下拉刷新+加载更多的ListView(直接拿来用)

ListView Api bixu 好好看看

mNewsAdapter.notifyDataSetChanged();//刷新ListView

自定义的RefreashListView

package com.itguang.dell_pc.myapplication.view;import android.content.Context;import android.util.AttributeSet;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 com.itguang.dell_pc.myapplication.R;import java.text.SimpleDateFormat;import java.util.Date;/** * 作者: 小光哥 on 2016/7/7. * 邮箱: [e-mail] * 修订历史: * 描述: * 　　　　　　　　┏┓　　　┏┓ * 　　　　　　　┏┛┻━━━┛┻┓━━━━┻┓ * 　　　　　　　┃　　　　　　　┃ * 　　　　　　　┃　　　━　　　┃ * 　　　　　　　┃　＞　　　＜　┃ * 　　　　　　　┃　　　　　　　┃ * 　　　　　　　┃...　⌒　...　┃ * 　　　　　　　┃　　　　　　　┃ * 　　　　　　　┗━┓　　　┏━┛ * 　　　　　　　　　┃　　　┃　Code is far away from bug with the animal protecting * 　　　　　　　　　┃　史　┃   神兽保佑,代码无bug * 　　　　　　　　　┃　诗　┃ * 　　　　　　　　　┃　之　┃ * 　　　　　　　　　┃　宠　┃ * 　　　　　　　　　┃　　　┃ * 　　　　　　　　　┃　　　┗━━━┓ * 　　　　　　　　　┃BUG天敌　　　┣┓┣┓┣┓┣┓┣┓ * 　　　　　　　　　┃　　　　　　　┏┛ * 　　　　　　　　　┗┓┓┏━┳┓┏┛ * 　　　　　　　　　　┃┫┫　┃┫┫ * 　　　　　　　　　　┗┻┛　┗┻┛ */public class RefreshListView extends ListView implements AbsListView.OnScrollListener {    private static final int STATE_PULL_REFRESH = 0;// 下拉刷新    private static final int STATE_RELEASE_REFRESH = 1;// 松开刷新    private static final int STATE_REFRESHING = 2;// 正在刷新    private int mCurrrentState = STATE_PULL_REFRESH;// 当前状态    private View mHeaderView;    private TextView tvTitle;    private TextView tvTime;    private ProgressBar pbProgress;    private ImageView ivArrow;    private RotateAnimation animUp;    private RotateAnimation animDown;    private int startY = -1;// 滑动起点的y坐标    private int endY;    private int measuredHeight;    private int mFooterViewHeight;    private View footerView;    public RefreshListView(Context context) {        super(context);        initHeaderView();        initFooterView();    }    public RefreshListView(Context context, AttributeSet attrs) {        super(context, attrs);        initHeaderView();        initFooterView();    }    public RefreshListView(Context context, AttributeSet attrs, int defStyleAttr) {        super(context, attrs, defStyleAttr);        initHeaderView();        initFooterView();    }    /**     * 初始化头布局     */    private void initHeaderView() {        mHeaderView = View.inflate(getContext(), R.layout.refeeash_header, null);        this.addHeaderView(mHeaderView);        tvTitle = (TextView) mHeaderView.findViewById(R.id.tv_title);        tvTime = (TextView) mHeaderView.findViewById(R.id.tv_time);        pbProgress = (ProgressBar) mHeaderView.findViewById(R.id.pb_progress);        ivArrow = (ImageView) mHeaderView.findViewById(R.id.iv_arr);        mHeaderView.measure(0, 0);//先测量再拿到它的高度        measuredHeight = mHeaderView.getMeasuredHeight();        mHeaderView.setPadding(0, -measuredHeight, 0, 0);        initArrowAnim();        tvTime.setText("最后刷新时间:" + getCurrentTime());    }    /**     * 初始化脚布局     */    public void initFooterView() {        footerView = View.inflate(getContext(), R.layout.refreash_listview_footer, null);        this.addFooterView(footerView);        footerView.measure(0, 0);        mFooterViewHeight = footerView.getMeasuredHeight();        footerView.setPadding(0, -mFooterViewHeight, 0, 0);//默认隐藏脚布局        this.setOnScrollListener(this);    }    private boolean isLoadingMOre;    @Override    public void onScrollStateChanged(AbsListView view, int scrollState) {        if (scrollState == SCROLL_STATE_FLING || scrollState == SCROLL_STATE_IDLE) {            if (getLastVisiblePosition() == getCount() - 1 && !isLoadingMOre) {//滑倒最后                System.out.println("到底了......");                footerView.setPadding(0, 0, 0, 0);                setSelection(getCount() - 1);//改变ListView的显示位置                isLoadingMOre = true;                