android - ListView Item not loading images from url -
i have custom baseadapter loading images custom listview of sorts urls using async tasks images not showing. here adapter:
private class horizontaladapter extends baseadapter{ public horizontaladapter() { super(); final checkpoint current = localcheckpoints[checkpointposition]; urls[0] = current.getgallery()[0].geturl(); urls[1] = current.getyoutube(); urls[2] = current.getsoundcloud(); } @override public int getcount() { return 3; } @override public object getitem(int position) { return urls[position]; } @override public long getitemid(int position) { return position; } @override public view getview(int position, view convertview, viewgroup parent) { string urltoload = urls[position]; if(convertview == null){ convertview = layoutinflater.from(getactivity()).inflate(r.layout.horizontal_listview_item,parent,false); } imageview imageview = (imageview)convertview.findviewbyid(r.id.cp_image); framelayout container = (framelayout)convertview.findviewbyid(r.id.youtubeshower); button playbutton = (button)convertview.findviewbyid(r.id.playstop); playbutton.setvisibility(view.visible); if(position == 0){ log.d("horizontalsv","loading image url: " + urltoload); new loadimage(imageview).execute(urltoload); //container.setvisibility(view.visible); imageview.setvisibility(view.visible); } else if(position == 1){ container.setvisibility(view.visible); imageview.setvisibility(view.invisible); string videoid = extractytid(urltoload); playyoutubevidefragment youtubefrag = playyoutubevidefragment.newinstance(videoid); mycontext.getsupportfragmentmanager().begintransaction().replace(r.id.youtubeshower, youtubefrag).commit(); }else{ } return convertview; } } and here xml listview item:
<?xml version="1.0" encoding="utf-8"?> <relativelayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" > <framelayout android:id="@+id/youtubeshower" android:layout_width="match_parent" android:layout_height="288dp" android:layout_alignparenttop="true" android:layout_centerhorizontal="true" android:layout_alignparentbottom="true"> </framelayout> <imageview android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/cp_image" android:layout_alignparentbottom="true" android:layout_alignparenttop="true" android:layout_alignparentleft="true" android:layout_alignparentstart="true" android:layout_alignparentright="true" android:layout_alignparentend="true" /> <button android:layout_width="wrap_content" android:layout_height="87dp" android:text="play" android:id="@+id/playstop" android:layout_alignparentbottom="true" android:layout_centerhorizontal="true" /> </relativelayout> and here how loading images:
private class loadimage extends asynctask<string,void,bitmap>{ imageview target; public loadimage(imageview imageviewtoload){ target = imageviewtoload; if(imageviewtoload == null){ log.e("in loadimage","imageview null"); }else{ log.d("in loadimage","imageview there"); } } @override protected bitmap doinbackground(string... params) { string urlstring = params[0]; try { url url = new url(urlstring); try { bitmap bmp = bitmapfactory.decodestream(url.openconnection().getinputstream()); return bmp; }catch(ioexception e){ log.e("ioexception",e.getmessage()); return null; } }catch (malformedurlexception e){ log.e("url error", "url = " + urlstring + " , error = " + e.getmessage()); return null; } } @override protected void onpostexecute(bitmap o) { super.onpostexecute(o); if(o != null){ log.d("in loadimage","bitmap not null"); target.setimagebitmap(o); //lvtest.setadapter(new horizontaladapter()); }else{ log.e("in loadimage","bitmap null"); target.setimagebitmap(null); target.setbackgroundcolor(color.white); } } } is there reason why images not loading? bitmap returning not null in load image asynctask should work.
use picasso library, should take away problems you're having asynchronous task. http://square.github.io/picasso/
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