之前学习了Pulltorefresh，pinnedheaderexpanablelistview 但是结合起来还是有点麻烦的。尤其是像QQ这种。他不是单纯的第一个当做分组。他是分组上面还有几个按钮，还有搜索框，同时可以滑动，而且还可以悬停。想了试了好几种方法，都有BUG。最后用的一种方法。 1. pulltorefresh用的android.v4里面自带的，好像知乎也是 2. 悬停和分组用的网上的，然后我把第一个分组的样式改成了自定义的menu菜单，并且清空了child.这样看上去就像一个自定义layout和listview一起滑动。 3. 下面是样式图
整个部分是可以滑动的。
下拉刷新之后 最上面会有一个彩色带。有点细。这是系统弄的效果
这是悬停效果，，之前的自定义菜单被滑动上去了。 下面是核心代码，非常简洁
package com.android.activity;import android.app.Activity;import android.os.Bundle;import android.os.Handler;import android.support.v4.widget.SwipeRefreshLayout;import android.support.v4.widget.SwipeRefreshLayout.OnRefreshListener;import android.view.View;import android.widget.AdapterView;import android.widget.ExpandableListAdapter;import android.widget.ExpandableListView;import android.widget.ExpandableListView.OnChildClickListener;import android.widget.ExpandableListView.OnGroupClickListener;import android.widget.Toast;import com.android.R;import com.android.pinnedheader.PinnedHeaderExpandableListView;{private PinnedHeaderExpandableListView explistview;private SwipeRefreshLayout swipeRefreshLayout;private String[][] childrenData = new String[10][10];private String[] groupData = new String[5];MainAdapter adapter;(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.layout_main);initView();initData();}/*** 初始化VIEW*/() {explistview = (PinnedHeaderExpandableListView)findViewById(R.id.explistview);swipeRefreshLayout = (SwipeRefreshLayout)findViewById(R.id.swipe_container);//设置刷新时动画的颜色，可以设置4个swipeRefreshLayout.setColorSchemeResources(android.R.color.holo_blue_light, android.R.color.holo_red_light, android.R.color.holo_orange_light, android.R.color.holo_green_light);swipeRefreshLayout.setOnRefreshListener(new OnRefreshListener() {() {new Handler().postDelayed(new Runnable() {() {swipeRefreshLayout.setRefreshing(false);}}, 6000);}});}/*** 初始化数据*/() {for(int i=0;i<5;i++){groupData[i] = ” group “+i;}for(int i=1;i<5;i++){for(int j=0;j<10;j++){childrenData[i][j] = “qq “+j;}}//设置悬浮头部VIEWexplistview.setHeaderView(View.inflate(MainActivity.this,R.layout.group,null));adapter = new MainAdapter(childrenData, groupData, getApplicationContext(),explistview);explistview.setAdapter(adapter);explistview.setOnChildClickListener(new OnChildClickListener() {(ExpandableListView parent, View v,int groupPosition, int childPosition, long id) {Toast.makeText(MainActivity.this, “分组:”+groupData[groupPosition]+”,好友:”+childrenData[groupPosition][childPosition], Toast.LENGTH_SHORT).show();return false;}});}}
你需要做的就是设置监听器和传数据，记住数据第一组不会显示的，而且child必须为0个。 菜单样式和分组样式在这里getview设置。
package com.android.activity;import com.android.R;import com.android.pinnedheader.PinnedHeaderExpandableListView;import android.content.Context;import android.opengl.Visibility;import android.util.SparseIntArray;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseExpandableListAdapter;import android.widget.ImageView;import android.widget.TextView;import android.widget.AbsListView.LayoutParams;import android.widget.Toast;{private String[][] childrenData;public String[] groupData;private Context context;private PinnedHeaderExpandableListView listView;private LayoutInflater inflater;public MainAdapter(String[][] childrenData,String[] groupData,Context context,PinnedHeaderExpandableListView listView){this.groupData = groupData;this.childrenData = childrenData;this.context = context;this.listView = listView;inflater = LayoutInflater.from(this.context);}@Overridepublic Object getChild(int groupPosition, int childPosition) {return childrenData[groupPosition][childPosition];}(int groupPosition, int childPosition) {return 0;}@Overridepublic View getChildView(int groupPosition, int childPosition,boolean isLastChild, View convertView, ViewGroup parent) {View view = null;if (convertView != null) {view = convertView;} else {view = inflater.inflate(R.layout.child, null);}TextView text = (TextView)view.findViewById(R.id.childto);text.setText(childrenData[groupPosition][childPosition]);return view;}(int groupPosition) {if(groupPosition<0)return 0;return childrenData[groupPosition].length;}@Overridepublic Object getGroup(int groupPosition) {return groupData[groupPosition];}() {return groupData.length;}(int groupPosition) {return 0;}@Overridepublic View getGroupView(int groupPosition, boolean isExpanded,View convertView, ViewGroup parent) {View view = null;//menuif(groupPosition==0){view = inflater.inflate(R.layout.menu, null);view.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 80));view.setTag(1);TextView btn1=(TextView)view.findViewById(R.id.btn1);btn1.setOnClickListener(new View.OnClickListener() {(View v) {Toast.makeText(context, “特别关心”, Toast.LENGTH_SHORT).show();}});return view;}//普通分组if (convertView != null&&(Integer)convertView.getTag()==0){view = convertView;} else {view = inflater.inflate(R.layout.group, null);view.setTag(0);}TextView text = (TextView)view.findViewById(R.id.groupto);if (isExpanded) {text.setText(“- “+groupData[groupPosition]);}else{text.setText(“+ “+groupData[groupPosition]);}return view;}() {return true;}(int groupPosition, int childPosition) {return true;}}
是不是很少，需要自己改的代码就这两个文件。 工程在这里：我的github地址 戳戳戳：
最好的节约是珍惜时间，最大的浪费是虚度年华。
