1 #include "../lv_examples.h"
2 #if LV_BUILD_EXAMPLES && LV_USE_LIST
3
4 static uint32_t btn_cnt = 1;
5
float_btn_event_cb(lv_event_t * e)6 static void float_btn_event_cb(lv_event_t * e)
7 {
8 lv_event_code_t code = lv_event_get_code(e);
9 lv_obj_t * float_btn = lv_event_get_target(e);
10
11 if(code == LV_EVENT_CLICKED) {
12 lv_obj_t * list = lv_event_get_user_data(e);
13 char buf[32];
14 lv_snprintf(buf, sizeof(buf), "Track %d", (int)btn_cnt);
15 lv_obj_t * list_btn = lv_list_add_btn(list, LV_SYMBOL_AUDIO, buf);
16 btn_cnt++;
17
18 lv_obj_move_foreground(float_btn);
19
20 lv_obj_scroll_to_view(list_btn, LV_ANIM_ON);
21 }
22 }
23
24 /**
25 * Create a list with a floating button
26 */
lv_example_scroll_3(void)27 void lv_example_scroll_3(void)
28 {
29 lv_obj_t * list = lv_list_create(lv_scr_act());
30 lv_obj_set_size(list, 280, 220);
31 lv_obj_center(list);
32
33 for(btn_cnt = 1; btn_cnt <= 2; btn_cnt++) {
34 char buf[32];
35 lv_snprintf(buf, sizeof(buf), "Track %d", (int)btn_cnt);
36 lv_list_add_btn(list, LV_SYMBOL_AUDIO, buf);
37 }
38
39 lv_obj_t * float_btn = lv_btn_create(list);
40 lv_obj_set_size(float_btn, 50, 50);
41 lv_obj_add_flag(float_btn, LV_OBJ_FLAG_FLOATING);
42 lv_obj_align(float_btn, LV_ALIGN_BOTTOM_RIGHT, 0, -lv_obj_get_style_pad_right(list, LV_PART_MAIN));
43 lv_obj_add_event_cb(float_btn, float_btn_event_cb, LV_EVENT_ALL, list);
44 lv_obj_set_style_radius(float_btn, LV_RADIUS_CIRCLE, 0);
45 lv_obj_set_style_bg_img_src(float_btn, LV_SYMBOL_PLUS, 0);
46 lv_obj_set_style_text_font(float_btn, lv_theme_get_font_large(float_btn), 0);
47 }
48
49 #endif
50
