Android 自定义ListView实现底部分页刷新与顶部下拉刷新，androidlistview

在项目开发中，由于数据过大时，需要进行分页加载或下拉刷新，来缓解一次性加载的过长等待。本篇博文实例讲解通过自定义的ListView实现底部分页加载和顶部下拉刷新的效果。

其效果图：

一.ListView 底部分页加载

整个底部分页加载，主要分一下几步：

1.加载底部自定义View;

2.响应OnScrollListener监听事件，onScroll方法记录最后可见的View Item以及整个totalItemCount。当onScrollStateChanged状态改变时，

当滑动到底端，并滑动状态为 SCROLL_STATE_IDLE,显示底部加载View,开始实现自定义加载接口;

3.当数据加载完成时，隐藏底部下拉View.

自定义底部下拉加载PaginationListView代码如下：

<span style="font-family:KaiTi_GB2312;font-size:18px;">package com.example.paginationrefreshlistdemo.listview;

import android.content.Context;

import android.util.AttributeSet;

import android.view.LayoutInflater;

import android.view.View;

import android.widget.AbsListView;

import android.widget.AbsListView.OnScrollListener;

import android.widget.ListView;

import com.example.paginationrefreshlistdemo.R;

public class PaginationListView extends ListView implements OnScrollListener{

	//底部View

	private View footerView;

	//ListView item个数

	int totalItemCount = 0;

	//最后可见的Item

	int lastVisibleItem = 0;

	//是否加载标示

	boolean isLoading = false;

	public PaginationListView(Context context) {

		super(context);

		initView(context);

	}

	public PaginationListView(Context context, AttributeSet attrs) {

		super(context, attrs);

		initView(context);

	}

	public PaginationListView(Context context, AttributeSet attrs, int defStyle) {

		super(context, attrs, defStyle);

		initView(context);

	}

	/**

	 * 初始化ListView

	 */

	private void initView(Context context){

		LayoutInflater mInflater = LayoutInflater.from(context);

		footerView = mInflater.inflate(R.layout.footer, null);

		footerView.setVisibility(View.GONE);

		this.setOnScrollListener(this);

		//添加底部View

		this.addFooterView(footerView);

	}

	@Override

	public void onScrollStateChanged(AbsListView view, int scrollState) {

		//当滑动到底端，并滑动状态为 not scrolling

		if(lastVisibleItem == totalItemCount && scrollState == SCROLL_STATE_IDLE){

			if(!isLoading){

				isLoading = true;

				//设置可见

				footerView.setVisibility(View.VISIBLE);

				//加载数据

				onLoadListener.onLoad();

			}

		}

	}

	@Override

	public void onScroll(AbsListView view, int firstVisibleItem,

			int visibleItemCount, int totalItemCount) {

		this.lastVisibleItem = firstVisibleItem + visibleItemCount;

		this.totalItemCount = totalItemCount;

	}

	private OnLoadListener onLoadListener;

	public void setOnLoadListener(OnLoadListener onLoadListener){

		this.onLoadListener = onLoadListener;

	}

	/**

	 * 加载数据接口

	 * @author Administrator

	 *

	 */

	public interface OnLoadListener{

		void onLoad();

	}

	/**

	 * 数据加载完成

	 */

	public void loadComplete(){

		footerView.setVisibility(View.GONE);

		isLoading = false;

		this.invalidate();

	}

}

</span>

底部下拉加载布局footer.xml

<span style="font-family:KaiTi_GB2312;font-size:18px;"><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:id="@+id/footer_ll"

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    android:gravity="center"

    android:orientation="horizontal" >

    <ProgressBar

        android:id="@+id/progress"

        style="?android:attr/progressBarStyleSmall"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_marginBottom="30dp"

        android:layout_marginTop="30dp" />

    <TextView

        android:id="@+id/tv"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_marginLeft="20dp"

        android:text="正在加载..."

