转载请标明地址：http://blog.csdn.net/zhaoyazhi2129/article/details/38751681
效果图
新建刷新的头部布局
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="bottom" > <RelativeLayout android:id="@+id/listview_header_content" android:layout_width="fill_parent" android:layout_height="60dp" > <LinearLayout android:id="@+id/listview_header_text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:gravity="center" android:orientation="vertical" > <TextView android:id="@+id/listview_header_hint_textview" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/listview_header_hint_normal" android:textColor="@color/tvcolor"/> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="3dp" > <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/listview_header_last_time" android:textSize="12sp" android:textColor="@color/tvcolor"/> <TextView android:id="@+id/listview_header_time" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textSize="12sp" android:textColor="@color/tvcolor" /> </LinearLayout> </LinearLayout> <ImageView android:id="@+id/listview_header_arrow" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@id/listview_header_text" android:layout_centerVertical="true" android:layout_marginLeft="-35dp" android:src="@drawable/listview_arrow" /> <ProgressBar android:id="@+id/listview_header_progressbar" android:layout_width="30dp" android:layout_height="30dp" android:layout_alignLeft="@id/listview_header_text" android:layout_centerVertical="true" android:layout_marginLeft="-40dp" android:visibility="invisible" /> </RelativeLayout> </LinearLayout>
在工具包下自己定义头部信息
PullListViewHeader.java
package com.cards.basic.util;
import android.content.Context;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.View;
import android.view.animation.Animation;
import android.view.animation.RotateAnimation;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ProgressBar;
import android.widget.TextView;
import com.cards.R;
/**
*
* @explaination 下拉载入很多其它
* @author yazhizhao
* @time 2014-8-1上午11:30:35
*/
public class PullListViewHeader extends LinearLayout {
private LinearLayout mContainer;
private ImageView mArrowImageView;
private ProgressBar mProgressBar;
private TextView mHintTextView;
private int mState = STATE_NORMAL;
private Animation mRotateUpAnim;
private Animation mRotateDownAnim;
private final int ROTATE_ANIM_DURATION = 180;
public final static int STATE_NORMAL = 0;
public final static int STATE_READY = 1;
public final static int STATE_REFRESHING = 2;
public PullListViewHeader(Context context) {
super(context);
initView(context);
}
/**
* @param context
* @param attrs
*/
public PullListViewHeader(Context context, AttributeSet attrs) {
super(context, attrs);
initView(context);
}
private void initView(Context context) {
// 初始情况，设置下拉刷新view高度为0
LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
LayoutParams.FILL_PARENT, 0);
mContainer = (LinearLayout) LayoutInflater.from(context).inflate(
R.layout.listview_header, null);
addView(mContainer, lp);
setGravity(Gravity.BOTTOM);
mArrowImageView = (ImageView)findViewById(R.id.listview_header_arrow);
mHintTextView = (TextView)findViewById(R.id.listview_header_hint_textview);
mProgressBar = (ProgressBar)findViewById(R.id.listview_header_progressbar);
mRotateUpAnim = new RotateAnimation(0.0f, -180.0f,
Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
0.5f);
mRotateUpAnim.setDuration(ROTATE_ANIM_DURATION);
mRotateUpAnim.setFillAfter(true);
mRotateDownAnim = new RotateAnimation(-180.0f, 0.0f,
Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,
0.5f);
mRotateDownAnim.setDuration(ROTATE_ANIM_DURATION);
mRotateDownAnim.setFillAfter(true);
}
public void setState(int state) {
if (state == mState) return ;
if (state == STATE_REFRESHING) { // 显示运行进度
mArrowImageView.clearAnimation();
mArrowImageView.setVisibility(View.INVISIBLE);
mProgressBar.setVisibility(View.VISIBLE);
} else { // 显示箭头图片
mArrowImageView.setVisibility(View.VISIBLE);
mProgressBar.setVisibility(View.INVISIBLE);
}
switch(state){
case STATE_NORMAL:
if (mState == STATE_READY) {
mArrowImageView.startAnimation(mRotateDownAnim);
}
if (mState == STATE_REFRESHING) {
mArrowImageView.clearAnimation();
}
mHintTextView.setText(R.string.listview_header_hint_normal);
break;
case STATE_READY:
if (mState != STATE_READY) {
