null pointer list adapter android [closed]-Collection of common programming errors
I created my own adapter to put some concerts in the list. Everything works fine without the day separators, but with them, when you scroll down the list and the convertView function is called for each new row that will appear on the screen i get a NullPointer Exception on the following line of the convertView function:
tvNombre.setText(entry.getArtista());
However i can print the name of the artist in the log, and I revised to pass the correct list to the adapter. Can anybody help me?
Thanks in advance.
listConciertoEvento.add(new ConciertoEvento("dia_0", "", new GregorianCalendar(2012,10,dia,0,0)));
listConciertoEvento.add(new ConciertoEvento(x++,"Moodyman","Becool","Electrónica",
new GregorianCalendar(2012,10,dia,23,30),new GregorianCalendar(2012,10,dia+1,5,0),"","",10));
listConciertoEvento.add(new ConciertoEvento(x++,"Chinese Man","Razzmataz 2","Trip-Hop",
new GregorianCalendar(2012,10,dia,21,0),new GregorianCalendar(2012,10,dia,23,0),"","", 50));
listConciertoEvento.add(new ConciertoEvento(x++,"Kreator","Razzmataz","Thrash Metal",
new GregorianCalendar(2012,10,dia,20,30),new GregorianCalendar(2012,10,dia,23,0),"","",10));
listConciertoEvento.add(new ConciertoEvento(x++,"Barricada","KGB","Rock",
new GregorianCalendar(2012,10,dia,22,0),new GregorianCalendar(2012,10,dia+1,0,30),"","", 50));
listConciertoEvento.add(new ConciertoEvento(x++,"The Buzzcocks","Apolo","Thrash Metal",
new GregorianCalendar(2012,10,dia,21,30),new GregorianCalendar(2012,10,dia,23,30),"","",10));
listConciertoEvento.add(new ConciertoEvento(x++,"Mr.Oizo","La 2","Electrónica",
new GregorianCalendar(2012,10,dia,23,30),new GregorianCalendar(2012,10,dia+1,3,0),"","", 50));
dia++;
//listConciertoEvento.add(new ConciertoEvento("dia_1", "", new GregorianCalendar(2012,10,dia,0,0)));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_1","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_2","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_3","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_4","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_5","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_6","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_7","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_8","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_9","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_10","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_11","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_12","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_13","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_14","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
listConciertoEvento.add(new ConciertoEvento(x++,"Cannibal Corpse_15","Razzmataz","Death Metal",new GregorianCalendar(2012,10,13,13,30),new GregorianCalendar(2012,10,13,15,0),"","", 15));
Here the code of the convertView on the adapter:
public View getView(int position, View convertView, ViewGroup viewGroup) {
ConciertoEvento entry = listConciertoEvento.get(position);
if (convertView == null) {
if (!entry.getArtista().startsWith("dia_")){
Log.v("lalalala", "XXXX layout concierto");
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.concierto_evento_row, null);
}else{
Log.v("lalalala", "XXXX layout dia");
LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
convertView = inflater.inflate(R.layout.dia_row, null);
}
}
final int id = entry.getId();
if (!entry.getArtista().startsWith("dia_")){
Log.v("lalalala", "XXXX is concert");
ImageView imSquare = (ImageView) convertView.findViewById(R.id.imSquare);
TextView tvNombre = (TextView) convertView.findViewById(R.id.tvNombre);
Log.v("lalalala", entry.getArtista());
tvNombre.setText(entry.getArtista());
Log.v("lalalala", "XXXX tvNombre.setText(entry.getArtista()); done");
TextView tvPath = (TextView) convertView.findViewById(R.id.tvPath);
tvPath.setText(entry.getPath_imagen());
}else{
Log.v("lalalala", "XXXX is day");
Log.v("lalalala", entry.getArtista());
}
return convertView;
}
Here the log:
10-22 12:23:11.468: V/lalalala(582): XXXXXXXXXXX xivato en fragment2
10-22 12:23:11.468: V/lalalala(582): dia_0
10-22 12:23:11.468: V/lalalala(582): Kreator
10-22 12:23:11.468: V/lalalala(582): Chinese Man
10-22 12:23:11.468: V/lalalala(582): The Buzzcocks
10-22 12:23:11.468: V/lalalala(582): Barricada
10-22 12:23:11.468: V/lalalala(582): Mr.Oizo
10-22 12:23:11.468: V/lalalala(582): Moodyman
10-22 12:23:11.468: V/lalalala(582): dia_1
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_15
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_14
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_13
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_12
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_11
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_10
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_9
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_8
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_7
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_6
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_5
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_4
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_3
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_2
10-22 12:23:11.468: V/lalalala(582): Cannibal Corpse_1
10-22 12:23:11.619: D/dalvikvm(582): GC_EXTERNAL_ALLOC freed 130K, 51% free 2642K/5379K, external 904K/1038K, paused 48ms
10-22 12:23:11.669: V/lalalala(582): XXXX layout dia
10-22 12:23:11.669: V/lalalala(582): XXXX is day
10-22 12:23:11.669: V/lalalala(582): dia_0
10-22 12:23:11.679: V/lalalala(582): XXXX layout concierto
10-22 12:23:11.739: D/dalvikvm(582): GC_EXTERNAL_ALLOC freed 12K, 51% free 2640K/5379K, external 1058K/1570K, paused 50ms