        android:textColor="#FF0000" />

</LinearLayout></span>

二.ListView顶部下拉刷新

数据顶部下拉刷新的步骤如下：

1.加载顶部自定义View,通过设置View的边距来显示和隐藏View；

2.通过OnScrollListener监听事件，获取ListView的活动状态以及firstVisibleItem首位可见的Item；

3.通过OnTouchListener监听事件，通过判断是否在首位，以及处理ACTION_DOWN,ACTION_MOVE,ACTION_UP

各个状态事件,并记录none（正常）,pull（下拉），release（释放），reflashing（刷新）等状态。

ACTION_DOWN:判断是否在首列，若是，记录该点位置startY;

ACTION_MOVE:记录移动后的tempY，获取间距space,与View的高度比较后，动态获取View上边距，并设置。

ACTION_UP:记录为reflashing状态，刷新数据

4.刷新完成后，还原各自所处状态，隐藏View。

顶部下拉刷新自定义ReflashListVIew

<span style="font-family:KaiTi_GB2312;font-size:18px;">package com.example.paginationrefreshlistdemo.listview;

import java.text.SimpleDateFormat;

import java.util.Date;

import android.annotation.SuppressLint;

import android.content.Context;

import android.util.AttributeSet;

import android.view.LayoutInflater;

import android.view.MotionEvent;

import android.view.View;

import android.view.ViewGroup;

import android.view.animation.RotateAnimation;

import android.widget.AbsListView;

import android.widget.ImageView;

import android.widget.ProgressBar;

import android.widget.TextView;

import android.widget.AbsListView.OnScrollListener;

import android.widget.ListView;

import com.example.paginationrefreshlistdemo.R;

public class RefreshListView extends ListView implements OnScrollListener{

	//顶部View

	private View topView;

	//第一个可见View

	int firstVisibleItem;

	//顶部View的高度

	int headerHeight;

	// listview 当前滚动状态；

	int scrollState;

	// 标记，当前是在listview最顶端摁下的；

	boolean isRefresh;

	// 摁下时的Y值；

	int startY;

	int state;// 当前的状态；

	final int NONE = 0;// 正常状态；

	final int PULL = 1;// 提示下拉状态；

	final int RELESE = 2;// 提示释放状态；

	final int REFLASHING = 3;// 刷新状态；

	public RefreshListView(Context context) {

		super(context);

		initView(context);

	}

	public RefreshListView(Context context, AttributeSet attrs) {

		super(context, attrs);

		initView(context);

	}

	public RefreshListView(Context context, AttributeSet attrs, int defStyle) {

		super(context, attrs, defStyle);

		initView(context);

	}

	/**

	 * 初始化ListView

	 */

	private void initView(Context context){

		LayoutInflater mInflater = LayoutInflater.from(context);

		topView = mInflater.inflate(R.layout.top, null);

		measureView(topView);

		headerHeight = topView.getMeasuredHeight();

		//初始状态设置隐藏

		topPadding(-headerHeight);

		this.setOnScrollListener(this);

		this.addHeaderView(topView);

	}

	@Override

	public void onScrollStateChanged(AbsListView view, int scrollState) {

		//当滑动到底端，并滑动状态为 not scrolling

		this.scrollState = scrollState;

	}

	/**

	 * 通知父布局，占用的宽，高；

	 *

	 * @param view

	 */

	private void measureView(View view) {

		ViewGroup.LayoutParams p = view.getLayoutParams();

		if (p == null) {

			p = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,

					ViewGroup.LayoutParams.WRAP_CONTENT);

		}

		int width = ViewGroup.getChildMeasureSpec(0, 0, p.width);

		int height;

		int tempHeight = p.height;

		if (tempHeight > 0) {

			height = MeasureSpec.makeMeasureSpec(tempHeight,

					MeasureSpec.EXACTLY);

		} else {

			height = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED);

		}

		view.measure(width, height);