mArrowImageView.clearAnimation();
mArrowImageView.startAnimation(mRotateUpAnim);
mHintTextView.setText(R.string.listview_header_hint_ready);
}
break;
case STATE_REFRESHING:
mHintTextView.setText(R.string.listview_header_hint_loading);
break;
default:
}
mState = state;
}
public void setVisiableHeight(int height) {
if (height < 0)
height = 0;
LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) mContainer
.getLayoutParams();
lp.height = height;
mContainer.setLayoutParams(lp);
}
public int getVisiableHeight() {
return mContainer.getHeight();
}
}
在工具包下创建listview的自己定义文件
PullListView.java
package com.cards.basic.util;
import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.view.animation.DecelerateInterpolator;
import android.widget.AbsListView;
import android.widget.AbsListView.OnScrollListener;
import android.widget.ListView;
import android.widget.RelativeLayout;
import android.widget.Scroller;
import android.widget.TextView;
import com.cards.R;
/**
*
* @explaination 下拉载入很多其它
* @author yazhizhao
* @time 2014-8-1上午11:30:45
*/
public class PullListView extends ListView implements OnScrollListener {
private float mLastY = -1; // y
private Scroller mScroller; // 用于回滚
private OnScrollListener mScrollListener; // 回滚监听
// 接口触发刷新和负载很多其它
private IXListViewListener mListViewListener;
//
private PullListViewHeader mHeaderView;
// 整个头部布局
private RelativeLayout mHeaderViewContent;
// 上次刷新的时间布局
private TextView mHeaderTimeView;
// 头部的高度
private int mHeaderViewHeight;
private boolean mEnablePullRefresh = true;
// 是否刷新
private boolean mPullRefreshing = false;
// 总共的条数
private int mTotalItemCount;
// 对于照片卷轴,卷轴回来页眉或页脚。
private int mScrollBack;
private final static int SCROLLBACK_HEADER = 0;
private final static int SCROLL_DURATION = 400; // scroll back duration
private final static float OFFSET_RADIO = 1.8f; // support iOS like pull
// feature.
/**
* @param context
*/
public PullListView(Context context) {
super(context);
initWithContext(context);
}
public PullListView(Context context, AttributeSet attrs) {
super(context, attrs);
initWithContext(context);
}
public PullListView(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
initWithContext(context);
}
// ListView须要滚动事件,它将调度事件,用户的侦听器(作为一个代理
private void initWithContext(Context context) {
mScroller = new Scroller(context, new DecelerateInterpolator());
super.setOnScrollListener(this);
// 初始化控件
mHeaderView = new PullListViewHeader(context);
mHeaderViewContent = (RelativeLayout) mHeaderView
.findViewById(R.id.listview_header_content);
mHeaderTimeView = (TextView) mHeaderView
.findViewById(R.id.listview_header_time);
addHeaderView(mHeaderView);
// 初始化头部信息
mHeaderView.getViewTreeObserver().addOnGlobalLayoutListener(
new OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
mHeaderViewHeight = mHeaderViewContent.getHeight();
getViewTreeObserver()
.removeGlobalOnLayoutListener(this);
}
});
}
/**
* 启用或禁用拉刷新功能
*
* @param enable
*/
public void setPullRefreshEnable(boolean enable) {
// 是否刷新
mEnablePullRefresh = enable;
// 假设不是刷新
if (!mEnablePullRefresh) {
mHeaderViewContent.setVisibility(View.INVISIBLE);
} else {
// 假设是刷新
mHeaderViewContent.setVisibility(View.VISIBLE);
}
}
/**
* 停止刷新,复位标题视图
*/
public void stopRefresh() {
if (mPullRefreshing == true) {
mPullRefreshing = false;
resetHeaderHeight();
}
}
/**
* 设置最后刷新时间
*
* @param time
*/
public void setRefreshTime(String time) {
mHeaderTimeView.setText(time);
}
private void invokeOnScrolling() {
if (mScrollListener instanceof OnXScrollListener) {
OnXScrollListener l = (OnXScrollListener) mScrollListener;
l.onXScrolling(this);
}
}
private void updateHeaderHeight(float delta) {
mHeaderView.setVisiableHeight((int) delta
+ mHeaderView.getVisiableHeight());
if (mEnablePullRefresh && !mPullRefreshing) { // 未处于刷新状态，更新箭头
if (mHeaderView.getVisiableHeight() > mHeaderViewHeight) {
mHeaderView.setState(PullListViewHeader.STATE_READY);
} else {
mHeaderView.setState(PullListViewHeader.STATE_NORMAL);
}
}
setSelection(0); // 滚动到顶部每一个时间
}
/**
* 重置头的高度
*/
private void resetHeaderHeight() {
int height = mHeaderView.getVisiableHeight();
if (height == 0) // 不显示
return;
// 刷新而且头部不全然显示，而且什么也不做
if (mPullRefreshing && height <= mHeaderViewHeight) {
return;
}
int finalHeight = 0; // 默认值:滚动回驳回头.
