程序包 ohos.agp.components

接口 PageSlider.PageChangedListener

封闭类:

PageSlider

public static interface PageSlider.PageChangedListener

Provides a listener to observe page change events.

This interface is triggered when the selected page is changed.

方法概要

限定符和类型	方法	说明
void	onPageChosen(int itemPos)	Called back when a new page is chosen.
void	onPageSlideStateChanged(int state)	Called when the page slide state is changed.
void	onPageSliding(int itemPos, float itemPosOffset, int itemPosOffsetPixels)	Called when the page is sliding.

方法详细资料

onPageSliding

void onPageSliding(int itemPos,
                   float itemPosOffset,
                   int itemPosOffsetPixels)

Called when the page is sliding.

参数:

itemPos - Indicates the position index of the displayed page.

itemPosOffset - Indicates the position offset of the page. The value range is (0, 1]. 0 indicates that the same page is being displayed; 1 indicates that the target page is being displayed.

itemPosOffsetPixels - Indicates the number of position offset pixels of the displayed page.

从以下版本开始:

4

onPageSlideStateChanged

void onPageSlideStateChanged(int state)

Called when the page slide state is changed.

参数:

state - Indicates the page state. The value can be 0, 1, or 2, representing that the page is in idle, dragged, or sliding state, respectively.

从以下版本开始:

4

onPageChosen

void onPageChosen(int itemPos)

Called back when a new page is chosen.

参数:

itemPos - Indicates the index of the chosen page.

从以下版本开始:

4