	}

	/**

	 * 设置header 布局 上边距；

	 *

	 * @param topPadding

	 */

	private void topPadding(int topPadding) {

		topView.setPadding(topView.getPaddingLeft(), topPadding,

				topView.getPaddingRight(), topView.getPaddingBottom());

		topView.invalidate();

	}

	@Override

	public void onScroll(AbsListView view, int firstVisibleItem,

			int visibleItemCount, int totalItemCount) {

		this.firstVisibleItem = firstVisibleItem ;

	}

	@Override

	public boolean onTouchEvent(MotionEvent ev) {

		// TODO Auto-generated method stub

		switch (ev.getAction()) {

		//往下

		case MotionEvent.ACTION_DOWN:

			if (firstVisibleItem == 0) {

				isRefresh = true;

				startY = (int) ev.getY();

			}

			break;

		//移动

		case MotionEvent.ACTION_MOVE:

			onMove(ev);

			break;

		//向上

		case MotionEvent.ACTION_UP:

			if (state == RELESE) {

				state = REFLASHING;

				// 加载最新数据；

				reflashViewByState();

				onRefreshListener.onRefresh();

			} else if (state == PULL) {

				state = NONE;

				isRefresh = false;

				reflashViewByState();

			}

			break;

		}

		return super.onTouchEvent(ev);

	}

	/**

	 * 判断移动过程操作；

	 *

	 * @param ev

	 */

	private void onMove(MotionEvent ev) {

		if (!isRefresh) {

			return;

		}

		int tempY = (int) ev.getY();

		int space = tempY - startY;

		int topPadding = space - headerHeight;

		switch (state) {

		case NONE:

			if (space > 0) {

				state = PULL;

				reflashViewByState();

			}

			break;

		case PULL:

			topPadding(topPadding);

			if (space > headerHeight + 30

					&& scrollState == SCROLL_STATE_TOUCH_SCROLL) {

				state = RELESE;

				reflashViewByState();

			}

			break;

		case RELESE:

			topPadding(topPadding);

			if (space < headerHeight + 30) {

				state = PULL;

				reflashViewByState();

			} else if (space <= 0) {

				state = NONE;

				isRefresh = false;

				reflashViewByState();

			}

			break;

		}

	}

	/**

	 * 根据当前状态，改变界面显示；

	 */

	private void reflashViewByState() {

		TextView tip = (TextView) topView.findViewById(R.id.tip);

		ImageView arrow = (ImageView) topView.findViewById(R.id.arrow);

		ProgressBar progress = (ProgressBar) topView.findViewById(R.id.progress_refresh);

		RotateAnimation anim = new RotateAnimation(0, 180,

				RotateAnimation.RELATIVE_TO_SELF, 0.5f,

				RotateAnimation.RELATIVE_TO_SELF, 0.5f);

		anim.setDuration(500);

		anim.setFillAfter(true);

		RotateAnimation anim1 = new RotateAnimation(180, 0,

				RotateAnimation.RELATIVE_TO_SELF, 0.5f,

				RotateAnimation.RELATIVE_TO_SELF, 0.5f);

		anim1.setDuration(500);

		anim1.setFillAfter(true);

		switch (state) {

		case NONE:

			arrow.clearAnimation();

			topPadding(-headerHeight);

			break;

		case PULL:

			arrow.setVisibility(View.VISIBLE);

			progress.setVisibility(View.GONE);

			tip.setText("下拉可以刷新！");

			arrow.clearAnimation();

			arrow.setAnimation(anim1);

			break;

		case RELESE:

			arrow.setVisibility(View.VISIBLE);

			progress.setVisibility(View.GONE);

			tip.setText("松开可以刷新！");

			arrow.clearAnimation();

			arrow.setAnimation(anim);

			break;

		case REFLASHING:

			topPadding(50);

			arrow.setVisibility(View.GONE);

			progress.setVisibility(View.VISIBLE);

			tip.setText("正在刷新...");

			arrow.clearAnimation();

			break;

