title: Why is my ListView not showing anything?
body: <p>I have a very basic ListView in android and had set a very basic adapter. My problem is that the list view does not show anything, regardless of the adapter and the notifyDataSetChanged(); </p>
  
  <p>Here is my code:
  XML:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"&gt;
    &lt;TextView android:text="@string/app_name"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    &gt;&lt;/TextView&gt;
    &lt;ListView android:id="@+id/selectView"
      android:layout_height="wrap_content"
      android:layout_width="wrap_content"&gt;
      &lt;/ListView&gt;
  &lt;/RelativeLayout&gt;
  </code></pre>
  
  <p>The Activity code:</p>
  
  <pre><code>import android.app.Activity;
  import android.os.Bundle;
  import android.widget.ListView;
  
  import com.androidcourse.phonemapper.R;
  import com.androidcourse.phonemapper.model.SelectViewAdapter;
  
  public class SelectActivity extends Activity {
  
      private ListView mListView;
  
      private SelectViewAdapter mAdapter;
  
      @Override
      public void onCreate(Bundle savedState) {
          super.onCreate(savedState);
          setContentView(R.layout.select_activity);
          initializeListView();
  
      }
  
      private void initializeListView() {
          mListView = (ListView) findViewById(R.id.selectView);
          mAdapter = new SelectViewAdapter(this);
          mListView.setAdapter(mAdapter);
          mAdapter.notifyDataSetChanged();
      }
  
      @Override
      public void onResume() {
          super.onResume();
      }
  }
  </code></pre>
  
  <p>And the Adapter code:</p>
  
  <pre><code>import android.content.Context;
  import android.graphics.Color;
  import android.view.View;
  import android.view.ViewGroup;
  import android.widget.BaseAdapter;
  import android.widget.TextView;
  
  public class SelectViewAdapter extends BaseAdapter {
  
      private Context mContext;
      private TextView mMockTextView;
  
      public SelectViewAdapter(Context cnt) {
          mContext = cnt;
          mMockTextView = new TextView(mContext);
          mMockTextView.setText("Test text");
          mMockTextView.setBackgroundColor(Color.CYAN);
      }
  
      @Override
      public int getCount() {
          return 3;
      }
  
      @Override
      public Object getItem(int position) {
          return mMockTextView;
      }
  
      @Override
      public long getItemId(int position) {
          return 3;
      }
  
      @Override
      public View getView(int position, View convertView, ViewGroup parent) {
          return mMockTextView;
      }
  
  }
  </code></pre>
  
  <p>The problem is that nothing is shown on the screen. A black screen (and the first text view from the XML) is all I get. I cannot see the mockTextView and its text. Apparently I am doing something quite wrong, but I cant figure out what.</p>