Android-UI布局---RecyclerView学习（一）在适配器中自定义长按和点击事件

public class GalleryAdapter extends	RecyclerView.Adapter<GalleryAdapter.ViewHolder> {

	/**
	 *定义回调接口
	 */
	public interface OnItemClickLitener {
		void onItemClick(View view, int position);//点击事件
	}
	/**
	 * 单击 点击监听事件变量
	 */
	private OnItemClickLitener mOnItemClickLitener;

	/**
	 * 设置
	 * @param mOnItemClickLitener
	 */
	public void setOnItemClickLitener(OnItemClickLitener mOnItemClickLitener) {
		this.mOnItemClickLitener = mOnItemClickLitener;
	}

	private LayoutInflater mInflater;//布局填充器
	private List<Integer> mDatas;//适配器绑定的数据

	/**
	 * 构造函数
	 */
	public GalleryAdapter(Context context, List<Integer> datats) {
		mInflater = LayoutInflater.from(context);
		mDatas = datats;
	}

	/**
	 *ViewHolder 跟listView里面一样  属性是item 布局里面各个视图控件
	 */
	public static class ViewHolder extends RecyclerView.ViewHolder {
		public ViewHolder(View arg0) {
			//这里面可以先找到各个视图控件，
			super(arg0);
		}

		ImageView mImg;
		TextView mTxt;
	}

	@Override
	public int getItemCount() {
		return mDatas.size();
	}

	@Override
	public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
		//找到对应的布局item
		View view = mInflater.inflate(R.layout.activity_index_gallery_item,viewGroup, false);
		ViewHolder viewHolder = new ViewHolder(view);
		viewHolder.mImg = (ImageView) view.findViewById(R.id.id_index_gallery_item_image);
		return viewHolder;
	}

	/**
	 * 该函数用来进行数据填充的，同时如果有监听事件，也在这里面
	 */
	@Override
	public void onBindViewHolder(final ViewHolder viewHolder, final int i) {
		// 布局填充数据
		viewHolder.mImg.setImageResource(mDatas.get(i));
		// 如果设置了回调，则设置点击事件
		if (mOnItemClickLitener != null) {
			viewHolder.itemView.setOnClickListener(new OnClickListener() {
				@Override
				public void onClick(View v) {
					//设置点击事件 具体的调用执行，由当前的adapter实例进行操作
					mOnItemClickLitener.onItemClick(viewHolder.itemView, i);
				}
			});
		}

	}

}

        mAdapter.setOnItemClickLitener(new OnItemClickLitener()
        {

            @Override
            public void onItemClick(View view, int position)
            {
                Toast.makeText(HomeActivity.this, position + " click",
                        Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onItemLongClick(View view, int position)
            {
                Toast.makeText(HomeActivity.this, position + " long click",
                        Toast.LENGTH_SHORT).show();
                        mAdapter.removeData(position);
            }
        });

    public interface OnItemClickLitener
    {
        void onItemClick(View view, int position);
        void onItemLongClick(View view , int position);
    }

            viewHolder.itemView.setOnLongClickListener(new OnLongClickListener()
            {
                @Override
                public boolean onLongClick(View v)
                {
                    mOnItemClickLitener.onItemLongClick(viewHolder.itemView, i);
                }
            });