android - I want to place background image where "image url" is not present -
i want place background image "image url" not present .
i not getting background image image url not present . why not appearing ?
please see in image 1 image url not present in json should replace "bc.jpeg" have placed in drawable folder.
but not coming why not showing ?
main activity
public class mainactivity extends activity { // log tag private static final string tag = mainactivity.class.getsimplename(); private static final string url = "http://qzrbzpztcd.localtunnel.me/api/v1/restaurants?per_page=10&page=1&sort_col=average_ratings"; // movies json url //private static final string url = "http://api.androidhive.info/json/movies.json"; private progressdialog pdialog; private list<movie> movielist = new arraylist<movie>(); private listview listview; private customlistadapter adapter; @override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); listview = (listview) findviewbyid(r.id.list); adapter = new customlistadapter(this, movielist); listview.setadapter(adapter); pdialog = new progressdialog(this); // showing progress dialog before making http request pdialog.setmessage("loading..."); pdialog.show(); // changing action bar color getactionbar().setbackgrounddrawable( new colordrawable(color.parsecolor("#1b1b1b"))); // creating volley request obj jsonarrayrequest moviereq = new jsonarrayrequest(url, new response.listener<jsonarray>() { @override public void onresponse(jsonarray response) { log.d(tag, response.tostring()); hidepdialog(); // parsing json (int = 0; < response.length(); i++) { try { jsonobject obj = response.getjsonobject(i); movie movie = new movie(); //movie.settitle(obj.getstring("title")); movie.setname(obj.getstring("name")); //movie.setthumbnailurl(obj.getstring("image")); movie.setthumbnailurl(obj.getstring("image_url")); movie.setaverage_ratings(obj.getstring("average_ratings")); movie.setcuisine(obj.getstring("cuisine")); movie.setaddress(obj.getjsonobject("address").getstring("area")); //movie.setaddress(obj.getstring("address")); //movie.setyear(obj.getint("releaseyear")); // genre json array /*jsonarray genrearry = obj.getjsonarray("genre"); arraylist<string> genre = new arraylist<string>(); (int j = 0; j < genrearry.length(); j++) { genre.add((string) genrearry.get(j)); } movie.setgenre(genre);*/ // adding movie movies array movielist.add(movie); } catch (jsonexception e) { e.printstacktrace(); } } // notifying list adapter data changes // renders list view updated data adapter.notifydatasetchanged(); } }, new response.errorlistener() { @override public void onerrorresponse(volleyerror error) { volleylog.d(tag, "error: " + error.getmessage()); hidepdialog(); } }); // adding request request queue appcontroller.getinstance().addtorequestqueue(moviereq); } @override public void ondestroy() { super.ondestroy(); hidepdialog(); } private void hidepdialog() { if (pdialog != null) { pdialog.dismiss(); pdialog = null; } } @override public boolean oncreateoptionsmenu(menu menu) { // inflate menu; adds items action bar if present. getmenuinflater().inflate(r.menu.main, menu); return true; } } list row.xml
<?xml version="1.0" encoding="utf-8"?> <relativelayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:background="@drawable/list_row_selector" android:padding="8dp" > <!-- thumbnail image --> <com.android.volley.toolbox.networkimageview android:id="@+id/thumbnail" android:layout_width="120dp" android:layout_height="80dp" android:layout_alignparentleft="true" android:layout_marginright="8dp" /> <!-- restaurant name --> <textview android:id="@+id/name" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_torightof="@+id/thumbnail" android:textsize="@dimen/title" android:textstyle="bold" /> <textview android:id="@+id/area" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@id/name" android:layout_torightof="@+id/thumbnail" android:textsize="@dimen/rating" /> <!-- rating --> <textview android:id="@+id/average_ratings" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@id/area" android:layout_torightof="@+id/thumbnail" android:textsize="@dimen/rating" /> <textview android:id="@+id/cuisine" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@id/average_ratings" android:layout_torightof="@+id/thumbnail" android:textsize="@dimen/rating" /> <!-- genre --> <!-- <textview android:id="@+id/genre" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_below="@id/rating" android:layout_margintop="5dp" android:layout_torightof="@+id/thumbnail" android:textcolor="@color/genre" android:textsize="@dimen/genre" />--> <!-- <!– release year –> <textview android:id="@+id/releaseyear" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignparentbottom="true" android:layout_alignparentright="true" android:textcolor="@color/year" android:textsize="@dimen/year" />--> </relativelayout> customlist adapter.java