if (mListener != null) {                    mListener.onLoadMore();                }            }        }    }    @Override    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {    }    @Override    public boolean onTouchEvent(MotionEvent ev) {        switch (ev.getAction()) {            case MotionEvent.ACTION_DOWN:                startY = (int) ev.getRawY();                break;            case MotionEvent.ACTION_MOVE:                if (startY == -1) {//有时候不会响应 MotionEvent.ACTION_DOWN 事件,这是要重新获取startY坐标                    startY = (int) ev.getRawY();                }                //当正在刷新的时候,跳出循环,不再执行下面逻辑                if (mCurrrentState == STATE_RELEASE_REFRESH) {                    break;                }                endY = (int) ev.getRawY();                int dy = endY - startY;//计算手指滑动距离                if (dy > 0 && getFirstVisiblePosition() == 0) {// 只有下拉并且当前是第一个item,才允许下拉                    int padding = dy - measuredHeight;//计算padding                    mHeaderView.setPadding(0, padding, 0, 0);//设置当前padding                    if (padding > 0 && mCurrrentState != STATE_RELEASE_REFRESH) {                        mCurrrentState = STATE_RELEASE_REFRESH;                        refreshState();                    } else if (padding < 0 && mCurrrentState != STATE_PULL_REFRESH) {// 改为下拉刷新状态                        mCurrrentState = STATE_PULL_REFRESH;                        refreshState();                    }                    return true;                }                break;            case MotionEvent.ACTION_UP:                startY = -1;//手指抬起重置                //当状态是松开刷新时抬起了手指,正在刷新                if (mCurrrentState == STATE_RELEASE_REFRESH) {                    mCurrrentState = STATE_REFRESHING;// 正在刷新                    mHeaderView.setPadding(0, 0, 0, 0);// 显示                    refreshState();                } else if (mCurrrentState == STATE_PULL_REFRESH) {                    mHeaderView.setPadding(0, -measuredHeight, 0, 0);// 隐藏                }                break;            default:                break;        }        return super.onTouchEvent(ev);    }    private String getCurrentTime() {        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");        String currentTime = format.format(new Date());        return currentTime;    }    private void initArrowAnim() {        //初始化箭头动画        animUp = new RotateAnimation(0, -180, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);        animUp.setDuration(500);        animUp.setFillAfter(true);//保持状态        //箭头向下动画        animDown = new RotateAnimation(-180, 0, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f);        animDown.setDuration(500);        animDown.setFillAfter(true);    }    /**     * 刷新下拉控件的布局     */    private void refreshState() {        switch (mCurrrentState) {            case STATE_PULL_REFRESH:                tvTitle.setText("下拉刷新");                ivArrow.setVisibility(View.VISIBLE);                pbProgress.setVisibility(View.INVISIBLE);                ivArrow.startAnimation(animDown);                break;            case STATE_RELEASE_REFRESH:                tvTitle.setText("松开刷新");                ivArrow.setVisibility(View.VISIBLE);                pbProgress.setVisibility(View.INVISIBLE);                ivArrow.startAnimation(animUp);                break;            case STATE_REFRESHING:                tvTitle.setText("正在刷新...");                ivArrow.clearAnimation();// 必须先清除动画,才能隐藏                ivArrow.setVisibility(View.INVISIBLE);                pbProgress.setVisibility(View.VISIBLE);                if (mListener != null) {                    mListener.onRefreash();                }                break;            default:                break;        }    }    OnRefreashListener mListener;    public void setOnRefreashListener(OnRefreashListener listener) {        mListener = listener;    }    public interface OnRefreashListener {        void onRefreash();        void onLoadMore();    }    /**     * 收起下拉刷新的控件     */    public void onRefreashComplete() {        if (isLoadingMOre) {            footerView.setPadding(0, -mFooterViewHeight, 0, 0);//隐藏脚布局            isLoadingMOre = false;        } else {            mCurrrentState = STATE_PULL_REFRESH;            tvTitle.setText("下拉刷新");            ivArrow.setVisibility(View.VISIBLE);            pbProgress.setVisibility(View.INVISIBLE);            mHeaderView.setPadding(0, -measuredHeight, 0, 0);//隐藏        }    }    public void noFooterView() {        footerView.setPadding(0, mFooterViewHeight, 0, 0);//隐藏脚布局    }}

代码中引用RefreashListView

package com.itguang.dell_pc.myapplication.base;import android.app.Activity;import android.support.v4.view.PagerAdapter;import android.support.v4.view.ViewPager;import android.text.TextUtils;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;import android.widget.Toast;import com.google.gson.Gson;import com.itguang.dell_pc.myapplication.R;import com.itguang.dell_pc.myapplication.domain.NewsData;import com.itguang.dell_pc.myapplication.domain.TabData;import com.itguang.dell_pc.myapplication.globe.GlobeContents;import com.itguang.dell_pc.myapplication.view.RefreshListView;import com.lidroid.xutils.BitmapUtils;import com.lidroid.xutils.HttpUtils;import com.lidroid.xutils.ViewUtils;import com.lidroid.xutils.exception.HttpException;import com.lidroid.xutils.http.ResponseInfo;import com.lidroid.xutils.http.callback.RequestCallBack;import com.lidroid.xutils.http.client.HttpRequest;import com.lidroid.xutils.view.annotation.ViewInject;import com.viewpagerindicator.CirclePageIndicator;import java.util.ArrayList;/** * 作者: 小光哥 on 2016/4/22. * 邮箱: [e-mail] * 修订历史: * 描述: * 　　　　　　　　┏┓　　　┏┓ * 　　　　　　　┏┛┻━━━┛┻┓━━━━┻┓ * 　　　　　　　┃　　　　　　　┃ * 　　　　　　　┃　　　━　　　┃ * 　　　　　　　┃　＞　　　＜　┃ * 　　　　　　　┃　　　　　　　┃ * 　　　　　　　┃...　⌒　...　┃ * 　　　　　　　┃　　　　　　　┃ * 　　　　　　　┗━┓　　　┏━┛ * 　　　　　　　　　┃　　　┃　Code is far away from bug with the animal protecting * 　　　　　　　　　┃　史　┃   神兽保佑,代码无bug * 　　　　　　　　　┃　诗　┃ * 　　　　　　　　　┃　之　┃ * 　　　　　　　　　┃　宠　┃ * 　　　　　　　　　┃　　　┃ * 　　　　　　　　　┃　　　┗━━━┓ * 　　　　　　　　　┃BUG天敌　　　┣┓┣┓┣┓┣┓┣┓ * 　　　　　　　　　┃　　　　　　　┏┛ * 　　　　　　　　　┗┓┓┏━┳┓┏┛ * 　　　　　　　　　　┃┫┫　┃┫┫ * 　　　　　　　　　　┗┻┛　┗┻┛ *//** * 也签详情页 */public class TabDetailPager extends BaseMenuDetailPager implements ViewPager.OnPageChangeListener {    /**     * @param activity     * @param newsTabData     */    NewsData.NewsTabData mTabdata;    private String mUrl;    private TabData mTabDetailData;    @ViewInject(R.id.vp_news)    private ViewPager mViewPager;    @ViewInject(R.id.lv_newslist)    private RefreshListView newsListView;//新闻列表    @ViewInject(R.id.tv_title)    private TextView tvTitle;//新闻标题    @ViewInject(R.id.indicator)    private CirclePageIndicator indicator;//头条新闻指示器    private ArrayList<TabData.TopNewsData> mTopNewsList;//新闻数据集合    private int[] images;    private ArrayList<TabData.TabNewsData> mNewsList;//新闻数据集合    private String mMoreUrl;    private NewsAdapter mNewsAdapter;    public TabDetailPager(Activity activity, NewsData.NewsTabData newsTabData) {        super(activity);        mTabdata = newsTabData;        mUrl = GlobeContents.SERVER_URL + mTabdata.url;    }    @Override    public View initViews() {        images = new int[]{R.drawable.topnews1, R.drawable.topnews21, R.drawable.topnews31, R.drawable.topimage};        View view = View.inflate(mActivity, R.layout.tab_detail_pager, null);        