布局用 RelativeLayout 或者** GridLayout** 都可以
处理 item 的点击事件
public class MainActivity extends AppCompatActivity {
private GridView gridview;
private ImageAdapter adapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
gridview = (GridView) this.findViewById(R.id.gridview);
adapter = new ImageAdapter();
gridview.setAdapter(adapter);
// 点击 GridView 的item 的点击事件
gridview.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@SuppressLint("ShowToast")
@Override
public void onItemClick(AdapterView> parent, View view, int position, long id) {
Toast.makeText(MainActivity.this, "-->"+position, Toast.LENGTH_LONG).show();
}
});
}
private int[] images = {R.drawable.pro, R.drawable.pro1};
// 相当于iOS中CollectionView的代理方法
public class ImageAdapter extends BaseAdapter{
@Override
public int getCount() {
return images.length;
}
@Override
public Object getItem(int position) {
return images[position];
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
// 手工创建View对象(用于比较简单的)
// 加载xml文件
ImageView imageView = null;
if(convertView == null)
{
imageView = new ImageView(MainActivity.this);
}
else
{
imageView = (ImageView) convertView;
}
// 设置GridView的显示 的格子的间距
imageView.setLayoutParams(new GridView.LayoutParams(85,85));
imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imageView.setPadding(8, 8, 8, 8);
imageView.setImageResource(images[position]);
return imageView;
}
}
}