本文实例为大家分享了Android仿QQ可拉伸头部控件的具体实现代码，供大家参考，具体内容如下

该控件大致思路：

1.采用继承listview加入头部view。
2.监听listview滚动。
3.自定义动画回弹。

先看效果吧：

activity-main.xml布局如下：

<LinearLayout xmlns:andro
 xmlns:tools="http://schemas.android.com/tools"
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:orientation="horizontal"
 tools:context=".MainActivity" >

 <com.example.headerlistview.HeaderListView
 android:
 android:layout_width="match_parent"
 android:layout_height="match_parent"
 android:cacheColorHint="@android:color/transparent"
 android:divider="@android:color/darker_gray"
 android:dividerHeight="1dip"
 android:duplicateParentState="true"
 android:scrollbars="none" >
 </com.example.headerlistview.HeaderListView>

</LinearLayout>

headerview.xml布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:andro
 android:layout_width="match_parent"
 android:layout_height="wrap_content"
 android:orientation="vertical" >

 <ImageView 
 android:
 android:layout_width="match_parent"
 android:layout_height="150dip"
 android:scaleType="centerCrop"
 android:src="@drawable/lifei987"
 />

</LinearLayout>

list_item布局：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:andro
 android:layout_width="match_parent"
 android:layout_height="80dip"
 android:gravity="center_vertical"
 android:orientation="horizontal" >
"

 <ImageView
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:src="@drawable/ic_launcher" />

 <LinearLayout
 android:layout_width="match_parent"
 android:layout_height="80dip"
 android:layout_marginLeft="10dip"
 android:orientation="vertical" >

 <TextView
 android:
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_marginTop="10dip"
 android:text="lifei" />

 <TextView
 android:
 android:layout_width="wrap_content"
 android:layout_height="wrap_content"
 android:layout_marginTop="10dip"
 android:text="lifeiasdfasdfasfsadfasf" />
 </LinearLayout>

</LinearLayout>

activity代码：

package com.example.headerlistview;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.os.Bundle;
import android.app.Activity;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.SimpleAdapter;

public class MainActivity extends Activity {

 private HeaderListView header_lv;

 private ImageView header_iv;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);
 getHeaderView();
 initView();
 }


 private void initView() {
 // TODO Auto-generated method stub
 header_lv=(HeaderListView) findViewById(R.id.header_lv);
 header_lv.addHeaderView(getHeaderView());
 header_lv.setHeaderView(header_iv);
 header_lv.setAdapter(getSimpleAdapter());
 }

 public BaseAdapter getSimpleAdapter(){
 List<Map<String, Object>> data=new ArrayList<Map<String,Object>>();
 for(int i=0;i<15;i++){
 Map<String, Object> map=new HashMap<String, Object>();
 map.put("name", "郑州___"+i);
 map.put("describe", "asdfasdfasdfasdfasdfsadfsad");
 data.add(map);
 }

 SimpleAdapter simpleAdapter=new SimpleAdapter(this, data, R.layout.list_item, new String[]{"name","describe"}, new int[]{R.id.tv_name,R.id.tv_describe});
 return simpleAdapter;
 }

 public View getHeaderView(){
 View view= getLayoutInflater().inflate(R.layout.headerview, null);
 header_iv =(ImageView) view.findViewById(R.id.header_image);
 return view;
 }

}