java - Android: captured image not showing up in gallery (Media Scanner intent not working) -

i have following problem: working on app user can take picture (to attach post) , picture saved external storage. want photo show in pictures gallery , using media scanner intent that, not seem work. following official android developer guide when writing code, don't know what's going wrong.

parts of code:

intent capturing image:

private void dispatchtakepictureintent() {     intent takepictureintent = new intent(mediastore.action_image_capture);     // ensure there's camera activity handle intent     if (takepictureintent.resolveactivity(getactivity().getpackagemanager()) != null) {         // create file photo should go         file photofile = null;         try {             photofile = createimagefile();         } catch (ioexception ex) {             // error occurred while creating file             toast.maketext(getactivity(), ex.getmessage(), toast.length_short).show();         }         // continue if file created         if (photofile != null) {             takepictureintent.putextra(mediastore.extra_output,                     uri.fromfile(photofile));             startactivityforresult(takepictureintent, request_image_capture);         }     } } 

creating file save image:

private file createimagefile() throws ioexception {     // create image file name     string timestamp = new simpledateformat("yyyymmdd_hhmmss").format(new date());     string imagefilename = "jpeg_" + timestamp + "_";     file storagedir = environment.getexternalstoragepublicdirectory(             environment.directory_pictures);     file image = file.createtempfile(             imagefilename,  /* prefix */             ".jpg",         /* suffix */             storagedir      /* directory */     );      // save file: path use action_view intents     mcurrentphotopath = image.getabsolutepath();     return image; } 

displaying image in view:

private void setpic() {     // dimensions of view     int targetw = 60;     int targeth = 100;      // dimensions of bitmap     bitmapfactory.options bmoptions = new bitmapfactory.options();     bmoptions.injustdecodebounds = true;     bitmapfactory.decodefile(mcurrentphotopath, bmoptions);     int photow = bmoptions.outwidth;     int photoh = bmoptions.outheight;      // determine how scale down image     int scalefactor = math.min(photow/targetw, photoh/targeth);      // decode image file bitmap sized fill view     bmoptions.injustdecodebounds = false;     bmoptions.insamplesize = scalefactor;     bmoptions.inpurgeable = true;      bitmap bitmap = bitmapfactory.decodefile(mcurrentphotopath, bmoptions);     img_added.setimagebitmap(bitmap); } 

broadcasting media scanner intent make image show in gallery:

private void galleryaddpic() {     intent mediascanintent = new intent(intent.action_media_scanner_scan_file);     file f = new file(mcurrentphotopath);     uri contenturi = uri.fromfile(f);     mediascanintent.setdata(contenturi);     getactivity().sendbroadcast(mediascanintent); } 

code run after image capture intent returned:

@override public void onactivityresult(int requestcode, int resultcode, intent data) {      if (requestcode == request_image_capture && resultcode == activity.result_ok) {         setpic();          galleryaddpic();     } } 

i have tried use intent.action_media_mounted instead of intent.action_media_scanner_scan_file, in case got "permission denied" error. when log uri passed intent, file:///storage/emulated/0/pictures/jpeg_20150803_104122_-1534770215.jpg, should fine. else works (capturing image, saving external storage , displaying in view) except this, don't know what's going wrong. have idea? in advance!

it depends on how device gallery implement. popular photo apps receive intent.action_media_scanner_scan_file broadcast listen android media database.

alternative can insert image mediastore manually @ same time.

public final void notifymediastorescanner(final file file) {         try {             mediastore.images.media.insertimage(mcontext.getcontentresolver(),                     file.getabsolutepath(), file.getname(), null);             mcontext.sendbroadcast(new intent(                     intent.action_media_scanner_scan_file, uri.fromfile(file)));         } catch (filenotfoundexception e) {             e.printstacktrace();         }     } 

addition, make sure photo not in private folder, internal storage or write context.mode_private. otherwise other apps not have permission access file.