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#include "../../lv_examples.h"
#if LV_USE_SLIDER && LV_BUILD_EXAMPLES
static void slider_event_cb(lv_event_t * e);
static lv_obj_t * slider_label;
/**
* Slider with opposite direction
*/
void lv_example_slider_4(void)
{
/*Create a slider in the center of the display*/
lv_obj_t * slider = lv_slider_create(lv_screen_active());
lv_obj_center(slider);
lv_obj_add_event_cb(slider, slider_event_cb, LV_EVENT_VALUE_CHANGED, NULL);
/*Reverse the direction of the slider*/
lv_slider_set_range(slider, 100, 0);
/*Create a label below the slider*/
slider_label = lv_label_create(lv_screen_active());
lv_label_set_text(slider_label, "0%");
lv_obj_align_to(slider_label, slider, LV_ALIGN_OUT_BOTTOM_MID, 0, 10);
}
static void slider_event_cb(lv_event_t * e)
{
lv_obj_t * slider = lv_event_get_target(e);
char buf[8];
lv_snprintf(buf, sizeof(buf), "%d%%", (int)lv_slider_get_value(slider));
lv_label_set_text(slider_label, buf);
lv_obj_align_to(slider_label, slider, LV_ALIGN_OUT_BOTTOM_MID, 0, 10);
}
#endif
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