public int getItemViewType(int position) {
		return 0;
	}
Get the type of View that will be created by {@link #getView} for the
specified item.

@param position
           The position of the item within the adapter's data set whose
           view type we want.
@return An integer representing the type of View. Two views should share
        the same type if one can be converted to the other in
        {@link #getView}. Note: Integers must be in the range 0 to
        {@link #getViewTypeCount} - 1. {@link #IGNORE_ITEM_VIEW_TYPE} can
        also be returned.
@see #IGNORE_ITEM_VIEW_TYPE
library/src/main/java/com/shizhefei/view/viewpager/RecyclingPagerAdapter.java