android kl 文件的作用
来源:互联网 发布:软件的系统架构 编辑:程序博客网 时间:2024/06/06 05:21
首先看touchscreen的kl文件
# Copyright (c) 2014, The Linux Foundation. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of The Linux Foundation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
key 158 BACK VIRTUAL WAKE
key 102 HOME VIRTUAL WAKE
key 580 APP_SWITCH VIRTUAL WAKE
key 116 GESTURE_DOUBLE_CLICK VIRTUAL WAKE
key 46 GESTURE_C VIRTUAL WAKE
key 18 GESTURE_E VIRTUAL WAKE
key 31 GESTURE_S VIRTUAL WAKE
key 47 GESTURE_V VIRTUAL WAKE
key 17 GESTURE_W VIRTUAL WAKE
key 44 GESTURE_Z VIRTUAL WAKE
那么这个kl有啥用呢,众所周知,android kernel和framework是不同的两层,也就是说,kernel里认识的
key值是158之类的这种数字,这个158是scankode,它往framework上报的时候也只会报这样的数字,但是framework不认识这个数字是什么,所以framework需要先解析kl文件,map起来,这样kernel传值上来的时候才会知道到底是什么key,也就是说转换scancode 158变成KeyCodeLabel也就是BACK,然后back再转换成4这个keycode
# Copyright (c) 2014, The Linux Foundation. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of The Linux Foundation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
key 158 BACK VIRTUAL WAKE
key 102 HOME VIRTUAL WAKE
key 580 APP_SWITCH VIRTUAL WAKE
key 116 GESTURE_DOUBLE_CLICK VIRTUAL WAKE
key 46 GESTURE_C VIRTUAL WAKE
key 18 GESTURE_E VIRTUAL WAKE
key 31 GESTURE_S VIRTUAL WAKE
key 47 GESTURE_V VIRTUAL WAKE
key 17 GESTURE_W VIRTUAL WAKE
key 44 GESTURE_Z VIRTUAL WAKE
那么这个kl有啥用呢,众所周知,android kernel和framework是不同的两层,也就是说,kernel里认识的
key值是158之类的这种数字,这个158是scankode,它往framework上报的时候也只会报这样的数字,但是framework不认识这个数字是什么,所以framework需要先解析kl文件,map起来,这样kernel传值上来的时候才会知道到底是什么key,也就是说转换scancode 158变成KeyCodeLabel也就是BACK,然后back再转换成4这个keycode
首先
key 580 APP_SWITCH VIRTUAL WAKE
这里的580是scancode,转换撑了APP_SWITCH这个keycodelabel
InputEventLabels.h里的
DEFINE_KEYCODE(APP_SWITCH),
#define DEFINE_KEYCODE(key) { #key, AKEYCODE_##key }
这里拼接了AKEYCODE_APP_SWITCH
Keycodes.h (native\include\android): AKEYCODE_APP_SWITCH = 187,
KeyEvent.java (base\core\java\android\view): public static final int KEYCODE_APP_SWITCH = 187;
然后就变成了keycode 187
0 0
- android kl 文件的作用
- android kl文件
- android input系统如何导入kl文件
- android 按键映射配置.kl文件备忘
- Touch---load kl文件的过程
- android 按键映射***.kl文件中的WAKE和WAKE_DROPPED的定义
- android 按键映射qwerty.kl文件中的WAKE和WAKE_DROPPED的定义
- android 按键映射qwerty.kl文件中的WAKE和WAKE_DROPPED的定义
- Android Input系统介绍与kcm与kl文件的定制
- android 添加按键(一) kl文件 kcm文件
- 移植kl文件,却调用到默认的Generic.kl的解决办法
- Android .classpath文件的作用
- Android .classpath文件的作用
- 汽车电子的KL
- Linux和android下测试键盘和触摸屏 && .kl文件中的WAKE和WAKE_DROPPED
- android 一些文件的位置和作用
- Android中的XML文件的作用介绍
- Android 中各种XML文件的作用
- ubuntu14.01 下python3.4 链接mysql数据库
- Linux Security Module Framework
- 火狐书签扩展应用Pocket:漏洞挖掘没那么难
- StringUtils中的isBlank与isEmpty
- PyQt开发讲解
- android kl 文件的作用
- [APP资讯] 开发一个App要多少钱?有免费开发App的网站吗?
- C++、Java、JavaScript中的正则表达式
- nginx 相关知识点
- form+iframe实现无刷新上传文件
- 黑马程序员----多线程3(线程间通信、JDK1.5新特性、线程类的其他方法)
- There is no statement named OproductKey.selectProductkey in this SqlMap
- 使用AsyncHttpClient碰到的问题及解决方法
- 图像处理之相似图片识别(直方图应用篇)