ExpandableListView复选操作

今天公司有一个需求是ExpandableListView包含复选操作,应为没有做过双层的复选所以写一篇博客,希望对看到的人有所启发其中有队ChecxBox添加标记防止ChecxBox选择错位，对这块不了解的可以看一下我的当ListView的item为CheckBox,EditText,Spinner的时候处理滑动数据错乱这篇文章。

那么先来看看MainActivity的代码

public class MainActivity extends AppCompatActivity {
    //适配器
    private ExpandableAdapter adapter;
    @BindView(R.id.mListView)
    ExpandableListView mListView;
    //数据源
    private List<ParentInfo> lists=new ArrayList<ParentInfo>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        ButterKnife.bind(this);
        init();
        //引用
        adapter=new ExpandableAdapter(this,lists);
        mListView.setAdapter(adapter);
    }
    //初始化数据
    private void init(){
        for(int i=0;i<10;i++){
          ParentInfo po=new ParentInfo();
            ArrayList<ChildInfo> list=new ArrayList<ChildInfo>();
            po.setTitle("哈哈"+i);
            for (int j = 0; j <5; j++) {
                ChildInfo chd=new ChildInfo();
                chd.setTitle("呵呵"+j);
                list.add(chd);
            }
            po.setChildList(list);
            lists.add(po);
        }
    }
}

可以看到在MainActivity中我们的代码是很少的主要的代码都在ExpandableAdapter中

package com.demo;import java.util.ArrayList;import java.util.List;import com.ypy.eventbus.EventBus;import android.content.Context;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseExpandableListAdapter;import android.widget.CheckBox;import android.widget.CompoundButton;import android.widget.CompoundButton.OnCheckedChangeListener;import android.widget.TextView;public class ExpandableAdapter extends BaseExpandableListAdapter  { private Context context; private List<TestInfo> list; private boolean isAll=false; public ExpandableAdapter(Context context, List<TestInfo> list) { super(); this.context = context; this.list = list; } public List<TestInfo> getList() { return list; } public ExpandableAdapter() { super(); } @Override public int getGroupCount() { return list.size(); } @Override public int getChildrenCount(int groupPosition) { return list.get(groupPosition).getChild().size(); } @Override public Object getGroup(int groupPosition) { return list.get(groupPosition); } @Override public Object getChild(int groupPosition, int childPosition) { return list.get(groupPosition).getChild().get(childPosition); } @Override public long getGroupId(int groupPosition) { return 0; } @Override public long getChildId(int groupPosition, int childPosition) { return 0; } @Override public boolean hasStableIds() { return false; } ViewHolder vh; @Override public View getGroupView(int groupPosition, boolean isExpanded, View v, ViewGroup parent) { if(v==null){ v=LayoutInflater.from(context).inflate(R.layout.item, null,false); vh=new ViewHolder(v); vh.chx_parent.setOnCheckedChangeListener(new MyParentCheckedChangeListener(vh.chx_parent));  v.setTag(vh); }else{ vh=(ViewHolder) v.getTag(); } TestInfo ts=list.get(groupPosition); vh.chx_parent.setFocusable(false); vh.tv_parent.setText(ts.getTitle()); vh.chx_parent.setTag(groupPosition); vh.chx_parent.setChecked(ts.isChecx()); return v; } class MyParentCheckedChangeListener implements OnCheckedChangeListener{ CheckBox check; public MyParentCheckedChangeListener() { super(); } public MyParentCheckedChangeListener(CheckBox check) { super(); this.check = check; } @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { int index=(Integer) check.getTag(); TestInfo test=list.get(index); ArrayList<ChildInfo> child=test.getChild(); int size=child.size(); boolean ischex=false; if(isChecked){ for (int i = 0; i<size; i++) { child.get(i).setChecx(true); } test.setChecx(isChecked); }else{ for (int i = 0; i<size; i++) { if(child.get(i).isChecx()){ ischex=true; }else{ ischex=false; break; } } if(ischex){ for (int i = 0; i<size; i++) { child.get(i).setChecx(false); } test.setChecx(false); }else{ test.setChecx(false); } } init(); EventBus.getDefault().post(new RefreshEvent(isAll)); notifyDataSetChanged(); } } ViewHolder2 vh2; @Override public View getChildView(int groupPosition, int childPosition, boolean isLastChild, View v, ViewGroup parent) { if(v==null){ v=LayoutInflater.from(context).inflate(R.layout.item_child, null,false); vh2=new ViewHolder2(v); vh2.chx_child.setOnCheckedChangeListener(new MyChildCheckedChangeListener(vh2.chx_child)); v.setTag(vh2); }else{ vh2=(ViewHolder2) v.getTag(); } TestInfo ts=list.get(groupPosition); ArrayList<ChildInfo> titls=ts.getChild(); vh2.chx_child.setFocusable(false); Bundle bund=new Bundle(); bund.putInt("parent", groupPosition); bund.putInt("child", childPosition); vh2.chx_child.setTag(bund); vh2.tv_child.setText(titls.get(childPosition).getTitle()); vh2.chx_child.setChecked((titls.get(childPosition).isChecx())); return v; } class MyChildCheckedChangeListener implements OnCheckedChangeListener{ CheckBox check; public MyChildCheckedChangeListener() { super(); } public MyChildCheckedChangeListener(CheckBox check) { super(); this.check = check; } @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { Bundle bund=(Bundle) check.getTag(); int parent=bund.getInt("parent"); int child=bund.getInt("child"); TestInfo test=list.get(parent); ArrayList<ChildInfo> childInfo=test.getChild(); ChildInfo co=childInfo.get(child); co.setChecx(isChecked); int size=childInfo.size(); boolean ischex=false; for (int i = 0; i<size; i++) { if(childInfo.get(i).isChecx()){ ischex=true; }else{ ischex=false; break; } } test.setChecx(ischex); init(); EventBus.getDefault().post(new RefreshEvent(isAll)); notifyDataSetChanged(); } } @Override public boolean isChildSelectable(int groupPosition, int childPosition) { return false; } class ViewHolder{ private TextView tv_parent; private CheckBox chx_parent; public ViewHolder() { super(); } public ViewHolder(View v) { tv_parent=(TextView) v.findViewById(R.id.tv_parent); chx_parent=(CheckBox) v.findViewById(R.id.chx_parent); } } class ViewHolder2{ private TextView tv_child; private CheckBox chx_child; public ViewHolder2() { super(); } public ViewHolder2(View v) { tv_child=(TextView) v.findViewById(R.id.tv_child); chx_child=(CheckBox) v.findViewById(R.id.chx_child); } } private void init(){ for (int i = 0; i <10; i++) { TestInfo tt=new TestInfo(); if(tt.isChecx()){ isAll=true; }else{ isAll=false; break; } ArrayList<ChildInfo> list=tt.getChild(); for (int j = 0; j <5; j++) { ChildInfo childInfo=list.get(i); if(childInfo.isChecx()){ isAll=true; }else{ isAll=false; break; } } if(isAll==false){ break; } } }}

