程序包 ohos.agp.components

接口 ProgressBar.BarObserver

封闭类:

ProgressBar

public static interface ProgressBar.BarObserver

Provides a text observer to listen for changes of progress bars in a component.

The onBarChanged(int, int, int) method is called each time the progress bar changes.

从以下版本开始:

4

方法概要

限定符和类型	方法	说明
void	onBarChanged(int before, int after, int count)	Called when the progress bar changes.

方法详细资料

onBarChanged

void onBarChanged(int before,
                  int after,
                  int count)

Called when the progress bar changes.

For example, if the verification progress moves from 0 to 20, then the value of before is 0, the value of after is 20, and the value of count is 20.

参数:

before - Indicates the previous position in the progress bar.

after - Indicates the current position in the progress bar.

count - Indicates the difference between the previous position and the current position.

从以下版本开始:

4