本文介绍了Android的ExpandableListView复选框选择已点击复选框的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我在 ExpandableListViews 一个快速的问题，并使用复选框。我下方会显示出当前code。我现在有一个 ExpandableListView 在每个子行的复选框。
这些复选框可以选择等，但问题是我有很多孩子在我的 ExpandableListView 。所以，问题是，当我检查中，它表明一个以上的复选框被选中。所以，如果我检查的第一个孩子复选框，这也表明了第六或第七的孩子也被选中。
包com.WebGems.MW3CustomClasses;
进口的java.util.ArrayList;
进口的java.util.HashMap;
进口的java.util.Map;
进口android.app.Activity;
进口android.content.Context;
进口android.graphics.drawable.Drawable;
进口android.os.Bundle;
进口android.util.Log;
进口android.view.LayoutInflater;
进口android.view.View;
进口android.view.ViewGroup;
进口android.widget.CheckBox;
进口android.widget.ExpandableListView;
进口android.widget.ExpandableListView.OnChildClickListener;
进口android.widget.ImageView;
进口android.widget.SimpleExpandableListAdapter;
进口android.widget.TextView;
公共类PrimaryWeapon延伸活动{
ExpandableListView listPrimaryWeapon;
//攻击包的ArrayList
ArrayList的assaultPackage =新的ArrayList（）;
@覆盖
公共无效的onCreate（包savedInstanceState）{
super.onCreate（savedInstanceState）;
的setContentView（R.layout.primary_weapon）;
listPrimaryWeapon =（ExpandableListView）findViewById（R.id.listView1）;
捆绑额外= getIntent（）getExtras（）。
字符串类型= extras.getString（类）;
如果（type.equals（攻击））{
showAssaultPackageList（）;
}
}
私人无效showAssaultPackageList（）{
// TODO自动生成方法存根
assaultPackage.add（无人机）;
assaultPackage.add（爱心包裹）;
assaultPackage.add（I.M.S。）;
assaultPackage.add（preDATOR导弹）;
assaultPackage.add（步哨枪）;
assaultPackage.add（preCISION空袭）;
assaultPackage.add（攻击直升机）;
assaultPackage.add（扫射RUN）;
assaultPackage.add（AH-6监工）;
assaultPackage.add（收割）;
assaultPackage.add（突击无人机）;
assaultPackage.add（AC-130）;
assaultPackage.add（PAVE LOW）;
assaultPackage.add（重量级）;
assaultPackage.add（OS preY炮手）;
//构造扩展列表
最终的字符串名称=名称;
最终的字符串图像=形象;
最终的字符串数据=数据;
最终的串号=号;
最后LayoutInflater layoutInflater =（LayoutInflater）this.getSystemService（Context.LAYOUT_INFLATER_SERVICE）;
最后的ArrayList＆LT; HashMap的＆LT;字符串，字符串＆GT;＆GT; headerData =新的ArrayList＆LT; HashMap的＆LT;字符串，字符串＆GT;＆GT;（）;
最后的HashMap＆LT;字符串，字符串＆GT;组别1 =新的HashMap＆LT;字符串，字符串＆GT;（）;
group1.put（名字，突击包）;
headerData.add（1组）;
最后的ArrayList＆LT; ArrayList的＆LT; HashMap的＆LT;字符串，对象＆gt;＆GT;＆GT; childData =新的ArrayList＆LT; ArrayList的＆LT; HashMap的＆LT;字符串，对象＆gt;＆GT;＆GT;（）;
最后的ArrayList＆LT; HashMap的＆LT;字符串，对象＆gt;＆GT; group1data =新的ArrayList＆LT; HashMap的＆LT;字符串，对象＆gt;＆GT;（）;
childData.add（group1data）;
INT assaultPackageCounter = 0;
对于（INT臂= 0;臂LT; assaultPackage.size（）; ++ ARM）{
最后的HashMap＆LT;字符串，对象＆gt; assaultPackageMap =新的HashMap＆LT;字符串，对象＆gt;（）;
assaultPackageMap.put（姓名，assaultPackage.get（ARM））;
如果（assaultPackageCounter == 0）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable.uav））;
assaultPackageMap.put（DATA无人机说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.three））;
}
如果（assaultPackageCounter == 1）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable.carepackage））;
assaultPackageMap.put（DATA，爱心包裹说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.four））;
}
如果（assaultPackageCounter == 2）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable.ims））;
assaultPackageMap.put（DATA，IMS描述）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.five））;
}
如果（assaultPackageCounter == 3）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable predatormissile））;
assaultPackageMap.put（DATA，preDATOR导弹说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.five））;
}
如果（assaultPackageCounter == 4）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable.sentrygun））;
assaultPackageMap.put（DATA，步哨枪说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.five））;
}
如果（assaultPackageCounter == 5）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable precisionairstrike））;
assaultPackageMap.put（DATA，preCISION空袭说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.six））;
}
如果（assaultPackageCounter == 6）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable.attackhelicopter））;
assaultPackageMap.put（DATA，攻击直升机说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.seven））;
}
如果（assaultPackageCounter == 7）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable.straferun））;
