#include "../../lv_examples.h" #if LV_USE_CHECKBOX && LV_BUILD_EXAMPLES static void event_handler(lv_event_t * e) { lv_event_code_t code = lv_event_get_code(e); lv_obj_t * obj = lv_event_get_target(e); if(code == LV_EVENT_VALUE_CHANGED) { const char * txt = lv_checkbox_get_text(obj); const char * state = lv_obj_get_state(obj) & LV_STATE_CHECKED ? "Checked" : "Unchecked"; LV_LOG_USER("%s: %s", txt, state); } } void lv_example_checkbox_1(void) { lv_obj_set_flex_flow(lv_scr_act(), LV_FLEX_FLOW_COLUMN); lv_obj_set_flex_align(lv_scr_act(), LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_CENTER); lv_obj_t * cb; cb = lv_checkbox_create(lv_scr_act()); lv_checkbox_set_text(cb, "Apple"); lv_obj_add_event_cb(cb, event_handler, LV_EVENT_ALL, NULL); cb = lv_checkbox_create(lv_scr_act()); lv_checkbox_set_text(cb, "Banana"); lv_obj_add_state(cb, LV_STATE_CHECKED); lv_obj_add_event_cb(cb, event_handler, LV_EVENT_ALL, NULL); cb = lv_checkbox_create(lv_scr_act()); lv_checkbox_set_text(cb, "Lemon"); lv_obj_add_state(cb, LV_STATE_DISABLED); lv_obj_add_event_cb(cb, event_handler, LV_EVENT_ALL, NULL); cb = lv_checkbox_create(lv_scr_act()); lv_obj_add_state(cb, LV_STATE_CHECKED | LV_STATE_DISABLED); lv_checkbox_set_text(cb, "Melon\nand a new line"); lv_obj_add_event_cb(cb, event_handler, LV_EVENT_ALL, NULL); lv_obj_update_layout(cb); } #endif