Android 中input学习--键盘/触摸屏/手柄。。。模拟器

最新推荐文章于 2024-11-27 22:44:35 发布

原创最新推荐文章于 2024-11-27 22:44:35 发布 · 1.4k 阅读

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文章标签：

#input #android #struct #扩展

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本文探讨了在Android中如何模拟键盘、触摸屏和手柄等输入设备，并通过举例介绍如何利用代码模拟输入事件，包括按下和释放操作。同时，文章提及了输入设备的扩展可能性。

上一篇说过/dev/input/下的设备是各种输入设备

怎么用自己的设备/程序模拟这些输入设备呢？------直接写

比如下面这段代码就可以模拟压下，放开事件

怎么扩展，留备后用

static char TOUCH_DEVICE[256] = "/dev/input/event3";
int touchfd = -1;
static void init_touch()
{
	if((touchfd = open(TOUCH_DEVICE, O_RDWR)) == -1)
	{
		printf("cannot open touch device %s\n", TOUCH_DEVICE);
	}
}
static void cleanup_touch()
{
	if(touchfd != -1)
	{
		close(touchfd);
	}
}
void TouchEvent(int down, int x, int y)
{
	struct input_event ev;

	memset(&ev, 0, sizeof(ev));
	gettimeofday(&ev.time,0);
	ev.type = EV_KEY;
	ev.code = BTN_TOUCH;
	ev.value = down;
	if(write(touchfd, &ev, sizeof(ev)) < 0)
	{
		printf("write event failed, %s\n", strerror(errno));
	}

	gettimeofday(&ev.time,0);
	ev.type = EV_ABS;
	ev.code = ABS_X;
	ev.value = x;
	if(write(touchfd, &ev, sizeof(ev)) < 0)
	{
		printf("write event failed, %s\n", strerror(errno));
	}

	gettimeofday(&ev.time,0);
	ev.type = EV_ABS;
	ev.code = ABS_Y;
	ev.value = y;
	if(write(touchfd, &ev, sizeof(ev)) < 0)
	{
		printf("write event failed, %s\n", strerror(errno));
	}

	gettimeofday(&ev.time,0);
	ev.type = EV_SYN;
	ev.code = 0;
	ev.value = 0;
	if(write(touchfd, &ev, sizeof(ev)) < 0)
	{
		printf("write event failed, %s\n", strerror(errno));
	}
}

int main()
{
	init_touch();
	TouchEvent(1,200,400);
	TouchEvent(0,200,400);
	cleanup_touch();
	return 0;
}