android 三級菜單 BaseExpandableListAdapter

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在網上搜了很長時間，沒有找到合適的Android三級菜單，所以就自己動手寫了一個，主要使用了BaseExpandableList來實現，通過三個布局檔案來完成對應的功能表項目，具體實現請參照。

     通過上面兩圖可以看出為三級菜單，每一個菜單對應一個實體類，可以通過json解析資料載入進來，這裡就不過多解釋了，直接上源碼！

Activity實作類別：

package com.zkq.activity;import java.util.ArrayList;import java.util.List;import com.example.teltest.R;import com.zkq.model.FirstItem;import com.zkq.model.SecondItem;import com.zkq.model.ThirdItem;import android.os.Bundle;import android.app.Activity;import android.view.Menu;import android.view.View;import android.widget.ExpandableListAdapter;import android.widget.ExpandableListView;import android.widget.ExpandableListView.OnChildClickListener;import android.widget.Toast;import com.zkq.adapter.*;public class MainActivity extends Activity {private ExpandableListView listView;private List<FirstItem> firstList;private ExpandableListAdapter eAdpater;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initView();initData();}private void initView() {// TODO Auto-generated method stublistView = (ExpandableListView) findViewById(R.id.expandList);firstList = new ArrayList<FirstItem>();}private void initData() {// TODO Auto-generated method stubfor (int i = 0; i < 10; i++) {FirstItem firstItem = new FirstItem();firstItem.setId(i);firstItem.setTitle("這是第" + i + "個");List<SecondItem> seList = new ArrayList<SecondItem>();for (int j = i; j < 10; j++) {SecondItem secondItem = new SecondItem();secondItem.setId(i);secondItem.setTitle("子的第" + j * 78 + "條");seList.add(secondItem);List<ThirdItem> thirdList = new ArrayList<ThirdItem>();for (int k = 0; k < j + 1; k++) {ThirdItem thirdItem = new ThirdItem();thirdItem.setId(k);thirdItem.setImage("sss");thirdItem.setName("張凱強" + k + j);thirdItem.setTel("10086" + j + k);thirdList.add(thirdItem);}secondItem.setThirdItems(thirdList);}firstItem.setSecondItems(seList);firstList.add(firstItem);}eAdpater = new ExpandAdapter(MainActivity.this, firstList,stvClickEvent);listView.setAdapter(eAdpater);listView.setOnChildClickListener(new OnChildClickListener() {@Overridepublic boolean onChildClick(ExpandableListView parent, View view,int groupPosition, int childPosition, long id) {// TODO Auto-generated method stubToast.makeText(MainActivity.this,childPosition + "---ccc===" + groupPosition,Toast.LENGTH_LONG).show();return false;}});}OnChildClickListener stvClickEvent = new OnChildClickListener() {@Overridepublic boolean onChildClick(ExpandableListView parent, View v,int groupPosition, int childPosition, long id) {// TODO Auto-generated method stubString msg = "parent_id = " + groupPosition + " child_id = "+ childPosition;Toast.makeText(MainActivity.this, msg,Toast.LENGTH_SHORT).show();return false;}};@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}}

兩個Adapter:

