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Android

J Smillie
PLUS
J Smillie
Courses Plus Student 40,123 Points
Posted by J Smillie
J Smillie
Courses Plus Student 40,123 Points

Can someone please point out what is wrong with this answer?

Challenge Task 5 of 5 Implementing Designs for Android

Finally, set this view as the empty view for mGridView.

import android.app.Activity;
import android.os.Bundle;
import android.view.ListView;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.TextView;

public class InviteActivity extends Activity {

    /*
     * Some code has been omitted for brevity!
     */
    public MenuItem mInviteMenuItem;
    public GridView mGridView;
    public TextView mEmptyTextView;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.player_grid);


      mEmptyTextView = (TextView)findViewById(android.R.id.empty);


      mGridView.setEmptyView(mEmptyTextView);

        mGridView = (GridView)findViewById(R.id.gridView);
        mGridView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        mGridView.setOnItemClickListener(mOnItemClickListener);
    }

    public OnItemClickListener mOnItemClickListener = new OnItemClickListener() {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

            // Start by adding code in here!

          if (mGridView.getCheckedItemCount () > 0) {

            mInviteMenuItem.setVisibility(View.VISIBLE);
          }

          else {
              mInviteMenuItem.setVisibility(View.INVISIBLE);
          }



        }       
    };
}

This is my answer

mGridView.setEmptyView(mEmptyTextView);

3 Answers

Stone Preston
Stone Preston
42,016 Points

try moving it down after you actually set the gridView using findViewById. you currently have it above the line that sets mGridView. 

 @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.player_grid);


      mEmptyTextView = (TextView)findViewById(android.R.id.empty);

        mGridView = (GridView)findViewById(R.id.gridView);

        mGridView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        mGridView.setOnItemClickListener(mOnItemClickListener);

        mGridView.setEmptyView(mEmptyTextView);