previous page__: Creating a Blend Transition
=== Elementary Animations ===
==== Creating a Fade Effect ====
The fade effect works exactly the same way as the blend effect.
First create the button:
<code c>
The fade button
Evas_Object *btn_fade = elm_button_add(win);
elm_object_text_set(btn_fade, “Fade”);
evas_object_size_hint_weight_set(btn_fade, EVAS_HINT_FILL, EVAS_HINT_FILL);
evas_object_show(btn_fade);
evas_object_smart_callback_add(btn_fade, “clicked”, _btn_fade_cb, &anim);
elm_box_pack_end(right_vbox, btn_fade);
</code>
Then add the button's callback:
<code c>
static void _btn_fade_cb(void *data, Evas_Object *btn, void *ev)
{
Animations *anim = (Animations *)data;
Setting the button text
elm_object_text_set(anim->button, “Fade”);
_fade_effect(anim->button, anim->buttonbck);
}
</code>
The animation function calls elm_transit_effect_fade_add instead of
elm_transit_effect_blend_add.
<code c>
static void _fade_effect(Evas_Object *obj, Evas_Object *obj2)
{
Elm_Transit *trans;
trans = elm_transit_add();
elm_transit_object_add(trans, obj);
elm_transit_object_add(trans, obj2);
elm_transit_effect_fade_add(trans);
elm_transit_duration_set(trans, 3.0);
elm_transit_go(trans);
}
</code>
next page__: Creating a Flip on y Axis