Recycler所有adapter的父类-BaseRecycle

BaseRecyclerAdapter 需要配合RecyclerViewHolder 一起使用

BaseRecyclerAdapter:

/**
 * Created by EraJieZhang
 */

public abstract class BaseRecyclerAdapter<T> extends RecyclerView.Adapter<RecyclerViewHolder> {
    protected final List<T> mData;
    protected final Context mContext;
    protected LayoutInflater mInflater;
    private OnItemClickListener mClickListener;
    private OnItemLongClickListener mLongClickListener;

    public BaseRecyclerAdapter(Context ctx, List<T> list) {
        mData = (list != null) ? list : new ArrayList<T>();
        mContext = ctx;
        mInflater = LayoutInflater.from(ctx);
    }

    @Override
    public RecyclerViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        final RecyclerViewHolder holder = new RecyclerViewHolder(mContext,
                mInflater.inflate(getItemLayoutId(viewType), parent, false));
        if (mClickListener != null) {
            holder.itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    mClickListener.onItemClick(holder.itemView, holder.getLayoutPosition());
                }
            });
        }
        if (mLongClickListener != null) {
            holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
                @Override
                public boolean onLongClick(View v) {
                    mLongClickListener.onItemLongClick(holder.itemView, holder.getLayoutPosition());
                    return true;
                }
            });
        }
        return holder;
    }

    @Override
    public void onBindViewHolder(RecyclerViewHolder holder, int position) {
        bindData(holder, position, mData.get(position));
    }

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

    public void add(int pos, T item) {
        mData.add(pos, item);
        notifyItemInserted(pos);
    }

    public void delete(int pos,String  defaultprompt) {
        if (mData.size()>pos){
            mData.remove(pos);
            notifyItemRemoved(pos);
        }else {
            Toast.makeText(mContext,defaultprompt, Toast.LENGTH_SHORT).show();
        }
    }

    public void setOnItemClickListener(OnItemClickListener listener) {
        mClickListener = listener;
    }

    public void setOnItemLongClickListener(OnItemLongClickListener listener) {
        mLongClickListener = listener;
    }

    /**
     * 设置item的布局
     * @param viewType
     * @return
     */
    abstract public int getItemLayoutId(int viewType);

    /**
     * 设置数据
     * @param holder
     * @param position
     * @param item
     */
    abstract public void bindData(RecyclerViewHolder holder, int position, T item);

    /**
     * 添加每个条目的点击事件
     */
    public interface OnItemClickListener {
        public void onItemClick(View itemView, int pos);
    }

    /**
     * 添加每个条目的长按事件
     */
    public interface OnItemLongClickListener {
        public void onItemLongClick(View itemView, int pos);
    }
}

RecyclerViewHolder :

public class RecyclerViewHolder extends RecyclerView.ViewHolder {
    private SparseArray<View> mViews;//集合类，layout里包含的View,以view的id作为key，value是view对象
    private Context mContext;//上下文对象

    public RecyclerViewHolder(Context ctx, View itemView) {
        super(itemView);
        mContext = ctx;
        mViews = new SparseArray<View>();
    }

    private <T extends View> T findViewById(int viewId) {
        View view = mViews.get(viewId);
        if (view == null) {
            view = itemView.findViewById(viewId);
            mViews.put(viewId, view);
        }
        return (T) view;
    }

    public View getView(int viewId) {
        return findViewById(viewId);
    }

    public TextView getTextView(int viewId) {
        return (TextView) getView(viewId);
    }

    public Button getButton(int viewId) {
        return (Button) getView(viewId);
    }

    public ImageView getImageView(int viewId) {
        return (ImageView) getView(viewId);
    }

    public ImageButton getImageButton(int viewId) {
        return (ImageButton) getView(viewId);
    }

    public EditText getEditText(int viewId) {
        return (EditText) getView(viewId);
    }

    public RecyclerViewHolder setText(int viewId, String value) {
        TextView view = findViewById(viewId);
        view.setText(value);
        return this;
    }

    public RecyclerViewHolder setBackground(int viewId, int resId) {
        View view = findViewById(viewId);
        view.setBackgroundResource(resId);
        return this;
    }

    public RecyclerViewHolder setClickListener(int viewId, View.OnClickListener listener) {
        View view = findViewById(viewId);
        view.setOnClickListener(listener);
        return this;
    }

}