Android ExpandableListView 带有Checkbox的简单应用

expandablelistview2_groups.xml


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

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent" >


<TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentLeft="true"

        android:layout_centerVertical="true" />


<ImageView

        android:id="@+id/imageView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentRight="true"

        android:layout_centerVertical="true" />


<CheckBox

        android:id="@+id/checkBox1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_centerVertical="true"

        android:layout_toLeftOf="@id/imageView1"

        android:focusable="false"

        android:focusableInTouchMode="false" />


</RelativeLayout>

expandablelistview2_child.xml


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

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent" >


<TextView

        android:id="@+id/textView1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentLeft="true"

        android:layout_centerVertical="true" />


<CheckBox

        android:id="@+id/checkBox1"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_alignParentRight="true"

        android:layout_centerVertical="true"

        android:clickable="false"

        android:focusable="false"

        android:focusableInTouchMode="false" />


</RelativeLayout>

Expandablelistview2Activity.java


package com.wangzhu.demoexpandablelistview;


import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;


import android.app.Activity;

import android.os.Bundle;

import android.util.Log;

import android.view.Gravity;

import android.view.View;

import android.view.ViewGroup;

import android.widget.AbsListView;

import android.widget.BaseExpandableListAdapter;

import android.widget.CheckBox;

import android.widget.CompoundButton;

import android.widget.ExpandableListView;

import android.widget.ImageView;

import android.widget.TextView;

import android.widget.Toast;


public class Expandablelistview2Activity extends Activity {


private final static String TAG = "Expandablelistview2Activity";

    /**

     * 定义组数据

     */

    private List<String> groupDataList;

    /**

     * 定义组中的子数据

     */

    private List<List<String>> childDataList;


private ExpandableListView expandableListView;

    private ExpandableAdapter adapter;


/**

     * 0：不可选 1：未选中 2：半选 3：选中

     */

    private List<Map<Integer, Integer>> isSelectedList;


@Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.expandablelistview1);

        loadData();

        expandableListView = (ExpandableListView) findViewById(R.id.expandableListView1);


// expandableListView.setGroupIndicator(getResources().getDrawable(

        // R.drawable.indicator_selector));


expandableListView.setGroupIndicator(null);

        adapter = new ExpandableAdapter();

        expandableListView.setAdapter(adapter);

        expandableListView

                .setOnGroupExpandListener(new ExpandableListView.OnGroupExpandListener() {


@Override

                    public void onGroupExpand(int groupPosition) {

                        // 只展开一个

                        for (int i = 0, count = expandableListView.getCount(); i < count; i++) {

                            if (groupPosition != i) {

                                expandableListView.collapseGroup(i);

                            }

                        }

                    }

                });


expandableListView

                .setOnChildClickListener(new ExpandableListView.OnChildClickListener() {


@Override

                    public boolean onChildClick(ExpandableListView parent,

                            View v, int groupPosition, int childPosition,

                            long id) {

                        Toast.makeText(

                                Expandablelistview2Activity.this,

                                "onChildClick===="

                                        + adapter.getChild(groupPosition,

                                                childPosition) + "===="

                                        + v.getParent(), Toast.LENGTH_LONG)

                                .show();

                        ViewHolder viewHolder = (ViewHolder) v.getTag();

                        viewHolder.checkBox.toggle();

                        if (viewHolder.checkBox.isChecked()) {

                            isSelectedList.get(groupPosition).put(

                                    childPosition, 3);

                        } else {

                            isSelectedList.get(groupPosition).put(

                                    childPosition, 1);

                        }

                        int count = 0;

                        for (int i = 0, size = isSelectedList

                                .get(groupPosition).size(); i < size; i++) {

                            if (isSelectedList.get(groupPosition).get(i) == 3) {

                                count++;

                            }

                        }

                        View view = (View) v.getParent();

                        Log.d(TAG, "view=" + view.findViewById(R.id.checkBox1));

                        CheckBox ck = (CheckBox) view

                                .findViewById(R.id.checkBox1);

                        if (count == isSelectedList.get(groupPosition).size()) {

                            // ck.setBackgroundResource(R.drawable.btn_select);

