打造 Recyclerview 的万能 Holder CommonHolder

本文主要是介绍打造 Recyclerview 的万能 Holder CommonHolder，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

/*** RecyclerView 的通用 Holder* Created by suwenlai on 16-12-27.*/public class CommonHolder extends RecyclerView.ViewHolder {/*** item里面的控件集*/protected SparseArray<View> mViews;protected Context mContext;/*** 条目布局*/protected View mConvertView;public CommonHolder(View itemView, Context context, ViewGroup parent) {super(itemView);mContext = context;mViews = new SparseArray<>();mConvertView = itemView;}/*** 获取 ViewHolder** @param context   上下文* @param parent    parent* @param layoutId  item 布局文件 id* @return holder*/public static CommonHolder getHolder(Context context, ViewGroup parent, int layoutId){View itemView = LayoutInflater.from(context).inflate(layoutId, parent, false);CommonHolder viewHolder = new CommonHolder(itemView, context, parent);return viewHolder;}/*** 通过 viewId 获取控件** @param viewId    item 中 子view 的 id* @return  子view*/public <T extends View> T getView(int viewId){View view = mViews.get(viewId);if (view == null){view = mConvertView.findViewById(viewId);mViews.put(viewId,view);}return (T) view;}/*** 给 TextView 设置内容** @param viewId* @param s*/public CommonHolder setText(int viewId, String s){TextView view = getView(viewId);view.setText(s);return this;}/*** 给 ImageView 设置内容** @param viewId* @param resId*/public CommonHolder setImg(int viewId, int resId){ImageView view = getView(viewId);view.setImageResource(resId);return this;}/*** 给 view 设置点击监听事件** @param viewId* @param onClickListener*/public CommonHolder setClickListener(int viewId, View.OnClickListener onClickListener){View view = getView(viewId);view.setOnClickListener(onClickListener);return this;}
}