自定义GridView

public class MyCustomGridView extends GridView implements OnItemClickListener{
  private Listener mListener;

  public MyCustomGridView(Context context, AttributeSet attrs) {
    super(context, attrs);
    setOnItemClickListener(this);
  }

  public void onItemClick(AdapterView parent, View v, int position, long id) {
    if (mListener != null) {
      mListener.onClick(position);
    }
  }

  public void setListener(Listener l){
    mListener = l;
  }

  public interface Listener{
    void onClick(int position);
  }
}

 

 

public class Main extends Activity {
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    MyCustomGridView mGrid = (MyCustomGridView) findViewById(R.id.my_custom_grid_view);
    mGrid.setListener(new ItemListener());
    mGrid.setAdapter(new ImageAdapter(this));
  }

  private class ItemListener implements MyCustomGridView.Listener{
    public void onClick(int position) {
      Log.d("almond","test");
    }
  }

  public class ImageAdapter extends BaseAdapter {
    private Context mContext;
    public ImageAdapter(Context c) {
      mContext = c;
    }

    public int getCount() {
      return mThumbIds.length;
    }

    public Object getItem(int position) {
      return null;
    }

    public long getItemId(int position) {
      return 0;
    }

    // create a new ImageView for each item referenced by the Adapter
    public View getView(int position, View convertView, ViewGroup parent) {
      ImageView imageView;
      if (convertView == null) { // if it's not recycled, initialize some attributes
        imageView = new ImageView(mContext);
        imageView.setLayoutParams(new GridView.LayoutParams(85, 85));
        imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
        imageView.setPadding(8, 8, 8, 8);
      } else {
        imageView = (ImageView) convertView;
      }
      imageView.setImageResource(mThumbIds[position]);
      return imageView;
    }

    private Integer[] mThumbIds = {
      R.drawable.icon,R.drawable.icon,R.drawable.icon
    };
  }
}

 

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:orientation="vertical"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
>
  <com.almondmendoza.myGridView.MyCustomGridView
    android:id="@+id/my_custom_grid_view"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:cacheColorHint="#00000000"
    android:listSelector="@android:color/transparent"
    android:numColumns="auto_fit"
    android:columnWidth="160px"
  />
</LinearLayout>