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OHOS-UICheckBox-OnChangeListener.md 3.93 KB
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wenjun authored 2020-09-08 10:08 . add OpenHarmony 1.0 baseline

OHOS::UICheckBox::OnChangeListener

Overview

Related Modules:

Graphic

Description:

Represents a listener for changes of a check box.

This is an inner class of UICheckBox. It contains a callback function to be invoked when the check box state changes.

Since:

1.0

Version:

1.0

Summary

Public Member Functions

Public Member Function Name

Description

OnChange (UICheckBoxState state)=0

virtual bool 

Called when the state of this check box is switched. This is a virtual function, which needs your implementation.

~OnChangeListener ()

virtual 

A destructor used to delete the OnChangeListener instance.

operator new (size_t size)

void * 

Overrides the new function.

operator delete (void *p)

void 

Overrides the delete function.

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