Android 原创] 关于安卓机物理按键映射问题？遇到难题，求论坛大佬给点思路

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Android 原创] 关于安卓机物理按键映射问题？遇到难题，求论坛大佬给点思路
汽车的安卓系统车机，车机安装一个桌面（嘟嘟桌面）后，第三方虚拟按键（如:小白点）设置好嘟嘟为桌面，可以返回嘟嘟的主页，但是车机的物理按键无法实现到达嘟嘟桌面，物理按键总是回到车机本身的桌面！
求论坛大佬给点思路，如何实现物理按键能映射到嘟嘟桌面
目前车机无法root，只能通过abd连接电脑
提取了qwerty.kl内容如下
# Copyright (C) 2010 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

#
# Emulator keyboard layout #1.
#
# This file is no longer used as the platform's default keyboard layout.
# Refer to Generic.kl instead.
#

key 399   GRAVE
key 2     1
key 3     2
key 4     3
key 5     4
key 6     5
key 7     6
key 8     7
key 9     8
key 10    9
key 11    0
key 158   BACK
key 230   SOFT_RIGHT
key 60    SOFT_LEFT
key 107   ENDCALL
key 62    ENDCALL
key 229   MENU
key 139   MENU
key 59    MENU
key 127   SEARCH
key 217   SEARCH
key 228   POUND
key 227   STAR
key 231   CALL
key 61    CALL
key 232   DPAD_CENTER
key 108   DPAD_DOWN
key 103   DPAD_UP
key 102   HOME
key 105   DPAD_LEFT
key 106   DPAD_RIGHT
key 115   VOLUME_UP
key 114   VOLUME_DOWN
key 116   POWER
key 212   CAMERA

key 16    Q
key 17    W
key 18    E
key 19    R
key 20    T
key 21    Y
key 22    U
key 23    I
key 24    O
key 25    P
key 26    LEFT_BRACKET
key 27    RIGHT_BRACKET
key 43    BACKSLASH

key 30    A
key 31    S
key 32    D
key 33    F
key 34    G
key 35    H
key 36    J
key 37    K
key 38    L
key 39    SEMICOLON
key 40    APOSTROPHE
key 14    DEL
        
key 44    Z
key 45    X
key 46    C
key 47    V
key 48    B
key 49    N
key 50    M
key 51    COMMA
key 52    PERIOD
key 53    SLASH
key 28    ENTER
        
key 56    ALT_LEFT
key 100   ALT_RIGHT
key 42    SHIFT_LEFT
key 54    SHIFT_RIGHT
key 15    TAB
key 57    SPACE
key 150   EXPLORER
key 155   ENVELOPE        

key 12    MINUS
key 13    EQUALS
key 215   AT

# On an AT keyboard: ESC, F10
key 1     BACK
key 68    MENU