gridview baseadapter

public class GridActivity extends Activity {

	List<MyClass> list = new ArrayList<MyClass>();

	private GridView grid_test;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_grid);

		initList();

		grid_test = (GridView) findViewById(R.id.grid_test);
		grid_test.setAdapter(new MyAdapter());
	}

	private void initList() {
		list.add(new MyClass("1", getBMP("test.png")));
		list.add(new MyClass("2", getBMP("test.png")));
		list.add(new MyClass("3", getBMP("test.png")));
		list.add(new MyClass("4", getBMP("test.png")));
		list.add(new MyClass("5", getBMP("test.png")));
		list.add(new MyClass("6", getBMP("test.png")));
		list.add(new MyClass("7", getBMP("test.png")));
		list.add(new MyClass("8", getBMP("test.png")));
		list.add(new MyClass("9", getBMP("test.png")));
	}

	private Bitmap getBMP(String file) {
		try {
			FileInputStream is = new FileInputStream(Environment.getExternalStorageDirectory() + "/" + file);
			Bitmap bmp = BitmapFactory.decodeStream(is);

			return bmp;
		} catch (Exception e) {
		}

		return null;
	}

	private class MyClass {
		String name;
		Bitmap img;

		public MyClass(String name, Bitmap img) {
			this.name = name;
			this.img = img;
		}
	}

	private class MyAdapter extends BaseAdapter {

		@Override
		public int getCount() {
			return list.size();
		}

		@Override
		public Object getItem(int arg0) {
			return null;
		}

		@Override
		public long getItemId(int arg0) {
			return 0;
		}

		@Override
		public View getView(int position, View arg1, ViewGroup arg2) {
			View view = getLayoutInflater().inflate(R.layout.grid_item, null);

			TextView tv = (TextView) view.findViewById(R.id.txt_item);
			tv.setText(list.get(position).name);
			ImageView img = (ImageView) view.findViewById(R.id.img_item);
			img.setImageBitmap(list.get(position).img);

			return view;
		}

	}
}

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <GridView
        android:id="@+id/grid_test"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:columnWidth="80dp"
        android:padding="10dp"
        android:numColumns="3"
        android:text="@string/hello_world" />

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <ImageView
        android:id="@+id/img_item"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:layout_gravity="center"/>

    <TextView
        android:id="@+id/txt_item"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content" 
        android:layout_gravity="center"/>

</LinearLayout>