android系统下怎么广播键盘的输入消息

Posted 2023-05-13

参考技术A 1.在lichee/linux-3.0/include/linux/input.h文件可以查看底层驱动的按键编码
#define KEY_F1 59
#define KEY_F2 60
#define KEY_F3 61
#define KEY_F4 62
#define KEY_F5 63
#define KEY_F6 64
#define KEY_F7 65
#define KEY_F8 66
#define KEY_F9 67
#define KEY_F10 68
2.在android4.0/frameworks/base/core/java/android/view/KeyEvent.java文件可以查看上层驱动的按键编码
/** Key code constant: F1 key. */
public static final int KEYCODE_F1 = 131;
/** Key code constant: F2 key. */
public static final int KEYCODE_F2 = 132;
/** Key code constant: F3 key. */
public static final int KEYCODE_F3 = 133;
/** Key code constant: F4 key. */
public static final int KEYCODE_F4 = 134;
/** Key code constant: F5 key. */
public static final int KEYCODE_F5 = 135;
/** Key code constant: F6 key. */
public static final int KEYCODE_F6 = 136;
/** Key code constant: F7 key. */
public static final int KEYCODE_F7 = 137;
/** Key code constant: F8 key. */
public static final int KEYCODE_F8 = 138;
/** Key code constant: F9 key. */
public static final int KEYCODE_F9 = 139;
/** Key code constant: F10 key. */
public static final int KEYCODE_F10 = 140;
3.在/android4.0/frameworks/base/data/keyboards/Generic.kl文件里面有底层到上层的映射，将这个文件定制到自己的系统android4.0/out/target/product/crane-m1003h6/system/usr/keylayout目录下就可以了在上层收到USB键盘F1-F10的消息了。
key 59 F1
key 60 F2
key 61 F3
key 62 F4
key 63 F5
key 64 F6
key 65 F7
key 66 F8
key 67 F9
key 68 F10
4.在/android4.0/frameworks/base/policy/src/com/android/internal/policy/impl/PhoneWindow.java文件的onKeyDown，onKeyUp函数截获F1-F10的消息，用自己定义的广播消息广播出去应用就可以在后台或者前台都可以接收到按键按下或者释放的广播消息了。
case KeyEvent.KEYCODE_F1:
//Log.e("zkliu","---------------------------test F1---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F1_KEYDOWN"));
return true;


case KeyEvent.KEYCODE_F2:
//Log.e("zkliu","---------------------------test F2---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F2_KEYDOWN"));
return true;


case KeyEvent.KEYCODE_F3:
//Log.e("zkliu","---------------------------test F3---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F3_KEYDOWN"));
return true;


case KeyEvent.KEYCODE_F4:
//Log.e("zkliu","---------------------------test F4---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F4_KEYDOWN"));
return true;


case KeyEvent.KEYCODE_F5:
//Log.e("zkliu","---------------------------test F5---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F5_KEYDOWN"));
return true;


case KeyEvent.KEYCODE_F6:
//Log.e("zkliu","---------------------------test F6---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F6_KEYDOWN"));
return true;


case KeyEvent.KEYCODE_F7:
//Log.e("zkliu","---------------------------test F7---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F7_KEYDOWN"));
return true;


case KeyEvent.KEYCODE_F8:
//Log.e("zkliu","---------------------------test F8---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F8_KEYDOWN"));
return true;


case KeyEvent.KEYCODE_F9:
//Log.e("zkliu","---------------------------test F9---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F9_KEYDOWN"));
return true;


case KeyEvent.KEYCODE_F10:
//Log.e("zkliu","---------------------------test F10---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F10_KEYDOWN"));
return true;


case KeyEvent.KEYCODE_F1:
//Log.e("zkliu","---------------------------test F1---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F1_KEYUP"));
return true;


case KeyEvent.KEYCODE_F2:
//Log.e("zkliu","---------------------------test F2---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F2_KEYUP"));
return true;


case KeyEvent.KEYCODE_F3:
//Log.e("zkliu","---------------------------test F3---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F3_KEYUP"));
return true;


case KeyEvent.KEYCODE_F4:
//Log.e("zkliu","---------------------------test F4---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F4_KEYUP"));
return true;


case KeyEvent.KEYCODE_F5:
//Log.e("zkliu","---------------------------test F5---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F5_KEYUP"));
return true;


case KeyEvent.KEYCODE_F6:
//Log.e("zkliu","---------------------------test F6---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F6_KEYUP"));
return true;


case KeyEvent.KEYCODE_F7:
//Log.e("zkliu","---------------------------test F7---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F7_KEYUP"));
return true;


case KeyEvent.KEYCODE_F8:
//Log.e("zkliu","---------------------------test F8---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F8_KEYUP"));
return true;


case KeyEvent.KEYCODE_F9:
//Log.e("zkliu","---------------------------test F9---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F9_KEYUP"));
return true;


case KeyEvent.KEYCODE_F10:
//Log.e("zkliu","---------------------------test F10---------------------------");
getContext().sendBroadcast(new Intent("com.android.action.F10_KEYUP"));
return true;

应用程序注册接收相应的广播消息即可接收到键盘输入消息。本回答被提问者和网友采纳

.NET下如何拦截鼠标、键盘消息？Win32NET来帮你

参考技术A

Win32NET是一个Win32API的.NET下封装的类库，包含：

1: 常用win32的API的net封装

2：鼠标、键盘、热键hook钩子模块，

3：模拟键盘输入文字（支持各种字符文字、不同语言的文字）、模拟鼠标点击移动滚动等操作

4.系统硬件信息查询

如何使用该Win32Net库呢？可以在nuget包管理搜索Win32Net，

或者直接添加引用，

如何使用鼠标钩子：

首先实例化一个鼠标钩子对象，然后定义鼠标事件回调方法，启动监听即可。当不需要继续监听鼠标信息，则可以取消监听。

如何使用键盘钩子：

键盘钩子与鼠标钩子使用类似，首先实例化一个键盘钩子对象，然后定义键盘事件回调方法，启动监听即可。当不需要继续监听键盘信息，则可以取消监听。

如何注册全局快捷键

如何获取系统硬件信息