android 支持上拉加载，下拉刷新的列表控件SwipeRefreshLayout的二次封装

上拉加载，下拉刷新的列表控件，大家一定都封装过，或者使用过

源代码，我会在最后贴出来

这篇代码主要是为了解决两个问题

1.滑动冲突得问题

2.listview无数据时，无数据布局的展示问题

下方列出的代码，主要就是为了解决listview与父布局之间的滑动冲突

mListView.setOnScrollListener(new AbsListView.OnScrollListener() {
            private boolean mIsEnd = false;

            @Override
            public void onScrollStateChanged(AbsListView view, int scrollState) {
                if (mOnScrollListener != null) {
                    mOnScrollListener.onScrollStateChanged(view, scrollState);
                }
                if (scrollState == SCROLL_STATE_IDLE) {
                    //1:到达底部 2：底部当前可以加载更多 3：顶部不在刷新中状态
                    Log.i("syntapp", mIsEnd + "===" + mLoadMoreStatus + "====" + isRefreshing());
                    if (mIsEnd && mLoadMoreStatus == LoadMoreStatus.CLICK_TO_LOAD && !isRefreshing()) {
                        setLoadMoreStatus(LoadMoreStatus.LOADING);
                        if (mLoadMoreStatus != null) {
                            mOnLoadListener.onLoad(false);
                        }
                    }
                }
            }

            @Override
            public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
                if (mOnScrollListener != null) {
                    mOnScrollListener.onScroll(view, firstVisibleItem, visibleItemCount, totalItemCount);

                }
                mIsEnd = firstVisibleItem + visibleItemCount >= totalItemCount - 1;
                if (mOnMyScrollListener != null) {
                    mOnMyScrollListener.onScrollItem(firstVisibleItem, visibleItemCount, totalItemCount);
                }
            }
        });

        super.setOnRefreshListener(new OnRefreshListener() {
            @Override
            public void onRefresh() {
                if (mLoadMoreStatus != LoadMoreStatus.LOADING) {
                    if (mOnLoadListener != null) {
                        mOnLoadListener.onLoad(true);
//                        mEmptyView.setVisibility(GONE);
                    }
                } else {
                    SimpleListView.super.setRefreshing(false);
                }
            }
        });

那么接下来我们来解决listView的恐怖剧展示问题

//1.我们需要添加一个空布局的显示，这里的activity_no_data可以根据自己的实际需要去设计
mEmptyView = LayoutInflater.from(context).inflate(R.layout.activity_no_data, null);
        mListView = new ListView(context, attrs);

        FrameLayout rl = new FrameLayout(context);
        rl.addView(mEmptyView, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
        rl.addView(mListView, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
        addView(rl);

//2.我们需要解决listview在上拉加载和下拉刷新的触摸事件，让我们想要的的触摸极致点位与代码上的判断重合
mListView.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                if (event.getAction() == MotionEvent.ACTION_MOVE) {

                    if (mListView.getChildAt(0) != null && mListView.getFirstVisiblePosition() == 0 &&
                            mListView.getChildAt(0).getTop() >= 0) {//或者 listView.getChildAt(0).getTop() >= listView.getListPaddingTop())
                        ((ViewGroup) ((ViewGroup) mListView.getParent()).getParent()).setEnabled(true);
                        Log.d("TAG", "reach top!!!");
                    } else {
                        if (mListView.getAdapter().getCount() == 0) {
                            ((ViewGroup) ((ViewGroup) mListView.getParent()).getParent()).setEnabled(true);
                        } else {
                            ((ViewGroup) ((ViewGroup) mListView.getParent()).getParent()).setEnabled(false);
                        }
                        Log.d("TAG", "not reach top!!!");
                    }
                }

                return false;
            }
        });

接下来，我贴出来全部的代码段，当然了，这里面还是有很多无用的代码段，根据自己的实际需求去增删吧

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.database.DataSetObserver;
import android.os.Parcelable;
import android.support.v4.widget.SwipeRefreshLayout;
import android.util.AttributeSet;
import android.util.Log;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewConfiguration;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;

import com.avicsafety.lib.R;
public class SimpleListView extends SwipeRefreshLayout {
    private ListView mListView;
    private LoadMoreStatus mLoadMoreStatus = LoadMoreStatus.CLICK_TO_LOAD;
    private OnLoadListener mOnLoadListener;
    private OnMyScrollListener mOnMyScrollListener;
    private TextView mLoadMoreView;
    private AbsListView.OnScrollListener mOnScrollListener;
    private View mEmptyView;
    private ListAdapter mAdapter;
private float startY;
    private float startX;
    // 记录viewPager是否拖拽的标记
    private boolean mIsVpDragger;
    private int mTouchSlop;
/**
     * 加载更多状态
     */
    public enum LoadMoreStatus {
        /**
         * 点击加载更多
         */
        CLICK_TO_LOAD,
        /**
         * 正在加载
         */
        LOADING,
        /**
         * 没有更多内容了
         */
        LOADED_ALL
    }
/**
     * 加载监听器
     */
    public interface OnLoadListener {
        /**
         * 下来刷新或者加载更多时触发该回调
         *
         * @param isRefresh true为下拉刷新 false为加载更多
         */
        void onLoad(boolean isRefresh);
    }
public interface OnMyScrollListener {
        void onScrollItem(int firstVisibleItem, int visibleItemCount, int totalItemCount);
    }
public SimpleListView(Context context) {
        super(context);
        init(context, null);
        mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop();
    }
public SimpleListView(Context context, AttributeSet attrs) {
        super(context, attrs);
        init(context, attrs);
    }
private void init(Context context, AttributeSet attrs) {
        mEmptyView = LayoutInflater.from(context).inflate(R.layout.activity_no_data, null);
        emptyView = mEmptyView;
        mListView = new ListView(context, attrs);
FrameLayout rl = new FrameLayout(context);
        rl.addView(mEmptyView, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
        rl.addView(mListView, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT