Flutter › Implicit vs Explicit Animations
How does the specific curve parameter available on both implicit and explicit animations genuinely let you meaningfully control the actual pacing and overall feel of a given animation, beyond simply relying entirely on a plain, constant linear speed?
IntermediateAnswer
Both implicit animation widgets and explicit Tween based animations accept a curve parameter that genuinely defines exactly how that particular animation's own progress actually changes relative to its overall elapsed time, letting you achieve effects such as an animation that starts out relatively slowly and then noticeably accelerates, or one that produces a genuinely bouncy, distinctly playful feeling, and thoughtfully choosing an appropriately fitting curve for a specific given animation, rather than simply always using the plain default linear curve, can meaningfully and noticeably improve exactly how genuinely natural and polished that resulting animation actually feels to a user.
AnimatedContainer(
duration: Duration(milliseconds: 400),
curve: Curves.easeOutBack,
width: isExpanded ? 300 : 100,
)Real-world example An expandable card widget uses the easeOutBack curve specifically on its AnimatedContainer, producing a subtly playful, genuinely pleasing slight overshoot effect as the card smoothly expands, considerably more visually appealing than using the plain default linear curve instead.