ViewHolder.java

package com.mcxtzhang.commonadapter.viewgroup.adapter.cache;

import android.annotation.SuppressLint;
import android.graphics.Bitmap;
import android.graphics.Paint;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.text.util.Linkify;
import android.util.SparseArray;
import android.view.View;
import android.view.animation.AlphaAnimation;
import android.widget.AbsListView;
import android.widget.Checkable;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.RatingBar;
import android.widget.TextView;

/**
 * 介绍：V1.5.0 引入 ViewCache概念
 * 配合ViewCache 存储 ItemViewType 信息
 * 作者：zhangxutong
 * 邮箱：mcxtzhang@163.com
 * 主页：http://blog.csdn.net/zxt0601
 * 时间： 2016/12/29.
 */

public class ViewHolder {
    public final View itemView;
    public final int itemViewType;

    private SparseArray<View> mChilds;

    public ViewHolder(View itemView, int itemViewType) {
        if (itemView == null) {
            throw new IllegalArgumentException("itemView may not be null");
        }
        this.itemView = itemView;
        this.itemViewType = itemViewType;
        mChilds = new SparseArray<>();
    }

    public <V extends View> V findViewById(int id) {
        return getView(id);
    }

    public <V extends View> V getView(int id) {
        View child = mChilds.get(id);
        if (child == null) {
            child = itemView.findViewById(id);
            mChilds.put(id, child);
        }
        return (V) child;
    }

    /**
     * 设置TextView的值
     *
     * @param viewId
     * @param text
     * @return
     */
    public ViewHolder setText(int viewId, CharSequence text) {
        TextView tv = getView(viewId);
        tv.setText(text);
        return this;
    }

    public ViewHolder setSelected(int viewId, boolean selected) {
        View v = getView(viewId);
        v.setSelected(selected);
        return this;
    }

    public ViewHolder setImageResource(int viewId, int resId) {
        ImageView view = getView(viewId);
        view.setImageResource(resId);
        return this;
    }

    public ViewHolder setImageBitmap(int viewId, Bitmap bitmap) {
        ImageView view = getView(viewId);
        view.setImageBitmap(bitmap);
        return this;
    }

    public ViewHolder setImageDrawable(int viewId, Drawable drawable) {
        ImageView view = getView(viewId);
        view.setImageDrawable(drawable);
        return this;
    }

    public ViewHolder setBackgroundColor(int viewId, int color) {
        View view = getView(viewId);
        view.setBackgroundColor(color);
        return this;
    }

    public ViewHolder setBackgroundRes(int viewId, int backgroundRes) {
        View view = getView(viewId);
        view.setBackgroundResource(backgroundRes);
        return this;
    }

    public ViewHolder setTextColor(int viewId, int textColor) {
        TextView view = getView(viewId);
        view.setTextColor(textColor);
        return this;
    }

    public ViewHolder setTextColorRes(int viewId, int textColorRes) {
        TextView view = getView(viewId);
        view.setTextColor(itemView.getContext().getResources().getColor(textColorRes));
        return this;
    }

    @SuppressLint("NewApi")
    public ViewHolder setAlpha(int viewId, float value) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {
            getView(viewId).setAlpha(value);
        } else {
            // Pre-honeycomb hack to set Alpha value
            AlphaAnimation alpha = new AlphaAnimation(value, value);
            alpha.setDuration(0);
            alpha.setFillAfter(true);
            getView(viewId).startAnimation(alpha);
        }
        return this;
    }

    public ViewHolder setVisible(int viewId, boolean visible) {
        View view = getView(viewId);
        view.setVisibility(visible ? View.VISIBLE : View.GONE);
        return this;
    }

    public ViewHolder linkify(int viewId) {
        TextView view = getView(viewId);
        Linkify.addLinks(view, Linkify.ALL);
        return this;
    }

    public ViewHolder setTypeface(Typeface typeface, int... viewIds) {
        for (int viewId : viewIds) {
            TextView view = getView(viewId);
            view.setTypeface(typeface);
            view.setPaintFlags(view.getPaintFlags() | Paint.SUBPIXEL_TEXT_FLAG);
        }
        return this;
    }

