I got an error in adapter.getRef(position).removeValue();
FATAL EXCEPTION: main java.lang.ArrayIndexOutOfBoundsException: length=12; index=-1 at java.util.ArrayList.get(ArrayList.java:306) at com.firebase.ui.database.FirebaseArray.getItem(FirebaseArray.java:52) at com.firebase.ui.database.FirebaseRecyclerAdapter.getRef(FirebaseRecyclerAdapter.java:150) at com.example.maecea.ipon4.Expenses$3$1$2.onClick(Expenses.java:281) at android.support.v7.app.AlertController$ButtonHandler.handleMessage(AlertController.java:157) at android.os.Handler.dispatchMessage(Handler.java:99) at android.os.Looper.loop(Looper.java:137) at android.app.ActivityThread.main(ActivityThread.java:4745) at java.lang.reflect.Method.invokeNative(Native Method) at java.lang.reflect.Method.invoke(Method.java:511) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) at dalvik.system.NativeStart.main(Native Method) viewHolder.mView.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { AlertDialog.Builder builder = new AlertDialog.Builder(Expenses.this); builder.setMessage("Gusto mo ba talaga burahin ito, katulad ng pagkalimot niya sayo?").setCancelable(false) .setPositiveButton("Yes", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { adapter.getRef(position).removeValue(); adapter.notifyDataSetChanged(); //Intent NotesIntent = new Intent(getApplication(), Notes.class); //startActivity(NotesIntent); } }) .setNegativeButton("No", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { dialog.cancel(); } }); AlertDialog dialog =builder.create(); dialog.setTitle("Expenses"); dialog.show(); } }); -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To unsubscribe from this group and stop receiving emails from it, send an email to android-developers+unsubscr...@googlegroups.com. To post to this group, send email to android-developers@googlegroups.com. Visit this group at https://groups.google.com/group/android-developers. To view this discussion on the web visit https://groups.google.com/d/msgid/android-developers/27684c87-c38c-4e63-9f2f-66f62aca2f81%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.