android ExpandableListView的下拉刷新实现

该控件的修改时根据PullToRefreshList的机制修改

下面是对ExpandableListView的扩展

package com.up91.gwy.view.componet; 

import java.lang.reflect.InvocationTargetException; 

import java.lang.reflect.Method; 

import com.up91.gwy.R; 

import android.content.Context; 

import android.util.AttributeSet; 

import android.view.LayoutInflater; 

import android.view.MotionEvent; 

import android.view.View; 

import android.view.ViewGroup; 

import android.view.animation.LinearInterpolator; 

import android.view.animation.RotateAnimation; 

import android.widget.AbsListView; 

import android.widget.ExpandableListView; 

import android.widget.AbsListView.OnScrollListener; 

import android.widget.ImageView; 

import android.widget.ListAdapter; 

import android.widget.ProgressBar; 

import android.widget.RelativeLayout; 

import android.widget.TextView; 

public class PullToRefreshExpandableListView 

        extends ExpandableListView 

        implements 

            OnScrollListener { 

    private static final String TAG = "PullToRefreshExpandableListView"; 

    private static final int TAP_TO_REFRESH = 1; 

    private static final int PULL_TO_REFRESH = 2; 

    private static final int RELEASE_TO_REFRESH = 3; 

    private static final int REFRESHING = 4; 

    private OnRefreshListener mOnRefreshListener; 

    private OnScrollListener mOnScrollListener; 

    private LayoutInflater  mInflater; 

    private RelativeLayout  mRefreshView; 

    private TextView mRefreshViewText; 

    private ImageView mRefreshViewImage; 

    private ProgressBar mRefreshViewProgress; 

    private TextView   mRefreshViewLastUpdated; 

    private int mCurrentScrollState; 

    private int mRefreshState; 

    private RotateAnimation mFlipAnimation; 

    private RotateAnimation mReverseFlipAnimation; 

    private int mRefreshViewHeight; 

    private int mRefreshOriginalTopPadding; 

    private int mLastMotionY; 

    private boolean isInInitState;