How can I create Instagram's changing gradient background in flutter

Issue

How can I create Instagram like auto changing gradient background color in flutter

Solution

I do not know exactly what you mean by "Instagram-like auto changing gradient" but I am guessing you mean a smooth color transition in a container. For that, there are two main approaches.

• The simplest one: use an Animated Container and assign its color property to a local variable that you can change later on using setState(). AnimatedContainer will interpolate the values between the initial and the final color in the states, creating the effect.

• Use an Animated Builder to create a Tween that interpolates colors and control when and how it should change with an AnimationController. In this Medium article you can find more information on this approach.

Answered By - drogel