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ViewPager.OnPageChangeListener


android.support.v4.view

Interface ViewPager.OnPageChangeListener

  • All Known Implementing Classes:
    ViewPager.SimpleOnPageChangeListener
    Enclosing class:
    ViewPager


    public static interface ViewPager.OnPageChangeListener
    Callback interface for responding to changing state of the selected page.
    • Method Summary

      Methods
      Modifier and Type Method and Description
      void onPageScrolled(int position, float positionOffset, int positionOffsetPixels)
      This method will be invoked when the current page is scrolled, either as part of a programmatically initiated smooth scroll or a user initiated touch scroll.
      void onPageScrollStateChanged(int state)
      Called when the scroll state changes.
      void onPageSelected(int position)
      This method will be invoked when a new page becomes selected.
    • Method Detail

      • onPageScrolled

        void onPageScrolled(int position,
                          float positionOffset,
                          int positionOffsetPixels)
        This method will be invoked when the current page is scrolled, either as part of a programmatically initiated smooth scroll or a user initiated touch scroll.
        Parameters:
        position - Position index of the first page currently being displayed. Page position+1 will be visible if positionOffset is nonzero.
        positionOffset - Value from [0, 1) indicating the offset from the page at position.
        positionOffsetPixels - Value in pixels indicating the offset from position.
      • onPageSelected

        void onPageSelected(int position)
        This method will be invoked when a new page becomes selected. Animation is not necessarily complete.
        Parameters:
        position - Position index of the new selected page.


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