42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
#include "../../lv_examples.h"
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#if LV_USE_ROLLER && LV_BUILD_EXAMPLES
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static void event_handler(lv_event_t * e)
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{
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lv_event_code_t code = lv_event_get_code(e);
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lv_obj_t * obj = lv_event_get_target(e);
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if(code == LV_EVENT_VALUE_CHANGED) {
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char buf[32];
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lv_roller_get_selected_str(obj, buf, sizeof(buf));
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LV_LOG_USER("Selected month: %s\n", buf);
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}
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}
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/**
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* An infinite roller with the name of the months
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*/
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void lv_example_roller_1(void)
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{
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lv_obj_t * roller1 = lv_roller_create(lv_scr_act());
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lv_roller_set_options(roller1,
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"January\n"
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"February\n"
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"March\n"
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"April\n"
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"May\n"
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"June\n"
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"July\n"
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"August\n"
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"September\n"
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"October\n"
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"November\n"
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"December",
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LV_ROLLER_MODE_INFINITE);
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lv_roller_set_visible_row_count(roller1, 4);
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lv_obj_center(roller1);
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lv_obj_add_event_cb(roller1, event_handler, LV_EVENT_ALL, NULL);
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}
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#endif
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