自动加载更多的listView

package com.supermap.testdemo;

import android.content.Context;
import android.util.AttributeSet;
import android.view.Gravity;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.TextView;

/**
 * Created by Administrator on 2017/6/9 0009.
 */

public class LoadMoreListView extends ListView implements AbsListView.OnScrollListener {

    private LinearLayout footerView;
    private int totalCount;
    private int lastVisibleCount;
    private boolean isLoading = false;
    private ILoadMoreListener iLoadMoreListener;

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

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

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

    private void initView(Context context) {
        /**
         * 设置滚动监听
         */
        setOnScrollListener(this);
        initFootView(context);
    }

    private void initFootView(Context context) {
        footerView = new LinearLayout(context);
        ProgressBar progressBar = new ProgressBar(context);
        LinearLayout.LayoutParams progressBarParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        progressBarParams.setMargins(10, 0, 10, 0);
        progressBar.setLayoutParams(progressBarParams);
        footerView.addView(progressBar);
        TextView textView = new TextView(context);
        textView.setText("loading");
        footerView.addView(textView);
        LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
        layoutParams.gravity = Gravity.CENTER;
        textView.setLayoutParams(layoutParams);
        addFooterView(footerView);
    }

    /**
     * 滚动监听
     *
     * @param view
     * @param scrollState
     */
    @Override
    public void onScrollStateChanged(AbsListView view, int scrollState) {
        if (totalCount == lastVisibleCount
                && scrollState == SCROLL_STATE_IDLE) {
            if (!isLoading) {
                footerView.setVisibility(VISIBLE);
                isLoading = true;
                //加载更多
                if (iLoadMoreListener != null) {
                    iLoadMoreListener.loadMore();
                } else {
                    new Throwable("fuck you!");
                }
            }
        }
    }

    @Override
    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
        this.lastVisibleCount = firstVisibleItem + visibleItemCount;
        this.totalCount = totalItemCount;
    }

    public void completeLoadMore() {
        isLoading = false;
        footerView.setVisibility(GONE);
        /**
         * 滚动
         */
        smoothScrollToPosition(lastVisibleCount);
    }

    /**
     * 加载更多接口回调
     *
     * @param iLoadMoreListener
     */
    public void setLoadMoreListener(ILoadMoreListener iLoadMoreListener) {
        this.iLoadMoreListener = iLoadMoreListener;
    }

    public interface ILoadMoreListener {
        void loadMore();
    }
}

使用方法：

listView.setLoadMoreListener(new LoadMoreListView.ILoadMoreListener() {
    @Override
    public void loadMore() {
adapter.addData(getMoreList());
        listView.completeLoadMore();
    }});