Android带刷新时间显示的PullToRefresh上下拉刷新

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal" > <FrameLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_margin="10dip" > <ImageView  android:id="@+id/iv_listview_header_arrow"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_gravity="center"  android:minWidth="30dip"  android:src="@mipmap/ic_launcher" /> <ProgressBar  android:id="@+id/pb_listview_header"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_gravity="center"  android:indeterminateDrawable="@drawable/common_progressbar"  android:visibility="gone" /> </FrameLayout> <LinearLayout android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_gravity="center_vertical" android:gravity="center_horizontal" android:orientation="vertical" > <TextView  android:id="@+id/tv_listview_header_state"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:text="下拉刷新"  android:textColor="#FF0000"  android:textSize="18sp" /> <TextView  android:id="@+id/tv_listview_header_last_update_time"  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_marginTop="5dip"  android:text="最后刷新时间: 2014-10-10 12:56:12"  android:textSize="14sp" /> </LinearLayout></LinearLayout>

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" > <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center_horizontal" android:layout_margin="10dip" android:gravity="center_vertical" android:orientation="horizontal" > <ProgressBar  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_gravity="center"  android:indeterminateDrawable="@drawable/common_progressbar" /> <TextView  android:layout_width="wrap_content"  android:layout_height="wrap_content"  android:layout_marginLeft="10dip"  android:text="加载更多..."  android:textColor="#FF0000"  android:textSize="18sp" /> </LinearLayout></LinearLayout>

<?xml version="1.0" encoding="utf-8"?><android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" tools:context="jiexinkeji.com.shuaxin.MainActivity"> <jiexinkeji.com.shuaxin.RefreshListView android:id="@+id/refreshlistview" android:layout_width="match_parent" android:layout_height="match_parent"></jiexinkeji.com.shuaxin.RefreshListView></android.support.constraint.ConstraintLayout>

<?xml version="1.0" encoding="utf-8"?><rotate xmlns:android="http://schemas.android.com/apk/res/android" android:fromDegrees="0" android:pivotX="50%" android:pivotY="50%" android:toDegrees="360" > <shape android:innerRadiusRatio="3" android:shape="ring" android:useLevel="false" > <gradient  android:centerColor="#FF6666"  android:endColor="#FF0000"  android:startColor="#FFFFFF"  android:type="sweep" /> </shape></rotate>

package jiexinkeji.com.shuaxin;public interface OnRefreshListener { /** * 下拉刷新 */ void onDownPullRefresh(); /** * 上拉加载更多 */ void onLoadingMore();}

