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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：
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