		}

	}

	private OnRefreshListener onRefreshListener;

	public void setOnRefreshListener(OnRefreshListener onRefreshListener){

		this.onRefreshListener = onRefreshListener;

	}

	/**

	 * 加载数据接口

	 * @author Administrator

	 *

	 */

	public interface OnRefreshListener{

		void onRefresh();

	}

	/**

	 * 数据加载完成

	 */

	@SuppressLint("SimpleDateFormat")

	public void refreshComplete(){

		state = NONE;

		isRefresh = false;

		reflashViewByState();

		TextView lastupdatetime = (TextView) topView

				.findViewById(R.id.lastupdate_time);

		SimpleDateFormat format = new SimpleDateFormat("yyyy年MM月dd日 hh:mm:ss");

		Date date = new Date(System.currentTimeMillis());

		String time = format.format(date);

		lastupdatetime.setText(time);

	}

}

</span>

顶部下拉刷新布局top.xml

<span style="font-family:KaiTi_GB2312;font-size:18px;"><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="wrap_content"

    android:orientation="vertical" >

    <RelativeLayout

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:paddingBottom="10dip"

        android:paddingTop="10dip" >

        <LinearLayout

            android:id="@+id/layout"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_centerInParent="true"

            android:gravity="center"

            android:orientation="vertical" >

            <TextView

                android:id="@+id/tip"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content"

                android:text="下拉可以刷新！" />

            <TextView

                android:id="@+id/lastupdate_time"

                android:layout_width="wrap_content"

                android:layout_height="wrap_content" />

        </LinearLayout>

        <ImageView

            android:id="@+id/arrow"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_toLeftOf="@id/layout"

            android:layout_marginRight="20dip"

            android:src="@drawable/pull" />

        <ProgressBar

            android:id="@+id/progress_refresh"

            style="?android:attr/progressBarStyleSmall"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:layout_toLeftOf="@id/layout"

            android:layout_marginRight="20dip"

            android:visibility="gone" />

    </RelativeLayout>

</LinearLayout></span>

三.其他文件代码

1.主布局activity_main.xml

<span style="font-family:KaiTi_GB2312;font-size:18px;"><LinearLayout 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"

    android:orientation="vertical"

   >

    <TextView

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="ListView底部分页刷新和顶部下拉刷新"

        android:gravity="center"

        android:textSize="18sp"

        android:textColor="#FF0000"

        android:layout_marginBottom="20dp"

    	android:layout_marginTop="20dp"/>

    <ListView

        android:id="@+id/main_lv"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        ></ListView>

</LinearLayout>

</span>

2.底部分页布局activity_pagination.xml

<span style="font-family:KaiTi_GB2312;font-size:18px;"><LinearLayout 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"

    android:orientation="vertical"

   >

    <TextView

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="ListView底部分页刷新"

        android:gravity="center"

        android:textSize="18sp"

        android:textColor="#FF0000"

        android:layout_marginBottom="20dp"

        android:layout_marginTop="20dp"/>

    <com.example.paginationrefreshlistdemo.listview.PaginationListView

        android:id="@+id/pagination_lv"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        />

</LinearLayout>

</span>

3.顶部下拉刷新activity_refresh.xml

<span style="font-family:KaiTi_GB2312;font-size:18px;"><LinearLayout 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"

    android:orientation="vertical"

   >

    <TextView

        android:layout_width="match_parent"

        android:layout_height="wrap_content"

        android:text="ListView底部分页刷新"

        android:gravity="center"

        android:textSize="18sp"

        android:textColor="#FF0000"

        android:layout_marginBottom="20dp"

        android:layout_marginTop="20dp"/>

    <com.example.paginationrefreshlistdemo.listview.PaginationListView

        android:id="@+id/pagination_lv"

        android:layout_width="match_parent"

        android:layout_height="match_parent"

        />

</LinearLayout>

</span>

4.Adapter加载布局list_view.xml

<span style="font-family:KaiTi_GB2312;font-size:18px;"><RelativeLayout 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" >