// 刷新。回滚显示全部的头部信息
if (mPullRefreshing && height > mHeaderViewHeight) {
finalHeight = mHeaderViewHeight;
}
mScrollBack = SCROLLBACK_HEADER;
mScroller.startScroll(0, height, 0, finalHeight - height,
SCROLL_DURATION);
invalidate();
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
if (mLastY == -1) {
mLastY = ev.getRawY();
}
switch (ev.getAction()) {
case MotionEvent.ACTION_DOWN:
mLastY = ev.getRawY();
break;
case MotionEvent.ACTION_MOVE:
final float deltaY = ev.getRawY() - mLastY;
mLastY = ev.getRawY();
if (getFirstVisiblePosition() == 0
&& (mHeaderView.getVisiableHeight() > 0 || deltaY > 0)) {
// 第一项是显示,标题显示或拉下来
updateHeaderHeight(deltaY / OFFSET_RADIO);
invokeOnScrolling();
}
break;
default:
mLastY = -1; // 重置
if (getFirstVisiblePosition() == 0) {
// 调用刷新
if (mEnablePullRefresh
&& mHeaderView.getVisiableHeight() > mHeaderViewHeight) {
mPullRefreshing = true;
mHeaderView.setState(PullListViewHeader.STATE_REFRESHING);
if (mListViewListener != null) {
mListViewListener.onRefresh();
}
}
resetHeaderHeight();
}
break;
}
return super.onTouchEvent(ev);
}
@Override
public void computeScroll() {
if (mScroller.computeScrollOffset()) {
if (mScrollBack == SCROLLBACK_HEADER) {
mHeaderView.setVisiableHeight(mScroller.getCurrY());
}
postInvalidate();
invokeOnScrolling();
}
super.computeScroll();
}
@Override
public void setOnScrollListener(OnScrollListener l) {
mScrollListener = l;
}
@Override
public void onScrollStateChanged(AbsListView view, int scrollState) {
if (mScrollListener != null) {
mScrollListener.onScrollStateChanged(view, scrollState);
}
}
@Override
public void onScroll(AbsListView view, int firstVisibleItem,
int visibleItemCount, int totalItemCount) {
// 发送到用户的侦听器
mTotalItemCount = totalItemCount;
if (mScrollListener != null) {
mScrollListener.onScroll(view, firstVisibleItem, visibleItemCount,
totalItemCount);
}
}
public void setXListViewListener(IXListViewListener l) {
mListViewListener = l;
}
/**
* 你能够听列表视图。OnScrollListener或这一个。它将调用onXScrolling当标题/页脚滚动回。
*/
public interface OnXScrollListener extends OnScrollListener {
public void onXScrolling(View view);
}
/**
* 实现这个接口获取/负载很多其它的事件,刷新
*/
public interface IXListViewListener {
public void onRefresh();
public void onLoadMore();
}
}
在布局文件里使用自己定义的PullListView文件
<com.cards.basic.util.PullListView
android:id="@+id/lv_changelist"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:layout_below="@+id/titlebar_above"
android:layout_margin="10dp"
android:cacheColorHint="#00000000"
android:divider="#00000000"
android:fadingEdge="none"
android:listSelector="#00000000" >
</com.cards.basic.util.PullListView>
在相应的activity类实现IXListViewListener接口，并继承onRefresh和onLoadMore方法
package com.cards.activity;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import com.cards.R;
import com.cards.adapter.ChangeCardAdapter;
import com.cards.basic.util.PullListView;
import com.cards.basic.util.PullListView.IXListViewListener;
import com.cards.commom.Common;
import com.cards.commom.MyApp;
import com.cards.entity.Findf;
import com.cards.manager.ChangeMgr;
/**
* @explaination 交换名片
* @author yazhizhao
* @time 2014-7-8上午9:30:59
*/
public class ChangeCardAct extends Activity implements IXListViewListener {
private ChangeCardAdapter adapter;
private Handler mHandler;
private PullListView pointList;
private List<Findf> list;
private ChangeMgr changeMgr;
private Button btnRegistered;
private MessageThread messageThread;