    public ViewHolder setProgress(int viewId, int progress) {
        ProgressBar view = getView(viewId);
        view.setProgress(progress);
        return this;
    }

    public ViewHolder setProgress(int viewId, int progress, int max) {
        ProgressBar view = getView(viewId);
        view.setMax(max);
        view.setProgress(progress);
        return this;
    }

    public ViewHolder setMax(int viewId, int max) {
        ProgressBar view = getView(viewId);
        view.setMax(max);
        return this;
    }

    public ViewHolder setRating(int viewId, float rating) {
        RatingBar view = getView(viewId);
        view.setRating(rating);
        return this;
    }

    public ViewHolder setRating(int viewId, float rating, int max) {
        RatingBar view = getView(viewId);
        view.setMax(max);
        view.setRating(rating);
        return this;
    }

    public ViewHolder setTag(int viewId, Object tag) {
        View view = getView(viewId);
        view.setTag(tag);
        return this;
    }

    public ViewHolder setTag(int viewId, int key, Object tag) {
        View view = getView(viewId);
        view.setTag(key, tag);
        return this;
    }

    public ViewHolder setChecked(int viewId, boolean checked) {
        Checkable view = (Checkable) getView(viewId);
        view.setChecked(checked);
        return this;
    }

    /**
     * 关于事件的
     */
    public ViewHolder setOnClickListener(int viewId,
                                         View.OnClickListener listener) {
        View view = getView(viewId);
        view.setOnClickListener(listener);
        return this;
    }

    public ViewHolder setOnTouchListener(int viewId,
                                         View.OnTouchListener listener) {
        View view = getView(viewId);
        view.setOnTouchListener(listener);
        return this;
    }

    public ViewHolder setOnLongClickListener(int viewId,
                                             View.OnLongClickListener listener) {
        View view = getView(viewId);
        view.setOnLongClickListener(listener);
        return this;
    }


    /**
     * 隐藏或展示Item
     *
     * @param visible
     */
    public void setItemVisible(boolean visible) {
        if (null != itemView) {
            if (visible) {
                if (null != itemView.getLayoutParams()) {
                    itemView.getLayoutParams().width = AbsListView.LayoutParams.MATCH_PARENT;
                    itemView.getLayoutParams().height = AbsListView.LayoutParams.WRAP_CONTENT;
                } else {
                    itemView.setLayoutParams(new AbsListView.LayoutParams(AbsListView.LayoutParams.MATCH_PARENT, AbsListView.LayoutParams.WRAP_CONTENT));
                }
                itemView.setVisibility(View.VISIBLE);
            } else {
                if (null != itemView.getLayoutParams()) {
                    itemView.getLayoutParams().width = -1;
                    itemView.getLayoutParams().height = 1;
                } else {
                    itemView.setLayoutParams(new AbsListView.LayoutParams(-1, 1));
                }
                itemView.setVisibility(View.GONE);
            }
        }
    }

    public void setHItemVisible(boolean visible) {
        if (null != itemView) {
            if (visible) {
                if (null != itemView.getLayoutParams()) {
                    itemView.getLayoutParams().width = AbsListView.LayoutParams.WRAP_CONTENT;
                    itemView.getLayoutParams().height = AbsListView.LayoutParams.WRAP_CONTENT;
                } else {
                    itemView.setLayoutParams(new AbsListView.LayoutParams(AbsListView.LayoutParams.MATCH_PARENT, AbsListView.LayoutParams.WRAP_CONTENT));
                }
                itemView.setVisibility(View.VISIBLE);
            } else {
                if (null != itemView.getLayoutParams()) {
                    itemView.getLayoutParams().width = -1;
                    itemView.getLayoutParams().height = 1;
                } else {
                    itemView.setLayoutParams(new AbsListView.LayoutParams(-1, 1));
                }
                itemView.setVisibility(View.GONE);
            }
        }
    }
}