package com.zkq.adapter;import java.util.List;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.AbsListView;import android.widget.BaseExpandableListAdapter;import android.widget.ExpandableListAdapter;import android.widget.ExpandableListView;import android.widget.ImageView;import android.widget.TextView;import android.widget.ExpandableListView.OnChildClickListener;import android.widget.Toast;import com.example.teltest.R;import com.zkq.model.FirstItem;import com.zkq.model.SecondItem;import com.zkq.util.Constants;public class ExpandAdapter extends BaseExpandableListAdapter {private Context context;private List<FirstItem> firstList;private OnChildClickListener stvClickEvent;//外部回呼函數// private List<SecondItem> secondList;public ExpandAdapter(Context context, List<FirstItem> firstList,OnChildClickListener stvClickEvent) {// TODO Auto-generated constructor stubthis.context = context;this.firstList = firstList;this.stvClickEvent=stvClickEvent;// this.secondList = secondList;}@Overridepublic Object getChild(int groupPosition, int childPosition) {return firstList.get(groupPosition).getSecondItems();}@Overridepublic long getChildId(int groupPosition, int childPosition) {return childPosition;}@Overridepublic View getChildView(int groupPosition, int childPosition,boolean isLastChild, View convertView, ViewGroup parent) {// TODO Auto-generated method stubExpandableListView treeView = getExpandableListView(firstList.get(groupPosition).getSecondItems().size());ExpandAdapter2 expandAdapter2 = new ExpandAdapter2(context, firstList,childPosition, groupPosition,treeView,stvClickEvent);//treeView.setOnChildClickListener(stvClickEvent);treeView.setAdapter(expandAdapter2);return treeView;}public ExpandableListView getExpandableListView(int position) {  AbsListView.LayoutParams params = new AbsListView.LayoutParams(                  ViewGroup.LayoutParams.FILL_PARENT, Constants.SECOND_ITEM_HEIGHT*position);  ExpandableListView superTreeView = new ExpandableListView(context);superTreeView.setLayoutParams(params);return superTreeView;}@Overridepublic int getChildrenCount(int position) {// TODO Auto-generated method stubreturn 1;}@Overridepublic Object getGroup(int position) {// TODO Auto-generated method stubreturn firstList.get(position);}@Overridepublic int getGroupCount() {// TODO Auto-generated method stubreturn firstList.size();}@Overridepublic long getGroupId(int groupPosition) {// TODO Auto-generated method stubreturn groupPosition;}@Overridepublic View getGroupView(int position, boolean flag, View convertView,ViewGroup group) {// TODO Auto-generated method stubFirstHolder holder = null;if (convertView == null) {holder = new FirstHolder();convertView = LayoutInflater.from(context).inflate(R.layout.first_lay, null);holder.first_arrow = (ImageView) convertView.findViewById(R.id.first_arrow);holder.first_image = (ImageView) convertView.findViewById(R.id.first_image);holder.first_title = (TextView) convertView.findViewById(R.id.first_title);convertView.setTag(holder);} else {holder = (FirstHolder) convertView.getTag();}FirstItem firstItem = firstList.get(position);holder.first_title.setText(firstItem.getTitle());return convertView;}@Overridepublic boolean hasStableIds() {// TODO Auto-generated method stubreturn false;}@Overridepublic boolean isChildSelectable(int arg0, int arg1) {// TODO Auto-generated method stubreturn true;}}class FirstHolder {TextView first_title;ImageView first_image;ImageView first_arrow;}class SecondHolder {TextView second_title;ImageView second_arrow;}