    <LinearLayout

        android:id="@+id/content_ll"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_centerInParent="true"

        android:layout_marginLeft="20dp"

        android:gravity="center"

        android:orientation="vertical" >

        <TextView

            android:id="@+id/content_tv"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:text="亲亲，来一下"

            android:textColor="#FF0000" />

        <TextView

            android:id="@+id/date_tv"

            android:layout_width="wrap_content"

            android:layout_height="wrap_content"

            android:textColor="#00FF00" />

    </LinearLayout>

    <ImageView

        android:id="@+id/iv"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_centerVertical="true"

        android:layout_toLeftOf="@id/content_ll"

        android:src="@drawable/emotion" />

</RelativeLayout></span>

5.实体ApkBean

<span style="font-family:KaiTi_GB2312;font-size:18px;">package com.example.paginationrefreshlistdemo.bean;

public class ApkBean {

	private String content;

	private String dateString;

	/**

	 * @return the content

	 */

	public String getContent() {

		return content;

	}

	/**

	 * @param content the content to set

	 */

	public void setContent(String content) {

		this.content = content;

	}

	/**

	 * @return the dateString

	 */

	public String getDateString() {

		return dateString;

	}

	/**

	 * @param dateString the dateString to set

	 */

	public void setDateString(String dateString) {

		this.dateString = dateString;

	}

}

</span>

6.适配器DemoAdapter

<span style="font-family:KaiTi_GB2312;font-size:18px;">package com.example.paginationrefreshlistdemo.adapter;

import java.util.List;

import com.example.paginationrefreshlistdemo.R;

import com.example.paginationrefreshlistdemo.bean.ApkBean;

import android.content.Context;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.ImageView;

import android.widget.TextView;

public class DemoAdapter extends BaseAdapter {

	private List<ApkBean> datas ;

	private LayoutInflater mInfalter;

	public DemoAdapter(Context context,List<ApkBean> datas){

		this.datas = datas;

		this.mInfalter = LayoutInflater.from(context);

	}

	public void updateView( List<ApkBean> datas ){

		this.datas = datas;

		this.notifyDataSetChanged();

	}

	@Override

	public int getCount() {

		// TODO Auto-generated method stub

		return datas.size();

	}

	@Override

	public Object getItem(int position) {

		// TODO Auto-generated method stub

		return datas.get(position);

	}

	@Override

	public long getItemId(int position) {

		// TODO Auto-generated method stub

		return position;

	}

	@Override

	public View getView(int position, View convertView, ViewGroup parent) {

		// TODO Auto-generated method stub

		HolderView holderView;

		if(convertView == null){

			holderView = new HolderView();

			convertView = mInfalter.inflate(R.layout.list_view_main, null);

			holderView.contentTv = (TextView) convertView.findViewById(R.id.content_tv);

			holderView.dateTv = (TextView) convertView.findViewById(R.id.date_tv);

			convertView.setTag(holderView);

		}else{

			holderView =(HolderView) convertView.getTag();

		}

		holderView.contentTv.setText(datas.get(position).getContent());

		if(datas.get(position).getDateString() == null){

			holderView.dateTv.setVisibility(View.GONE);

		}else{

			holderView.dateTv.setVisibility(View.VISIBLE);

			holderView.dateTv.setText(datas.get(position).getDateString());

		}

		return convertView;

	}

	public class HolderView{

		ImageView iv;

		TextView contentTv,dateTv;

	}

}

</span>

7.主函数MainActivity.java,一个ListView中包含底部下拉加载和顶部下拉刷新数据。

<span style="font-family:KaiTi_GB2312;font-size:18px;">package com.example.paginationrefreshlistdemo.activity;

import java.util.ArrayList;

import java.util.List;

import com.example.paginationrefreshlistdemo.R;

import com.example.paginationrefreshlistdemo.adapter.DemoAdapter;

import com.example.paginationrefreshlistdemo.bean.ApkBean;

import android.app.Activity;

import android.content.Intent;

import android.os.Bundle;

import android.view.View;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ListView;

public class MainActivity extends Activity {

	private ListView mainLv;

	private DemoAdapter demoAdapter;

	private List<ApkBean> datas = new ArrayList<ApkBean>();

