android实现aop Android实现简单购物app

项目需要，然后开始做，其实方式有多种，博主犯懒选了个简单的方式来进行实现的

按照购物车的需要，首先必须有商品，这个商品输入那个店铺的，这样抽象一下相当于要把多个一对多做成动态数组

这个是最基本的，再有就是需要在购物车中进行选择，编辑的操作

再有就是增加用户的信息，类似商品推荐等等，先把基本的做好

首先需要定义相应的实例，商品实例，店铺实例，店铺商品一对多实例，可以抽象成泛型，泛型真是好东西啊！！！一个是可以节约代码，另一个是后期维护比较简单

商品实例：

childitembean

package com.fanyafeng.nested.ExpandListView;

import android.os.Parcel;
import android.os.Parcelable;

/**
 * Created by fanyafeng on 2016/2/23,0023.
 */
public class ChildItemBean implements Parcelable,Comparable{
    private boolean childIsChecked;
    private String childImage;
    private String name;
    private int count;

    public ChildItemBean(boolean childIsChecked, String childImage, String name, int count) {
        this.childIsChecked = childIsChecked;
        this.childImage = childImage;
        this.name = name;
        this.count = count;
    }

    public boolean isChildIsChecked() {
        return childIsChecked;
    }

    public void setChildIsChecked(boolean childIsChecked) {
        this.childIsChecked = childIsChecked;
    }

    public String getChildImage() {
        return childImage;
    }

    public void setChildImage(String childImage) {
        this.childImage = childImage;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getCount() {
        return count;
    }

    public void setCount(int count) {
        this.count = count;
    }

    @Override
    public String toString() {
        return "ChildItemBean{" +
                "childIsChecked=" + childIsChecked +
                ", childImage='" + childImage + '\'' +
                ", name='" + name + '\'' +
                ", count=" + count +
                '}';
    }

    @Override
    public int compareTo(Object another) {
        return 0;
    }

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeByte((byte) (childIsChecked ? 1 : 0));
        dest.writeString(childImage);
        dest.writeString(name);
        dest.writeInt(count);
    }

    protected ChildItemBean(Parcel in) {
        childIsChecked = in.readByte() != 0;
        childImage = in.readString();
        name = in.readString();
        count = in.readInt();
    }

    public static final Creator<ChildItemBean> CREATOR = new Creator<ChildItemBean>() {
        @Override
        public ChildItemBean createFromParcel(Parcel in) {
            return new ChildItemBean(in);
        }

        @Override
        public ChildItemBean[] newArray(int size) {
            return new ChildItemBean[size];
        }
    };
}

商品xml布局：

<?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="wrap_content"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="60dp"
        android:orientation="horizontal"
        android:padding="10dp">

        <CheckBox
            android:id="@+id/check_child"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_centerVertical="true"
            android:layout_marginLeft="25dp"
            android:gravity="center_vertical" />

        <com.facebook.drawee.view.SimpleDraweeView
            android:id="@+id/iv_expand_child_icon"
            android:layout_width="40dp"
            android:layout_height="40dp"
            android:layout_centerVertical="true"
            android:layout_marginLeft="5dp"
            android:layout_marginRight="5dp"
            android:gravity="center_vertical" />

        <TextView
            android:id="@+id/tv_expand_child_name"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:gravity="center_vertical"
            android:text="旗舰店"
            android:textColor="@android:color/black"
            android:textSize="18dp" />

        <TextView
            android:id="@+id/tv_done_edit"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:layout_marginLeft="15dp"
            android:gravity="center_vertical"
            android:text="x1　道符"
            android:textColor="@android:color/black"
            android:textSize="18dp" />

        <LinearLayout
            android:id="@+id/layout_is_edit"
            android:layout_width="wrap_content"
            android:layout_height="30dp"
            android:gravity="center_vertical"
            android:orientation="horizontal"
            android:visibility="gone">

            <Button
                android:id="@+id/btn_count_reduce"
                android:layout_width="30dp"
                android:layout_height="30dp"
                android:layout_marginLeft="8dp"
                android:background="#9F897E"
                android:text="—"
                android:textColor="@android:color/white" />


            <EditText
                android:id="@+id/content_fu_count"
                android:layout_width="30dp"
                android:layout_height="30dp"
                android:background="#E5DED8"
                android:digits="0123456789"
                android:gravity="center_vertical|center_horizontal"
                android:inputType="number"
                android:longClickable="false"
                android:maxLength="2"
                android:text="1" />

            <Button
                android:id="@+id/btn_count_add"
                android:layout_width="30dp"
                android:layout_height="30dp"
                android:layout_marginRight="8dp"
                android:background="#9F897E"
                android:text="+"
                android:textColor="@android:color/white" />

            <TextView
                android:id="@+id/tv_count_edit"
                android:layout_width="wrap_content"
                android:layout_height="30dp"
                android:layout_marginRight="8dp"
                android:gravity="center_vertical|center_horizontal"
                android:text="编辑"
                android:textColor="@android:color/black" />

            <TextView
                android:id="@+id/tv_count_del"
                android:layout_width="wrap_content"
                android:layout_height="30dp"
                android:background="@android:color/holo_red_light"
                android:gravity="center_vertical|center_horizontal"
                android:paddingLeft="5dp"
                android:paddingRight="5dp"
                android:text="删除"
                android:textColor="@android:color/black" />
        </LinearLayout>
    </LinearLayout>

    <TextView
        android:id="@+id/tv_child_note"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="10dp"
        android:text="备注"
        android:textColor="@android:color/black"
        android:textSize="18dp"
        android:visibility="gone" />

