如何覆盖辅助功能类名称

Posted 2023-01-28

我想防止Talkback宣布Button视图的类名。为此，我编写了以下逻辑，但不起作用

fun setAccessibilityDelegate(view: Button?) 
    view?.setAccessibilityDelegate(object : View.AccessibilityDelegate() 
        override fun onInitializeAccessibilityNodeInfo(host: View?, info: AccessibilityNodeInfo?) 
            super.onInitializeAccessibilityNodeInfo(host, info)
            info?.contentDescription = getContentDesStartWatching()
            info?.className = ""
        
    )

实际说明：“开始观看按钮，按钮双击激活”

预期描述：“ 开始观看按钮，双击以激活”

[注意：无法从后端获取内容描述，将其更改为“开始观看”

答案

这对我有用，使用AccessibilityDelegateCompat而不是AccessibilityDelegate

Kotlin代码：

fun setAccessibilityDelegate(view: View) 
    ViewCompat.setAccessibilityDelegate(view, object: AccessibilityDelegateCompat() 
        override fun onInitializeAccessibilityNodeInfo(host:View,
                                                       info: AccessibilityNodeInfoCompat) 
            super.onInitializeAccessibilityNodeInfo(host, info)
            info.className = null
            info.contentDescription = getContentDesStartWatching()
        
    )