rt-thread/examples/gui/demo_view_combobox.c

/*
 * 程序清单：label控件演示
 *
 * 这个例子会在创建出的view上添加几个不同类型的label控件
 */
#include "demo_view.h"
#include <rtgui/widgets/combobox.h>

struct rtgui_listbox_item items[] = 
{
	{"item 1", RT_NULL},
	{"item 2", RT_NULL},
	{"item 3", RT_NULL},
	{"item 4", RT_NULL},
	{"item 5", RT_NULL},
};

/* 创建用于演示combobox控件的视图 */
rtgui_view_t* demo_view_combobox(rtgui_workbench_t* workbench)
{
	rtgui_rect_t rect;
	rtgui_view_t* view;
	rtgui_combobox_t* box;

	/* 先创建一个演示用的视图 */
	view = demo_view(workbench, "ComboBox View");

	/* 获得视图的位置信息 */
	demo_view_get_rect(view, &rect);
	rect.x1 += 5;
	rect.x2 -= 5;
	rect.y1 += 5;
	rect.y2 = rect.y1 + 20;
	/* 创建一个label控件 */
	box = rtgui_combobox_create(items, sizeof(items)/sizeof(items[0]), &rect);
	/* view是一个container控件，调用add_child方法添加这个box控件 */
	rtgui_container_add_child(RTGUI_CONTAINER(view), RTGUI_WIDGET(box));

	return view;
}