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_main);

		initData();

		mainLv =(ListView) this.findViewById(R.id.main_lv);

		mainLv.setOnItemClickListener(new OnItemClickListener() {

			@Override

			public void onItemClick(AdapterView<?> parent, View view,

					int position, long id) {

				switch (position) {

				case 0:

					startActvity(PaginationActivity.class);

					break;

				case 1:

					startActvity(RefreshActivity.class);

					break;

				}

			}

		});

		showView();

	}

	private void startActvity(Class<?> clz){

		Intent intent = new Intent();

		intent.setClass(this, clz);

		this.startActivity(intent);

	}

	private void initData(){

		ApkBean apkBean = new ApkBean();

		apkBean.setContent("ListView分页刷新");

		ApkBean apkBean2 = new ApkBean();

		apkBean2.setContent("ListView下拉刷新");

		datas.add(apkBean);

		datas.add(apkBean2);

	}

	private void showView(){

		if(demoAdapter == null){

			demoAdapter = new DemoAdapter(this, datas);

			mainLv.setAdapter(demoAdapter);

		}else{

			demoAdapter.updateView(datas);

		}

	}

}

</span>

8.分页加载PaginationActivity.java,使用PaginationListView

<span style="font-family:KaiTi_GB2312;font-size:18px;">package com.example.paginationrefreshlistdemo.activity;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Date;

import java.util.List;

import com.example.paginationrefreshlistdemo.R;

import com.example.paginationrefreshlistdemo.adapter.DemoAdapter;

import com.example.paginationrefreshlistdemo.bean.ApkBean;

import com.example.paginationrefreshlistdemo.listview.PaginationListView;

import com.example.paginationrefreshlistdemo.listview.PaginationListView.OnLoadListener;

import android.annotation.SuppressLint;

import android.app.Activity;

import android.os.Bundle;

import android.os.Handler;

import android.view.View;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

public class PaginationActivity extends Activity implements OnLoadListener {

	private PaginationListView paginationLv;

	private DemoAdapter paginationAdapter;

	private List<ApkBean> datas = new ArrayList<ApkBean>();

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_pagination);

		initData();

		paginationLv = (PaginationListView) this

				.findViewById(R.id.pagination_lv);

		paginationLv.setOnLoadListener(this);

		paginationLv.setOnItemClickListener(new OnItemClickListener() {

			@Override

			public void onItemClick(AdapterView<?> parent, View view,

					int position, long id) {

			}

		});

		showView();

	}

	@SuppressLint("SimpleDateFormat")

	private void initData() {

		ApkBean apkBean;

		String dateString;

		long dateLong = new Date().getTime();

		for (int i = 0; i < 20; i++) {

			apkBean = new ApkBean();

			apkBean.setContent("这是一个美好的夜晚    " + i);

			dateLong = dateLong + i * 1000 * 6;

			dateString = new SimpleDateFormat("yyyy-MM-dd HHmmss")

					.format(new Date(dateLong));

			apkBean.setDateString(dateString);

			datas.add(apkBean);

		}

	}

	/**

	 * 加载适配器

	 */

	private void showView() {

		if (paginationAdapter == null) {

			paginationAdapter = new DemoAdapter(this, datas);

			paginationLv.setAdapter(paginationAdapter);

		} else {

			paginationAdapter.updateView(datas);

		}

	}

	@Override

	public void onLoad() {

		// 为了显示效果，采用延迟加载

		new Handler().postDelayed(new Runnable() {

			@Override

			public void run() {

				// TODO Auto-generated method stub

				initLoadData();

				showView();

				paginationLv.loadComplete();

