What does setState do in flutter?

setState is a way to dynamically change the UI . We call it inside the State Object class of the StatefulWidget. Calling setState marks the corresponding Widget dirty .20 Haz 2021

The ultimate solution to prevent widget rebuild by flutter

The preferred solution is to cancel the timer or stop listening to the animation in the dispose() callback . Another solution is to check the “mounted” property of this object before calling setState() to ensure the object is still in the tree.10 Oca 2022