辅助功能：在密码输入字段上禁用 VoiceOver / Talkback

Question

是否可以在密码输入字段上禁用 VoiceOver (iOS) / Talkback (Android)，而无需为每个平台推出自定义键盘？

我不希望用户输入敏感信息（如密码或 PIN）时大声说出。

Answer 1

通过使用 View.onInitializeAccessibilityNodeInfo 和 View.onPopulateAccessibilityEvent 覆盖 View.AccessibilityDelegate

，可以对某些 TextEdit 视图禁用输入文本的 Talkback 画外音

    passwordView.setAccessibilityDelegate(new View.AccessibilityDelegate() {
        public void onInitializeAccessibilityNodeInfo(View host,                                                          AccessibilityNodeInfo info) {
            super.onInitializeAccessibilityNodeInfo(host, info);
            // 'setPassword(true)' is necessary for disabling voiceover
            //  for whole content of password field with visible content mode
            info.setPassword(true);
        }
        public void onPopulateAccessibilityEvent(View host, AccessibilityEvent event) {
            //do nothing -> no need to perform annotation of editText content changes
        }
    });