SwipeView类似桌面的滑动界面(4)

        requestLayout(); 
        invalidate(); 
        mLinearLayout.addView(child, index, params); 
    } 
     
    /**
     * {@inheritDoc}
     */ 
    @Override 
    protected void onLayout(boolean changed, int l, int t, int r, int b) 
    { 
        super.onLayout(changed, l, t, r, b); 
        if(mCallScrollToPageInOnLayout) 
        { 
            scrollToPage(mCurrentPage); 
            mCallScrollToPageInOnLayout = false; 
        } 
    } 
     
    /**
     * {@inheritDoc}
     */ 
    @Override 
    public void setOnTouchListener(View.OnTouchListener onTouchListener) 
    { 
        mOnTouchListener = onTouchListener; 
    } 
     
    /**
     * Get the View object that contains all the children of this SwipeView. The same as calling getChildAt(0)
     * A SwipeView behaves slightly differently from a normal ViewGroup, all the children of a SwipeView
     * sit within a LinearLayout, which then sits within the SwipeView object. 
     * 
     * @return linearLayout The View object that contains all the children of this view
     */ 
    public LinearLayout getChildContainer() 
    { 
        return mLinearLayout; 
    } 
     
    /**
     * Get the swiping threshold distance to make the screens change
     * 
     * @return swipeThreshold The minimum distance the finger should move to allow the screens to change
     */ 
    public int getSwipeThreshold() 
    { 
        return DEFAULT_SWIPE_THRESHOLD; 
    }