Android带刷新时间显示的PullToRefresh上下拉刷新

 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  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) {>

 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 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(); 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() { @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() { @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[]{}); } }