CommonViewHolder.java

package com.jumige.android.ui.template.utils;

/**
 * Author: cyning
 * Date  : 2015.04.27
 * Time  : 下午2:37
 * *  <P> 参照http://www.cnblogs.com/wenjiang/p/4185930.html</P>
 *  <p>博文中有详细的使用过程和情景</p>
 */

import android.support.v4.util.SparseArrayCompat;
import android.view.View;

public class CommonViewHolder {
    /**
     * 用于获取ItemView中的控件
     *
     * @param view ItemView
     * @param id   要获取的控件的id
     * @param <T>  返回的控件的类型
     * @return 返回的控件
     */
    public static <T extends View> T get(View view, int id) {
        SparseArrayCompat<View> viewHolder = (SparseArrayCompat<View>) view.getTag();
        if (viewHolder == null) {
            viewHolder = new SparseArrayCompat<>();
            view.setTag(viewHolder);
        }
        View childView = viewHolder.get(id);
        if (childView == null) {
            childView = view.findViewById(id);
            viewHolder.put(id, childView);
        }
        return (T) childView;
    }
}