我尝试使用/ dev / uinput来模拟Android中的触摸事件,有些代码如下:
首先打开" / dev / uinput"文件,并创建一个udev:
static int open_uinput_device(){
uinp_fd = open(uinput_deivce_path, O_WRONLY | O_NDELAY);
if (uinp_fd <= 0) {
debug("could not open %s, %s", uinput_deivce_path, strerror(errno));
return -1;
}
memset(&ui_dev, 0, sizeof(ui_dev));
strncpy(ui_dev.name, "RemoteTV Event", UINPUT_MAX_NAME_SIZE);
ui_dev.id.bustype = BUS_USB;
ui_dev.id.vendor = 0x1341;
ui_dev.id.product = 0x0001;
ui_dev.id.version = 4;
ui_dev.absmin[ABS_MT_SLOT] = 0;
ui_dev.absmax[ABS_MT_SLOT] = 9;
ui_dev.absmin[ABS_MT_TOUCH_MAJOR] = 0;
ui_dev.absmax[ABS_MT_TOUCH_MAJOR] = 255;
ui_dev.absmin[ABS_MT_POSITION_X] = 0;
ui_dev.absmax[ABS_MT_POSITION_X] = screen_width - 1;
ui_dev.absmin[ABS_MT_POSITION_Y] = 0;
ui_dev.absmax[ABS_MT_POSITION_Y] = screen_Height - 1;
ui_dev.absmin[ABS_MT_TRACKING_ID] = 0;
ui_dev.absmax[ABS_MT_TRACKING_ID] = 65535;
ui_dev.absmin[ABS_MT_PRESSURE] = 0;
ui_dev.absmax[ABS_MT_PRESSURE] = 30;
ui_dev.absmin[ABS_MT_TOOL_TYPE] = 0;
ui_dev.absmax[ABS_MT_TOOL_TYPE] = 1;
//enable direct
ioctl(uinp_fd, UI_SET_PROPBIT, INPUT_PROP_DIRECT);
//enable mouse event
ioctl(uinp_fd, UI_SET_EVBIT, EV_REL);
ioctl(uinp_fd, UI_SET_RELBIT, REL_X);
ioctl(uinp_fd, UI_SET_RELBIT, REL_Y);
//enable touch event
ioctl(uinp_fd, UI_SET_EVBIT, EV_ABS);
for (i = 0; i <= ABS_CNT; i++) {
ioctl(uinp_fd, UI_SET_ABSBIT, i);
}
ioctl(uinp_fd, UI_SET_EVBIT, EV_SYN);
ioctl(uinp_fd, UI_SET_EVBIT, EV_KEY);
for (i = 0; i < 256; i++) {
ioctl(uinp_fd, UI_SET_KEYBIT, i);
}
ioctl(uinp_fd, UI_SET_KEYBIT, BTN_MOUSE);
ioctl(uinp_fd, UI_SET_KEYBIT, BTN_TOUCH);
ioctl(uinp_fd, UI_SET_KEYBIT, BTN_MOUSE);
ioctl(uinp_fd, UI_SET_KEYBIT, BTN_LEFT);
ioctl(uinp_fd, UI_SET_KEYBIT, BTN_MIDDLE);
ioctl(uinp_fd, UI_SET_KEYBIT, BTN_RIGHT);
ioctl(uinp_fd, UI_SET_KEYBIT, BTN_FORWARD);
ioctl(uinp_fd, UI_SET_KEYBIT, BTN_BACK);
write(uinp_fd, &ui_dev, sizeof(ui_dev));
if (ioctl(uinp_fd, UI_DEV_CREATE)) {
debug("Unable to create UINPUT device.");
return -1;
}
return 0;
}
然后在uinput_fd中编写一些事件,代码段如下:
int len;
// Move pointer to (100,100) location
memset(&event, 0, sizeof(event));
gettimeofday(&event.time, NULL);
event.type = type;
event.code = code;
event.value = value;
len = write(uinp_fd, &event, sizeof(event));
debug("SendEventToUinput done:%d %d %d",type, code, value);
我可以通过输入命令&#34; getevent -l&#34;看到终端上/ dev / input / event7上写的事件,如下所示:
/dev/input/event7: EV_KEY BTN_TOUCH DOWN /dev/input/event7: EV_ABS ABS_MT_TRACKING_ID 00000027 /dev/input/event7: EV_ABS ABS_MT_TOUCH_MAJOR 0000005d /dev/input/event7: EV_ABS ABS_MT_POSITION_X 00000251 /dev/input/event7: EV_ABS ABS_MT_POSITION_Y 0000048f /dev/input/event7: EV_SYN SYN_REPORT 00000000 /dev/input/event7: EV_ABS ABS_MT_TOUCH_MAJOR 00000045 /dev/input/event7: EV_SYN SYN_REPORT 00000000 /dev/input/event7: EV_ABS ABS_MT_TRACKING_ID ffffffff /dev/input/event7: EV_SYN SYN_REPORT 00000000 /dev/input/event7: EV_KEY BTN_TOUCH UP /dev/input/event7: EV_SYN SYN_REPORT 00000000
但屏幕上没有显示,如果我在&#34; dev / input / event4&#34;上发送相同的事件它可以工作吗?为什么&#34; dev / uinput&#34;是无效的?
有人帮助我。
答案 0 :(得分:1)
执行此部分时:
Automatically gzip the file. This will set options.metadata.contentEncoding to gzip.
您还可以设置ABS_X和ABS_Y位。 ABS_X和ABS_Y位不能与ABS_MT_POSITION_X和ABS_MT_POSITION_Y位一起设置。
我建议只设置你将使用的ABS位。
答案 1 :(得分:0)
在我的推荐中,你应该使用这样的adb命令行:
adb shell sendevent /dev/input/event[event_number_here] input_value_here
前:
adb shell sendevent /dev/input/event2 1 315 1
adb shell sendevent /dev/input/event2 0 0 0
或者你可以尝试这个命令:
adb shell input tap x y
ex:adb shell输入tap 150 150
答案 2 :(得分:0)
你的ui_dev.name已经存在,请使用另一个,它会正常工作。
答案 3 :(得分:0)
查看adb shell输入的实现: https://android.googlesource.com/platform/frameworks/base/+/HEAD/cmds/input/src/com/android/commands/input/Input.java 有坐标的类型转换。可能就是这样的原因,当使用adb shell getevent捕获输入时,发送给输入事件的完全相同的坐标会转换为不同的坐标。我仍然没有解决方案,但是您可能会发现此信息有用-要使坐标不转换,需要以浮点形式在AOSP级别注入它。 -batcilla
答案 4 :(得分:-1)
尝试更改分配参数的顺序:
strncpy(ui_dev.name, "RemoteTV Event", UINPUT_MAX_NAME_SIZE);
制作:
strncpy(ui_dev.name, UINPUT_MAX_NAME_SIZE, "RemoteTV Event");