没有 EditText 的软键盘检测按键
如何使用硬键盘或软键盘可靠地检测按键？
我的应用程序通过 WiFi 远程控制另一台设备，我需要检测软键盘或硬键盘上的每个按键。我实际上并不需要 EditText，因为我只需要在按下字符时一次发送一个字符，不需要最终的文本字符串。
我尝试过将 EditText 与 OnKeyPress 一起使用，但遇到了问题此处 无法使用软键盘按下按键。并且 TextWatcher 不是一个好的选择因为我需要每次按键。
如果必须的话，我会使用 EditText，但我宁愿不这样做。我真正想要的是：
- 当用户点击“搜索”按钮时调出软键盘
- 用户按下按键，然后我将代码传输到远程设备。实际上不需要在 EditText 中看到屏幕上的任何内容，因为它将显示在远程设备上
- 用户按软键盘上的自定义“完成”按钮将其关闭
有什么建议吗？
How can I detect key presses reliably with a hard or soft keyboard?
My app remotely controls another device over wifi, and I need to detect every key press on either a soft or hard keyboard. I don't really need an EditText because I just need to send the characters one at a time as they are pressed and don't need the final text string.
I have tried using an EditText with OnKeyPress, but ran into the problems here with not getting key presses with soft keyboards. And TextWatcher isn't a good option because I need each key press.
I'll use an EditText if I have to, but would prefer not to. What I really want is to:
- Bring up a soft keyboard when the user hits a Search button
- User presses keys and I transmit the codes to remote device. Don't really need to see anything on screen in an EditText since it will be shown on the remote device
- User presses the custom Done button on the soft keyboard to close it
Any suggestions?
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那么您可以覆盖 [
onKeyDown(int keyCode, KeyEvent event)][1] 和（或）[onKeyUp(int keyCode, KeyEvent event)][2]应用程序活动类中的方法，这将允许您获得有关后退键和其他硬件键等键的通知...
注意：您可以获得有关轨迹球移动等的通知...
[1]: http://developer.android.com/reference/android/view/View .html#onKeyDown(int, android.view.KeyEvent)
[2]: http://developer.android.com/reference /android/view/View.html#onKeyUp(int, android.view.KeyEvent)
Well you could override the [
onKeyDown(int keyCode, KeyEvent event)][1] and(or) [onKeyUp(int keyCode, KeyEvent event)][2]methods in the applications activity class, this would allow you to get notification even about such keys as the back key and other hardware keys...
Note: you can get notification about trackball movement and so on...
[1]: http://developer.android.com/reference/android/view/View.html#onKeyDown(int, android.view.KeyEvent)
[2]: http://developer.android.com/reference/android/view/View.html#onKeyUp(int, android.view.KeyEvent)