performaction ACTION_SET_SELECTION无法正常工作

问题描述

我是使用android的辅助功能库的新手，我遇到了很多麻烦。但是我认为这不是我的错：
我想使用accessibilitynodeinfo从中间开始搜索栏：

I am new at working with the accessibility library of android i have a lot of troubles. But there is one i think is not my fault:I want to use the accessibilitynodeinfo to start a seekbar from the middle:

if(mychildinfo.getClassName().toString().contains("SeekBar")){              
         Bundle b = new Bundle();
         b.putInt(AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_START_INT, 49);
         b.putInt(AccessibilityNodeInfo.ACTION_ARGUMENT_SELECTION_END_INT, 50);
         mychildinfo.performAction(AccessibilityNodeInfo.ACTION_SET_SELECTION,b);
}

但它不起作用，我也没有收到任何反馈在我的代码中是错误的？
有人可以帮我吗？

but it doesn't work and i don't get any feedback of something to be wrong in my code?Can anybody help me, please?

我在Nexus 5中使用android 4.4.2

I use android 4.4.2 in Nexus 5

推荐答案

您不能使用AccessibilityNodeInfo.performAction（）指定搜索栏位置。 ACTION_SET_SELECTION操作仅在TextView中实现。

You cannot use AccessibilityNodeInfo.performAction() to specify seek bar position. The ACTION_SET_SELECTION action is only implemented in TextView.

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