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低灵敏度SwipeRefreshLayout

package com.ss.android.homed.pm_home.decorate.view;import android.content.Context;import android.support.v4.widget.SwipeRefreshLayout;import android.util.AttributeSet;import android.view.MotionEvent;/** * 低灵敏度SwipeRefreshLayout */public class MySwipeRefreshLayout extends SwipeRefreshLayout {
       private float mInitialDownY;    private int mTouchSlop = 300;    public MySwipeRefreshLayout(Context context) {
           this(context, null);    }    public MySwipeRefreshLayout(Context context, AttributeSet attrs) {
           super(context, attrs);    }    @Override    public boolean onInterceptTouchEvent(MotionEvent ev) {
           final int action = ev.getAction();        switch (action) {
               case MotionEvent.ACTION_DOWN:                mInitialDownY = ev.getY();                break;            case MotionEvent.ACTION_MOVE:                final float yDiff = ev.getY() - mInitialDownY;                if (yDiff < mTouchSlop) {
                       return false;                }        }        return super.onInterceptTouchEvent(ev);    }    /**     * @return 返回灵敏度数值     */    public int getTouchSlop() {
           return mTouchSlop;    }    /**     * 设置下拉灵敏度     *     * @param mTouchSlop dip值     */    public void setTouchSlop(int mTouchSlop) {
           this.mTouchSlop = mTouchSlop;    }}

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