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mirror of https://github.com/lvgl/lvgl.git synced 2025-01-14 06:42:58 +08:00
lvgl/demos/keypad_encoder
_VIFEXTech 0d6c08105a
fix(demo): fix warning. (#3344)
* fix(demo): fix warning.

lvgl/demos/keypad_encoder/lv_demo_keypad_encoder.c:169:5: warning: "LV_EX_MOUSEWHEEL" is not defined, evaluates to 0 [-Wundef]
  169 | #if LV_EX_MOUSEWHEEL
      |     ^~~~~~~~~~~~~~~~

Signed-off-by: pengyiqiang <pengyiqiang@xiaomi.com>

* fix benchmark warning.

~/lvgl/demos/benchmark/lv_demo_benchmark.c:1069:33: warning: cast between incompatible function types from ‘void (*)(lv_obj_t , uint16_t)’ {aka ‘void ()(struct _lv_obj_t , short unsigned int)’} to ‘void ()(void , int32_t)’ {aka ‘void ()(void , int)’} [-Wcast-function-type]
1069 | lv_anim_set_exec_cb(&a, (lv_anim_exec_xcb_t) lv_arc_set_end_angle);
| ^
~/lvgl/demos/benchmark/lv_demo_benchmark.c: In function ‘fall_anim’:
~/lvgl/demos/benchmark/lv_demo_benchmark.c:1090:29: warning: cast between incompatible function types from ‘void ()(struct _lv_obj_t , lv_coord_t)’ {aka ‘void ()(struct _lv_obj_t , short int)’} to ‘void ()(void , int32_t)’ {aka ‘void ()(void *, int)’} [-Wcast-function-type]
1090 | lv_anim_set_exec_cb(&a, (lv_anim_exec_xcb_t) lv_obj_set_y);
|

Signed-off-by: pengyiqiang <pengyiqiang@xiaomi.com>

Co-authored-by: pengyiqiang <pengyiqiang@xiaomi.com>
2022-05-14 07:35:12 +02:00
..
2021-12-16 20:49:41 +01:00
2021-12-16 20:49:41 +01:00
2021-12-16 20:49:41 +01:00

Keypad and Encoder demo

Overview

LVGL allows you to control the widgets with keypad and/or encoder without touchpad. This demo shows how to handle buttons, drop-down lists, rollers, sliders, switches and text inputs without touchpad. Learn more about the touchpad-less usage of LVGL here.

Keypad and encoder navigation in LVGL embedded GUI library

Run the demo

  • In lv_conf.h or equivalent places set LV_USE_DEMO_KEYPAD_AND_ENCODER 1
  • After lv_init() and initializing the drivers call lv_demo_keypad_encoder()