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java.lang.Objectandroid.support.v4.view.ViewPager.SimpleOnPageChangeListener
public static class ViewPager.SimpleOnPageChangeListener
Simple implementation of the ViewPager.OnPageChangeListener
interface with stub
implementations of each method. Extend this if you do not intend to override
every method of ViewPager.OnPageChangeListener
.
Constructor Summary | |
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ViewPager.SimpleOnPageChangeListener()
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Method Summary | |
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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. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ViewPager.SimpleOnPageChangeListener()
Method Detail |
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public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels)
ViewPager.OnPageChangeListener
onPageScrolled
in interface ViewPager.OnPageChangeListener
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.public void onPageSelected(int position)
ViewPager.OnPageChangeListener
onPageSelected
in interface ViewPager.OnPageChangeListener
position
- Position index of the new selected page.public void onPageScrollStateChanged(int state)
ViewPager.OnPageChangeListener
onPageScrollStateChanged
in interface ViewPager.OnPageChangeListener
state
- The new scroll state.ViewPager.SCROLL_STATE_IDLE
,
ViewPager.SCROLL_STATE_DRAGGING
,
ViewPager.SCROLL_STATE_SETTLING
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