harmony 鸿蒙ArkUI Subsystem Changelog

2025-06-12
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ArkUI Subsystem Changelog

OpenHarmony 4.1.6.2 has the following changes.

cl.arkui.1 Change in Display of Overflowing Title Text for Alert Dialog Boxes and Action Sheets

Access Level

Public

Reason for Change

Specification optimization.

Change Impact

This change is a compatible change.

When title and subtitle are set for an alert dialog box or action sheet:

a. If the value of title does not fit in the display area:

Before change: A maximum of one line of text is displayed, and an ellipsis (…) is used to represent clipped text.

After change: The font size is first decreased incrementally until it reaches 16 fp, then text is wrapped onto a new line, and finally an ellipsis (…) is used to represent clipped text.

b. If the value of subtitle does not fit in the display area:

Before change: A maximum of one line of text is displayed, and an ellipsis (…) is used to represent clipped text.

After change: The font size is first decreased incrementally until it reaches 12 fp, then text is wrapped onto a new line, and finally an ellipsis (…) is used to represent clipped text.

API Level

title and subtitle of AlertDialog are supported since API version 7 and API version 10, respectively.

title and subtitle of ActionSheet are supported since API version 8 and API version 10, respectively.

Change Since

OpenHarmony SDK 4.1.6.2

Key API/Component Changes

AlertDialog and ActionSheet

Adaptation Guide

This change is about the default settings, and no adaptation is required.

cl.arkui.2 Change in Display of Overflowing Title Text Set Through promptAction.showDialog

Access Level

Public

Reason for Change

Specification optimization.

Change Impact

This change is a compatible change.

promptAction.showDialog can take the title parameter.

If the value of title does not fit in the display area:

Before change: A maximum of one line of text is displayed, and an ellipsis (…) is used to represent clipped text.

After change: The font size is first decreased incrementally until it reaches 16 fp, then text is wrapped onto a new line, and finally an ellipsis (…) is used to represent clipped text.

API Level

Change Since

OpenHarmony SDK 4.1.6.2

Key API/Component Changes

promptAction.showDialog

Adaptation Guide

This change is about the default settings, and no adaptation is required.