                            ck.setButtonDrawable(R.drawable.btn_select);

                        } else if (count > 0) {

                            // ck.setBackgroundResource(R.drawable.btn_half);

                            ck.setButtonDrawable(R.drawable.btn_half);

                        } else {

                            // ck.setBackgroundResource(R.drawable.btn_unselect);

                            ck.setButtonDrawable(R.drawable.btn_unselect);

                        }

                        adapter.notifyDataSetChanged();

                        return false;

                    }

                });


isSelectedList = new ArrayList<Map<Integer, Integer>>();

        for (int i = 0, icount = expandableListView.getCount(); i < icount; i++) {

            Map<Integer, Integer> map = new HashMap<Integer, Integer>();

            for (int j = 0, jcount = childDataList.get(i).size(); j < jcount; j++) {

                map.put(j, 1);

            }

            isSelectedList.add(map);

        }

    }


/**

     * 全部展开或关闭

     *

     * @param flag

     */

    private void showOrhide(boolean flag) {

        for (int i = 0, count = expandableListView.getCount(); i < count; i++) {

            if (flag) {

                expandableListView.expandGroup(i);

            } else {

                expandableListView.collapseGroup(i);

            }

        }

    }


private void loadData() {

        groupDataList = new ArrayList<String>();

        groupDataList.add("国家");

        groupDataList.add("人物");

        groupDataList.add("武器");


childDataList = new ArrayList<List<String>>();


List<String> child1 = new ArrayList<String>();

        child1.add("魏国");

        child1.add("蜀国");

        child1.add("吴国");

        childDataList.add(child1);


List<String> child2 = new ArrayList<String>();

        child2.add("关羽");

        child2.add("张飞");

        child2.add("典韦");

        child2.add("吕布");

        child2.add("曹操");

        child2.add("甘宁");

        child2.add("郭嘉");

        child2.add("周瑜");

        childDataList.add(child2);


List<String> child3 = new ArrayList<String>();

        child3.add("青龙偃月刀");

        child3.add("丈八蛇矛枪");

        child3.add("青钢剑");

        child3.add("麒麟弓");

        child3.add("银月枪");

        childDataList.add(child3);

    }


private class ExpandableAdapter extends BaseExpandableListAdapter {


@Override

        public int getGroupCount() {

            return groupDataList.size();

        }


@Override

        public int getChildrenCount(int groupPosition) {

            return childDataList.get(groupPosition).size();

        }


@Override

        public Object getGroup(int groupPosition) {

            return groupDataList.get(groupPosition);

        }


@Override

        public Object getChild(int groupPosition, int childPosition) {

            return childDataList.get(groupPosition).get(childPosition);

        }


@Override

        public long getGroupId(int groupPosition) {

            return groupPosition;

        }


@Override

        public long getChildId(int groupPosition, int childPosition) {

            return childPosition;

        }


@Override

        public boolean hasStableIds() {

            return false;

        }


@Override

        public View getGroupView(final int groupPosition, boolean isExpanded,

                View convertView, ViewGroup parent) {


Log.d(TAG, "getGroupView");

            ViewHolder viewHolder = null;

            if (null == convertView) {

                convertView = View.inflate(Expandablelistview2Activity.this,

                        R.layout.expandablelistview2_groups, null);

                viewHolder = new ViewHolder();

                viewHolder.textView = (TextView) convertView

                        .findViewById(R.id.textView1);

                viewHolder.checkBox = (CheckBox) convertView

                        .findViewById(R.id.checkBox1);

                viewHolder.imageView = (ImageView) convertView

                        .findViewById(R.id.imageView1);

                convertView.setTag(viewHolder);

            } else {

                viewHolder = (ViewHolder) convertView.getTag();

            }


viewHolder.textView.setText(groupDataList.get(groupPosition));

            viewHolder.checkBox

                    .setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {


@Override

                        public void onCheckedChanged(CompoundButton buttonView,

                                boolean isChecked) {

                            int flag = 0;

                            if (isChecked) {

                                flag = 3;

                            } else {

                                flag = 1;

