查找是否在 android 中连接了外部 usb 或蓝牙键盘-百家乐凯发k8

问题描述

谁能告诉我是否有任何方法可以找出蓝牙 qwerty 键盘是否连接到 android 设备.

我尝试使用 getresources().getconfiguration.keyboard，但无论是否连接键盘，它总是给我相同的值.

谢谢

实现此目的的一种方法是将 android:configchanges="keyboard" 添加到 androidmanifest.xml 文件中的活动中.p>

有了这个，你可以覆盖 onconfigurationchanged 每当插入或拔出键盘时都会调用它

 @override公共无效 onconfigurationchanged(配置新配置){如果(newconfig.hardkeyboardhidden == configuration.hardkeyboardhidden_no){//正在连接一个硬件键盘}否则如果(newconfig.hardkeyboardhidden == configuration.hardkeyboardhidden_yes)//一个硬件键盘正在断开连接}}

can anyone please tell me if there is any way we can find out if a bluetooth qwerty keyboard is attached to android device.

i tried working with getresources().getconfiguration.keyboard, but it always gives me the same value whether key board is attached or not.

thanks

one way to do this is adding android:configchanges="keyboard" to the activity in your androidmanifest.xml file.

with this you can override onconfigurationchanged which will be called whenever a keyboard is plugged in or plugged out

 @override
 public void onconfigurationchanged(configuration newconfig) 
 {
   if(newconfig.hardkeyboardhidden == configuration.hardkeyboardhidden_no) {
        //a hardware keyboard is being connected
   }  
   else if(newconfig.hardkeyboardhidden == configuration.hardkeyboardhidden_yes)
       //a hardware keyboard is being disconnected
   }
 }