4f541cf523
Co-authored-by: Zoltan Janosy <zjanosy@fishman.com> Co-authored-by: Gabor Kiss-Vamosi <kisvegabor@gmail.com>
26 lines
730 B
C
26 lines
730 B
C
#include "../../lv_examples.h"
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#if LV_USE_OBSERVER && LV_USE_SLIDER && LV_USE_LABEL && LV_BUILD_EXAMPLES
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static lv_subject_t temperature_subject;
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/**
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* A slider sends a message on value change and a label display's that value
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*/
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void lv_example_observer_1(void)
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{
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lv_subject_init_int(&temperature_subject, 28);
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/*Create a slider in the center of the display*/
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lv_obj_t * slider = lv_slider_create(lv_scr_act());
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lv_obj_center(slider);
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lv_slider_bind_value(slider, &temperature_subject);
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/*Create a label below the slider*/
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lv_obj_t * label = lv_label_create(lv_scr_act());
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lv_obj_align(label, LV_ALIGN_CENTER, 0, 30);
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lv_label_bind_text(label, &temperature_subject, "%d °C");
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}
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#endif
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