main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/root" android:layout_width="fill_parent" android:layout_height="fill_parent" > <com.curiousby.demoxlistview.xlistview.MsgListView android:id="@+id/mylist" android:layout_width="fill_parent" android:layout_height="fill_parent" android:transcriptMode="normal" > </com.curiousby.demoxlistview.xlistview.MsgListView> </LinearLayout>
xlistview_header.xml
<?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:background="@drawable/coversation_bg" android:gravity="bottom" > <RelativeLayout android:id="@+id/xlistview_header_content" android:layout_width="fill_parent" android:layout_height="60dp" android:paddingLeft="40dip" > <FrameLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignParentLeft="true" android:layout_centerVertical="true" > <ImageView android:id="@+id/xlistview_header_arrow" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:src="@drawable/refresh_arrow_2" /> <ProgressBar android:id="@+id/xlistview_header_progressbar" android:layout_width="16dip" android:layout_height="16dip" android:layout_gravity="center" android:indeterminate="true" android:indeterminateBehavior="repeat" android:indeterminateDrawable="@drawable/common_loading4" android:visibility="invisible" /> </FrameLayout> <LinearLayout android:id="@+id/xlistview_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/xlistview_header_hint_textview" android:layout_width="wrap_content" android:layout_height="wrap_content" android:textColor="#ffffff" android:text="@string/xlistview_header_hint_normal" /> <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:textColor="#ffffff" android:text="@string/xlistview_header_last_time" android:textSize="12sp" /> <TextView android:id="@+id/xlistview_header_time" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="刚刚" android:textColor="#ffffff" android:textSize="12sp" /> </LinearLayout> </LinearLayout> </RelativeLayout> </LinearLayout>
xlistview_footer.xml
<?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:background="#0fff" > <RelativeLayout android:id="@+id/xlistview_footer_content" android:layout_width="fill_parent" android:layout_height="wrap_content" android:layout_gravity="center" > <LinearLayout android:id="@+id/xlistview_footer_progressbar" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_centerInParent="true" android:layout_marginBottom="2dp" android:layout_marginTop="2dp" android:gravity="center" android:orientation="horizontal" > <ProgressBar android:layout_width="16dip" android:layout_height="16dip" android:indeterminate="true" android:indeterminateBehavior="repeat" android:indeterminateDrawable="@drawable/common_loading3" /> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="5dip" android:text="@string/xlistview_header_hint_loading" android:textColor="#000000" /> </LinearLayout> <TextView android:id="@+id/xlistview_footer_hint_textview" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:text="@string/xlistview_footer_hint_normal" android:textColor="#000000" android:visibility="invisible" /> </RelativeLayout> </LinearLayout>
message_header.xml
<?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:background="#0fff" android:gravity="bottom" > <RelativeLayout android:id="@+id/msg_header_content" android:layout_width="fill_parent" android:layout_height="30dp" > <FrameLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" > <ProgressBar android:id="@+id/xlistview_header_progressbar" android:layout_width="16dip" android:layout_height="16dip" android:layout_gravity="center" android:indeterminate="true" android:indeterminateBehavior="repeat" android:indeterminateDrawable="@drawable/common_loading3" android:visibility="invisible" /> <TextView android:id="@+id/xlistview_header_hint_textview" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="显示更多消息" android:textColor="#000000" /> </FrameLayout> </RelativeLayout> </LinearLayout>
package com.curiousby.demoxlistview; import java.util.ArrayList; import java.util.List; import com.curiousby.demoxlistview.xlistview.MsgListView; import com.curiousby.demoxlistview.xlistview.MsgListView.IXListViewListener; import android.os.Bundle; import android.view.MotionEvent; import android.view.View; import android.view.View.OnTouchListener; import android.app.Activity; import android.content.Context; public class MainActivity extends Activity implements IXListViewListener, OnTouchListener { private List<String> mlist = new ArrayList<String>(); private MylistAdapter mAdapter; private Context context; private MsgListView listView; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); context = MainActivity.this; mAdapter = new MylistAdapter( this); mAdapter.setMlist(mlist); listView = (MsgListView) findViewById(R.id.mylist); listView.setOnTouchListener(this); listView.setPullLoadEnable(false); listView.setXListViewListener(this); listView.setAdapter(mAdapter); listView.setSelection(mAdapter.getCount() - 1); mlist.add("a"); mAdapter.notifyDataSetChanged(); } private int i; @Override public void onRefresh() { mlist.add(""+i++); mAdapter.notifyDataSetChanged(); listView.setSelection(mAdapter.getCount() - 1); listView.stopRefresh(); } @Override public void onLoadMore() { mlist.add(""+i++); listView.setSelection(mAdapter.getCount() - 1); mAdapter.notifyDataSetChanged(); } @Override public boolean onTouch(View arg0, MotionEvent arg1) { return false; } }