    <TextView
        android:id="@+id/tv_child_express"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="right"
        android:padding="10dp"
        android:text="快递费：20元"
        android:textColor="@android:color/black"
        android:textSize="18dp"
        android:visibility="gone" />
</LinearLayout>

店铺实例：

broupitembean

package com.fanyafeng.nested.ExpandListView;

import android.os.Parcel;
import android.os.Parcelable;

/**
 * Created by fanyafeng on 2016/2/23,0023.
 */
public class GroupItemBean implements Parcelable,Comparable{
    private boolean groupIsChecked;
    private String groupImage;
    private String groupName;
    private boolean groupIsCoupon;
    private boolean groupIsEdit;

    public GroupItemBean(boolean groupIsChecked, String groupImage, String groupName, boolean groupIsCoupon, boolean groupIsEdit) {
        this.groupIsChecked = groupIsChecked;
        this.groupImage = groupImage;
        this.groupName = groupName;
        this.groupIsCoupon = groupIsCoupon;
        this.groupIsEdit = groupIsEdit;
    }

    public boolean isGroupIsChecked() {
        return groupIsChecked;
    }

    public void setGroupIsChecked(boolean groupIsChecked) {
        this.groupIsChecked = groupIsChecked;
    }

    public String getGroupImage() {
        return groupImage;
    }

    public void setGroupImage(String groupImage) {
        this.groupImage = groupImage;
    }

    public String getGroupName() {
        return groupName;
    }

    public void setGroupName(String groupName) {
        this.groupName = groupName;
    }

    public boolean isGroupIsCoupon() {
        return groupIsCoupon;
    }

    public void setGroupIsCoupon(boolean groupIsCoupon) {
        this.groupIsCoupon = groupIsCoupon;
    }

    public boolean isGroupIsEdit() {
        return groupIsEdit;
    }

    public void setGroupIsEdit(boolean groupIsEdit) {
        this.groupIsEdit = groupIsEdit;
    }

    @Override
    public String toString() {
        return "GroupItemBean{" +
                "groupIsChecked=" + groupIsChecked +
                ", groupImage='" + groupImage + '\'' +
                ", groupName='" + groupName + '\'' +
                ", groupIsCoupon=" + groupIsCoupon +
                ", groupIsEdit=" + groupIsEdit +
                '}';
    }

    @Override
    public int compareTo(Object another) {
        return 0;
    }

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeByte((byte) (groupIsChecked ? 1 : 0));
        dest.writeString(groupImage);
        dest.writeString(groupName);
        dest.writeByte((byte) (groupIsCoupon ? 1 : 0));
        dest.writeByte((byte) (groupIsEdit ? 1 : 0));
    }

    protected GroupItemBean(Parcel in) {
        groupIsChecked = in.readByte() != 0;
        groupImage = in.readString();
        groupName = in.readString();
        groupIsCoupon = in.readByte() != 0;
        groupIsEdit = in.readByte() != 0;
    }

    public static final Creator<GroupItemBean> CREATOR = new Creator<GroupItemBean>() {
        @Override
        public GroupItemBean createFromParcel(Parcel in) {
            return new GroupItemBean(in);
        }

        @Override
        public GroupItemBean[] newArray(int size) {
            return new GroupItemBean[size];
        }
    };

}

店铺布局：

<?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="55dp"
    android:orientation="horizontal"
    android:padding="10dp">


    <CheckBox
        android:id="@+id/check_parent"
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:gravity="center_vertical" />

    <com.facebook.drawee.view.SimpleDraweeView
        android:id="@+id/iv_expand_icon"
        android:layout_width="30dp"
        android:layout_height="30dp"
        android:layout_marginLeft="5dp"
        android:layout_marginRight="5dp"
        android:layout_centerVertical="true"
        android:layout_toRightOf="@+id/check_parent"
        android:background="@mipmap/ic_launcher"
        android:gravity="center_vertical" />

    <TextView
        android:id="@+id/tv_expand_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_toRightOf="@+id/iv_expand_icon"
        android:gravity="center_vertical"
        android:text="某某某旗舰店"
        android:textColor="@android:color/black"
        android:textSize="18dp" />

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="match_parent"
        android:layout_alignParentRight="true"
        android:gravity="center_vertical"
        android:layout_centerVertical="true"
        android:orientation="horizontal">

        <TextView
            android:id="@+id/tv_expand_get"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_toRightOf="@+id/tv_expand_name"
            android:gravity="center_vertical"
            android:text="领券"
            android:layout_centerVertical="true"
            android:textColor="@android:color/black" />

        <TextView
            android:id="@+id/tv_upright_line"
            android:layout_width="1px"
            android:layout_height="match_parent"
            android:layout_marginLeft="5dp"
            android:layout_marginRight="5dp"
            android:layout_toRightOf="@+id/tv_expand_get"
            android:background="@android:color/black" />

        <TextView
            android:id="@+id/tv_expand_edit"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_toRightOf="@+id/tv_upright_line"
            android:gravity="center_vertical"
            android:text="编辑"
            android:layout_centerVertical="true"
            android:textColor="@android:color/black" />
    </LinearLayout>
</RelativeLayout>

一对多实例：

expandbean

package com.fanyafeng.nested.ExpandListView;

import android.os.Parcel;
import android.os.Parcelable;

import java.util.List;

/**
 * Created by fanyafeng on 2016/2/22,0022.
 */
public class ExpandBean implements Comparable,Parcelable{
    private GroupItemBean Group;
    private List<ChildItemBean> Child;

    public ExpandBean(GroupItemBean group, List<ChildItemBean> child) {
        Group = group;
        Child = child;
    }

    public GroupItemBean getGroup() {
        return Group;
    }

    public void setGroup(GroupItemBean group) {
        Group = group;
    }

    public List<ChildItemBean> getChild() {
        return Child;
    }

    public void setChild(List<ChildItemBean> child) {
        Child = child;
    }

    @Override
    public String toString() {
        return "ExpandBean{" +
                "Group=" + Group +
                ", Child=" + Child +
                '}';
    }

