在 AccessibilityNodeInfo 中设置文本 [英] Set text in AccessibilityNodeInfo

问题描述

我正在开发 Android 无障碍服务.我有一个 AccessibilityNodeInfo 代表一个 EditText.是否可以编辑包含的文本?

I'm developing an Android Accessibility Service. I got an AccessibilityNodeInfo that represents an EditText. Is possibile to edit the contained text?

我尝试使用 mynode.setText("aaa") 但我得到了 IllegalStateException，如官方文档 http://developer.android.com/reference/android/view/accessibility/AccessibilityNodeInfo.html

I tried with mynode.setText("aaa") but i get IllegalStateException as described in official documentation http://developer.android.com/reference/android/view/accessibility/AccessibilityNodeInfo.html

有什么想法吗?谢谢

推荐答案

您可以使用 ACTION_SET_TEXT 适用于 >= android 21.这是它的示例:

You can use ACTION_SET_TEXT for >= android 21. Here is the example of it:

AccessibilityNodeInfo source = event.getSource();
if (source != null & event.getClassName().equals("android.widget.EditText")) {
    Bundle arguments = new Bundle();
    arguments.putCharSequence(AccessibilityNodeInfo
            .ACTION_ARGUMENT_SET_TEXT_CHARSEQUENCE, "android");
    source.performAction(AccessibilityNodeInfo.ACTION_SET_TEXT, arguments);
}

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