package com.curiousby.demoxlistview; import java.util.List; import android.content.Context; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.TextView; public class MylistAdapter extends BaseAdapter{ private List<String> mlist; private LayoutInflater mInflater; private Context context; public MylistAdapter( Context context) { this.mInflater = LayoutInflater.from(context); this.context = context; } public void setMlist(List<String> mlist) { this.mlist = mlist; notifyDataSetChanged(); } @Override public int getCount() { if (mlist != null ) { return mlist.size(); } return 0; } @Override public String getItem(int position) { if (mlist != null ) { return (String) mlist.get(position); } return ""; } @Override public long getItemId(int position) { return 0; } @Override public View getView(int position, View convertView, ViewGroup parent) { String item = getItem(position); ViewHolder viewHolder = null; if (convertView == null) { convertView = mInflater.inflate(R.layout.list_item, parent, false); viewHolder =new ViewHolder(convertView); convertView.setTag(viewHolder); }else{ viewHolder = (ViewHolder) convertView.getTag( ); } viewHolder.text.setText(item); return convertView; } class ViewHolder { private TextView text; ViewHolder(View baseView){ this.text = (TextView) baseView.findViewById(R.id.text); } } }
/** * @file XListViewHeader.java * @create Apr 18, 2012 5:22:27 PM * @author Maxwin * @description XListView's header */ package com.curiousby.demoxlistview.xlistview; import com.curiousby.demoxlistview.R; 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; public class XListViewHeader 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 XListViewHeader(Context context) { super(context); initView(context); } /** * @param context * @param attrs */ public XListViewHeader(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.xlistview_header, null); addView(mContainer, lp); setGravity(Gravity.BOTTOM); mArrowImageView = (ImageView) findViewById(R.id.xlistview_header_arrow); mHintTextView = (TextView) findViewById(R.id.xlistview_header_hint_textview); mProgressBar = (ProgressBar) findViewById(R.id.xlistview_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.xlistview_header_hint_normal); break; case STATE_READY: if (mState != STATE_READY) { mArrowImageView.clearAnimation(); mArrowImageView.startAnimation(mRotateUpAnim); mHintTextView.setText(R.string.xlistview_header_hint_ready); } break; case STATE_REFRESHING: mHintTextView.setText(R.string.xlistview_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(); } }
/** * @file XFooterView.java * @create Mar 31, 2012 9:33:43 PM * @author Maxwin * @description XListView's footer */ package com.curiousby.demoxlistview.xlistview; import com.curiousby.demoxlistview.R; import android.content.Context; import android.util.AttributeSet; import android.view.LayoutInflater; import android.view.View; import android.widget.LinearLayout; import android.widget.TextView; public class XListViewFooter extends LinearLayout { public final static int STATE_NORMAL = 0; public final static int STATE_READY = 1; public final static int STATE_LOADING = 2; private Context mContext; private View mContentView; private View mProgressBar; private TextView mHintView; public XListViewFooter(Context context) { super(context); initView(context); } public XListViewFooter(Context context, AttributeSet attrs) { super(context, attrs); initView(context); } public void setState(int state) { mHintView.setVisibility(View.INVISIBLE); mProgressBar.setVisibility(View.INVISIBLE); mHintView.setVisibility(View.INVISIBLE); if (state == STATE_READY) { mHintView.setVisibility(View.VISIBLE); mHintView.setText(R.string.xlistview_footer_hint_ready); } else if (state == STATE_LOADING) { mProgressBar.setVisibility(View.VISIBLE); } else { mHintView.setVisibility(View.VISIBLE); mHintView.setText(R.string.xlistview_footer_hint_normal); } } public void setBottomMargin(int height) { if (height < 0) return ; LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams)mContentView.getLayoutParams(); lp.bottomMargin = height; mContentView.setLayoutParams(lp); } public int getBottomMargin() { LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams)mContentView.getLayoutParams(); return lp.bottomMargin; } /** * normal status */ public void normal() { mHintView.setVisibility(View.VISIBLE); mProgressBar.setVisibility(View.GONE); } /** * loading status */ public void loading() { mHintView.setVisibility(View.GONE); mProgressBar.setVisibility(View.VISIBLE); } /** * hide footer when disable pull load more */ public void hide() { LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams)mContentView.getLayoutParams(); lp.height = 0; mContentView.setLayoutParams(lp); } /** * show footer */ public void show() { LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams)mContentView.getLayoutParams(); lp.height = LayoutParams.WRAP_CONTENT; mContentView.setLayoutParams(lp); } private void initView(Context context) { mContext = context; LinearLayout moreView = (LinearLayout)LayoutInflater.from(mContext).inflate(R.layout.xlistview_footer, null); addView(moreView); moreView.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT)); mContentView = moreView.findViewById(R.id.xlistview_footer_content); mProgressBar = moreView.findViewById(R.id.xlistview_footer_progressbar); mHintView = (TextView)moreView.findViewById(R.id.xlistview_footer_hint_textview); } }
/** * @file XListView.java * @package me.maxwin.view * @create Mar 18, 2012 6:28:41 PM * @author Maxwin * @description An ListView support (a) Pull down to refresh, (b) Pull up to load more. * Implement IXListViewListener, and see stopRefresh() / stopLoadMore(). */ package com.curiousby.demoxlistview.xlistview; import com.curiousby.demoxlistview.R; 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.ExpandableListView; import android.widget.ListAdapter; import android.widget.RelativeLayout; import android.widget.Scroller; import android.widget.TextView; public class XExpandableListView extends ExpandableListView implements OnScrollListener { private float mLastY = -1; // save event y private Scroller mScroller; // used for scroll back private OnScrollListener mScrollListener; // user's scroll listener // the interface to trigger refresh and load more. private IXListViewListener mListViewListener; // -- header view private XListViewHeader mHeaderView; // header view content, use it to calculate the Header's height. And hide it // when disable pull refresh. private RelativeLayout mHeaderViewContent; private TextView mHeaderTimeView; private int mHeaderViewHeight; // header view's height private boolean mEnablePullRefresh = true;// private boolean mPullRefreshing = false; // is refreashing. // -- footer view private XListViewFooter mFooterView; private boolean mEnablePullLoad; private boolean mPullLoading; private boolean mIsFooterReady = false; // total list items, used to detect is at the bottom of listview. private int mTotalItemCount; // for mScroller, scroll back from header or footer. private int mScrollBack; private final static int SCROLLBACK_HEADER = 0; private final static int SCROLLBACK_FOOTER = 1; private final static int SCROLL_DURATION = 400; // scroll back duration private final static int PULL_LOAD_MORE_DELTA = 50; // when pull up >= 50px // at bottom, trigger // load more. private final static float OFFSET_RADIO = 1.8f; // support iOS like pull // feature. /** * @param context */ public XExpandableListView(Context context) { super(context); initWithContext(context); } public XExpandableListView(Context context, AttributeSet attrs) { super(context, attrs); initWithContext(context); } public XExpandableListView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); initWithContext(context); } private void initWithContext(Context context) { mScroller = new Scroller(context, new DecelerateInterpolator()); // XListView need the scroll event, and it will dispatch the event to // user's listener (as a proxy). super.setOnScrollListener(this); // init header view mHeaderView = new XListViewHeader(context); mHeaderViewContent = (RelativeLayout) mHeaderView .findViewById(R.id.xlistview_header_content); mHeaderTimeView = (TextView) mHeaderView .findViewById(R.id.xlistview_header_time); addHeaderView(mHeaderView); // init footer view mFooterView = new XListViewFooter(context); // init header height mHeaderView.getViewTreeObserver().addOnGlobalLayoutListener( new OnGlobalLayoutListener() { @Override public void onGlobalLayout() { mHeaderViewHeight = mHeaderViewContent.getHeight(); getViewTreeObserver() .removeGlobalOnLayoutListener(this); } }); } @Override public void setAdapter(ListAdapter adapter) { // make sure XListViewFooter is the last footer view, and only add once. if (mIsFooterReady == false) { mIsFooterReady = true; addFooterView(mFooterView); } super.setAdapter(adapter); } /** * enable or disable pull down refresh feature. * * @param enable */ public void setPullRefreshEnable(boolean enable) { mEnablePullRefresh = enable; if (!mEnablePullRefresh) { // disable, hide the content mHeaderViewContent.setVisibility(View.INVISIBLE); } else { mHeaderViewContent.setVisibility(View.VISIBLE); } } /** * enable or disable pull up load more feature. * * @param enable */ public void setPullLoadEnable(boolean enable) { mEnablePullLoad = enable; if (!mEnablePullLoad) { mFooterView.hide(); mFooterView.setOnClickListener(null); } else { mPullLoading = false; mFooterView.show(); mFooterView.setState(XListViewFooter.STATE_NORMAL); // both "pull up" and "click" will invoke load more. mFooterView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { startLoadMore(); } }); } } /** * stop refresh, reset header view. */ public void stopRefresh() { if (mPullRefreshing == true) { mPullRefreshing = false; resetHeaderHeight(); } } /** * stop load more, reset footer view. */ public void stopLoadMore() { if (mPullLoading == true) { mPullLoading = false; mFooterView.setState(XListViewFooter.STATE_NORMAL); } } /** * set last refresh time * * @param time */ public void setRefreshTime(String time) { mHeaderTimeView.setText(time); } public void setRefreshTime(long time) { mHeaderTimeView.setText(TimeUtil.getChatTime(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(XListViewHeader.STATE_READY); } else { mHeaderView.setState(XListViewHeader.STATE_NORMAL); } } setSelection(0); // scroll to top each time } /** * reset header view's height. */ private void resetHeaderHeight() { int height = mHeaderView.getVisiableHeight(); if (height == 0) // not visible. return; // refreshing and header isn't shown fully. do nothing. if (mPullRefreshing && height <= mHeaderViewHeight) { return; } int finalHeight = 0; // default: scroll back to dismiss header. // is refreshing, just scroll back to show all the header. if (mPullRefreshing && height > mHeaderViewHeight) { finalHeight = mHeaderViewHeight; } mScrollBack = SCROLLBACK_HEADER; mScroller.startScroll(0, height, 0, finalHeight - height, SCROLL_DURATION); // trigger computeScroll invalidate(); } private void updateFooterHeight(float delta) { int height = mFooterView.getBottomMargin() + (int) delta; if (mEnablePullLoad && !mPullLoading) { if (height > PULL_LOAD_MORE_DELTA) { // height enough to invoke load // more. mFooterView.setState(XListViewFooter.STATE_READY); } else { mFooterView.setState(XListViewFooter.STATE_NORMAL); } } mFooterView.setBottomMargin(height); // setSelection(mTotalItemCount - 1); // scroll to bottom } private void resetFooterHeight() { int bottomMargin = mFooterView.getBottomMargin(); if (bottomMargin > 0) { mScrollBack = SCROLLBACK_FOOTER; mScroller.startScroll(0, bottomMargin, 0, -bottomMargin, SCROLL_DURATION); invalidate(); } } private void startLoadMore() { mPullLoading = true; mFooterView.setState(XListViewFooter.STATE_LOADING); if (mListViewListener != null) { mListViewListener.onLoadMore(); } } @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)) { // the first item is showing, header has shown or pull down. updateHeaderHeight(deltaY / OFFSET_RADIO); invokeOnScrolling(); } else if (getLastVisiblePosition() == mTotalItemCount - 1 && (mFooterView.getBottomMargin() > 0 || deltaY < 0)) { // last item, already pulled up or want to pull up. updateFooterHeight(-deltaY / OFFSET_RADIO); } break; default: mLastY = -1; // reset if (getFirstVisiblePosition() == 0) { // invoke refresh if (mEnablePullRefresh && mHeaderView.getVisiableHeight() > mHeaderViewHeight) { mPullRefreshing = true; mHeaderView.setState(XListViewHeader.STATE_REFRESHING); if (mListViewListener != null) { mListViewListener.onRefresh(); } } resetHeaderHeight(); } else if (getLastVisiblePosition() == mTotalItemCount - 1) { // invoke load more. if (mEnablePullLoad && mFooterView.getBottomMargin() > PULL_LOAD_MORE_DELTA) { startLoadMore(); } resetFooterHeight(); } break; } return super.onTouchEvent(ev); } @Override public void computeScroll() { if (mScroller.computeScrollOffset()) { if (mScrollBack == SCROLLBACK_HEADER) { mHeaderView.setVisiableHeight(mScroller.getCurrY()); } else { mFooterView.setBottomMargin(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) { // send to user's listener mTotalItemCount = totalItemCount; if (mScrollListener != null) { mScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount); } } public void setXListViewListener(IXListViewListener l) { mListViewListener = l; } /** * you can listen ListView.OnScrollListener or this one. it will invoke * onXScrolling when header/footer scroll back. */ public interface OnXScrollListener extends OnScrollListener { public void onXScrolling(View view); } /** * implements this interface to get refresh/load more event. */ public interface IXListViewListener { public void onRefresh(); public void onLoadMore(); } }
