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- All Implemented Interfaces:
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tds.androidx.viewpager.ViewPager.OnPageChangeListener
public class ViewPager.SimpleOnPageChangeListener implements ViewPager.OnPageChangeListener
Simple implementation of the OnPageChangeListener interface with stubimplementations of each method. Extend this if you do not intend to overrideevery method of OnPageChangeListener.
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Method Summary
Modifier and Type Method Description void
onPageScrolled(int position, float positionOffset, int positionOffsetPixels)
This method will be invoked when the current page is scrolled, either as partof a programmatically initiated smooth scroll or a user initiated touch scroll. void
onPageSelected(int position)
This method will be invoked when a new page becomes selected. void
onPageScrollStateChanged(int state)
Called when the scroll state changes. -
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Method Detail
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onPageScrolled
void onPageScrolled(int position, float positionOffset, int positionOffsetPixels)
This method will be invoked when the current page is scrolled, either as partof 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.
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onPageSelected
void onPageSelected(int position)
This method will be invoked when a new page becomes selected. Animation is notnecessarily complete.
- Parameters:
position
- Position index of the new selected page.
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onPageScrollStateChanged
void onPageScrollStateChanged(int state)
Called when the scroll state changes. Useful for discovering when the userbegins dragging, when the pager is automatically settling to the current page,or when it is fully stopped/idle.
- Parameters:
state
- The new scroll state.
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