ListView显示最后一条数据之后上拉加载更多

通过实现setOnLoadMoreListener接口加载更多

public class LoadMoreListView extends ListView implements AbsListView.OnScrollListener {

    private View mFootView;
    private int mTotalItemCount;
    private OnLoadMoreListener mLoadMoreListener;
    private boolean mIsLoading = false;

    public LoadMoreListView(Context context) {
        super(context);
        init(context);
    }

    public LoadMoreListView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init(context);
    }

    public LoadMoreListView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(context);
    }

    private void init(Context context) {
        mFootView = LayoutInflater.from(context).inflate(R.layout.footview, null);
        setOnScrollListener(this);
    }

    
    @Override
    public void onScrollStateChanged(AbsListView listView, int scrollState) {
        // 滑到底部后自动加载更多，判断listview已经停止滚动并且最后可视的条目等于数据源的总条目
        int lastVisibleIndex = listView.getLastVisiblePosition();
        if (!mIsLoading && scrollState == OnScrollListener.SCROLL_STATE_IDLE
                && lastVisibleIndex == mTotalItemCount - 1) {
            mIsLoading = true;
            addFooterView(mFootView);
            if (mLoadMoreListener != null) {
                mLoadMoreListener.onLoadMore();
            }
        }
    }

    @Override
    public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
        mTotalItemCount = totalItemCount;
    }

    public void setOnLoadMoreListener(OnLoadMoreListener listener) {
        mLoadMoreListener = listener;
    }

    public void setLoadCompleted() {
        mIsLoading = false;
        removeFooterView(mFootView);
    }

    public interface OnLoadMoreListener {
        void onLoadMore();
    }

    private static Field mFlingEndField = null;
    private static Method mFlingEndMethod = null;

    static {
        try {
            mFlingEndField = AbsListView.class.getDeclaredField("mFlingRunnable");
            mFlingEndField.setAccessible(true);
            mFlingEndMethod = mFlingEndField.getType().getDeclaredMethod("endFling");
            mFlingEndMethod.setAccessible(true);
        } catch (Exception e) {
            mFlingEndMethod = null;
        }
    }

    /**
     * listView停止滑翔
     * @param list
     */
    public void stop(ListView list) {
        if (mFlingEndMethod != null) {
            try {
                mFlingEndMethod.invoke(mFlingEndField.get(list));
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

}

底部布局 R.layout.footview

<?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="match_parent"
              android:background="#dedcdc"
              android:gravity="center"
              android:orientation="horizontal"
              android:padding="15dp">

    <ProgressBar
        style="@android:style/Widget.ProgressBar.Small"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:text="正在加载..."/>
</LinearLayout>