Android仿人人客户端（v5(1)

最新推荐文章于 2025-05-26 21:56:14 发布

2401_89190823

最新推荐文章于 2025-05-26 21:56:14 发布

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文章标签： android

本文链接：https://blog.youkuaiyun.com/2401_89190823/article/details/145181044

版权

            R.drawable.left_panel_item_newsfeed_icon_selector,

            R.drawable.left_panel_item_message_icon_selector,

            R.drawable.left_panel_item_chat_icon_selector,

            R.drawable.left_panel_item_friends_icon_selector,

            R.drawable.left_panel_item_search_icon_selector};



    int[] secondGroupIcons = {

            R.drawable.left_panel_item_location_icon_selector, 

            R.drawable.left_panel_item_mainpage_icon_selector,

            R.drawable.left_panel_item_hot_icon_selector,

            R.drawable.left_panel_item_apps_icon_selector };



    int[] threeGroupIcons = {

            R.drawable.left_panel_item_settings_icon_selector, 

            R.drawable.left_panel_item_layout_icon_selector };



    addGroup(0, firstGroupNames, firstGroupIcons);

    addGroup(1, secondGroupNames, secondGroupIcons);

    addGroup(2, threeGroupNames, threeGroupIcons);




       3、自定类继承BaseExpandableListAdapter，实现左侧面板ExpandableListView组件的数据适配器

package com.everyone.android.adapter;

import java.util.List;

import android.content.Context;

import android.graphics.Color;

import android.util.TypedValue;

import android.view.Gravity;

import android.view.View;

import android.view.ViewGroup;

import android.widget.AbsListView;

import android.widget.BaseExpandableListAdapter;

import android.widget.LinearLayout;

import android.widget.TextView;

import com.everyone.android.R;

import com.everyone.android.entity.LeftPanelListItem;

/**

功能描述：左侧面板ExpandableListView组件数据适配器
@author android_ls

public class LeftPanelExListViewAdapter extends BaseExpandableListAdapter {

private Context mContext;



private List<LeftPanelListItem> mListItems;



public LeftPanelExListViewAdapter(Context context, List<LeftPanelListItem> listItems) {

    mContext = context;

    mListItems = listItems;

}



public LeftPanelListItem getChild(int groupPosition, int childPosition) {

    return mListItems.get(groupPosition).getGroups().get(childPosition);

}



public long getChildId(int groupPosition, int childPosition) {

    return childPosition;

}



public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {

    ViewHolder viewHolder = null;

    if (convertView == null) {

        convertView = getItemLayout(80, R.drawable.left_panel_item_selector, 18, Color.GRAY, 30);



        viewHolder = new ViewHolder();

        viewHolder.groupName = (TextView) convertView.findViewById(0);



        convertView.setTag(viewHolder);

    } else {

        viewHolder = (ViewHolder) convertView.getTag();

    }



    LeftPanelListItem listItem = getChild(groupPosition, childPosition);

    viewHolder.groupName.setCompoundDrawablesWithIntrinsicBounds(listItem.getDrawableId(), 0, 0, 0);

    viewHolder.groupName.setCompoundDrawablePadding(10);

    viewHolder.groupName.setText(listItem.getName());



    return convertView;

}



public int getChildrenCount(int groupPosition) {

    return mListItems.get(groupPosition).getGroups().size();

}



public LeftPanelListItem getGroup(int groupPosition) {

    return mListItems.get(groupPosition);

}



public int getGroupCount() {

    return mListItems.size();

}



public long getGroupId(int groupPosition) {

    return groupPosition;

}



public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {

    ViewHolder viewHolder = null;

    if (convertView == null) {

        convertView = getItemLayout(60, R.drawable.v5_0_1_desktop_list_item, 15, Color.WHITE, 20);



        viewHolder = new ViewHolder();

        viewHolder.groupName = (TextView) convertView.findViewById(0);



        convertView.setTag(viewHolder);

