适配天波机器的按键调节音量(目前发现无法弹出音量调节框)

app/src/main/java/com/bgycc/smartcanteen/activity/MainActivity.kt

@@ -121,14 +121,16 @@ class MainActivity : BaseActivity() {
         Log.i(TAG, "keyCode: $keyCode")
 //        ToastUtils.showLong("keyCode: $keyCode")
         when(keyCode) {
-            KeyEvent.KEYCODE_PAGE_UP -> {
+            KeyEvent.KEYCODE_PAGE_UP,
+            KeyEvent.KEYCODE_NUMPAD_ADD -> {
                 mAudioManager!!.adjustStreamVolume(
                     AudioManager.STREAM_SYSTEM,
                     AudioManager.ADJUST_RAISE,
                     AudioManager.FLAG_SHOW_UI
                 )
             }
-            KeyEvent.KEYCODE_PAGE_DOWN -> {
+            KeyEvent.KEYCODE_PAGE_DOWN,
+            KeyEvent.KEYCODE_NUMPAD_SUBTRACT -> {
                 mAudioManager!!.adjustStreamVolume(
                     AudioManager.STREAM_SYSTEM,
                     AudioManager.ADJUST_LOWER,