    @Override
    public int compareTo(Object another) {
        return 0;
    }

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {
        dest.writeParcelable(Group, flags);
        dest.writeTypedList(Child);
    }

    protected ExpandBean(Parcel in) {
        Group = in.readParcelable(GroupItemBean.class.getClassLoader());
        Child = in.createTypedArrayList(ChildItemBean.CREATOR);
    }

    public static final Creator<ExpandBean> CREATOR = new Creator<ExpandBean>() {
        @Override
        public ExpandBean createFromParcel(Parcel in) {
            return new ExpandBean(in);
        }

        @Override
        public ExpandBean[] newArray(int size) {
            return new ExpandBean[size];
        }
    };
}

地址布局：

<?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:orientation="vertical">

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:padding="10dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:gravity="center_vertical"
            android:text="收货信息"
            android:textColor="@android:color/black"
            android:textSize="16dp" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_alignParentEnd="true"
            android:layout_alignParentRight="true"
            android:layout_alignParentTop="true"
            android:gravity="center_vertical"
            android:text="编辑"
            android:textColor="@android:color/black"
            android:textSize="16dp" />
    </RelativeLayout>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:padding="10dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:gravity="center_vertical"
            android:text="收货人"
            android:textColor="@android:color/black"
            android:textSize="16dp" />

        <TextView
            android:id="@+id/tv_message_name"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_alignParentEnd="true"
            android:layout_alignParentRight="true"
            android:layout_alignParentTop="true"
            android:gravity="center_vertical"
            android:text="姓名"
            android:textColor="@android:color/black"
            android:textSize="16dp" />
    </RelativeLayout>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:padding="10dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:gravity="center_vertical"
            android:text="手机"
            android:textColor="@android:color/black"
            android:textSize="16dp" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_alignParentEnd="true"
            android:layout_alignParentRight="true"
            android:layout_alignParentTop="true"
            android:gravity="center_vertical"
            android:text="1380000000"
            android:textColor="@android:color/black"
            android:textSize="16dp" />
    </RelativeLayout>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:padding="10dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:gravity="center_vertical"
            android:text="收货地址"
            android:textColor="@android:color/black"
            android:textSize="16dp" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_alignParentEnd="true"
            android:layout_alignParentRight="true"
            android:layout_alignParentTop="true"
            android:gravity="center_vertical"
            android:text="北京市东城区"
            android:textColor="@android:color/black"
            android:textSize="16dp" />
    </RelativeLayout>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:padding="10dp">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:gravity="center_vertical"
            android:text="备注"
            android:textColor="@android:color/black"
            android:textSize="16dp" />

        <TextView
            android:id="@+id/tv_message_note"
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_alignParentEnd="true"
            android:layout_alignParentRight="true"
            android:layout_alignParentTop="true"
            android:gravity="center_vertical"
            android:text="看看效果"
            android:textColor="@android:color/black"
            android:textSize="16dp" />
    </RelativeLayout>

</LinearLayout>

好，准备工作基本已经做完了，开始编写逻辑代码：

我的主要逻辑放在了adapter中了，而且把adapter从activity中进行抽离了，不过最后的业务处理应该放在activity中进行

expandadapter

package com.fanyafeng.nested.ExpandListView;

import android.content.Context;
import android.graphics.Color;
import android.net.Uri;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.facebook.drawee.view.SimpleDraweeView;
import com.fanyafeng.nested.ChangeData.ChangeDataBean;
import com.fanyafeng.nested.ChangeData.ChangeDataDialog;
import com.fanyafeng.nested.R;

import java.util.ArrayList;
import java.util.List;

/**
 * Created by fanyafeng on 2016/2/22,0022.
 */
public class ExpandAdapter extends BaseExpandableListAdapter {
    private Context context;
    private List<ExpandBean> expandBeanList;

    private GroupHolder groupHolder;
    private ChildHolder childHolder;

    private AdapterCallback adapterCallback;

    public interface AdapterCallback {
        public void callBack(boolean allSelected, List<ExpandBean> expandBeanCallList);
    }

    public void setCallback(AdapterCallback adapterCallback) {
        this.adapterCallback = adapterCallback;
    }

    public void isAllSelect(boolean isAllSelected) {
        int groupSize;
        if (expandBeanList != null) {
            groupSize = expandBeanList.size();
        } else {
            return;
        }
        for (int i = 0; i < groupSize; i++) {
            expandBeanList.get(i).getGroup().setGroupIsChecked(isAllSelected);
            int childSize = expandBeanList.get(i).getChild().size();
            for (int j = 0; j < childSize; j++) {
                expandBeanList.get(i).getChild().get(j).setChildIsChecked(isAllSelected);
            }
        }
        notifyDataSetChanged();
    }


    public ExpandAdapter(Context context, List<ExpandBean> expandBeanList) {
        this.context = context;
        this.expandBeanList = expandBeanList;
    }

    @Override
    public int getGroupCount() {
        return expandBeanList.size();
    }

    @Override
    public int getChildrenCount(int groupPosition) {
        return expandBeanList.get(groupPosition).getChild().size();
    }

    @Override
    public Object getGroup(int groupPosition) {
        return expandBeanList.get(groupPosition).getGroup();
    }

