ViewHolder.java

/*
 * Copyright 2017 GcsSloop
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * Last modified 2017-03-11 22:24:54
 *
 * GitHub:  https://github.com/GcsSloop
 * Website: http://www.gcssloop.com
 * Weibo:   http://weibo.com/GcsSloop
 */

package com.gcssloop.diycode.base.app;

import android.content.Context;
import android.support.annotation.NonNull;
import android.util.SparseArray;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.bumptech.glide.Glide;
import com.bumptech.glide.load.engine.DiskCacheStrategy;
import com.gcssloop.diycode_sdk.log.Logger;

public class ViewHolder {

    private SparseArray<View> mViews;
    private View mRootView;

    public ViewHolder(LayoutInflater inflater, ViewGroup parent, int layoutId) {
        this.mViews = new SparseArray<View>();
        mRootView = inflater.inflate(layoutId, parent, false);
    }

    /**
     * 通过View的id来获取子View
     *
     * @param resId view的id
     * @param <T>   泛型
     * @return 子View
     */
    public <T extends View> T get(int resId) {
        View view = mViews.get(resId);
        //如果该View没有缓存过，则查找View并缓存
        if (view == null) {
            view = mRootView.findViewById(resId);
            mViews.put(resId, view);
        }
        if (view == null){
            Logger.e("View == null");
        }
        return (T) view;
    }

    /**
     * 获取布局View
     *
     * @return 布局View
     */
    public View getRootView() {
        return mRootView;
    }

    /**
     * 设置文本
     *
     * @param res_id view 的 id
     * @param text   文本内容
     * @return 是否成功
     */
    public boolean setText(CharSequence text, @NonNull int res_id) {
        try {
            TextView textView = get(res_id);
            textView.setText(text);
            return true;
        } catch (Exception e) {
            return false;
        }
    }

    public boolean setText(@NonNull int res_id, CharSequence text) {
        return setText(text, res_id);
    }

    public void loadImage(Context context, String url, int res_id) {
        ImageView imageView = get(res_id);
        String url2 = url;
        if (url.contains("diycode"))
            url2 = url.replace("large_avatar", "avatar");
        Glide.with(context).load(url2).diskCacheStrategy(DiskCacheStrategy.SOURCE).into(imageView);
    }

    /**
     * 设置监听器
     *
     * @param l   监听器
     * @param ids view 的 id
     */
    public void setOnClickListener(View.OnClickListener l, int... ids) {
        if (ids == null) {
            return;
        }
        for (int id : ids) {
            get(id).setOnClickListener(l);
        }
    }
}