assaultPackageMap.put（DATA扫射RUN说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.nine））;
}
如果（assaultPackageCounter == 8）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable.ahsixoverwatch））;
assaultPackageMap.put（DATA，AH-6监工说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.nine））;
}
如果（assaultPackageCounter == 9）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable.reaper））;
assaultPackageMap.put（DATA，REAPER说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.nine））;
}
如果（assaultPackageCounter == 10）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable.assaultdrone））;
assaultPackageMap.put（DATA，突击无人机说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.ten））;
}
如果（assaultPackageCounter == 11）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable.aconethreezero））;
assaultPackageMap.put（DATA，AC-130说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.twelve））;
}
如果（assaultPackageCounter == 12）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable.pavelow））;
assaultPackageMap.put（DATA，PAVE不足说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.twelve））;
}
如果（assaultPackageCounter == 13）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable.juggernaut））;
assaultPackageMap.put（DATA重量级说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.fifteen））;
}
如果（assaultPackageCounter == 14）{
assaultPackageMap.put（IMAGE，getResources（）getDrawable（R.drawable.os preygunner））;
assaultPackageMap.put（DATA，OS preY炮手说明）;
assaultPackageMap.put（NUMBER，getResources（）getDrawable（R.drawable.seventeen））;
}
assaultPackageCounter ++;
group1data.add（assaultPackageMap）;
}
assaultPackageCounter = 0;
//两组设置一些示例数据
/ *的for（int i = 0;我小于10 ++我）{
最后的HashMap＆LT;字符串，对象＆gt;图=新的HashMap＆LT;字符串，对象＆gt;（）;
map.put（NAME，儿童+ I）;
//map.put(DATA，数据+ I）;
map.put（IMAGE，getResources（）getDrawable（（我％3 == 0 R.drawable.arrowright：R.drawable.arrowdown）））;
（？I％2 == 0 group1data：group2data）。新增（图）
} * /
listPrimaryWeapon.setAdapter（新SimpleExpandableListAdapter（
本，
headerData，
R.layout.group_row，
新的String [] {名，数据} //数据的名称
新的INT [] {} R.id.groupname，//文本字段来填充字段数据
childData，
0，
空值，
新的INT [] {}
）{
@覆盖
公共查看getChildView（INT groupPosition，诠释childPosition，布尔isLastChild，查看convertView，ViewGroup中父）{
最终的视图V = super.getChildView（groupPosition，childPosition，isLastChild，convertView，父母）;
//在这里填写您的自定义视图
（（TextView中）v.findViewById（R.id.name））的setText（（字符串）（（地图＆LT;字符串，对象＆gt;）getChild（groupPosition，childPosition））得到（名））;
（（TextView中）v.findViewById（R.id.textView1））的setText（（字符串）（（地图＆LT;字符串，对象＆gt;）getChild（groupPosition，childPosition））得到（DATA））;
（（ImageView的）v.findViewById（R.id.image））setImageDrawable。（（可绘制）（（地图＆LT;字符串，对象＆gt;）getChild（groupPosition，childPosition））得到（图片））;
（（ImageView的）v.findViewById（R.id.imageView1））setImageDrawable。（（可绘制）（（地图＆LT;字符串，对象＆gt;）getChild（groupPosition，childPosition））得到（NUMBER））;
复选框CB =（复选框）v.findViewById（R.id.checkBox1）;
cb.setClickable（假）;
返回伏;
}
@覆盖
公共查看newChildView（布尔isLastChild，ViewGroup中父）{
返回layoutInflater.inflate（R.layout.strikepackagelayout，空，假）;
}
}
）;
ExpandableListView名单=（ExpandableListView）findViewById（R.id.listView1）;
list.setChoiceMode（ExpandableListView.CHOICE_MODE_MULTIPLE）;
list.setOnChildClickListener（新OnChildClickListener（）{
公共布尔onChildClick（ExpandableListView父，视图V，
INT groupPosition，诠释childPosition，长ID）{
复选框CB =（复选框）v.findViewById（R.id.checkBox1）;
如果（CB！= NULL）{
cb.toggle（）;
}
Log.d（类，组：+ groupPosition +，儿童：+ childPosition）;
的System.out.println（本集团+ groupPosition +，儿童：+ childPosition）;
返回true;
}
}）;
listPrimaryWeapon.expandGroup（0）;
}
}
解决方案
可扩展列表视图每次移动时回收的观点。所以你需要保存每个视图的状态。
1>设置不同的ID为每个复选框。类似的东西 checkBox.setId（groupPosition + 1）;
2>添加选中的复选框ID到哈希地图对象像
checkBox.setOnCheckedChangeListener（
新CompoundButton.OnCheckedChangeListener（）{
@覆盖
公共无效onCheckedChanged（如果（checkBox.isChecked（））{
mapViewState.put（checkBox.getId（），
checkBoxSelected）;
} 其他 {
mapViewState.remove（复选框
.getId（））;
}
}
}）;
，然后加载从HashMap中的复选框的状态，或者重复它来获得所选择的值。
I have a quick question on ExpandableListViews and using CheckBoxes. I will show the current code below. I currently have a ExpandableListView with a checkbox in each child row.