public class customlistadapter extends baseadapter { private activity activity; private layoutinflater inflater; private list<movie> movieitems; imageloader imageloader = appcontroller.getinstance().getimageloader(); public customlistadapter(activity activity, list<movie> movieitems) { this.activity = activity; this.movieitems = movieitems; } @override public int getcount() { return movieitems.size(); } @override public object getitem(int location) { return movieitems.get(location); } @override public long getitemid(int position) { return position; } @override public view getview(int position, view convertview, viewgroup parent) { if (inflater == null) inflater = (layoutinflater) activity.getsystemservice(context.layout_inflater_service); if (convertview == null) convertview = inflater.inflate(r.layout.list_row, null); if (imageloader == null) imageloader = appcontroller.getinstance().getimageloader(); networkimageview thumbnail = (networkimageview) convertview .findviewbyid(r.id.thumbnail); textview name = (textview) convertview.findviewbyid(r.id.name); textview average_ratings = (textview) convertview.findviewbyid(r.id.average_ratings); textview address=(textview) convertview.findviewbyid(r.id.area); textview cuisine =(textview) convertview.findviewbyid(r.id.cuisine); //textview genre = (textview) convertview.findviewbyid(r.id.genre); //textview year = (textview) convertview.findviewbyid(r.id.releaseyear); // getting movie data row movie m = movieitems.get(position); // thumbnail image //thumbnail.setimageurl(m.getthumbnailurl(), imageloader); if (m.getthumbnailurl().compareto("")!=0) thumbnail.setimageurl(m.getthumbnailurl(), imageloader); else{ thumbnail.setimageresource(r.drawable.bc); } // title name.settext(m.getname()); // rating average_ratings.settext("rating: " + string.valueof(m.getaverage_ratings())); address.settext("area: " + string.valueof(m.getaddress())); cuisine.settext("cusine: " + string.valueof(m.getcuisine())); /*// genre string genrestr = ""; (string str : m.getgenre()) { genrestr += str + ", "; } genrestr = genrestr.length() > 0 ? genrestr.substring(0, genrestr.length() - 2) : genrestr; genre.settext(genrestr); // release year year.settext(string.valueof(m.getyear()));*/ return convertview; } } movie.java
public class movie { private string name, thumbnailurl; //private int year; private string average_ratings,area,cuisine,address; // private arraylist<string> genre; public movie() { } public movie(string name, string thumbnailurl, string average_ratings,string area,string cuisine,string address ) { this.name = name; this.thumbnailurl = thumbnailurl; //this.year = year; this.average_ratings = average_ratings; this.area=area; this.cuisine=cuisine; this.address=address; //this.genre = genre; } public string getname() { return name; } public void setname(string name) { this.name = name; } public string getthumbnailurl() { return thumbnailurl; } public void setthumbnailurl(string thumbnailurl) { this.thumbnailurl = thumbnailurl; } /*public int getyear() { return year; }*/ /*public void setyear(int year) { this.year = year; }*/ public string getaverage_ratings() { return average_ratings; } public void setaverage_ratings(string average_ratings) { this.average_ratings = average_ratings; } public string getaddress() { return address; } public void setaddress(string address) { this.address = address; } public string getcuisine() { return cuisine; } public void setcuisine(string cuisine) { this.cuisine = cuisine; } /*public arraylist<string> getgenre() { return genre; } public void setgenre(arraylist<string> genre) { this.genre = genre; } */ }
to display placeholder while image loading, use:
thumbnail.setdefaultimageresid(r.drawable.your_placeholder); to display image error if image doesn`t load error, use:
thumbnail.seterrorimageresid(r.drawable.your_error); what use glide?
"glide fast , efficient open source media management , image loading framework android wraps media decoding, memory , disk caching, , resource pooling simple , easy use interface."
its use easy.
glide .with(context) .load(url) .placeholder(r.drawable.loading_spinner) .into(myimageview);
using this, glide handle you.
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