Android 模拟按键汇总

最新推荐文章于 2024-02-08 17:50:09 发布

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出处：http://hi.baidu.com/mgqw/blog/item/ef91923810ca85f8b311c705.html

名词解释：
scancode: 驱动对硬件的标记
keycode：上层应用程序所见的标记，跟硬件的标记不同，一般为KEY_F1之类的宏

一般驱动将scancode绑定到keycode
对未绑定的scancode, 可以通过setkeycodes将将其绑定到未使用的keycode
注：有些按键会被解释成acpi event, 可以通过acpi_listen来监听，但不一定成功，目前还没具体了解

模拟按键是上层应用程序的行为，所以不需要编译成模块，只需要想平常的应用程序那样编译就可以了，不过它要包含<linux/input.h>这个文件，同时要明确键盘对应的/dev/input/event[0-4]到底是哪个文件，此外还需要以root权限来运行

赖半仙注解：
运行命令 cat /proc/bus/input/devices 在输出里面查找 xxx keyboard 对应的文件是/dev/input/event几。我开始想当然的以为键盘文件是event1,结果死人都调不出来，弄了很久最后从event0开始一个一个试，才发现我的手提电脑键盘文件对应的是event4。

在我的电脑上运行命令 ls /dev/input/event* 发现有好多输入设备…………
/dev/input/event0 /dev/input/event10 /dev/input/event2 /dev/input/event4 /dev/input/event6 /dev/input/event8
/dev/input/event1 /dev/input/event11 /dev/input/event3 /dev/input/event5 /dev/input/event7 /dev/input/event9

下面是 cat /proc/bus/input/devices 命令对应键盘文件的一段输出
I: Bus=0011 Vendor=0001 Product=0001 Version=ab41
N: Name="AT Translated Set 2 keyboard"
P: Phys=isa0060/serio0/input0
S: Sysfs=/devices/platform/i8042/serio0/input/input4
U: Uniq=
H: Handlers=kbd event4
B: EV=120013
B: KEY=8000 0 0 0 0 0 5007 2002000 380307c f800d001 feffffdf ffefffff ffffffff ffffffff
B: MSC=10
B: LED=7

下面的程序是模拟按键NumLock，就是控制小键盘灯的那个按键，按下去（运行程序没有问题）后小键盘灯就会点亮或者熄灭。

 #include <linux/input.h>
#include <time.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>

void simulate_key(int fd, unsigned int keycode, int keyvalue)
{
    struct input_event event;

    event.type = EV_KEY;
    event.code = keycode;
    event.value = keyvalue;
    gettimeofday(&event.time, 0);

    if (write(fd, &event, sizeof(event)) < 0) {
        printf("simulate key error/n");
        return;
    }else
        printf("simuate key %d, %d/n", keycode, keyvalue);
}



    int
main ( int argc, char *argv[] )
{
    char *path = "/dev/input/event1";
    unsigned int key_code = KEY_NUMLOCK;

    if (argc >= 3) {
        path = argv[1];
        key_code = atoi(argv[2]);
    }else if (argc >= 2)
        path = argv[1];

    int fd_kbd = open(path, O_RDWR);

    if(fd_kbd <= 0) {
        printf("error open keyboard:%s/n", strerror(errno));
        return -1;
    }

    simulate_key(fd_kbd, key_code, 1);
    simulate_key(fd_kbd, key_code, 0);

    close(fd_kbd);

    return 0;
}               /* ----------  end of function main  ---------- */

触发单击屏幕事件

public void myClickEvent(float x, float y) {
        long firstTime = SystemClock.uptimeMillis();
        final MotionEvent firstEvent = MotionEvent.obtain(firstTime, firstTime,
                MotionEvent.ACTION_DOWN, x, y, 0);
    
        long secondTime = firstTime + 30;
        final MotionEvent secondEvent = MotionEvent.obtain(secondTime,
                secondTime, MotionEvent.ACTION_UP, x, y, 0);

        dispatchTouchEvent(firstEvent);
        dispatchTouchEvent(secondEvent);
    }

public void myClickEvent(float x, float y) {
        long firstTime = SystemClock.uptimeMillis();
        final MotionEvent firstEvent = MotionEvent.obtain(firstTime, firstTime,
                MotionEvent.ACTION_DOWN, x, y, 0);
    
        long secondTime = firstTime + 30;
        final MotionEvent secondEvent = MotionEvent.obtain(secondTime,
                secondTime, MotionEvent.ACTION_UP, x, y, 0);

        dispatchTouchEvent(firstEvent);
        dispatchTouchEvent(secondEvent);
    }

sendevent /dev/input/event0 [TYPE] [CODE] [VALUE]

onTouchEvent

KEYCODE_UNKNOWN=0;

