drive

and main activity file starts with:

public class mainactivity extends appcompatactivity {  boolean doublebacktoexitpressed = false; private textview textview; private bottombar bottombar;   @override protected void oncreate(@nullable bundle savedinstancestate) {     super.oncreate(savedinstancestate);      requestwindowfeature(window.feature_no_title);     getwindow().setflags(windowmanager.layoutparams.flag_fullscreen,             windowmanager.layoutparams.flag_fullscreen);     setcontentview(r.layout.activity_main);      view decorview = getwindow().getdecorview();     int uioptions = view.system_ui_flag_fullscreen;     decorview.setsystemuivisibility(uioptions);

if have file downloaded file sdcard or downloaded directory.

  1. read file sdcard

then open file in default pdf viewer of application see below

   public static void openpdffileasintent(context context, file file) {      intent target = new intent(intent.action_view);     target.setdataandtype(uri.fromfile(file), "application/pdf");     target.setflags(intent.flag_activity_clear_top);      intent intent = intent.createchooser(target, "open file");     try {         context.startactivity(intent);     } catch (activitynotfoundexception e) {          toast.maketext(context, "please add pdf viewer application", toast.length_long).show();     } }

usage:

 openpdffileasintent(mainactivity.this,file);

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