    @Override
    public Object getChild(int groupPosition, int childPosition) {
        return expandBeanList.get(groupPosition).getChild().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 true;
    }

    class GroupHolder {
        CheckBox check_parent;
        SimpleDraweeView iv_expand_icon;
        TextView tv_expand_name;
        TextView tv_expand_edit;
        TextView tv_expand_get;
    }

    @Override
    public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
        if (convertView == null) {
            convertView = LayoutInflater.from(context).inflate(R.layout.layout_parent_expand, null);
            groupHolder = new GroupHolder();
            groupHolder.check_parent = (CheckBox) convertView.findViewById(R.id.check_parent);
            groupHolder.iv_expand_icon = (SimpleDraweeView) convertView.findViewById(R.id.iv_expand_icon);
            groupHolder.tv_expand_name = (TextView) convertView.findViewById(R.id.tv_expand_name);
            groupHolder.tv_expand_get = (TextView) convertView.findViewById(R.id.tv_expand_get);
            groupHolder.tv_expand_edit = (TextView) convertView.findViewById(R.id.tv_expand_edit);
            convertView.setTag(groupHolder);
        } else {
            groupHolder = (GroupHolder) convertView.getTag();
        }
//        checkbox状态
        groupHolder.check_parent.setOnClickListener(new GroupClick(groupPosition));
//        是否处于选中状态
        if (expandBeanList.get(groupPosition).getGroup().isGroupIsChecked()) {
            groupHolder.check_parent.setChecked(true);
        } else {
            groupHolder.check_parent.setChecked(false);
        }
//        是否有优惠券
        if (expandBeanList.get(groupPosition).getGroup().isGroupIsCoupon()) {
            groupHolder.tv_expand_get.setVisibility(View.VISIBLE);
        } else {
            groupHolder.tv_expand_get.setVisibility(View.GONE);
        }
        groupHolder.iv_expand_icon.setImageURI(Uri.parse(expandBeanList.get(groupPosition).getGroup().getGroupImage()));
        groupHolder.tv_expand_name.setText(expandBeanList.get(groupPosition).getGroup().getGroupName());
        if (expandBeanList.get(groupPosition).getGroup().isGroupIsEdit()) {
            groupHolder.tv_expand_edit.setText("完成");
        } else {
            groupHolder.tv_expand_edit.setText("编辑");
        }
        groupHolder.tv_expand_edit.setOnClickListener(new GroupViewClick(groupPosition));
        return convertView;
    }

    class GroupClick implements View.OnClickListener {
        private int groupPosition;

        public GroupClick(int groupPosition) {
            this.groupPosition = groupPosition;
        }

        @Override
        public void onClick(View v) {
            int groupSize = expandBeanList.size();
            int childCount = expandBeanList.get(groupPosition).getChild().size();
            if (!expandBeanList.get(groupPosition).getGroup().isGroupIsChecked()) {
                expandBeanList.get(groupPosition).getGroup().setGroupIsChecked(true);
                for (int i = 0; i < childCount; i++) {
                    expandBeanList.get(groupPosition).getChild().get(i).setChildIsChecked(true);
                }

                boolean isAllChecked = true;
                for (int i = 0; i < groupSize; i++) {
                    if (!expandBeanList.get(i).getGroup().isGroupIsChecked()) {
                        isAllChecked = false;
                        break;
                    }
                }
                adapterCallback.callBack(isAllChecked, expandBeanList);

            } else {
                expandBeanList.get(groupPosition).getGroup().setGroupIsChecked(false);
                for (int i = 0; i < childCount; i++) {
                    expandBeanList.get(groupPosition).getChild().get(i).setChildIsChecked(false);
                }
                adapterCallback.callBack(false, expandBeanList);
            }
            notifyDataSetChanged();
        }
    }


    /**
     * 使某个组处于编辑状态
     * <p>
     * groupPosition组的位置
     */
    class GroupViewClick implements View.OnClickListener {
        private int groupPosition;

        public GroupViewClick(int groupPosition) {
            this.groupPosition = groupPosition;
        }

        @Override
        public void onClick(View v) {
            int groupId = v.getId();
            boolean isAllChecked = true;
            if (groupId == groupHolder.tv_expand_edit.getId()) {
                if (expandBeanList.get(groupPosition).getGroup().isGroupIsEdit()) {
                    expandBeanList.get(groupPosition).getGroup().setGroupIsEdit(false);
                } else {
                    expandBeanList.get(groupPosition).getGroup().setGroupIsEdit(true);

                }
                int groupSize = expandBeanList.size();
                for (int i = 0; i < groupSize; i++) {
                    if (!expandBeanList.get(i).getGroup().isGroupIsChecked()) {
                        isAllChecked = false;
                        break;
                    }
                }
                adapterCallback.callBack(isAllChecked, expandBeanList);
                notifyDataSetChanged();
            }
        }
    }

    class ChildHolder {
        CheckBox check_child;
        TextView tv_expand_child_name;
        TextView tv_done_edit;
        SimpleDraweeView iv_expand_child_icon;
        LinearLayout layout_is_edit;
        Button btn_count_reduce;
        EditText content_fu_count;
        Button btn_count_add;
        TextView tv_count_edit;
        TextView tv_count_del;
        TextView tv_child_note;
        TextView tv_child_express;
    }

