如何在Android Pie中使用Bluetooth HID设备配置文件? [英] How can i use the Bluetooth HID Device profile in Android Pie?

问题描述

我正在尝试使用Bluetooth HID设备配置文件服务编写用于Android P的应用程序，以用作Bluetooth键盘.根据文档，我应该使用方法BluetoothAdapter.getProfileProxy(Context, BluetoothProfile.ServiceListener, int)来获取BluetoothHidDevice代理对象.

I am trying to write an app for Android P using the Bluetooth HID device profile service to be used as a Bluetooth keyboard. According to the documentation I am supposed to use the method BluetoothAdapter.getProfileProxy(Context, BluetoothProfile.ServiceListener, int) to get the BluetoothHidDevice proxy object.

在我的Android Pie设备(Nokia 7 plus)上调试期间，服务监听器永远不会被调用(onServiceConnected)，并且在Logcat中出现以下错误:

During debug on my Android Pie device (Nokia 7 plus) the service listener never get called (onServiceConnected), and i get the following error in Logcat:

Could not bind to Bluetooth HID Device Service with Intent { act=android.bluetooth.IBluetoothHidDevice }

如果我将上述通话中的最后一个参数从 HID_DEVICE 更改为其他蓝牙配置文件，例如 A2DP ，服务侦听器将获得回调onServiceConnected，并且不会显示错误.

If I change the last param in the call above from HID_DEVICE to some other bluetooth profile e.g. A2DP, the service listener get the callback onServiceConnected and no error is displayed.

1. 有人在Android Pie上创建了有效的HID_DEVICE吗?
2. 可以使用BluetoothHidDevice在Android上创建隐藏设备 派电话?
3. 有什么我可以看的工作代码吗?
4. 是否有某些功能(getPackageManager().hasSystemFeature) 我的手机不见了吗?
5. 上面的错误可能是什么原因?

1. Has anyone created a working HID_DEVICE on Android Pie?
2. Can BluetoothHidDevice be used to create a hid-device on an Android Pie phone?
3. Is there any working code that i can look at?
4. Is there some feature (getPackageManager().hasSystemFeature) missing in my phone?
5. What could be the reason for the error above?

任何提示将不胜感激:)

Any hints would be greatly appreciated :)

这似乎是第三方问题.诺基亚未在Android Pie中启用隐藏配置文件.我还尝试了Mototorola G7播放，它也被禁用了，我想现在该是像素了……

This seems to be a third-party issue. Nokia did not enable the hid-profile in Android Pie. I also tried with a Mototorola G7 play, it was also disabled, i guess it's time for a pixel...

推荐答案

当前在像素上启用了HID设备配置文件.据我所知，诺基亚，moto(如上所述)以及One Plus 5T和6不支持此配置文件.

Currently on pixel the HID device Profile is enabled . Nokia, moto(as mentioned above) and One Plus 5T and 6 as far as i know dont support this profile.

我们创建了一个应用程序，您可以通过此HID设备配置文件将手机用作蓝牙鼠标和键盘. https://play.google.com/store/apps/details?id = com.github.roarappstudio.btkontroller

We have created an app which lets you use your phone as a bluetooth mouse and keyboard with this HID device profile. https://play.google.com/store/apps/details?id=com.github.roarappstudio.btkontroller

该代码在 https://github.com/raghavk92/Kontroller 上开源.如果有人想帮助您进行改进或为代码做出贡献，则欢迎他们.

The code is open sourced at https://github.com/raghavk92/Kontroller. If anyone wants to help in making improvements or contribute to the code they are welcome.

您还可以通过该应用检查手机是否支持蓝牙HID设备配置文件- https://play.google.com/store/apps/details?id=com.rkaneapplabs.bluetooth_hid.bluetoothproxy ，并让您的设备制造商知道他们是否不支持您的设备，因为其android pie的一部分，应该受到支持.

You can also check if your phone supports Bluetooth HID device profile with the app - https://play.google.com/store/apps/details?id=com.rkaneapplabs.bluetooth_hid.bluetoothproxy and let your device manufacturer know if they dont support your device because its part of android pie and should be supported.

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