			}

		}, 3000);

	}

	@SuppressLint("SimpleDateFormat")

	private void initLoadData() {

		ApkBean apkBean;

		String dateString;

		long dateLong = new Date().getTime();

		for (int i = 0; i < 20; i++) {

			apkBean = new ApkBean();

			apkBean.setContent("这是一个新的开始    " + i);

			dateLong = dateLong + i * 1000 * 6 * 60;

			dateString = new SimpleDateFormat("yyyy-MM-dd HHmmss")

					.format(new Date(dateLong));

			apkBean.setDateString(dateString);

			datas.add(apkBean);

		}

	}

}

</span>

9.顶部刷新RefreshActivity.java，使用自定义RefreshListView

<span style="font-family:KaiTi_GB2312;font-size:18px;">package com.example.paginationrefreshlistdemo.activity;

import java.text.SimpleDateFormat;

import java.util.ArrayList;

import java.util.Date;

import java.util.List;

import com.example.paginationrefreshlistdemo.R;

import com.example.paginationrefreshlistdemo.adapter.DemoAdapter;

import com.example.paginationrefreshlistdemo.bean.ApkBean;

import com.example.paginationrefreshlistdemo.listview.RefreshListView;

import com.example.paginationrefreshlistdemo.listview.RefreshListView.OnRefreshListener;

import android.annotation.SuppressLint;

import android.app.Activity;

import android.os.Bundle;

import android.os.Handler;

import android.view.View;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

public class RefreshActivity extends Activity implements OnRefreshListener{

	private RefreshListView refreshLv;

	private DemoAdapter refreshAdapter;

	private List<ApkBean> datas = new ArrayList<ApkBean>();

	@Override

	protected void onCreate(Bundle savedInstanceState) {

		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_refresh);

		initData();

		refreshLv =(RefreshListView) this.findViewById(R.id.refresh_lv);

		refreshLv.setOnRefreshListener(this);

		refreshLv.setOnItemClickListener(new OnItemClickListener() {

			@Override

			public void onItemClick(AdapterView<?> parent, View view,

					int position, long id) {

			}

		});

		showView();

	}

	@SuppressLint("SimpleDateFormat")

	private void initData(){

		ApkBean apkBean;

		String dateString;

		long dateLong = new Date().getTime();

		for (int i = 0; i < 20; i++) {

			apkBean = new ApkBean();

			apkBean.setContent("这是一个刷新的早晨      " + i);

			dateLong = dateLong + i * 1000 * 6;

			dateString = new SimpleDateFormat("yyyy-MM-dd HHmmss")

					.format(new Date(dateLong));

			apkBean.setDateString(dateString);

			datas.add(apkBean);

		}

	}

	private void showView(){

		if(refreshAdapter == null){

			refreshAdapter = new DemoAdapter(this, datas);

			refreshLv.setAdapter(refreshAdapter);

		}else{

			refreshAdapter.updateView(datas);

		}

	}

	@Override

	public void onRefresh() {

		new Handler().postDelayed(new Runnable() {

			@Override

			public void run() {

				initLoadData();

				refreshAdapter.updateView(datas);

				refreshLv.refreshComplete();

			}

		}, 3000);

	}

	@SuppressLint("SimpleDateFormat")

	private void initLoadData() {

		ApkBean apkBean;

		String dateString;

		long dateLong = new Date().getTime();

		for (int i = 0; i < 5; i++) {

			apkBean = new ApkBean();

			apkBean.setContent("刷新新的的数据  " + i);

			dateLong = dateLong + i * 1000 * 6 * 60;

			dateString = new SimpleDateFormat("yyyy-MM-dd HHmmss")

					.format(new Date(dateLong));

			apkBean.setDateString(dateString);

			datas.add(apkBean);

		}

	}

}

</span>

秒客网

Android 自定义ListView实现底部分页刷新与顶部下拉刷新，androidlistview

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