    } else {

        viewHolder = (ViewHolder) convertView.getTag();

    }



    viewHolder.groupName.setText(getGroup(groupPosition).getName());

    return convertView;

}



public boolean hasStableIds() {

    return false;

}



public boolean isChildSelectable(int groupPosition, int childPosition) {

    return true;

}



static class ViewHolder {

    public TextView groupName;

}



/**

 * 根据参数配置获取相应的Layout

 * @param height Layout高度

 * @param backgroundId Layout的背景图片ID

 * @param textSize 字体大小

 * @param txetColor 字体颜色

 * @param padding 文字距离左边的大小（间距）

 * @return LinearLayout

 */

private LinearLayout getItemLayout(int height, int backgroundId, int textSize, int txetColor, int padding) {

    LinearLayout layout = new LinearLayout(mContext);

    AbsListView.LayoutParams lp = new AbsListView.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, height);

    layout.setBackgroundResource(backgroundId);

    layout.setGravity(Gravity.CENTER_VERTICAL);

    layout.setLayoutParams(lp);



    TextView textView = new TextView(mContext);

    textView.setId(0);

    textView.setLayoutParams(new LinearLayout.LayoutParams(LinearLayout.LayoutParams.FILL_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT));

    textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, textSize);

    textView.setTextColor(txetColor);

    textView.setPadding(padding, 0, 0, 0);

    layout.addView(textView);



    return layout;

}

}




       4、给ExpandableListView设置数据适配器，并默认让所有组都展开

    mExListViewAdapter = new LeftPanelExListViewAdapter(this, mListItems);

    mExpandableListView.setAdapter(mExListViewAdapter);



    // 设置默认让所有组都展开

    for (int i = 0; i < mListItems.size(); i++) {

        mExpandableListView.expandGroup(i);

    }




四、完整代码



 strings.xml文件

<?xml version="1.0" encoding="utf-8"?>

<string name="app_name">CopyEveryone</string>



<string-array name="left_panel_group_names">

    <item>常用</item>

    <item>更多</item>

    <item>操作</item>

</string-array>

<string-array name="left_panel_first_group_names">

    <item>新鲜事</item>

    <item>消息</item>

    <item>聊天</item>

    <item>好友</item>

    <item>找人</item>

</string-array>

<string-array name="left_panel_second_group_names">

    <item>附近</item>

    <item>公共主页</item>

    <item>热门分享</item>

    <item>应用与游戏</item>

</string-array>

<string-array name="left_panel_group_three_names">

    <item>选项</item>

    <item>注销登录</item>

</string-array>




  

左侧面板的Item信息实体类

package com.everyone.android.entity;

import java.util.ArrayList;

/**

功能描述：左侧面板Item信息
@author android_ls

public class LeftPanelListItem {

private int id; // 唯一标识



private String name; // 操作项名称



private int drawableId; // 指示图标 #R.drawable.ic_launcher



private ArrayList<LeftPanelListItem> groups;



public int getId() { 

    return id;

}



public void setId(int id) {

    this.id = id;

}



public String getName() {

    return name;

}



public void setName(String name) {

    this.name = name;

}



public int getDrawableId() {

    return drawableId;

}



public void setDrawableId(int drawableId) {

    this.drawableId = drawableId;

}



public ArrayList<LeftPanelListItem> getGroups() {

    return groups;

}



public void setGroups(ArrayList<LeftPanelListItem> groups) {

    this.groups = groups;

}

}




  

仿人人主界面之左侧面板（LeftPanelActivity类）源码：

package com.everyone.android.ui;

import java.util.ArrayList;

import java.util.List;

import android.content.res.Resources;

import android.os.Bundle;

import android.widget.ExpandableListView;

import android.widget.ImageView;

import android.widget.TextView;

import com.everyone.android.AppBaseActivity;

import com.everyone.android.R;

import com.everyone.android.adapter.LeftPanelExListViewAdapter;

import com.everyone.android.entity.LeftPanelListItem;