                            }

                            for (int i = 0, size = isSelectedList.get(

                                    groupPosition).size(); i < size; i++) {

                                isSelectedList.get(groupPosition).put(i, flag);

                            }

                            notifyDataSetChanged();

                        }

                    });

            int size = 0;

            for (int i = 0, count = isSelectedList.get(groupPosition).size(); i < count; i++) {

                if (isSelectedList.get(groupPosition).get(i) == 3) {

                    size++;

                }

            }

            if (size == isSelectedList.get(groupPosition).size()) {

                // viewHolder.checkBox

                // .setBackgroundResource(R.drawable.btn_select);

                viewHolder.checkBox.setButtonDrawable(R.drawable.btn_select);

            } else if (size > 0) {

                // viewHolder.checkBox.setBackgroundResource(R.drawable.btn_half);

                viewHolder.checkBox.setButtonDrawable(R.drawable.btn_half);

            } else {

                // viewHolder.checkBox

                // .setBackgroundResource(R.drawable.btn_unselect);

                viewHolder.checkBox.setButtonDrawable(R.drawable.btn_unselect);

            }


// 判断isExpanded就可以控制是按下还是关闭，同时更换图片

            if (isExpanded) {

                viewHolder.imageView

                        .setBackgroundResource(R.drawable.shangiantou);

            } else {

                viewHolder.imageView

                        .setBackgroundResource(R.drawable.xiajiantou);

            }


return convertView;

        }


@Override

        public View getChildView(int groupPosition, int childPosition,

                boolean isLastChild, View convertView, ViewGroup parent) {


Log.d(TAG, "getChildView");

            // TextView textView = null;

            // if (null != convertView) {

            // textView = (TextView) convertView;

            // textView.setText(childDataList.get(groupPosition).get(

            // childPosition));

            // } else {

            // textView = createView(childDataList.get(groupPosition).get(

            // childPosition));

            // }

            // return textView;


ViewHolder viewHolder = null;

            if (null == convertView) {

                convertView = View.inflate(Expandablelistview2Activity.this,

                        R.layout.expandablelistview2_child, null);

                viewHolder = new ViewHolder();

                viewHolder.textView = (TextView) convertView

                        .findViewById(R.id.textView1);


viewHolder.checkBox = (CheckBox) convertView

                        .findViewById(R.id.checkBox1);

                convertView.setTag(viewHolder);

            } else {

                viewHolder = (ViewHolder) convertView.getTag();

            }


if (isSelectedList.get(groupPosition).get(childPosition) == 3) {

                // viewHolder.checkBox

                // .setBackgroundResource(R.drawable.btn_select);

                // 更改CheckBox的外观

                viewHolder.checkBox.setButtonDrawable(R.drawable.btn_select);

            } else {

                // viewHolder.checkBox

                // .setBackgroundResource(R.drawable.btn_unselect);

                viewHolder.checkBox.setButtonDrawable(R.drawable.btn_unselect);

            }

            viewHolder.textView.setText(childDataList.get(groupPosition).get(

                    childPosition));

            return convertView;

        }


@Override

        public boolean isChildSelectable(int groupPosition, int childPosition) {

            return true;

        }


private TextView createView(String content) {

            TextView textView = null;

            AbsListView.LayoutParams layoutParams = new AbsListView.LayoutParams(

                    ViewGroup.LayoutParams.MATCH_PARENT, 80);

            textView = new TextView(Expandablelistview2Activity.this);

            textView.setLayoutParams(layoutParams);

            textView.setGravity(Gravity.CENTER_VERTICAL | Gravity.LEFT);

            textView.setPadding(80, 0, 0, 0);

            textView.setText(content);

            return textView;

        }


}


private class ViewHolder {

        TextView textView;

        CheckBox checkBox;

        ImageView imageView;

    }

}

所需图片：

备注：

是否发现缺少了一个主布局文件（expandablelistview1.xml）？它在我的前一篇中，这两篇所用都是同一个主布局文件。

简单的实现了一下，请各位多多指教，菜鸟在这儿恭候！

效果图：

Android ExpandableListView 带有Checkbox的简单应用,布布扣,bubuko.com

时间： 2024-04-18 08:15:27

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