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

        LinearLayout linearLayout = new LinearLayout(context);
        if (convertView == null) {
            convertView = LayoutInflater.from(context).inflate(R.layout.layout_child_expand, null);
            childHolder = new ChildHolder();
            childHolder.check_child = (CheckBox) convertView.findViewById(R.id.check_child);
            childHolder.tv_expand_child_name = (TextView) convertView.findViewById(R.id.tv_expand_child_name);
            childHolder.tv_done_edit = (TextView) convertView.findViewById(R.id.tv_done_edit);
            childHolder.iv_expand_child_icon = (SimpleDraweeView) convertView.findViewById(R.id.iv_expand_child_icon);
            childHolder.layout_is_edit = (LinearLayout) convertView.findViewById(R.id.layout_is_edit);
            childHolder.btn_count_reduce = (Button) convertView.findViewById(R.id.btn_count_reduce);
            childHolder.content_fu_count = (EditText) convertView.findViewById(R.id.content_fu_count);
            childHolder.btn_count_add = (Button) convertView.findViewById(R.id.btn_count_add);
            childHolder.tv_count_edit = (TextView) convertView.findViewById(R.id.tv_count_edit);
            childHolder.tv_count_del = (TextView) convertView.findViewById(R.id.tv_count_del);
            childHolder.tv_child_note = (TextView) convertView.findViewById(R.id.tv_child_note);
            childHolder.tv_child_express = (TextView) convertView.findViewById(R.id.tv_child_express);
            convertView.setTag(childHolder);
        } else {
            childHolder = (ChildHolder) convertView.getTag();
        }

        if (expandBeanList.get(groupPosition).getChild().get(childPosition).isChildIsChecked()) {
            childHolder.check_child.setChecked(true);
        } else {
            childHolder.check_child.setChecked(false);
        }

        childHolder.check_child.setOnClickListener(new ChildClick(groupPosition, childPosition));
        if (expandBeanList.get(groupPosition).getGroup().isGroupIsEdit()) {
            childHolder.tv_done_edit.setVisibility(View.GONE);
            childHolder.layout_is_edit.setVisibility(View.VISIBLE);
        } else {
            childHolder.tv_done_edit.setVisibility(View.VISIBLE);
            childHolder.layout_is_edit.setVisibility(View.GONE);
        }
        childHolder.tv_expand_child_name.setText(expandBeanList.get(groupPosition).getChild().get(childPosition).getName());
        childHolder.tv_done_edit.setText("X" + expandBeanList.get(groupPosition).getChild().get(childPosition).getCount() + "　个");
        childHolder.content_fu_count.setText(String.valueOf(expandBeanList.get(groupPosition).getChild().get(childPosition).getCount()));
        childHolder.iv_expand_child_icon.setImageURI(Uri.parse(expandBeanList.get(groupPosition).getChild().get(childPosition).getChildImage()));
        childHolder.btn_count_add.setOnClickListener(new ChildViewClick(groupPosition, childPosition));
        childHolder.btn_count_reduce.setOnClickListener(new ChildViewClick(groupPosition, childPosition));
        childHolder.tv_count_del.setOnClickListener(new DelChildViewClick(groupPosition, childPosition));
        childHolder.tv_count_edit.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                ChangeDataBean changeDataBean = new ChangeDataBean(123, "password");
                ChangeDataDialog changeDataDialog = new ChangeDataDialog(context, R.style.mystyle, R.layout.layout_dialog_input, changeDataBean, new ChangeDataDialog.InputListener() {
                    @Override
                    public void getNameAndPassword(String number, String password) {
                        Toast.makeText(context, number + password, Toast.LENGTH_SHORT).show();
                    }
                });
                changeDataDialog.getWindow().setGravity(Gravity.BOTTOM);
                changeDataDialog.show();
            }
        });
        if (expandBeanList.get(groupPosition).getChild().size() == childPosition + 1) {
            childHolder.tv_child_note.setVisibility(View.VISIBLE);
            childHolder.tv_child_express.setVisibility(View.VISIBLE);
            int groupsize = expandBeanList.get(groupPosition).getChild().size();
            int count = 0;
            for (int i = 0; i < groupsize; i++) {
                if (expandBeanList.get(groupPosition).getChild().get(i).isChildIsChecked()) {
                    count += expandBeanList.get(groupPosition).getChild().get(i).getCount();
                }
            }
            childHolder.tv_child_note.setText("数量：" + count + "个");
            childHolder.tv_child_express.setText("快递费用：20元");
        } else {
            childHolder.tv_child_note.setVisibility(View.GONE);
            childHolder.tv_child_express.setVisibility(View.GONE);
        }

        return convertView;
    }

    class ChildClick implements View.OnClickListener {
        private int groupPosition;
        private int childPosition;

        public ChildClick(int groupPosition, int childPosition) {
            this.groupPosition = groupPosition;
            this.childPosition = childPosition;
        }


        @Override
        public void onClick(View v) {
            int groupSize = expandBeanList.size();
            int childCount = expandBeanList.get(groupPosition).getChild().size();
            boolean isAllSelect = true;
            if (!expandBeanList.get(groupPosition).getChild().get(childPosition).isChildIsChecked()) {
                expandBeanList.get(groupPosition).getChild().get(childPosition).setChildIsChecked(true);
                for (int i = 0; i < childCount; i++) {
                    if (!expandBeanList.get(groupPosition).getChild().get(i).isChildIsChecked()) {
                        isAllSelect = false;
                        break;
                    }
                }
                if (isAllSelect) {
                    expandBeanList.get(groupPosition).getGroup().setGroupIsChecked(true);
                } else {
                    expandBeanList.get(groupPosition).getGroup().setGroupIsChecked(false);
                }

                boolean isAllChecked = true;
                for (int i = 0; i < groupSize; i++) {
                    if (!expandBeanList.get(i).getGroup().isGroupIsChecked()) {
                        isAllChecked = false;
                        break;
                    }
                }
                adapterCallback.callBack(isAllChecked, expandBeanList);

