带有下拉刷新和上拉加载的的ExpandableListView
来源：互联网 发布：淘宝交易额多少了 编辑：程序博客网 时间：2024/05/30 05:18
<pre name="code" class="java">package com.redhorse.widget;import android.content.Context;import android.util.AttributeSet;import android.view.MotionEvent;import android.view.View;import android.view.ViewTreeObserver;import android.view.animation.DecelerateInterpolator;import android.widget.AbsListView;import android.widget.ExpandableListView;import android.widget.ListAdapter;import android.widget.RelativeLayout;import android.widget.Scroller;import android.widget.TextView;/** * Created by Administrator on 2016/5/16. */public class XExpandableListView extends ExpandableListView implements AbsListView.OnScrollListener { private static final int ANIMATION_DURATION = 100; 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 TextView mHeaderLastTimeTextView; 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 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 defStyleAttr) { super(context, attrs, defStyleAttr); initWithContext(context); } @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); } } @Override public void setOnScrollListener(OnScrollListener l) { mScrollListener = l; } public void setXListViewListener(IXListViewListener l) { mListViewListener = l; }// feature. public interface OnXScrollListener extends OnScrollListener { public void onXScrolling(View view); } /** * implements this interface to get refresh/load more event. */ 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); mHeaderLastTimeTextView = (TextView) mHeaderView .findViewById(R.id.xlistview_header_last_time); if (mHeaderTimeView.getText().equals("") || mHeaderTimeView.getText().equals(null)) { mHeaderLastTimeTextView.setVisibility(View.GONE); mHeaderTimeView.setVisibility(View.GONE); } addHeaderView(mHeaderView); // init footer view mFooterView = new XListViewFooter(context); addFooterView(mFooterView); // init header height mHeaderView.getViewTreeObserver().addOnGlobalLayoutListener( new ViewTreeObserver.OnGlobalLayoutListener() { @SuppressWarnings("deprecation") @Override public void onGlobalLayout() { mHeaderViewHeight = mHeaderViewContent.getHeight(); getViewTreeObserver() .removeGlobalOnLayoutListener(this); } }); } @Override public void setAdapter(ListAdapter adapter) { if (mIsFooterReady == false) { mIsFooterReady = true; addFooterView(mFooterView); } super.setAdapter(adapter); } public View getFooterView() { return mFooterView; } public void setPullRefreshEnable(boolean enable) { mEnablePullRefresh = enable; if (!mEnablePullRefresh) { // disable, hide the content mHeaderViewContent.setVisibility(View.INVISIBLE); } else { mHeaderViewContent.setVisibility(View.VISIBLE); } } 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(); } }); } } public void stopRefresh() { if (mPullRefreshing == true) { mPullRefreshing = false; resetHeaderHeight(); } } public void stopLoadMore() { if (mPullLoading == true) { mPullLoading = false; mFooterView.setState(XListViewFooter.STATE_NORMAL); } } public void setRefreshTime(String time) { mHeaderTimeView.setText(time); mHeaderLastTimeTextView.setVisibility(View.VISIBLE); mHeaderTimeView.setVisibility(View.VISIBLE); } private void updateHeaderHeight(float delta) { mHeaderView.setVisiableHeight((int) delta + mHeaderView.getVisiableHeight()); if (mEnablePullRefresh && !mPullRefreshing) { if (mHeaderView.getVisiableHeight() > mHeaderViewHeight) { mHeaderView.setState(XListViewHeader.STATE_READY); } else { mHeaderView.setState(XListViewHeader.STATE_NORMAL); } } setSelection(0); // scroll to top each time } 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(); } private void invokeOnScrolling() { if (mScrollListener instanceof OnXScrollListener) { OnXScrollListener l = (OnXScrollListener) mScrollListener; l.onXScrolling(this); } } public interface IXListViewListener { void onRefresh(); void onLoadMore(); }}里面提供了 onRefresh 和onLoadMore 两个方法
refresh.setAdapter(adapter);refresh.setVisibility(View.VISIBLE);refresh.setRefreshTime(xxxxxxx);refresh.stopRefresh();refresh.stopLoadMore();refresh.setVisbility(View.INVISIBLE);
上面是一些设置 在需要的时候调用就好
刷新成功后调用stopRefresh()和stopLoadMore()就行
刷新失败 比如没有网络的时候调用setVisibility(View.INVISIBLE)
里面的Footer的Java类