KEYCODE_SOFT_LEFT=1;

KEYCODE_SOFT_RIGHT=2;

KEYCODE_HOME=3;

KEYCODE_BACK=4;

KEYCODE_CALL=5;

KEYCODE_ENDCALL=6;

KEYCODE_0=7;

KEYCODE_1=8;

KEYCODE_2=9;

KEYCODE_3=10;

KEYCODE_4=11;

KEYCODE_5=12;

KEYCODE_6=13;

KEYCODE_7=14;

KEYCODE_8=15;

KEYCODE_9=16;

KEYCODE_STAR=17;

KEYCODE_POUND=18;

KEYCODE_DPAD_UP=19;

KEYCODE_DPAD_DOWN=20;

KEYCODE_DPAD_LEFT=21;

KEYCODE_DPAD_RIGHT=22;

KEYCODE_DPAD_CENTER=23;

KEYCODE_VOLUME_UP=24;

KEYCODE_VOLUME_DOWN=25;

KEYCODE_POWER=26;

KEYCODE_CAMERA=27;

KEYCODE_CLEAR=28;

KEYCODE_A=29;

KEYCODE_B=30;

KEYCODE_C=31;

KEYCODE_D=32;

KEYCODE_E=33;

KEYCODE_F=34;

KEYCODE_G=35;

KEYCODE_H=36;

KEYCODE_I=37;

KEYCODE_J=38;

KEYCODE_K=39;

KEYCODE_L=40;

KEYCODE_M=41;

KEYCODE_N=42;

KEYCODE_O=43;

KEYCODE_P=44;

KEYCODE_Q=45;

KEYCODE_R=46;

KEYCODE_S=47;

KEYCODE_T=48;

KEYCODE_U=49;

KEYCODE_V=50;

KEYCODE_W=51;

KEYCODE_X=52;

KEYCODE_Y=53;

KEYCODE_Z=54;

KEYCODE_COMMA=55;

KEYCODE_PERIOD=56;

KEYCODE_ALT_LEFT=57;

KEYCODE_ALT_RIGHT=58;

KEYCODE_SHIFT_LEFT=59;

KEYCODE_SHIFT_RIGHT=60;

KEYCODE_TAB=61;

KEYCODE_SPACE=62;

KEYCODE_SYM=63;

KEYCODE_EXPLORER=64;

KEYCODE_ENVELOPE=65;

KEYCODE_ENTER=66;

KEYCODE_DEL=67;

KEYCODE_GRAVE=68;

KEYCODE_MINUS=69;

KEYCODE_EQUALS=70;

KEYCODE_LEFT_BRACKET=71;

KEYCODE_RIGHT_BRACKET=72;

KEYCODE_BACKSLASH=73;

KEYCODE_SEMICOLON=74;

KEYCODE_APOSTROPHE=75;

KEYCODE_SLASH=76;

KEYCODE_AT=77;

KEYCODE_NUM=78;

KEYCODE_HEADSETHOOK=79;

KEYCODE_FOCUS=80;//*Camera*focus

KEYCODE_PLUS=81;

KEYCODE_MENU=82;

KEYCODE_NOTIFICATION=83;

KEYCODE_SEARCH=84;

KEYCODE_MEDIA_PLAY_PAUSE=85;

KEYCODE_MEDIA_STOP=86;

KEYCODE_MEDIA_NEXT=87;

KEYCODE_MEDIA_PREVIOUS=88;

KEYCODE_MEDIA_REWIND=89;

KEYCODE_MEDIA_FAST_FORWARD=90;

KEYCODE_MUTE=91;