package jiexinkeji.com.shuaxin;import android.content.Context;import android.support.v4.widget.SwipeRefreshLayout;import android.util.AttributeSet;import android.util.Log;import android.view.MotionEvent;import android.view.View;import android.view.animation.Animation;import android.view.animation.RotateAnimation;import android.widget.AbsListView;import android.widget.ImageView;import android.widget.ListView;import android.widget.ProgressBar;import android.widget.TextView;import java.text.SimpleDateFormat;public class RefreshListView extends ListView implements AbsListView.OnScrollListener { private static final String TAG = "RefreshListView"; private int firstVisibleItemPosition; // 屏幕显示在第一个的item的索引 private int downY; // 按下时y轴的偏移量 private int headerViewHeight; // 头布局的高度 private View headerView; // 头布局的对象 private final int DOWN_PULL_REFRESH = 0; // 下拉刷新状态 private final int RELEASE_REFRESH = 1; // 松开刷新 private final int REFRESHING = 2; // 正在刷新中 private int currentState = DOWN_PULL_REFRESH; // 头布局的状态: 默认为下拉刷新状态 private Animation upAnimation; // 向上旋转的动画 private Animation downAnimation; // 向下旋转的动画 private ImageView ivArrow; // 头布局的剪头 private ProgressBar mProgressBar; // 头布局的进度条 private TextView tvState; // 头布局的状态 private TextView tvLastUpdateTime; // 头布局的最后更新时间 private OnRefreshListener mOnRefershListener; private boolean isScrollToBottom; // 是否滑动到底部 private View footerView; // 脚布局的对象 private int footerViewHeight; // 脚布局的高度 private boolean isLoadingMore = false; // 是否正在加载更多中 public RefreshListView(Context context, AttributeSet attrs) { super(context, attrs); initHeaderView(); initFooterView(); this.setOnScrollListener(this); } /** * 初始化脚布局 */ private void initFooterView() { footerView = View.inflate(getContext(), R.layout.listview_footer, null); footerView.measure(0, 0); footerViewHeight = footerView.getMeasuredHeight(); footerView.setPadding(0, -footerViewHeight, 0, 0); this.addFooterView(footerView); } /** * 初始化头布局 */ private void initHeaderView() { headerView = View.inflate(getContext(), R.layout.listview_header, null); ivArrow = (ImageView) headerView  .findViewById(R.id.iv_listview_header_arrow); mProgressBar = (ProgressBar) headerView  .findViewById(R.id.pb_listview_header); tvState = (TextView) headerView  .findViewById(R.id.tv_listview_header_state); tvLastUpdateTime = (TextView) headerView  .findViewById(R.id.tv_listview_header_last_update_time); // 设置最后刷新时间 tvLastUpdateTime.setText("最后刷新时间: " + getLastUpdateTime()); headerView.measure(0, 0); // 系统会帮我们测量出headerView的高度 headerViewHeight = headerView.getMeasuredHeight(); headerView.setPadding(0, -headerViewHeight, 0, 0); this.addHeaderView(headerView); // 向ListView的顶部添加一个view对象 initAnimation(); } /** * 获得系统的最新时间 * * @return */ private String getLastUpdateTime() { SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"); return sdf.format(System.currentTimeMillis()); } /** * 初始化动画 */ private void initAnimation() { upAnimation = new RotateAnimation(0f, -180f,  Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,  0.5f); upAnimation.setDuration(500); upAnimation.setFillAfter(true); // 动画结束后, 停留在结束的位置上 downAnimation = new RotateAnimation(-180f, -360f,  Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF,  0.5f); downAnimation.setDuration(500); downAnimation.setFillAfter(true); // 动画结束后, 停留在结束的位置上 } @Override public boolean onTouchEvent(MotionEvent ev) { switch (ev.getAction()) {  case MotionEvent.ACTION_DOWN :  downY = (int) ev.getY();  break;  case MotionEvent.ACTION_MOVE :  int moveY = (int) ev.getY();  // 移动中的y - 按下的y = 间距.  int diff = (moveY - downY) / 2;  // -头布局的高度 + 间距 = paddingTop  int paddingTop = -headerViewHeight + diff;  // 如果: -头布局的高度 > paddingTop的值 执行super.onTouchEvent(ev);  if (firstVisibleItemPosition == 0   && -headerViewHeight < paddingTop) {   if (paddingTop > 0 && currentState == DOWN_PULL_REFRESH) { // 完全显示了.   Log.i(TAG, "松开刷新");   currentState = RELEASE_REFRESH;   refreshHeaderView();   } else if (paddingTop < 0    && currentState == RELEASE_REFRESH) { // 没有显示完全   Log.i(TAG, "下拉刷新");   currentState = DOWN_PULL_REFRESH;   refreshHeaderView();   }   // 下拉头布局   headerView.setPadding(0, paddingTop, 0, 0);   return true;  }  break;  case MotionEvent.ACTION_UP :  // 判断当前的状态是松开刷新还是下拉刷新  if (currentState == RELEASE_REFRESH) {   Log.i(TAG, "刷新数据.");   // 把头布局设置为完全显示状态   headerView.setPadding(0, 0, 0, 0);   // 进入到正在刷新中状态   currentState = REFRESHING;   refreshHeaderView();   if (mOnRefershListener != null) {   mOnRefershListener.onDownPullRefresh(); // 调用使用者的监听方法   }  } else if (currentState == DOWN_PULL_REFRESH) {   // 隐藏头布局   headerView.setPadding(0, -headerViewHeight, 0, 0);  }  break;  default :  break; } return super.onTouchEvent(ev); } /** * 根据currentState刷新头布局的状态 */ private void refreshHeaderView() { switch (currentState) {  case DOWN_PULL_REFRESH : // 下拉刷新状态  tvState.setText("下拉刷新");  ivArrow.startAnimation(downAnimation); // 执行向下旋转  break;  case RELEASE_REFRESH : // 松开刷新状态  tvState.setText("松开刷新");  ivArrow.startAnimation(upAnimation); // 执行向上旋转  break;  case REFRESHING : // 正在刷新中状态  ivArrow.clearAnimation();  ivArrow.setVisibility(View.GONE);  mProgressBar.setVisibility(View.VISIBLE);  tvState.setText("正在刷新中...");  break;  default :  break; } } /** * 当滚动状态改变时回调 */ @Override public void onScrollStateChanged(AbsListView view, int scrollState) { if (scrollState == SCROLL_STATE_IDLE  || scrollState == SCROLL_STATE_FLING) {  // 判断当前是否已经到了底部  if (isScrollToBottom && !isLoadingMore) {  isLoadingMore = true;  // 当前到底部  Log.i(TAG, "加载更多数据");  footerView.setPadding(0, 0, 0, 0);  this.setSelection(this.getCount());  if (mOnRefershListener != null) {   mOnRefershListener.onLoadingMore();  }  } } } /** * 当滚动时调用 * * @param firstVisibleItem *  当前屏幕显示在顶部的item的position * @param visibleItemCount *  当前屏幕显示了多少个条目的总数 * @param totalItemCount *  ListView的总条目的总数 */ @Override public void onScroll(AbsListView view, int firstVisibleItem,    int visibleItemCount, int totalItemCount) { firstVisibleItemPosition = firstVisibleItem; if (getLastVisiblePosition() == (totalItemCount - 1)) {  isScrollToBottom = true; } else {  isScrollToBottom = false; } } /** * 设置刷新监听事件 * * @param listener */ public void setOnRefreshListener(OnRefreshListener listener) { mOnRefershListener = listener; } /** * 隐藏头布局 */ public void hideHeaderView() { headerView.setPadding(0, -headerViewHeight, 0, 0); ivArrow.setVisibility(View.VISIBLE); mProgressBar.setVisibility(View.GONE); tvState.setText("下拉刷新"); tvLastUpdateTime.setText("最后刷新时间: " + getLastUpdateTime()); currentState = DOWN_PULL_REFRESH; } /** * 隐藏脚布局 */ public void hideFooterView() { footerView.setPadding(0, -footerViewHeight, 0, 0); isLoadingMore = false; }}