10-22 12:23:11.779: V/lalalala(582): XXXX is concert
10-22 12:23:11.779: V/lalalala(582): Kreator
10-22 12:23:11.779: V/lalalala(582): XXXX tvNombre.setText(entry.getArtista()); done
10-22 12:23:11.789: V/lalalala(582): XXXX layout concierto
10-22 12:23:11.799: V/lalalala(582): XXXX is concert
10-22 12:23:11.799: V/lalalala(582): Chinese Man
10-22 12:23:11.799: V/lalalala(582): XXXX tvNombre.setText(entry.getArtista()); done
10-22 12:23:11.809: V/lalalala(582): XXXX layout concierto
10-22 12:23:11.819: V/lalalala(582): XXXX is concert
10-22 12:23:11.819: V/lalalala(582): The Buzzcocks
10-22 12:23:11.819: V/lalalala(582): XXXX tvNombre.setText(entry.getArtista()); done
10-22 12:23:11.819: V/lalalala(582): XXXX layout concierto
10-22 12:23:11.839: V/lalalala(582): XXXX is concert
10-22 12:23:11.839: V/lalalala(582): Barricada
10-22 12:23:11.839: V/lalalala(582): XXXX tvNombre.setText(entry.getArtista()); done
10-22 12:23:11.839: V/lalalala(582): XXXX layout concierto
10-22 12:23:11.869: V/lalalala(582): XXXX is concert
10-22 12:23:11.879: V/lalalala(582): Mr.Oizo
10-22 12:23:11.879: V/lalalala(582): XXXX tvNombre.setText(entry.getArtista()); done
10-22 12:23:11.889: V/lalalala(582): XXXX layout concierto
10-22 12:23:11.899: V/lalalala(582): XXXX is concert
10-22 12:23:11.899: V/lalalala(582): Moodyman
10-22 12:23:11.899: V/lalalala(582): XXXX tvNombre.setText(entry.getArtista()); done
10-22 12:23:11.909: V/lalalala(582): XXXX layout dia
10-22 12:23:11.909: V/lalalala(582): XXXX is day
10-22 12:23:11.909: V/lalalala(582): dia_1
10-22 12:23:11.909: V/lalalala(582): XXXX layout concierto
10-22 12:23:11.929: V/lalalala(582): XXXX is concert
10-22 12:23:11.929: V/lalalala(582): Cannibal Corpse_15
10-22 12:23:11.929: V/lalalala(582): XXXX tvNombre.setText(entry.getArtista()); done
10-22 12:23:37.829: W/KeyCharacterMap(582): No keyboard for id 0
10-22 12:23:37.829: W/KeyCharacterMap(582): Using default keymap: /system/usr/keychars/qwerty.kcm.bin
10-22 12:23:39.729: V/lalalala(582): XXXX is concert
10-22 12:23:39.739: V/lalalala(582): Cannibal Corpse_14
10-22 12:23:39.739: D/AndroidRuntime(582): Shutting down VM
10-22 12:23:39.749: W/dalvikvm(582): threadid=1: thread exiting with uncaught exception (group=0x40015560)
10-22 12:23:39.769: E/AndroidRuntime(582): FATAL EXCEPTION: main
10-22 12:23:39.769: E/AndroidRuntime(582): java.lang.NullPointerException
10-22 12:23:39.769: E/AndroidRuntime(582): at com.u.totsound.AdapterConciertoEvento.getView(AdapterConciertoEvento.java:89)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.widget.AbsListView.obtainView(AbsListView.java:1409)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.widget.ListView.addViewBelow(ListView.java:2914)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.widget.ListView.scrollListItemsBy(ListView.java:2843)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.widget.ListView.arrowScrollImpl(ListView.java:2340)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.widget.ListView.arrowScroll(ListView.java:2287)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.widget.ListView.commonKey(ListView.java:2089)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.widget.ListView.onKeyDown(ListView.java:2036)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.KeyEvent.dispatch(KeyEvent.java:1256)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.View.dispatchKeyEvent(View.java:3855)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:787)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.widget.ListView.dispatchKeyEvent(ListView.java:2021)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:789)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:789)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:789)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:789)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:789)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.widget.TabHost.dispatchKeyEvent(TabHost.java:278)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:789)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:789)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:789)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.ViewGroup.dispatchKeyEvent(ViewGroup.java:789)
10-22 12:23:39.769: E/AndroidRuntime(582): at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchKeyEvent(PhoneWindow.java:1687)
10-22 12:23:39.769: E/AndroidRuntime(582): at com.android.internal.policy.impl.PhoneWindow.superDispatchKeyEvent(PhoneWindow.java:1120)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.app.Activity.dispatchKeyEvent(Activity.java:2073)
10-22 12:23:39.769: E/AndroidRuntime(582): at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchKeyEvent(PhoneWindow.java:1663)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.ViewRoot.deliverKeyEventToViewHierarchy(ViewRoot.java:2560)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.ViewRoot.handleFinishedEvent(ViewRoot.java:2535)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.view.ViewRoot.handleMessage(ViewRoot.java:1867)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.os.Handler.dispatchMessage(Handler.java:99)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.os.Looper.loop(Looper.java:123)
10-22 12:23:39.769: E/AndroidRuntime(582): at android.app.ActivityThread.main(ActivityThread.java:3683)
10-22 12:23:39.769: E/AndroidRuntime(582): at java.lang.reflect.Method.invokeNative(Native Method)
10-22 12:23:39.769: E/AndroidRuntime(582): at java.lang.reflect.Method.invoke(Method.java:507)
10-22 12:23:39.769: E/AndroidRuntime(582): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
10-22 12:23:39.769: E/AndroidRuntime(582): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
10-22 12:23:39.769: E/AndroidRuntime(582): at dalvik.system.NativeStart.main(Native Method)