These checkboxes can be selected and such but the problem is I have many children in my ExpandableListView. So the problem is that when I check on box, it shows that more than one checkbox is selected. So if I check the first child checkbox it also shows that the 6th or 7th child is also selected.
package com.WebGems.MW3CustomClasses;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
import android.app.Activity;
import android.content.Context;
import android.graphics.drawable.Drawable;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.CheckBox;
import android.widget.ExpandableListView;
import android.widget.ExpandableListView.OnChildClickListener;
import android.widget.ImageView;
import android.widget.SimpleExpandableListAdapter;
import android.widget.TextView;
public class PrimaryWeapon extends Activity {
ExpandableListView listPrimaryWeapon;
//Strike Package ArrayLists
ArrayList assaultPackage = new ArrayList();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.primary_weapon);
listPrimaryWeapon = (ExpandableListView)findViewById(R.id.listView1);
Bundle extras = getIntent().getExtras();
String type = extras.getString("type");
if(type.equals("assault")) {
showAssaultPackageList();
}
}
private void showAssaultPackageList() {
// TODO Auto-generated method stub
assaultPackage.add("UAV");
assaultPackage.add("CARE PACKAGE");
assaultPackage.add("I.M.S.");
assaultPackage.add("PREDATOR MISSILE");
assaultPackage.add("SENTRY GUN");
assaultPackage.add("PRECISION AIRSTRIKE");
assaultPackage.add("ATTACK HELICOPTER");
assaultPackage.add("STRAFE RUN");
assaultPackage.add("AH-6 OVERWATCH");
assaultPackage.add("REAPER");
assaultPackage.add("ASSAULT DRONE");
assaultPackage.add("AC-130");
assaultPackage.add("PAVE LOW");
assaultPackage.add("JUGGERNAUT");
assaultPackage.add("OSPREY GUNNER");
// Construct Expandable List
final String NAME = "name";
final String IMAGE = "image";
final String DATA = "data";
final String NUMBER = "number";
final LayoutInflater layoutInflater = (LayoutInflater) this.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
final ArrayList<HashMap<String, String>> headerData = new ArrayList<HashMap<String, String>>();
final HashMap<String, String> group1 = new HashMap<String, String>();
group1.put(NAME, "Assault Package");
headerData.add( group1 );
final ArrayList<ArrayList<HashMap<String, Object>>> childData = new ArrayList<ArrayList<HashMap<String, Object>>>();
final ArrayList<HashMap<String, Object>> group1data = new ArrayList<HashMap<String, Object>>();
childData.add(group1data);
int assaultPackageCounter = 0;
for(int arm = 0; arm < assaultPackage.size(); ++arm) {
final HashMap<String, Object> assaultPackageMap = new HashMap<String, Object>();
assaultPackageMap.put(NAME, assaultPackage.get(arm));
if(assaultPackageCounter == 0) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.uav));
assaultPackageMap.put(DATA, "UAV DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.three));
}
if(assaultPackageCounter == 1) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.carepackage));
assaultPackageMap.put(DATA, "CARE PACKAGE DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.four));
}
if(assaultPackageCounter == 2) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.ims));
assaultPackageMap.put(DATA, "IMS DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.five));
}
if(assaultPackageCounter == 3) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.predatormissile));
assaultPackageMap.put(DATA, "PREDATOR MISSILE DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.five));
}
if(assaultPackageCounter == 4) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.sentrygun));
assaultPackageMap.put(DATA, "SENTRY GUN DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.five));
}
if(assaultPackageCounter == 5) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.precisionairstrike));
assaultPackageMap.put(DATA, "PRECISION AIRSTRIKE DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.six));
}
if(assaultPackageCounter == 6) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.attackhelicopter));
assaultPackageMap.put(DATA, "ATTACK HELICOPTER DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.seven));
}
if(assaultPackageCounter == 7) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.straferun));
assaultPackageMap.put(DATA, "STRAFE RUN DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.nine));
}
if(assaultPackageCounter == 8) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.ahsixoverwatch));