            } else {
                expandBeanList.get(groupPosition).getChild().get(childPosition).setChildIsChecked(false);
                expandBeanList.get(groupPosition).getGroup().setGroupIsChecked(false);
                adapterCallback.callBack(false, expandBeanList);
            }
            notifyDataSetChanged();
        }
    }


    /**
     * 删除childview
     * <p>
     * groupPosition  组的位置
     * childPosition  子的位置
     */
    class DelChildViewClick implements View.OnClickListener {
        private int groupPosition;
        private int childPosition;

        public DelChildViewClick(int groupPosition, int childPosition) {
            this.groupPosition = groupPosition;
            this.childPosition = childPosition;
        }

        @Override
        public void onClick(View v) {
            expandBeanList.get(groupPosition).getChild().remove(childPosition);
            if (expandBeanList.get(groupPosition).getChild().size() <= 0) {
                expandBeanList.remove(groupPosition);
                expandBeanList.get(groupPosition).getGroup().setGroupIsEdit(false);
            }
            notifyDataSetChanged();
        }
    }

    /**
     * 增加，减少数据操作
     * <p>
     * groupPosition  组的位置
     * childPosition  子的位置
     */
    class ChildViewClick implements View.OnClickListener {
        private int groupPosition;
        private int childPosition;

        public ChildViewClick(int groupPosition, int childPosition) {
            this.groupPosition = groupPosition;
            this.childPosition = childPosition;
        }

        @Override
        public void onClick(View v) {
            int mycount = expandBeanList.get(groupPosition).getChild().get(childPosition).getCount();
            int groupSize = expandBeanList.size();
            if (v.getId() == childHolder.btn_count_add.getId()) {
                if (mycount < 99) {
                    expandBeanList.get(groupPosition).getChild().get(childPosition).setCount(++mycount);
                } else {
                    Toast.makeText(context, "已经超出最大数量", Toast.LENGTH_SHORT).show();
                }
            } else if (v.getId() == childHolder.btn_count_reduce.getId()) {
                if (mycount > 1) {
                    expandBeanList.get(groupPosition).getChild().get(childPosition).setCount(--mycount);
                } else {
                    Toast.makeText(context, "符的个数不能小于1", Toast.LENGTH_SHORT).show();
                }
            }
            boolean isAllChecked = true;
            for (int i = 0; i < groupSize; i++) {
                if (!expandBeanList.get(i).getGroup().isGroupIsChecked()) {
                    isAllChecked = false;
                    break;
                }
            }
            adapterCallback.callBack(isAllChecked, expandBeanList);
            notifyDataSetChanged();
        }
    }


    @Override
    public boolean isChildSelectable(int groupPosition, int childPosition) {
        return true;
    }
}

expandlistviewactivity

package com.fanyafeng.nested.ExpandListView;

import android.app.ExpandableListActivity;
import android.content.Intent;
import android.graphics.Color;
import android.media.Image;
import android.net.Uri;
import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutCompat;
import android.support.v7.widget.Toolbar;
import android.text.Layout;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.BaseExpandableListAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.ExpandableListAdapter;
import android.widget.ExpandableListView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.facebook.drawee.view.SimpleDraweeView;
import com.fanyafeng.nested.BaseActivity;
import com.fanyafeng.nested.ChangeData.ChangeDataBean;
import com.fanyafeng.nested.ChangeData.ChangeDataDialog;
import com.fanyafeng.nested.R;

import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class ExpandListViewActivity extends BaseActivity {
    private ExpandableListView expand_listview;
    private String imageUri = "http://www.apkbus.com/data/attachment/forum/201402/27/154958qgczo5a17ia3u3c4.png";
    private List<ExpandBean> expandBeanList = new ArrayList<>();
    private ExpandAdapter expandAdapter;

    private TextView tv_expand_price;
    private TextView tv_expand_commit;
    private CheckBox cb_expand_all;

    private boolean isAdapterAllChecked = false;
    private List<ExpandBean> myExpandBeanList;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_expand_list_view);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Snackbar.make(view, "Replace with your own action", Snackbar.LENGTH_LONG)
                        .setAction("Action", null).show();
            }
        });
        initView();
        initData();
    }

    private void initView() {
        cb_expand_all = (CheckBox) findViewById(R.id.cb_expand_all);
        cb_expand_all.setOnClickListener(this);
        tv_expand_price = (TextView) findViewById(R.id.tv_expand_price);
        tv_expand_commit = (TextView) findViewById(R.id.tv_expand_commit);
        tv_expand_commit.setOnClickListener(this);
        expand_listview = (ExpandableListView) findViewById(R.id.expand_listview);
        expand_listview.setGroupIndicator(null);

        List<ChildItemBean> weiChildItemBeanList = new ArrayList<>();
        for (int i = 1; i <= 4; i++) {
            ChildItemBean childItemBean = new ChildItemBean(false, imageUri, "夏侯" + i, i);
            weiChildItemBeanList.add(childItemBean);
        }

        List<ChildItemBean> shuChildItemBeanList = new ArrayList<>();
        for (int i = 1; i <= 3; i++) {
            ChildItemBean childItemBean = new ChildItemBean(false, imageUri, "赵云" + i, i);
            shuChildItemBeanList.add(childItemBean);
        }

        List<ChildItemBean> wuChildItemBeanList = new ArrayList<>();
        for (int i = 1; i <= 6; i++) {
            ChildItemBean childItemBean = new ChildItemBean(false, imageUri, "周瑜" + i, i);
            wuChildItemBeanList.add(childItemBean);
        }

        List<ChildItemBean> qunChildItemBeanList = new ArrayList<>();
        for (int i = 1; i <= 5; i++) {
            ChildItemBean childItemBean = new ChildItemBean(false, imageUri, "华佗" + i, i);
            qunChildItemBeanList.add(childItemBean);
        }

