Fix samples' text in Cast demo app

PiperOrigin-RevId: 260553467

demos/cast/src/main/java/com/google/android/exoplayer2/castdemo/MainActivity.java

@@ -17,6 +17,8 @@ package com.google.android.exoplayer2.castdemo;
 
 import android.content.Context;
 import android.os.Bundle;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.core.graphics.ColorUtils;
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
@@ -281,5 +283,13 @@ public class MainActivity extends AppCompatActivity
     public SampleListAdapter(Context context) {
       super(context, android.R.layout.simple_list_item_1, DemoUtil.SAMPLES);
     }
+
+    @NonNull
+    @Override
+    public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) {
+      View view = super.getView(position, convertView, parent);
+      ((TextView) view).setText(getItem(position).title);
+      return view;
+    }
   }
 }