36 lines
773 B
C
36 lines
773 B
C
#include "../../lv_examples.h"
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#if LV_BUILD_EXAMPLES
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static void drag_event_handler(lv_event_t * e)
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{
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lv_obj_t * obj = lv_event_get_target(e);
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lv_indev_t * indev = lv_indev_get_act();
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if(indev == NULL) return;
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lv_point_t vect;
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lv_indev_get_vect(indev, &vect);
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lv_coord_t x = lv_obj_get_x(obj) + vect.x;
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lv_coord_t y = lv_obj_get_y(obj) + vect.y;
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lv_obj_set_pos(obj, x, y);
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}
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/**
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* Make an object dragable.
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*/
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void lv_example_obj_2(void)
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{
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lv_obj_t * obj;
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obj = lv_obj_create(lv_scr_act());
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lv_obj_set_size(obj, 150, 100);
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lv_obj_add_event_cb(obj, drag_event_handler, LV_EVENT_PRESSING, NULL);
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lv_obj_t * label = lv_label_create(obj);
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lv_label_set_text(label, "Drag me");
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lv_obj_center(label);
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}
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#endif
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