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ndg/lib/lvgl/examples/others/gridnav/lv_example_gridnav_4.c

48 lines
1.4 KiB
C

#include "../../lv_examples.h"
#if LV_USE_GRIDNAV && LV_USE_FLEX && LV_BUILD_EXAMPLES
static void event_handler(lv_event_t * e)
{
lv_obj_t * obj = lv_event_get_target(e);
lv_obj_t * list = lv_obj_get_parent(obj);
LV_LOG_USER("Clicked: %s", lv_list_get_btn_text(list, obj));
}
/**
* Simple navigation on a list widget
*/
void lv_example_gridnav_4(void)
{
/*It's assumed that the default group is set and
*there is a keyboard indev*/
lv_obj_t * list = lv_list_create(lv_scr_act());
lv_gridnav_add(list, LV_GRIDNAV_CTRL_ROLLOVER);
lv_obj_align(list, LV_ALIGN_LEFT_MID, 0, 10);
lv_group_add_obj(lv_group_get_default(), list);
uint32_t i;
for(i = 0; i < 20; i++) {
char buf[32];
/*Add some separators too, they are not focusable by gridnav*/
if((i % 5) == 0) {
lv_snprintf(buf, sizeof(buf), "Section %d", i / 5 + 1);
lv_list_add_text(list, buf);
}
lv_snprintf(buf, sizeof(buf), "File %d", i + 1);
lv_obj_t * item = lv_list_add_btn(list, LV_SYMBOL_FILE, buf);
lv_obj_add_event_cb(item, event_handler, LV_EVENT_CLICKED, NULL);
lv_group_remove_obj(item); /*The default group adds it automatically*/
}
lv_obj_t * btn = lv_btn_create(lv_scr_act());
lv_obj_align(btn, LV_ALIGN_RIGHT_MID, 0, -10);
lv_obj_t * label = lv_label_create(btn);
lv_label_set_text(label, "Button");
}
#endif