LVGL 7.11 tileview界面循环切换

定义变量

static const lv_point_t valid_pos2[] = { {0, 0}, {0, 1} ,{0,2},{0,3},{0,4}, {1,2} ,{2,2},{3,2} }; static int delay_cnt; static int last_hor_pos; #define VALID_POS_LEN sizeof(valid_pos2)/sizeof(valid_pos2[0]) typedef lv_obj_t* (*tileview_elem)(lv_obj_t* scr); lv_obj_t* create_tileview_elem_00_03(lv_obj_t* scr) { lv_obj_t* btn = lv_btn_create(scr, NULL); lv_obj_align(btn, scr, LV_ALIGN_CENTER, 0, 0); lv_obj_t* label = lv_label_create(btn, NULL); lv_label_set_text_fmt(label, "Button 0_3"); return btn; } lv_obj_t* create_tileview_elem_0_1(lv_obj_t* scr) { lv_obj_t* btn = lv_btn_create(scr, NULL); lv_obj_align(btn, scr, LV_ALIGN_CENTER, 0, 0); lv_obj_t* label = lv_label_create(btn, NULL); lv_label_set_text_fmt(label, "Button 0_1"); return btn; } lv_obj_t* create_tileview_elem_0_2(lv_obj_t* scr) { lv_obj_t* btn = lv_btn_create(scr, NULL); lv_obj_align(btn, scr, LV_ALIGN_CENTER, 0, 0); lv_obj_t* label = lv_label_create(btn, NULL); lv_label_set_text_fmt(label, "Button 0_2"); return btn; } lv_obj_t* create_tileview_elem_0_3(lv_obj_t* scr) { lv_obj_t* btn = lv_btn_create(scr, NULL); lv_obj_align(btn, scr, LV_ALIGN_CENTER, 0, 0); lv_obj_t* label = lv_label_create(btn, NULL); lv_label_set_text_fmt(label, "Button 0_3"); return btn; } lv_obj_t* create_tileview_elem_04_01(lv_obj_t* scr) { lv_obj_t* btn = lv_btn_create(scr, NULL); lv_obj_align(btn, scr, LV_ALIGN_CENTER, 0, 0); lv_obj_t* label = lv_label_create(btn, NULL); lv_label_set_text_fmt(label, "Button 0_1"); return btn; } lv_obj_t* create_tileview_elem_1_2(lv_obj_t* scr) { lv_obj_t* btn = lv_btn_create(scr, NULL); lv_obj_align(btn, scr, LV_ALIGN_CENTER, 0, 0); lv_obj_t* label = lv_label_create(btn, NULL); lv_label_set_text_fmt(label, "Button 1_2"); return btn; } lv_obj_t* create_tileview_elem_2_2(lv_obj_t* scr) { lv_obj_t* btn = lv_btn_create(scr, NULL); lv_obj_align(btn, scr, LV_ALIGN_CENTER, 0, 0); lv_obj_t* label = lv_label_create(btn, NULL); lv_label_set_text_fmt(label, "Button 2_2"); return btn; } lv_obj_t* create_tileview_elem_3_2(lv_obj_t* scr) { lv_obj_t* btn = lv_btn_create(scr, NULL); lv_obj_align(btn, scr, LV_ALIGN_CENTER, 0, 0); lv_obj_t* label = lv_label_create(btn, NULL); lv_label_set_text_fmt(label, "Button 3_2"); return btn; } const tileview_elem s_tileview[VALID_POS_LEN] = { create_tileview_elem_00_03, create_tileview_elem_0_1, create_tileview_elem_0_2, create_tileview_elem_0_3, create_tileview_elem_04_01, create_tileview_elem_1_2, create_tileview_elem_2_2, create_tileview_elem_3_2, }; 

定时器回调函数

static void page_task(struct _lv_task_t* task) { if (lv_anim_count_running()) return; lv_obj_t *obj = task->user_data; if (delay_cnt) { if (--delay_cnt == 0) { lv_coord_t x, y; lv_tileview_get_tile_act(obj, &x, &y); if (x == 0 && y == 0) { lv_tileview_set_tile_act(obj, 0, 3, LV_ANIM_OFF); } else if (x == 0 && y == last_hor_pos) { lv_tileview_set_tile_act(obj, 0, 1, LV_ANIM_OFF); } } } } 

事件处理回调函数

void btn_handler(struct _lv_obj_t* obj, lv_event_t event) { LV_LOG_USER("--event %d", event); if (event == LV_EVENT_PRESSING) { delay_cnt = 10; } } 

创建tileview

lv_obj_t * init_main_tileview(void) { lv_obj_t* tv = lv_tileview_create(lv_scr_act(), NULL); lv_obj_set_style_local_bg_opa(tv, LV_TILEVIEW_PART_SCROLLBAR, LV_STATE_DEFAULT, LV_OPA_TRANSP); lv_obj_set_style_local_bg_opa(tv, LV_TILEVIEW_PART_BG, LV_STATE_DEFAULT, LV_OPA_TRANSP); lv_tileview_set_valid_positions(tv, valid_pos2, VALID_POS_LEN); lv_tileview_set_edge_flash(tv, true); lv_obj_set_size(tv, LV_HOR_RES, LV_VER_RES); lv_obj_set_pos(tv, 0, 0); last_hor_pos = 0; for (int i = 0; i < VALID_POS_LEN; i++) { if (valid_pos2[i].x == 0) { if (valid_pos2[i].y > last_hor_pos) last_hor_pos = valid_pos2[i].y; } } LV_LOG_USER("--last_hor_pos %d", last_hor_pos); for (int i = 0; i < VALID_POS_LEN; i++) { lv_obj_t* cont = s_tileview[i](tv); lv_obj_set_size(cont, LV_HOR_RES, LV_HOR_RES); lv_obj_set_pos(cont, valid_pos2[i].x* LV_HOR_RES, valid_pos2[i].y* LV_HOR_RES); lv_tileview_add_element(tv, cont); if (i == 1 || i == last_hor_pos-1) { lv_obj_set_event_cb(cont, btn_handler); lv_obj_set_user_data(cont, tv); } } lv_task_create(page_task, 10, LV_TASK_PRIO_LOW, tv); lv_tileview_set_tile_act(tv, 0, 2, LV_ANIM_OFF); return tv; } 

运行效果