private SharedPreferences sp;
private int size;
private ImageView imageView1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.act_change_card);
// 用于安全退出
MyApp.getInstance().addActivity(this);
// 设置标题
TextView tvTitleCommenCenter = (TextView) findViewById(R.id.tv_title);
tvTitleCommenCenter.setText("发现");
// 查看交换请求
btnRegistered = (Button) findViewById(R.id.btn_right_title);
btnRegistered.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
startActivity(new Intent().setClass(ChangeCardAct.this, ChangeReqAct.class));
}
});
// 开启线程
messageThread = new MessageThread();
messageThread.start();
// 获取附近人
changeMgr = new ChangeMgr(ChangeCardAct.this, handler);
changeMgr.findF();
mHandler = new Handler();
//是否收到交换信息
changeHint();
}
/**
*
* @explaination 是否收到交换信息
* @author yazhizhao
* @time 2014-8-22上午10:19:39
*/
private void changeHint() {
sp = getSharedPreferences("common_data", MODE_PRIVATE);
size = sp.getInt("Status_size", 0);
imageView1 = (ImageView) findViewById(R.id.imageView1);
if (size > 0) {
imageView1.setVisibility(View.VISIBLE);
} else if (size == 0) {
imageView1.setVisibility(View.GONE);
}
}
/**
*
* @explaination 新开启线程一直请求有没有人交换
* @author yazhizhao
* @time 2014-7-25下午5:20:36
*/
class MessageThread extends Thread {
public void run() {
while (true) {
try {
// 请求有没有人交换
changeMgr.friendInfo();
//是否收到交换信息
changeHint();
Thread.sleep(1000 * 6);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
/**
* 消息处理机制
*/
private Handler handler = new Handler() {
@Override
public void handleMessage(Message msg) {
Common.cancelLoading();
switch (msg.what) {
case 0:
Bundle bundle = msg.getData();
ArrayList arraylist = bundle.getParcelableArrayList("list");
list = (List<Findf>) arraylist.get(0);
pointList = (PullListView) findViewById(R.id.lv_changelist);
adapter = new ChangeCardAdapter(ChangeCardAct.this, list,
handler);
pointList.setAdapter(adapter);
pointList.setXListViewListener(ChangeCardAct.this);
break;
case 2:
pointList = (PullListView) findViewById(R.id.lv_changelist);
list = new ArrayList<Findf>();
adapter = new ChangeCardAdapter(ChangeCardAct.this, list,
handler);
pointList.setAdapter(adapter);
pointList.setXListViewListener(ChangeCardAct.this);
break;
}
}
};
@Override
protected void onStart() {
// 用于安全退出
MyApp.getInstance().addActivity(this);
super.onStart();
}
/**
*
* @explaination 下拉刷新设置上次时间
* @author yazhizhao
* @time 2014-7-28上午11:10:51
* @return
*/
private String getCurrentDate() {
SimpleDateFormat sdf = new java.text.SimpleDateFormat(
"yyyy-MM-dd HH:mm:ss");
String str = sdf.format(new java.util.Date());
return str;
}
/**
*
* @explaination 下拉刷新
* @author yazhizhao
* @time 2014-7-28上午11:10:51
*/
@Override
public void onRefresh() {
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
onReload();
changeHint();
onLoad();
}
}, 2000);
}
/**
*
* @explaination 载入很多其它
* @author yazhizhao
* @time 2014-7-28上午11:10:51
*/
@Override
public void onLoadMore() {
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
}
}, 2000);
}
@Override
protected void onResume() {
// 把定位状态设置为第一次定位
changeMgr.findF();
changeHint();
super.onResume();
}
/**
*
* @explaination 停止刷新并设置时间
* @author yazhizhao
* @time 2014-8-22上午10:23:47
*/
private void onLoad() {
pointList.stopRefresh();
pointList.setRefreshTime(getCurrentDate());
}
/**
*
* @explaination 再次刷新
* @author yazhizhao
* @time 2014-8-22上午10:23:50
*/
public boolean onReload() {
boolean result = true;
changeMgr.findF();
return result;
}
}