acid-drop

- Hacking the planet from a LilyGo T-Deck using custom firmware
git clone git://git.acid.vegas/acid-drop.git
lv_example_get_started_1.c (1157B)
      1 #include "../lv_examples.h"
      2 #if LV_BUILD_EXAMPLES && LV_USE_BTN
      3 
      4 static void btn_event_cb(lv_event_t * e)
      5 {
      6     lv_event_code_t code = lv_event_get_code(e);
      7     lv_obj_t * btn = lv_event_get_target(e);
      8     if(code == LV_EVENT_CLICKED) {
      9         static uint8_t cnt = 0;
     10         cnt++;
     11 
     12         /*Get the first child of the button which is the label and change its text*/
     13         lv_obj_t * label = lv_obj_get_child(btn, 0);
     14         lv_label_set_text_fmt(label, "Button: %d", cnt);
     15     }
     16 }
     17 
     18 /**
     19  * Create a button with a label and react on click event.
     20  */
     21 void lv_example_get_started_1(void)
     22 {
     23     lv_obj_t * btn = lv_btn_create(lv_scr_act());     /*Add a button the current screen*/
     24     lv_obj_set_pos(btn, 10, 10);                            /*Set its position*/
     25     lv_obj_set_size(btn, 120, 50);                          /*Set its size*/
     26     lv_obj_add_event_cb(btn, btn_event_cb, LV_EVENT_ALL, NULL);           /*Assign a callback to the button*/
     27 
     28     lv_obj_t * label = lv_label_create(btn);          /*Add a label to the button*/
     29     lv_label_set_text(label, "Button");                     /*Set the labels text*/
     30     lv_obj_center(label);
     31 }
     32 
     33 #endif
     34