通过实体bean来判断是否选中

public class ChildInfo implements Serializable {
    //子项标题
    private String title;
    //子项是否被选中
    private boolean isCheck;

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public boolean isCheck() {
        return isCheck;
    }

    public void setCheck(boolean check) {
        isCheck = check;
    }
}
           
    package com.kotlintest;

import java.io.Serializable;
import java.util.ArrayList;

/**
 * Created by liuqiang on 2017/4/25.
 */

public class ParentInfo implements Serializable{
    //父级标题
    private String title;
    //对应的一个或多个子项
    private ArrayList<ChildInfo> childList;
    //父级是否选中
    private boolean isChecx;

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public ArrayList<ChildInfo> getChildList() {
        return childList;
    }

    public void setChildList(ArrayList<ChildInfo> childList) {
        this.childList = childList;
    }

    public boolean isChecx() {
        return isChecx;
    }

    public void setChecx(boolean checx) {
        isChecx = checx;
    }
}
                   

 最后在附上我的布局文件                //activity_main.xml
           
    <?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="com.kotlintest.MainActivity">

    <ExpandableListView
        android:id="@+id/mListView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scrollbars="none"
        >

    </ExpandableListView>


</android.support.constraint.ConstraintLayout>
                   
//item.xml
        <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v7.widget.LinearLayoutCompat
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="50dp"
        android:layout_marginRight="30dp"
        android:layout_marginTop="10dp"
        android:orientation="horizontal"
        >

        <TextView
            android:id="@+id/tv_parent"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:textSize="16dp"
            android:layout_weight="9" />

        <CheckBox
            android:id="@+id/chx_parent"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            />

    </android.support.v7.widget.LinearLayoutCompat>

</LinearLayout>
                   
//item_chil.xml
        <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <android.support.v7.widget.LinearLayoutCompat
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginLeft="30dp"
        android:layout_marginRight="10dp"
        android:layout_marginTop="10dp"
        android:orientation="horizontal"
        >

        <TextView
            android:id="@+id/tv_child"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:textSize="16dp"
            android:layout_weight="9" />

        <CheckBox
            android:id="@+id/chx_child"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            />
    </android.support.v7.widget.LinearLayoutCompat>

</LinearLayout>

ExpandableListView复选操作

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