View headerView = View.inflate(mActivity, R.layout.list_header_topnews, null);//加载头布局//        TextView tvTitle = (TextView) view.findViewById(R.id.tv_title);        //事件注入        ViewUtils.inject(this, view);        ViewUtils.inject(this, headerView);        mViewPager.addOnPageChangeListener(this);        //将肥头条新闻以头布局形式加载到listView中        newsListView.addHeaderView(headerView);        //设置下拉刷新监听        newsListView.setOnRefreashListener(new RefreshListView.OnRefreashListener() {            @Override            public void onRefreash() {                getDataFromServer();            }            @Override            public void onLoadMore() {                if (mMoreUrl != null) {                    getMoreDataFromServer();                } else {                    Toast.makeText(mActivity, "没有更多数据了", Toast.LENGTH_SHORT).show();                    newsListView.onRefreashComplete();//                    newsListView.noFooterView();                }            }        });        return view;    }    @Override    public void initData() {        getDataFromServer();//这是一个异步的,    }    private void getDataFromServer() {        HttpUtils utils = new HttpUtils();        utils.send(HttpRequest.HttpMethod.GET, mUrl, new RequestCallBack<String>() {            @Override            public void onSuccess(ResponseInfo<String> responseInfo) {                String result = (String) responseInfo.result;//                System.out.println("页签详情页返回结果:+++++++++++++++++++" + result);                praseData(result, false);                newsListView.onRefreashComplete();            }            @Override            public void onFailure(HttpException e, String s) {                Toast.makeText(mActivity, "获取Tabdetaildata失败!", Toast.LENGTH_SHORT).show();//                error.printStackTrace();            }        });    }    /**     * 加载下一页数据     */    private void getMoreDataFromServer() {        HttpUtils utils = new HttpUtils();        utils.send(HttpRequest.HttpMethod.GET, mMoreUrl, new RequestCallBack<String>() {            @Override            public void onSuccess(ResponseInfo<String> responseInfo) {                String result = (String) responseInfo.result;//                System.out.println("页签详情页返回结果:+++++++++++++++++++" + result);                praseData(result, true);                newsListView.onRefreashComplete();            }            @Override            public void onFailure(HttpException e, String s) {                Toast.makeText(mActivity, "获取Tabdetaildata失败!", Toast.LENGTH_SHORT).show();//                error.printStackTrace();            }        });    }    /**     * 把json字符串解析成为json对象     *     * @param result 要解析的的json字符串     */    private void praseData(String result, boolean isLoadMore) {        Gson gson = new Gson();        mTabDetailData = gson.fromJson(result, TabData.class);//返回TabData对象        System.out.println("页签详情页:+++++++++++++++++++++" + mTabdata);        //处理更多页面的逻辑        final String more = mTabDetailData.data.more;        if (!TextUtils.isEmpty(more)) {            mMoreUrl = GlobeContents.SERVER_URL + more;        } else {            mMoreUrl = null;        }        if (!isLoadMore) {            mTopNewsList = mTabDetailData.data.topnews;            mNewsList = mTabDetailData.data.news;            if (mTopNewsList != null) {                mViewPager.setAdapter(new TopNewsAdapter());                indicator.setOnPageChangeListener(this);                indicator.setViewPager(mViewPager);//在设置完适配器后,在设置指示器                indicator.setSnap(true);//设置快照显示                indicator.onPageSelected(0);//indicator会自作聪明,离开时会记录当前位置                