安卓：听力吧code扫描仪按钮是pressed [英] Android: Listening for barcode scanner button being pressed

问题描述

我有摩托罗拉TC55，即配备有硬件酒吧code扫描器。我想要做的是能聆听到我的应用程序pssed该按钮时$ P $。我GOOGLE和SO看着没有任何运气。有人能指出我的资源，还是建议我如何开始？

I have a Motorola TC55, that is equipped with a hardware barcode scanner. What i'd like to do is listen for that button being pressed in my app. I've googled and looked on SO without any luck. Can someone point me to a resource, or suggest how i can get started?

推荐答案

在摩托罗拉TC55硬件扫描按钮键映射到BUTTON_L1在默认情况下，所以这是你会听什么样的下面。

On the Motorola TC55 the hardware scan button is mapped to the key "BUTTON_L1" by default so this is what you'd listen for like below.

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
  if(keyCode == KeyEvent.KEYCODE_BUTTON_L1 {
    //Do something scanner was pressed.
  }
}

您可以看到它是通过设置 - 映射到按键>可编程功能键

You can see the key it is mapped to through Settings->Programmable Keys

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