        GroupItemBean groupItemBean0 = new GroupItemBean(false, imageUri, "魏国", false, false);
        ExpandBean expandBean0 = new ExpandBean(groupItemBean0, weiChildItemBeanList);
        expandBeanList.add(0, expandBean0);
        GroupItemBean groupItemBean1 = new GroupItemBean(false, imageUri, "蜀国", true, false);
        ExpandBean expandBean1 = new ExpandBean(groupItemBean1, shuChildItemBeanList);
        expandBeanList.add(1, expandBean1);
        GroupItemBean groupItemBean2 = new GroupItemBean(false, imageUri, "吴国", false, false);
        ExpandBean expandBean2 = new ExpandBean(groupItemBean2, wuChildItemBeanList);
        expandBeanList.add(2, expandBean2);
        GroupItemBean groupItemBean3 = new GroupItemBean(false, imageUri, "群国", true, false);
        ExpandBean expandBean3 = new ExpandBean(groupItemBean3, qunChildItemBeanList);
        expandBeanList.add(3, expandBean3);

    }

    private void initData() {
//同listview，可以添加头和脚
        View view = LayoutInflater.from(this).inflate(R.layout.layout_address_message, null);
        TextView tv_message_name = (TextView) view.findViewById(R.id.tv_message_name);
        tv_message_name.setText("樊亚风");
        TextView tv_message_note = (TextView) view.findViewById(R.id.tv_message_note);
        tv_message_note.setText("动态更新备注信息");

        expand_listview.addHeaderView(view);
//        expand_listview.addHeaderView(LayoutInflater.from(this).inflate(R.layout.layout_dialog_input, null));
        expand_listview.addFooterView(LayoutInflater.from(this).inflate(R.layout.layout_address_message, null));
        expand_listview.addFooterView(LayoutInflater.from(this).inflate(R.layout.layout_dialog_input, null));
        expandAdapter = new ExpandAdapter(this, expandBeanList);
        myExpandBeanList = expandBeanList;
        expand_listview.setAdapter(expandAdapter);
        expandAdapter.setCallback(new ExpandAdapter.AdapterCallback() {
            @Override
            public void callBack(boolean allSelected, List<ExpandBean> expandBeanCallList) {
                myExpandBeanList = expandBeanCallList;
                int count = 0;
                int groupSize = expandBeanCallList.size();
                for (int i = 0; i < groupSize; i++) {
                    int childSize = expandBeanCallList.get(i).getChild().size();
                    for (int j = 0; j < childSize; j++) {
                        if (expandBeanCallList.get(i).getChild().get(j).isChildIsChecked()) {
                            count += expandBeanCallList.get(i).getChild().get(j).getCount();
                        }
                    }
                }
                tv_expand_price.setText(count + "个");
                isAdapterAllChecked = allSelected;
                cb_expand_all.setChecked(allSelected);

            }
        });
//        expand_listview.setAdapter(expandableListAdapter);
//        将子项全部展开
        for (int i = 0; i < expandBeanList.size(); i++) {
            expand_listview.expandGroup(i);
        }
//        这是parent不能点击
        expand_listview.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {
            @Override
            public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) {
                return true;
            }
        });
        tv_message_note.setText("再次动态更新备注信息");
    }

    @Override
    public void onClick(View v) {
        super.onClick(v);
        switch (v.getId()) {
            case R.id.tv_expand_commit:
//                tv_expand_price.setText("确认点击");
                break;
            case R.id.cb_expand_all:
                isAdapterAllChecked = !isAdapterAllChecked;
                expandAdapter.isAllSelect(isAdapterAllChecked);
                int count = 0;
                int groupSize = myExpandBeanList.size();
                for (int i = 0; i < groupSize; i++) {
                    int childSize = myExpandBeanList.get(i).getChild().size();
                    for (int j = 0; j < childSize; j++) {
                        if (myExpandBeanList.get(i).getChild().get(j).isChildIsChecked()) {
                            count += myExpandBeanList.get(i).getChild().get(j).getCount();
                        }
                    }
                }
                tv_expand_price.setText(count + "个");
                break;
        }
    }

    final ExpandableListAdapter expandableListAdapter = new BaseExpandableListAdapter() {


        private String[] generalsTypes = new String[]{"魏国", "蜀国", "吴国"};
        private String[][] generals = new String[][]{
                {"夏侯淳", "甄姬", "许褚", "郭嘉", "司马", "杨修"},
                {"马超", "张飞", "刘备", "诸葛亮", "黄月英", "赵云", "马谡"},
                {"吕蒙", "陆逊", "孙权", "周瑜", "孙尚香"}
        };
        private String[][] images = new String[][]{
                {"夏侯淳", "甄姬", "许褚", "郭嘉", "司马", "杨修"},
                {"马超", "张飞", "刘备", "诸葛亮", "黄月英", "赵云", "马谡"},
                {"吕蒙", "陆逊", "孙权", "周瑜", "孙尚香"}
        };

        //group个数
        @Override
        public int getGroupCount() {
            return generalsTypes.length;
        }

        //        相应的group下的child个数
        @Override
        public int getChildrenCount(int groupPosition) {
            return generals[groupPosition].length;
        }

        //得到对应的group数据
        @Override
        public Object getGroup(int groupPosition) {
            return generalsTypes[groupPosition];
        }

        //得到相应group下child的数据
        @Override
        public Object getChild(int groupPosition, int childPosition) {
            return generals[groupPosition][childPosition];
        }

        @Override
        public long getGroupId(int groupPosition) {
            return groupPosition;
        }

        @Override
        public long getChildId(int groupPosition, int childPosition) {
            return childPosition;
        }