package com.curiousby.demoxlistview.xlistview; import java.text.SimpleDateFormat; import java.util.Date; import android.annotation.SuppressLint; /** * 时间工具类 * * @author way * */ @SuppressLint("SimpleDateFormat") public class TimeUtil { public static String getTime(long time) { SimpleDateFormat format = new SimpleDateFormat("yy-MM-dd HH:mm"); return format.format(new Date(time)); } public static String getHourAndMin(long time) { SimpleDateFormat format = new SimpleDateFormat("HH:mm"); return format.format(new Date(time)); } public static String getChatTime(long timesamp) { String result = ""; SimpleDateFormat sdf = new SimpleDateFormat("dd"); Date today = new Date(System.currentTimeMillis()); Date otherDay = new Date(timesamp); int temp = Integer.parseInt(sdf.format(today)) - Integer.parseInt(sdf.format(otherDay)); switch (temp) { case 0: result = "今天 " + getHourAndMin(timesamp); break; case 1: result = "昨天 " + getHourAndMin(timesamp); break; case 2: result = "前天 " + getHourAndMin(timesamp); break; default: // result = temp + "天前 "; result = getTime(timesamp); break; } return result; } }
/** * @file XListView.java * @package me.maxwin.view * @create Mar 18, 2012 6:28:41 PM * @author Maxwin * @description An ListView support (a) Pull down to refresh, (b) Pull up to load more. * Implement IXListViewListener, and see stopRefresh() / stopLoadMore(). */ package com.curiousby.demoxlistview.xlistview; import com.curiousby.demoxlistview.R; 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.ListAdapter; import android.widget.ListView; import android.widget.RelativeLayout; import android.widget.Scroller; //com.curiousby.demoxlistview.xlistview.MsgListView public class MsgListView extends ListView implements OnScrollListener { private float mLastY = -1; // save event y private Scroller mScroller; // used for scroll back private OnScrollListener mScrollListener; // user's scroll listener // the interface to trigger refresh and load more. private IXListViewListener mListViewListener; // -- header view private MsgHeader mHeaderView; // header view content, use it to calculate the Header's height. And hide it // when disable pull refresh. private RelativeLayout mHeaderViewContent; // private TextView mHeaderTimeView; private int mHeaderViewHeight; // header view's height private boolean mEnablePullRefresh = true;// private boolean mPullRefreshing = false; // is refreashing. // -- footer view private XListViewFooter mFooterView; private boolean mEnablePullLoad; private boolean mPullLoading; private boolean mIsFooterReady = false; // total list items, used to detect is at the bottom of listview. private int mTotalItemCount; // for mScroller, scroll back from header or footer. private int mScrollBack; private final static int SCROLLBACK_HEADER = 0; private final static int SCROLLBACK_FOOTER = 1; private final static int SCROLL_DURATION = 400; // scroll back duration private final static int PULL_LOAD_MORE_DELTA = 50; // when pull up >= 50px // at bottom, trigger // load more. private final static float OFFSET_RADIO = 1.8f; // support iOS like pull // feature. /** * @param context */ public MsgListView(Context context) { super(context); initWithContext(context); } public MsgListView(Context context, AttributeSet attrs) { super(context, attrs); initWithContext(context); } public MsgListView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); initWithContext(context); } private void initWithContext(Context context) { mScroller = new Scroller(context, new DecelerateInterpolator()); // XListView need the scroll event, and it will dispatch the event to // user's listener (as a proxy). super.setOnScrollListener(this); // init header view mHeaderView = new MsgHeader(context); mHeaderViewContent = (RelativeLayout) mHeaderView .findViewById(R.id.msg_header_content); // mHeaderTimeView = (TextView) mHeaderView // .findViewById(R.id.xlistview_header_time); addHeaderView(mHeaderView); // init footer view mFooterView = new XListViewFooter(context); // init header height mHeaderView.getViewTreeObserver().addOnGlobalLayoutListener( new OnGlobalLayoutListener() { @Override public void onGlobalLayout() { mHeaderViewHeight = mHeaderViewContent.getHeight(); getViewTreeObserver() .removeGlobalOnLayoutListener(this); } }); } @Override public void setAdapter(ListAdapter adapter) { // make sure XListViewFooter is the last footer view, and only add once. if (mIsFooterReady == false) { mIsFooterReady = true; addFooterView(mFooterView); } super.setAdapter(adapter); } /** * enable or disable pull down refresh feature. * * @param enable */ public void setPullRefreshEnable(boolean enable) { mEnablePullRefresh = enable; if (!mEnablePullRefresh) { // disable, hide the content mHeaderViewContent.setVisibility(View.INVISIBLE); } else { mHeaderViewContent.setVisibility(View.VISIBLE); } } /** * enable or disable pull up load more feature. * * @param enable */ public void setPullLoadEnable(boolean enable) { mEnablePullLoad = enable; if (!mEnablePullLoad) { mFooterView.hide(); mFooterView.setOnClickListener(null); } else { mPullLoading = false; mFooterView.show(); mFooterView.setState(XListViewFooter.STATE_NORMAL); // both "pull up" and "click" will invoke load more. mFooterView.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { startLoadMore(); } }); } } /** * stop refresh, reset header view. */ public void stopRefresh() { if (mPullRefreshing == true) { mPullRefreshing = false; resetHeaderHeight(); } } /** * stop load more, reset footer view. */ public void stopLoadMore() { if (mPullLoading == true) { mPullLoading = false; mFooterView.setState(XListViewFooter.STATE_NORMAL); } } /** * set last refresh time * * @param time */ // public void setRefreshTime(String time) { // mHeaderTimeView.setText(time); // } // // public void setRefreshTime(long time) { // mHeaderTimeView.setText(TimeUtil.getChatTime(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(XListViewHeader.STATE_READY); } else { mHeaderView.setState(XListViewHeader.STATE_NORMAL); } } setSelection(0); // scroll to top each time } /** * reset header view's height. */ private void resetHeaderHeight() { int height = mHeaderView.getVisiableHeight(); if (height == 0) // not visible. return; // refreshing and header isn't shown fully. do nothing. if (mPullRefreshing && height <= mHeaderViewHeight) { return; } int finalHeight = 0; // default: scroll back to dismiss header. // is refreshing, just scroll back to show all the header. if (mPullRefreshing && height > mHeaderViewHeight) { finalHeight = mHeaderViewHeight; } mScrollBack = SCROLLBACK_HEADER; mScroller.startScroll(0, height, 0, finalHeight - height, SCROLL_DURATION); // trigger computeScroll invalidate(); } private void updateFooterHeight(float delta) { int height = mFooterView.getBottomMargin() + (int) delta; if (mEnablePullLoad && !mPullLoading) { if (height > PULL_LOAD_MORE_DELTA) { // height enough to invoke load // more. mFooterView.setState(XListViewFooter.STATE_READY); } else { mFooterView.setState(XListViewFooter.STATE_NORMAL); } } mFooterView.setBottomMargin(height); // setSelection(mTotalItemCount - 1); // scroll to bottom } private void resetFooterHeight() { int bottomMargin = mFooterView.getBottomMargin(); if (bottomMargin > 0) { mScrollBack = SCROLLBACK_FOOTER; mScroller.startScroll(0, bottomMargin, 0, -bottomMargin, SCROLL_DURATION); invalidate(); } } private void startLoadMore() { mPullLoading = true; mFooterView.setState(XListViewFooter.STATE_LOADING); if (mListViewListener != null) { mListViewListener.onLoadMore(); } } @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)) { // the first item is showing, header has shown or pull down. updateHeaderHeight(deltaY / OFFSET_RADIO); invokeOnScrolling(); } else if (getLastVisiblePosition() == mTotalItemCount - 1 && (mFooterView.getBottomMargin() > 0 || deltaY < 0)) { // last item, already pulled up or want to pull up. updateFooterHeight(-deltaY / OFFSET_RADIO); } break; default: mLastY = -1; // reset if (getFirstVisiblePosition() == 0) { // invoke refresh if (mEnablePullRefresh && mHeaderView.getVisiableHeight() > mHeaderViewHeight) { mPullRefreshing = true; mHeaderView.setState(XListViewHeader.STATE_REFRESHING); if (mListViewListener != null) { mListViewListener.onRefresh(); } } resetHeaderHeight(); } else if (getLastVisiblePosition() == mTotalItemCount - 1) { // invoke load more. if (mEnablePullLoad && mFooterView.getBottomMargin() > PULL_LOAD_MORE_DELTA) { startLoadMore(); } resetFooterHeight(); } break; } return super.onTouchEvent(ev); } @Override public void computeScroll() { if (mScroller.computeScrollOffset()) { if (mScrollBack == SCROLLBACK_HEADER) { mHeaderView.setVisiableHeight(mScroller.getCurrY()); } else { mFooterView.setBottomMargin(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) { // send to user's listener mTotalItemCount = totalItemCount; if (mScrollListener != null) { mScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount); } } public void setXListViewListener(IXListViewListener l) { mListViewListener = l; } /** * you can listen ListView.OnScrollListener or this one. it will invoke * onXScrolling when header/footer scroll back. */ public interface OnXScrollListener extends OnScrollListener { public void onXScrolling(View view); } /** * implements this interface to get refresh/load more event. */ public interface IXListViewListener { public void onRefresh(); public void onLoadMore(); } }
