Gallery之无限循环

其实这个很简单的，如果你接触过ViewPager那么这个功能分分钟就实现了.

布局文件就不贴出来了，就是一个简单的Gallery

/**
 * Created by Y on 2015/7/16.
 * Gallery无限循环
 */
public class GalleryActivity extends Activity{

    private Gallery gallery;
    //图片源数组
    private Integer[] imageInteger={
            R.drawable.ic_launcher,
            R.drawable.logo_twitter,
            R.drawable.logo_vkontakte,
            R.drawable.logo_wechat,
            R.drawable.logo_wechatfavorite,
            R.drawable.logo_wechatmoments,
            R.drawable.logo_whatsapp
    };
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.grally);
        initViews();
        gallery.setAdapter(new ImageAdapter(this));
    }

    private void initViews() {
        gallery = (Gallery) findViewById(R.id.gallery);
    }


    class ImageAdapter extends BaseAdapter {
        //声明Context
        private Context context;
        //声明 ImageAdapter
        public ImageAdapter(Context c){
            context = c;
        }
        @Override
        //获取图片的个数
        public int getCount() {
            return Integer.MAX_VALUE;
        }
        @Override
        //获取图片在库中的位置
        public Object getItem(int position) { return position; }

        @Override
        //获取图片在库中的位置
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ImageView imageView = new ImageView(context);
            //给ImageView设置资源
            imageView.setImageResource(imageInteger[position%imageInteger.length]);
            imageView.setScaleType(ImageView.ScaleType.CENTER_CROP);
            //设置比例类型
            imageView.setScaleType(ImageView.ScaleType.FIT_XY);
            //设置布局 图片128x192显示
            imageView.setLayoutParams(new Gallery.LayoutParams(400, 400));
            return imageView;
        }
    }
}