UISlider VoiceOver的无障碍特性？ [英] UISlider accessibility traits for VoiceOver?

问题描述

要使UISlider在启用VoiceOver的情况下可用，需要哪些正确的UIAccessibility特性和处理程序？

What are are the proper UIAccessibility traits and handlers required to make a UISlider usable with VoiceOver enabled?

有关用户如何使用UISlider的说明VoiceOver已启用？

Are there any descriptions of how a user might use a UISlider with VoiceOver enabled?

推荐答案

这是我最后添加到UISlider的VoiceOver辅助功能：

Here's what I ended up adding to a UISlider for VoiceOver accessibility:

[ mySlider setIsAccessibilityElement:YES ];
[ mySlider setAccessibilityLabel:@"This slider controls blah blah etc...." ];

在控制事件UIControlEventValueChanged的目标方法中：

And in the target method for the control event UIControlEventValueChanged:

[ mySlider setAccessibilityValue = [ NSString stringWithFormat:@"Blah blah is set to %3.1f", mySlider.value];

启用VoiceOver后，当我向上和向下滑动时，向前），将焦点设置到该滑块后。

With VoiceOver enabled, this slider then spoke the new value as I swiped up and down (not back and forth) over it after setting the focus to that slider.

这篇关于UISlider VoiceOver的无障碍特性？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！