package com.zkq.adapter;import java.util.List;import com.example.teltest.R;import com.zkq.activity.MainActivity;import com.zkq.model.FirstItem;import com.zkq.model.SecondItem;import com.zkq.model.ThirdItem;import com.zkq.util.Constants;import android.content.Context;import android.view.LayoutInflater;import android.view.View;import android.view.View.OnClickListener;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.BaseExpandableListAdapter;import android.widget.ExpandableListView;import android.widget.AbsListView;import android.widget.Toast;import android.widget.ExpandableListView.OnChildClickListener;import android.widget.ExpandableListView.OnGroupCollapseListener;import android.widget.ExpandableListView.OnGroupExpandListener;import android.widget.ImageView;import android.widget.TextView;public class ExpandAdapter2 extends BaseExpandableListAdapter {private Context context;private List<FirstItem> firstList;private int cpostion;private int gposition;private ExpandableListView treeView;private OnChildClickListener stvClickEvent;//外部回呼函數private int secondlength;// private List<SecondItem> secondList;public ExpandAdapter2(Context context, List<FirstItem> firstList,int cposition, int gposition, ExpandableListView treeView,OnChildClickListener stvClickEvent) {// TODO Auto-generated constructor stubthis.context = context;this.firstList = firstList;this.cpostion = cposition;this.gposition = gposition;this.treeView = treeView;this.stvClickEvent=stvClickEvent;// this.secondList = secondList;}@Overridepublic Object getChild(int groupPosition, int childPosition) {// TODO Auto-generated method stubreturn firstList.get(gposition).getSecondItems().get(groupPosition).getThirdItems().get(childPosition);}public long getChildId(int groupPosition, int childPosition) {return childPosition;}@Overridepublic View getChildView(int groupPosition, int childPosition,boolean isLastChild, View convertView, ViewGroup parent) {// TODO Auto-generated method stubThirdViewHolder childViewHolder = null;if (convertView == null) {childViewHolder = new ThirdViewHolder();convertView = LayoutInflater.from(context).inflate(R.layout.third_lay, null);childViewHolder.third_name = (TextView) convertView.findViewById(R.id.third_name);childViewHolder.third_image = (ImageView) convertView.findViewById(R.id.third_image);childViewHolder.third_tel = (TextView) convertView.findViewById(R.id.third_tel);convertView.setTag(childViewHolder);} else {childViewHolder = (ThirdViewHolder) convertView.getTag();}ThirdItem thirdItem = firstList.get(gposition).getSecondItems().get(groupPosition).getThirdItems().get(childPosition);childViewHolder.third_name.setText(thirdItem.getName());childViewHolder.third_tel.setText(thirdItem.getTel());//擷取選中的內容treeView.setOnChildClickListener(new OnChildClickListener() {@Overridepublic boolean onChildClick(ExpandableListView arg0, View arg1, int groupPosition,int childPosition, long arg4) {// TODO Auto-generated method stubString msg = "-ppp--"+gposition+"parent_id = " + groupPosition + " child_id = "+ childPosition;Toast.makeText(context, msg,Toast.LENGTH_SHORT).show();return false;}});return convertView;}@Overridepublic int getChildrenCount(int position) {// TODO Auto-generated method stubreturn firstList.get(gposition).getSecondItems().get(position).getThirdItems().size();}@Overridepublic Object getGroup(int groupPosition) {return firstList.get(gposition).getSecondItems().get(groupPosition);}@Overridepublic int getGroupCount() {// TODO Auto-generated method stubreturn firstList.get(gposition).getSecondItems().size();}@Overridepublic long getGroupId(int position) {// TODO Auto-generated method stubreturn position;}@Overridepublic View getGroupView(int position, boolean arg1, View convertView,ViewGroup arg3) {SecondHolder childViewHolder = null;if (convertView == null) {childViewHolder = new SecondHolder();convertView = LayoutInflater.from(context).inflate(R.layout.second_lay, null);childViewHolder.second_title = (TextView) convertView.findViewById(R.id.second_title);convertView.setTag(childViewHolder);} else {childViewHolder = (SecondHolder) convertView.getTag();}SecondItem secondItem = firstList.get(gposition).getSecondItems().get(position);childViewHolder.second_title.setText(secondItem.getTitle());/*** * 展開監聽 */treeView.setOnGroupExpandListener(new OnGroupExpandListener() {@Overridepublic void onGroupExpand(int position) {// TODO Auto-generated method stubif (treeView.getChildCount() == firstList.get(gposition).getSecondItems().size()) {if (secondlength > 0) {secondlength += firstList.get(gposition).getSecondItems().get(position).getThirdItems().size()* Constants.THIRD_ITEM_HEIGHT;} else {secondlength += firstList.get(gposition).getSecondItems().size()* Constants.SECOND_ITEM_HEIGHT+ firstList.get(gposition).getSecondItems().get(position).getThirdItems().size()* Constants.THIRD_ITEM_HEIGHT;}} else {secondlength += firstList.get(gposition).getSecondItems().get(position).getThirdItems().size()* Constants.THIRD_ITEM_HEIGHT;}AbsListView.LayoutParams lp = new AbsListView.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, secondlength);treeView.setLayoutParams(lp);}});// treeView.setOnGroupClickListener(new OnGroupClickListener() {// @Override// public boolean onGroupClick(ExpandableListView arg0, View arg1,// int position, long arg3) {// // TODO Auto-generated method stub// return false;// }// });/*** * 縮放監聽 */treeView.setOnGroupCollapseListener(new OnGroupCollapseListener() {@Overridepublic void onGroupCollapse(int position) {// TODO Auto-generated method stubsecondlength -= firstList.get(gposition).getSecondItems().get(position).getThirdItems().size()* Constants.THIRD_ITEM_HEIGHT;AbsListView.LayoutParams lp = new AbsListView.LayoutParams(ViewGroup.LayoutParams.FILL_PARENT, secondlength);treeView.setLayoutParams(lp);}});return convertView;}@Overridepublic boolean hasStableIds() {// TODO Auto-generated method stubreturn false;}@Overridepublic boolean isChildSelectable(int arg0, int arg1) {// TODO Auto-generated method stubreturn true;}class ThirdViewHolder {ImageView third_image;TextView third_name;TextView third_tel;}class SecondViewHolder {TextView second_title;ImageView second_arrow;}}

下面時三個實體類：

package com.zkq.model;import java.util.List;public class FirstItem {private int id;private String title;private String image;private List<SecondItem> secondItems;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getTitle() {return title;}public void setTitle(String title) {this.title = title;}public String getImage() {return image;}public void setImage(String image) {this.image = image;}public List<SecondItem> getSecondItems() {return secondItems;}public void setSecondItems(List<SecondItem> secondItems) {this.secondItems = secondItems;}}

package com.zkq.model;import java.util.List;public class SecondItem {private int id;private String title;private List<ThirdItem> thirdItems;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getTitle() {return title;}public void setTitle(String title) {this.title = title;}public List<ThirdItem> getThirdItems() {return thirdItems;}public void setThirdItems(List<ThirdItem> thirdItems) {this.thirdItems = thirdItems;}}

package com.zkq.model;public class ThirdItem {private int id;private String name;private String tel;private String image;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getTel() {return tel;}public void setTel(String tel) {this.tel = tel;}public String getImage() {return image;}public void setImage(String image) {this.image = image;}}

常量

package com.zkq.util;public class Constants {/** * 第二級和第三級菜單的高度 */public static final int SECOND_ITEM_HEIGHT=115;public static final int THIRD_ITEM_HEIGHT=120;}

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android 三級菜單 BaseExpandableListAdapter