package jiexinkeji.com.shuaxin;import android.app.Activity;import android.graphics.Color;import android.os.AsyncTask;import android.os.Bundle;import android.os.SystemClock;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.TextView;import java.util.ArrayList;import java.util.List;public class MainActivity extends Activity implements OnRefreshListener { private List<String> textList; private MyAdapter adapter; private RefreshListView rListView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); rListView = (RefreshListView) findViewById(R.id.refreshlistview); textList = new ArrayList<String>(); for (int i = 0; i < 25; i++) {  textList.add("这是一条ListView的数据" + i); } adapter = new MyAdapter(); rListView.setAdapter(adapter); rListView.setOnRefreshListener(this); } private class MyAdapter extends BaseAdapter { @Override public int getCount() {  // TODO Auto-generated method stub  return textList.size(); } @Override public Object getItem(int position) {  // TODO Auto-generated method stub  return textList.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  TextView textView = new TextView(MainActivity.this);  textView.setText(textList.get(position));  textView.setTextSize(18.0f);  return textView; } } @Override public void onDownPullRefresh() { new AsyncTask<Void, Void, Void>() {  @Override  protected Void doInBackground(Void... params) {  SystemClock.sleep(2000);  for (int i = 0; i < 2; i++) {   textList.add(0, "这是下拉刷新出来的数据" + i);  }  return null;  }  @Override  protected void onPostExecute(Void result) {  adapter.notifyDataSetChanged();  rListView.hideHeaderView();  } }.execute(new Void[]{}); } @Override public void onLoadingMore() { new AsyncTask<Void, Void, Void>() {  @Override  protected Void doInBackground(Void... params) {  SystemClock.sleep(5000);  textList.add("这是加载更多出来的数据1");  textList.add("这是加载更多出来的数据2");  textList.add("这是加载更多出来的数据3");  return null;  }  @Override  protected void onPostExecute(Void result) {  adapter.notifyDataSetChanged();  // 控制脚布局隐藏  rListView.hideFooterView();  } }.execute(new Void[]{}); }}