import android.content.Context;import android.util.AttributeSet;import android.view.LayoutInflater;import android.view.View;import android.widget.LinearLayout;import android.widget.RelativeLayout;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 RelativeLayout mContentView;private LinearLayout mLoadLayout;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);mLoadLayout.setVisibility(View.INVISIBLE);if (state == STATE_READY){mHintView.setVisibility(View.VISIBLE);mHintView.setText(R.string.xlistview_footer_hint_ready);}else if (state == STATE_LOADING){mLoadLayout.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;}public void normal(){mHintView.setVisibility(View.VISIBLE);mLoadLayout.setVisibility(View.GONE);}public void loading(){mHintView.setVisibility(View.GONE);mLoadLayout.setVisibility(View.VISIBLE);}public void hide(){LinearLayout.LayoutParams lp = (LinearLayout.LayoutParams) mContentView.getLayoutParams();lp.height = 0;mContentView.setLayoutParams(lp);}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.fff_xlistview_footer, null);addView(moreView);moreView.setLayoutParams(new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.WRAP_CONTENT));mContentView = (RelativeLayout) moreView.findViewById(R.id.xlistview_footer_content);mLoadLayout = (LinearLayout) moreView.findViewById(R.id.xlistview_footer_load);mHintView = (TextView) moreView.findViewById(R.id.xlistview_footer_hint_textview);}}footer的layout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" > <RelativeLayout android:id="@+id/xlistview_footer_content" android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="center"><LinearLayout android:id="@+id/xlistview_footer_load" android:layout_width="wrap_content" android:layout_height="fill_parent" android:gravity="center" android:orientation="horizontal" android:layout_centerInParent="true" android:visibility="invisible"> <ProgressBar android:id="@+id/xlistview_footer_progressbar" android:layout_width="wrap_content" android:layout_height="wrap_content" /> <TextView android:id="@+id/xlistview_footer_load_text" android:layout_width="wrap_content" android:layout_height="wrap_content" android:gravity="center" android:text="@string/xlistview_footer_hint_loading" /></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:visibility="invisible" /> </RelativeLayout></LinearLayout>
然后是header的Java
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{public final static int STATE_NORMAL = 0;public final static int STATE_READY = 1;public final static int STATE_REFRESHING = 2;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 XListViewHeader(Context context){super(context);initView(context);}public XListViewHeader(Context context, AttributeSet attrs){super(context, attrs);initView(context);}private void initView(Context context){LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, 0);mContainer = (LinearLayout) LayoutInflater.from(context).inflate(R.layout.fff_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){mArrowImageView.clearAnimation();mArrowImageView.setVisibility(View.INVISIBLE);mProgressBar.setVisibility(View.VISIBLE);}else{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();}}最后是header的layout
<?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="center" > <RelativeLayout android:id="@+id/xlistview_header_content" android:layout_width="fill_parent" android:layout_height="60dp" > <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" android:gravity="center" android:orientation="vertical" android:id="@+id/xlistview_header_text"> <TextView android:id="@+id/xlistview_header_hint_textview" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/xlistview_header_hint_normal" /> <LinearLayout android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="3dp" > <TextView android:id="@+id/xlistview_header_last_time" android:layout_width="wrap_content" android:layout_height="wrap_content" 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:textSize="12sp" /> </LinearLayout> </LinearLayout> <ImageView android:id="@+id/xlistview_header_arrow" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@id/xlistview_header_text" android:layout_centerVertical="true" android:layout_marginLeft="-35dp" android:src="@mipmap/xlistview_arrow" /> <ProgressBar android:id="@+id/xlistview_header_progressbar" android:layout_width="30dp" android:layout_height="30dp" android:layout_alignLeft="@id/xlistview_header_text" android:layout_centerVertical="true" android:layout_marginLeft="-40dp" android:visibility="invisible" /> </RelativeLayout></LinearLayout>
最后还应该有点Value中的值 自行修改就好
1 0
- 带有下拉刷新和上拉加载的的ExpandableListView
- 带有上拉加载下拉刷新和可滑动删除功能的ListView的简单实现
- ListView的上拉加载和下拉刷新的使用
- 下拉刷新和上拉加载的原理
- tableView下拉刷新和上拉加载的原理
- 下拉刷新和上拉加载的原理
- iOS----下拉刷新和上拉加载的原理
- 能够下拉刷新和上拉加载的瀑布流
- 下拉刷新和上拉加载的ListView-MutilListView
- 关于ListView的下拉刷新和上拉加载功能
- listview的下拉刷新和上拉加载更多
- listview的上拉加载更多和下拉刷新
- 原生的上拉刷新 SwipeRefreshLayout和下拉加载
- tableView的上拉加载和下拉刷新
- UICollectionView的高级使用和上拉加载下拉刷新
- ListView的下拉刷新和上拉加载
- 自定义控件-下拉刷新和上拉加载的listView
- 实现TableView的上拉加载和下拉刷新
- genymotion创建虚拟设备提示failed to deploy virtual device - 爱程序网
- 贝叶斯法分类和最大似然
- HDU 2191 悼念512汶川大地震遇难同胞——珍惜现在，感恩生活 多重背包
- 动态库的链接和链接选项-L，-rpath-link，-rpath
- Android都到了4GB 为什么卡顿还存在?
- 带有下拉刷新和上拉加载的的ExpandableListView
- Java集合---ConcurrentHashMap原理分析
- chrome在linux下的常用命令
- 第十三章 UIGestureRecognizer and UIMenuController翻译
- 欢迎使用CSDN-markdown编辑器
- SDI编码器
- 如何通过.htaccess实现301跳转
- EL表达式jsp页面double小数点后保留两位
- JavaScript 闭包深入理解(closure)