tvTitle.setText(mTopNewsList.get(0).title);            }            mNewsAdapter = new NewsAdapter();            //填充新闻列表            if (mNewsList != null) {                newsListView.setAdapter(mNewsAdapter);            }        } else {//如果是加载下一页,需要将数据追加给原来的集合            ArrayList<TabData.TabNewsData> news = mTabDetailData.data.news;            mNewsList.addAll(news);            mNewsAdapter.notifyDataSetChanged();//刷新ListView        }    }    @Override    public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {    }    @Override    public void onPageSelected(int position) {//更新头条新闻标题        TabData.TopNewsData topNewsData = mTopNewsList.get(position);        tvTitle.setText(topNewsData.title);    }    @Override    public void onPageScrollStateChanged(int state) {    }    /**     * ListView适配器     */    class NewsAdapter extends BaseAdapter {        private final BitmapUtils utils;        NewsAdapter() {            utils = new BitmapUtils(mActivity);            utils.configDefaultLoadingImage(R.drawable.pic_item_list_default);        }        @Override        public int getCount() {            return mNewsList.size();        }        @Override        public Object getItem(int position) {            return mNewsList.get(position);        }        @Override        public long getItemId(int position) {            return position;        }        @Override        public View getView(int position, View convertView, ViewGroup parent) {            ViewHolder holder;            if (convertView == null) {                convertView = View.inflate(mActivity, R.layout.list_news_item, null);                holder = new ViewHolder();                holder.ivPic = (ImageView) convertView.findViewById(R.id.iv_pic);                holder.tvTitle = (TextView) convertView.findViewById(R.id.tv_title);                holder.tvDate = (TextView) convertView.findViewById(R.id.tv_date);                convertView.setTag(holder);            } else {                holder = (ViewHolder) convertView.getTag();            }            TabData.TabNewsData item = (TabData.TabNewsData) getItem(position);            holder.tvTitle.setText(item.title);            holder.tvDate.setText(item.pubdate);            utils.display(holder.ivPic, item.listimage);            return convertView;        }    }    static class ViewHolder {        public TextView tvTitle;        public TextView tvDate;        public ImageView ivPic;    }    /**     * Viewpager适配器     */    class TopNewsAdapter extends PagerAdapter {        private BitmapUtils bitmapUtils;        TopNewsAdapter() {            bitmapUtils = new BitmapUtils(mActivity);            bitmapUtils.configDefaultLoadingImage(R.drawable.topnews_item_default);//设置默认图片        }        @Override        public int getCount() {            return mTabDetailData.data.topnews.size();        }        @Override        public boolean isViewFromObject(View view, Object object) {            return view == object;        }        @Override        public Object instantiateItem(ViewGroup container, int position) {            ImageView imageView = new ImageView(mActivity);            imageView.setImageResource(images[position]);            imageView.setScaleType(ImageView.ScaleType.FIT_XY);//基于控件大小填充图片//            TabData.TopNewsData topNewsData = mTopNewsList.get(position);//            bitmapUtils.display(imageView,mTabDetailData.data.topnews.get(position).url);            container.addView(imageView);            return imageView;        }        @Override        public void destroyItem(ViewGroup container, int position, Object object) {            container.removeView((View) object);        }    }}