/** * @file XListViewHeader.java * @create Apr 18, 2012 5:22:27 PM * @author Maxwin * @description XListView's header */ package com.curiousby.demoxlistview.xlistview; import com.curiousby.demoxlistview.R; import android.content.Context; import android.util.AttributeSet; import android.view.Gravity; import android.view.LayoutInflater; import android.view.View; import android.widget.LinearLayout; import android.widget.ProgressBar; import android.widget.TextView; public class MsgHeader extends LinearLayout { private LinearLayout mContainer; private ProgressBar mProgressBar; private TextView mHintTextView; private int mState = STATE_NORMAL; public final static int STATE_NORMAL = 0; public final static int STATE_READY = 1; public final static int STATE_REFRESHING = 2; public MsgHeader(Context context) { super(context); initView(context); } /** * @param context * @param attrs */ public MsgHeader(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.message_header, null); addView(mContainer, lp); setGravity(Gravity.BOTTOM); mHintTextView = (TextView) findViewById(R.id.xlistview_header_hint_textview); mProgressBar = (ProgressBar) findViewById(R.id.xlistview_header_progressbar); } public void setState(int state) { if (state == mState) return; if (state == STATE_REFRESHING) { // 显示进度 mProgressBar.setVisibility(View.VISIBLE); } else { // 显示箭头图片 mProgressBar.setVisibility(View.INVISIBLE); } switch (state) { case STATE_NORMAL: if (mState == STATE_READY) { } if (mState == STATE_REFRESHING) { } mHintTextView.setVisibility(View.VISIBLE); mHintTextView.setText("显示更多消息"); break; case STATE_READY: if (mState != STATE_READY) { mHintTextView.setVisibility(View.VISIBLE); mHintTextView.setText("释放即可显示"); } break; case STATE_REFRESHING: // mHintTextView.setText(R.string.xlistview_header_hint_loading); mHintTextView.setVisibility(View.GONE); 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(); } }
package com.curiousby.demoxlistview.xlistview; import android.content.Context; import android.graphics.Canvas; import android.util.AttributeSet; import android.view.MotionEvent; import android.view.View; import android.view.ViewGroup; import android.widget.AbsListView; import android.widget.AbsListView.OnScrollListener; import android.widget.ExpandableListAdapter; import android.widget.ExpandableListView; import android.widget.ExpandableListView.OnGroupClickListener; public class IphoneTreeView extends ExpandableListView implements OnScrollListener, OnGroupClickListener { public IphoneTreeView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); registerListener(); } public IphoneTreeView(Context context, AttributeSet attrs) { super(context, attrs); registerListener(); } public IphoneTreeView(Context context) { super(context); registerListener(); } /** * Adapter 接口 . 列表必须实现此接口 . */ public interface IphoneTreeHeaderAdapter { public static final int PINNED_HEADER_GONE = 0; public static final int PINNED_HEADER_VISIBLE = 1; public static final int PINNED_HEADER_PUSHED_UP = 2; /** * 获取 Header 的状态 * * @param groupPosition * @param childPosition * @return * PINNED_HEADER_GONE,PINNED_HEADER_VISIBLE,PINNED_HEADER_PUSHED_UP * 其中之一 */ int getTreeHeaderState(int groupPosition, int childPosition); /** * 配置 QQHeader, 让 QQHeader 知道显示的内容 * * @param header * @param groupPosition * @param childPosition * @param alpha */ void configureTreeHeader(View header, int groupPosition, int childPosition, int alpha); /** * 设置组按下的状态 * * @param groupPosition * @param status */ void onHeadViewClick(int groupPosition, int status); /** * 获取组按下的状态 * * @param groupPosition * @return */ int getHeadViewClickStatus(int groupPosition); } private static final int MAX_ALPHA = 255; private IphoneTreeHeaderAdapter mAdapter; /** * 用于在列表头显示的 View,mHeaderViewVisible 为 true 才可见 */ private View mHeaderView; /** * 列表头是否可见 */ private boolean mHeaderViewVisible; private int mHeaderViewWidth; private int mHeaderViewHeight; public void setHeaderView(View view) { mHeaderView = view; AbsListView.LayoutParams lp = new AbsListView.LayoutParams( ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT); view.setLayoutParams(lp); if (mHeaderView != null) { setFadingEdgeLength(0); } requestLayout(); } private void registerListener() { setOnScrollListener(this); setOnGroupClickListener(this); } /** * 点击 HeaderView 触发的事件 */ private void headerViewClick() { long packedPosition = getExpandableListPosition(this .getFirstVisiblePosition()); int groupPosition = ExpandableListView .getPackedPositionGroup(packedPosition); if (mAdapter.getHeadViewClickStatus(groupPosition) == 1) { this.collapseGroup(groupPosition); mAdapter.onHeadViewClick(groupPosition, 0); } else { this.expandGroup(groupPosition); mAdapter.onHeadViewClick(groupPosition, 1); } this.setSelectedGroup(groupPosition); } private float mDownX; private float mDownY; /** * 如果 HeaderView 是可见的 , 此函数用于判断是否点击了 HeaderView, 并对做相应的处理 , 因为 HeaderView * 是画上去的 , 所以设置事件监听是无效的 , 只有自行控制 . */ @Override public boolean onTouchEvent(MotionEvent ev) { if (mHeaderViewVisible) { switch (ev.getAction()) { case MotionEvent.ACTION_DOWN: mDownX = ev.getX(); mDownY = ev.getY(); if (mDownX <= mHeaderViewWidth && mDownY <= mHeaderViewHeight) { return true; } break; case MotionEvent.ACTION_UP: float x = ev.getX(); float y = ev.getY(); float offsetX = Math.abs(x - mDownX); float offsetY = Math.abs(y - mDownY); // 如果 HeaderView 是可见的 , 点击在 HeaderView 内 , 那么触 // 发 headerClick() if (x <= mHeaderViewWidth && y <= mHeaderViewHeight && offsetX <= mHeaderViewWidth && offsetY <= mHeaderViewHeight) { if (mHeaderView != null) { headerViewClick(); } return true; } break; default: break; } } return super.onTouchEvent(ev); } @Override public void setAdapter(ExpandableListAdapter adapter) { super.setAdapter(adapter); mAdapter = (IphoneTreeHeaderAdapter) adapter; } /** * * 点击了 Group 触发的事件 , 要根据根据当前点击 Group 的状态来 */ @Override public boolean onGroupClick(ExpandableListView parent, View v, int groupPosition, long id) { if (mAdapter.getHeadViewClickStatus(groupPosition) == 0) { mAdapter.onHeadViewClick(groupPosition, 1); parent.expandGroup(groupPosition); parent.setSelectedGroup(groupPosition); } else if (mAdapter.getHeadViewClickStatus(groupPosition) == 1) { mAdapter.onHeadViewClick(groupPosition, 0); parent.collapseGroup(groupPosition); } // 返回 true 才可以弹回第一行 , 不知道为什么 return true; } @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { super.onMeasure(widthMeasureSpec, heightMeasureSpec); if (mHeaderView != null) { measureChild(mHeaderView, widthMeasureSpec, heightMeasureSpec); mHeaderViewWidth = mHeaderView.getMeasuredWidth(); mHeaderViewHeight = mHeaderView.getMeasuredHeight(); } } private int mOldState = -1; @Override protected void onLayout(boolean changed, int left, int top, int right, int bottom) { super.onLayout(changed, left, top, right, bottom); final long flatPostion = getExpandableListPosition(getFirstVisiblePosition()); final int groupPos = ExpandableListView .getPackedPositionGroup(flatPostion); final int childPos = ExpandableListView .getPackedPositionChild(flatPostion); int state = mAdapter.getTreeHeaderState(groupPos, childPos); if (mHeaderView != null && mAdapter != null && state != mOldState) { mOldState = state; mHeaderView.layout(0, 0, mHeaderViewWidth, mHeaderViewHeight); } configureHeaderView(groupPos, childPos); } public void configureHeaderView(int groupPosition, int childPosition) { if (mHeaderView == null || mAdapter == null || ((ExpandableListAdapter) mAdapter).getGroupCount() == 0) { return; } int state = mAdapter.getTreeHeaderState(groupPosition, childPosition); switch (state) { case IphoneTreeHeaderAdapter.PINNED_HEADER_GONE: { mHeaderViewVisible = false; break; } case IphoneTreeHeaderAdapter.PINNED_HEADER_VISIBLE: { mAdapter.configureTreeHeader(mHeaderView, groupPosition, childPosition, MAX_ALPHA); if (mHeaderView.getTop() != 0) { mHeaderView.layout(0, 0, mHeaderViewWidth, mHeaderViewHeight); } mHeaderViewVisible = true; break; } case IphoneTreeHeaderAdapter.PINNED_HEADER_PUSHED_UP: { View firstView = getChildAt(0); int bottom = firstView.getBottom(); // intitemHeight = firstView.getHeight(); int headerHeight = mHeaderView.getHeight(); int y; int alpha; if (bottom < headerHeight) { y = (bottom - headerHeight); alpha = MAX_ALPHA * (headerHeight + y) / headerHeight; } else { y = 0; alpha = MAX_ALPHA; } mAdapter.configureTreeHeader(mHeaderView, groupPosition, childPosition, alpha); if (mHeaderView.getTop() != y) { mHeaderView.layout(0, y, mHeaderViewWidth, mHeaderViewHeight + y); } mHeaderViewVisible = true; break; } } } @Override /** * 列表界面更新时调用该方法(如滚动时) */ protected void dispatchDraw(Canvas canvas) { super.dispatchDraw(canvas); if (mHeaderViewVisible) { // 分组栏是直接绘制到界面中,而不是加入到ViewGroup中 drawChild(canvas, mHeaderView, getDrawingTime()); } } @Override public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) { final long flatPos = getExpandableListPosition(firstVisibleItem); int groupPosition = ExpandableListView.getPackedPositionGroup(flatPos); int childPosition = ExpandableListView.getPackedPositionChild(flatPos); configureHeaderView(groupPosition, childPosition); } @Override public void onScrollStateChanged(AbsListView view, int scrollState) { } }
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