I have already made a sequence frame animation in Unity with Mecanim system. But I do not want to setup Mecanim's animator component and animator controller. I think Legacy Animation System is much lighter and easier for my project.
I first added Animation and Sprite Renderer component to an object.
And then using Animation window to create a property of Sprite Renderer's sprite.
Finally, added every sprite to key frame and make sequence as usual.
But After the settings, I found the sprite renderer or image component can not work. The animation component could not drive the SpriteRenderer.sprite or Image.sprite.
So is it must be achieved by script?