/**

功能描述：仿人人主界面之左侧面板
@author android_ls

public class LeftPanelActivity extends AppBaseActivity {

/**

 * 用户图标显示组件

 */

private ImageView ivUserIcon;



/**

 * 用户名称显示组件

 */

private TextView tvNickname;



/**

 * 可展开的ListView组件

 */

private ExpandableListView mExpandableListView;



/**

 * ExpandableListView组件的数据适配器

 */

private LeftPanelExListViewAdapter mExListViewAdapter;



/**

 * ExpandableListView组件的数据源

 */

private List<LeftPanelListItem> mListItems = new ArrayList<LeftPanelListItem>();



/**

 * 分组名数组

 */

private String[] mGroupNames;



@Override

public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);



}



@Override

protected void setupView() {

    ivUserIcon = (ImageView) findViewById(R.id.iv_user_icon);

    tvNickname = (TextView) findViewById(R.id.tv_nickname);

    mExpandableListView = (ExpandableListView) findViewById(R.id.elv_list_view);



}



@Override

protected int getLayoutId() {

    return R.layout.left_panel;

}



@Override

protected void initializedData() {

    Resources resources = this.getResources();

    mGroupNames = resources.getStringArray(R.array.left_panel_group_names);



    String[] firstGroupNames = resources.getStringArray(R.array.left_panel_first_group_names);

    String[] secondGroupNames = resources.getStringArray(R.array.left_panel_second_group_names);

    String[] threeGroupNames = resources.getStringArray(R.array.left_panel_group_three_names);



    int[] firstGroupIcons = { 

            R.drawable.left_panel_item_newsfeed_icon_selector,

            R.drawable.left_panel_item_message_icon_selector,

            R.drawable.left_panel_item_chat_icon_selector,

            R.drawable.left_panel_item_friends_icon_selector,

            R.drawable.left_panel_item_search_icon_selector};



    int[] secondGroupIcons = {

            R.drawable.left_panel_item_location_icon_selector, 

            R.drawable.left_panel_item_mainpage_icon_selector,

            R.drawable.left_panel_item_hot_icon_selector,

            R.drawable.left_panel_item_apps_icon_selector };



    int[] threeGroupIcons = {

            R.drawable.left_panel_item_settings_icon_selector, 

            R.drawable.left_panel_item_layout_icon_selector };



    addGroup(0, firstGroupNames, firstGroupIcons);

    addGroup(1, secondGroupNames, secondGroupIcons);

    addGroup(2, threeGroupNames, threeGroupIcons);



    mExListViewAdapter = new LeftPanelExListViewAdapter(this, mListItems);

    mExpandableListView.setAdapter(mExListViewAdapter);



    // 设置默认让所有组都展开

    for (int i = 0; i < mListItems.size(); i++) {

        mExpandableListView.expandGroup(i);

    }

    

}



/**

 * 添加数据到指定的组

 * @param groupId 组ID

 * @param names 子项的名字数组

 * @param icons 子项的图标数组

 */

private void addGroup(int groupId, String[] names, int[] icons) {

    LeftPanelListItem listItem = new LeftPanelListItem();

    listItem.setId(groupId);

    listItem.setName(mGroupNames[groupId]);

    // 组没有操作指示图标

    // listItem.setDrawableId(drawableId);



    ArrayList<LeftPanelListItem> firstGroup = new ArrayList<LeftPanelListItem>();

    for (int i = 0; i < names.length; i++) {

        LeftPanelListItem firstGroupItem = new LeftPanelListItem();

        firstGroupItem.setId(i);

        firstGroupItem.setName(names[i]);

        firstGroupItem.setDrawableId(icons[i]);



        // 可以无限延伸

        // firstGroupItem.setGroups(null);

        firstGroup.add(firstGroupItem);

    }



    listItem.setGroups(firstGroup);