assaultPackageMap.put(DATA, "AH-6 OVERWATCH DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.nine));
}
if(assaultPackageCounter == 9) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.reaper));
assaultPackageMap.put(DATA, "REAPER DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.nine));
}
if(assaultPackageCounter == 10) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.assaultdrone));
assaultPackageMap.put(DATA, "ASSAULT DRONE DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.ten));
}
if(assaultPackageCounter == 11) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.aconethreezero));
assaultPackageMap.put(DATA, "AC-130 DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.twelve));
}
if(assaultPackageCounter == 12) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.pavelow));
assaultPackageMap.put(DATA, "PAVE LOW DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.twelve));
}
if(assaultPackageCounter == 13) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.juggernaut));
assaultPackageMap.put(DATA, "JUGGERNAUT DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.fifteen));
}
if(assaultPackageCounter == 14) {
assaultPackageMap.put(IMAGE, getResources().getDrawable(R.drawable.ospreygunner));
assaultPackageMap.put(DATA, "OSPREY GUNNER DESCRIPTION");
assaultPackageMap.put(NUMBER, getResources().getDrawable(R.drawable.seventeen));
}
assaultPackageCounter++;
group1data.add(assaultPackageMap);
}
assaultPackageCounter = 0;
// Set up some sample data in both groups
/*for( int i=0; i<10; ++i) {
final HashMap<String, Object> map = new HashMap<String,Object>();
map.put(NAME, "Child " + i );
//map.put(DATA, "Data " + i);
map.put(IMAGE, getResources().getDrawable((i%3==0? R.drawable.arrowright : R.drawable.arrowdown)));
( i%2==0 ? group1data : group2data ).add(map);
}*/
listPrimaryWeapon.setAdapter( new SimpleExpandableListAdapter(
this,
headerData,
R.layout.group_row,
new String[] { NAME, DATA }, // the names of the data
new int[] { R.id.groupname }, // the text field to populate with the field data
childData,
0,
null,
new int[] {}
) {
@Override
public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
final View v = super.getChildView(groupPosition, childPosition, isLastChild, convertView, parent);
// Populate your custom view here
((TextView)v.findViewById(R.id.name)).setText( (String) ((Map<String,Object>)getChild(groupPosition, childPosition)).get(NAME) );
((TextView)v.findViewById(R.id.textView1)).setText( (String) ((Map<String,Object>)getChild(groupPosition, childPosition)).get(DATA) );
((ImageView)v.findViewById(R.id.image)).setImageDrawable( (Drawable) ((Map<String,Object>)getChild(groupPosition, childPosition)).get(IMAGE) );
((ImageView)v.findViewById(R.id.imageView1)).setImageDrawable( (Drawable) ((Map<String,Object>)getChild(groupPosition, childPosition)).get(NUMBER) );
CheckBox cb = (CheckBox)v.findViewById( R.id.checkBox1 );
cb.setClickable(false);
return v;
}
@Override
public View newChildView(boolean isLastChild, ViewGroup parent) {
return layoutInflater.inflate(R.layout.strikepackagelayout, null, false);
}
}
);
ExpandableListView list = (ExpandableListView) findViewById(R.id.listView1);
list.setChoiceMode(ExpandableListView.CHOICE_MODE_MULTIPLE);
list.setOnChildClickListener(new OnChildClickListener(){
public boolean onChildClick(ExpandableListView parent, View v,
int groupPosition, int childPosition, long id) {
CheckBox cb = (CheckBox)v.findViewById( R.id.checkBox1 );
if(cb != null){
cb.toggle();
}
Log.d("type", "Group: " + groupPosition + ", Child: " + childPosition);
System.out.println("Group:"+groupPosition+", Child: "+childPosition);
return true;
}
});
listPrimaryWeapon.expandGroup(0);
}
}
解决方案
As Expandable list view Recycle the view each time you move. so you need to save the state of each views.
1> set different id for each checkbox. something like that checkBox.setId(groupPosition + 1);
2> add the selected checkbox id to a hash map object like
checkBox.setOnCheckedChangeListener(
new CompoundButton.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(if (checkBox.isChecked()) {
mapViewState.put(checkBox.getId(),
checkBoxSelected);
} else {
mapViewState.remove(checkBox
.getId());
}
}
});
and then load the status of the check box from HashMap, or iterate it to get the selected values.
这篇关于Android的ExpandableListView复选框选择已点击复选框的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！