        @Override
        public boolean hasStableIds() {
            return true;
        }

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

            View view = LayoutInflater.from(ExpandListViewActivity.this).inflate(R.layout.layout_parent_expand, null);
            TextView tv_expand_name = (TextView) view.findViewById(R.id.tv_expand_name);
            tv_expand_name.setText(getGroup(groupPosition).toString());
            TextView tv_expand_edit = (TextView) view.findViewById(R.id.tv_expand_edit);
            tv_expand_edit.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Toast.makeText(ExpandListViewActivity.this, "编辑被点击,第几组：" + groupPosition, Toast.LENGTH_SHORT).show();

                }
            });
            return view;
        }

        @Override
        public View getChildView(final int groupPosition, final int childPosition, boolean isLastChild, View convertView, ViewGroup parent) {
            LinearLayout linearLayout = new LinearLayout(ExpandListViewActivity.this);
            LinearLayout.LayoutParams params = new LinearLayout.LayoutParams(LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT);
            View view = LayoutInflater.from(ExpandListViewActivity.this).inflate(R.layout.layout_child_expand, null);
            TextView tv_expand_child_name = (TextView) view.findViewById(R.id.tv_expand_child_name);
            tv_expand_child_name.setText(getChild(groupPosition, childPosition).toString());
            tv_expand_child_name.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    Toast.makeText(ExpandListViewActivity.this, "Parent和Child分别为：" + groupPosition + " , " + childPosition, Toast.LENGTH_SHORT).show();
                }
            });
            TextView line = new TextView(ExpandListViewActivity.this);
            SimpleDraweeView iv_expand_child_icon = (SimpleDraweeView) view.findViewById(R.id.iv_expand_child_icon);
            iv_expand_child_icon.setImageURI(Uri.parse(imageUri));
            TextView tv_is_edit = (TextView) view.findViewById(R.id.tv_done_edit);

            linearLayout.addView(view, params);
            line.setTextColor(Color.BLACK);
            line.setHeight(1);
            if (!isLastChild) {
                linearLayout.addView(line);
            }
            return linearLayout;
        }

        @Override
        public boolean isChildSelectable(int groupPosition, int childPosition) {
            return true;
        }
    };


}

activity布局，现在用as自建貌似都是默认两个，一个activity_xxxx，另一个content_xxxx

activity

<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    tools:context="com.fanyafeng.nested.ExpandListView.ExpandListViewActivity">

    <android.support.design.widget.AppBarLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:theme="@style/AppTheme.AppBarOverlay">

        <android.support.v7.widget.Toolbar
            android:id="@+id/toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="?attr/colorPrimary"
            app:popupTheme="@style/AppTheme.PopupOverlay" />

    </android.support.design.widget.AppBarLayout>

    <include layout="@layout/content_expand_list_view" />

    <android.support.design.widget.FloatingActionButton
        android:id="@+id/fab"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="@dimen/fab_margin"
        android:src="@android:drawable/ic_dialog_email" />

</android.support.design.widget.CoordinatorLayout>

content

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    app:layout_behavior="@string/appbar_scrolling_view_behavior"
    tools:context="com.fanyafeng.nested.ExpandListView.ExpandListViewActivity"
    tools:showIn="@layout/activity_expand_list_view">

    <ExpandableListView
        android:id="@+id/expand_listview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginBottom="50dp"
        android:background="#ffffff"
        android:cacheColorHint="#00000000"
        android:divider="@null"
        android:listSelector="#00000000">

    </ExpandableListView>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="50dp"
        android:layout_alignParentBottom="true"
        android:orientation="horizontal">

        <CheckBox
            android:id="@+id/cb_expand_all"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:text="全选" />

        <TextView
            android:id="@+id/tv_expand_price"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:background="@android:color/white"
            android:gravity="center_horizontal|center_vertical"
            android:padding="10dp"
            android:text="个数"
            android:textSize="20dp" />

        <TextView
            android:id="@+id/tv_expand_commit"
            android:layout_width="0dp"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:background="@android:color/holo_red_light"
            android:gravity="center_horizontal|center_vertical"
            android:padding="10dp"
            android:text="确认"
            android:textSize="20dp" />
    </LinearLayout>

</RelativeLayout>

还有就是里面用了一个fresco，就是想知道大约这个jar包多大，放在项目里是否合适，貌似三四兆，有点大，感觉一般的用image_loader就可以了，除非有些处理不了的，比如你的项目里需要gif一类，或者需要高效处理图片，我这里的config是从官方demo里面抽出来的，大家可以去看一下官网的demo，文末放github地址，还有一个baseactivity

package com.fanyafeng.nested;

import android.os.Bundle;
import android.support.design.widget.FloatingActionButton;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;

import com.facebook.drawee.backends.pipeline.Fresco;
import com.fanyafeng.nested.config.FrescoConfig;

public class BaseActivity extends AppCompatActivity implements View.OnClickListener{

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Fresco.initialize(this, FrescoConfig.getsImagePipelineConfig(this));
    }


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    public void onClick(View v) {

    }
}

这里是fresco的地址 点击打开fresco github地址

我把写的这个demo也传到git上了，大家可以fork到自己的github下，或者直接check下来也可以

点击打开以上demo链接

屏幕录制的路径https://github.com/1181631922/Nested/blob/master/16-2-25-%E4%B8%8A%E5%8D%8811-43.mp4

写给自己：

我们以往的思维方式在很大程度上决定了我们每一次的选择，所以我们的选择并不是偶然的或随机的。我们只能在我们思想范围以内做出选择，而不会做出超出思想范围以外的任何行为。正是所谓的思路决定了出路，想法决定了方法。