The ultimate solution to prevent widget rebuild by flutter
Read moreHow do I rebuild a child’s widget?
A nice way to rebuild only a child widget when a value in the parent changes is to use ValueNotifier and ValueListenableBuilder . Add an instance of ValueNotifier to the parent’s state class, and wrap the widget you want to rebuild in a ValueListenableBuilder .
Read moreDoes setState rebuild the entire widget tree?
If you call setState() on WidgetB it’ll rebuild itself and it’s descendants, no matter if they are Stateless or Stateful Widgets.
Read moreDoes setState rebuild widget?
When setState() is called on a State, all descendent widgets rebuild . Therefore, localize the setState() call to the part of the subtree whose UI actually needs to change.
Read moreWhat are all the lifecycle of a StatefulWidget?
The lifecycle has the following simplified steps: createState() mounted == true . initState()
Read moreWhat is mounted in Flutter?
mounted property Null safety After creating a State object and before calling initState, the framework “mounts” the State object by associating it with a BuildContext . The State object remains mounted until the framework calls dispose, after which time the framework will never ask the State object to build again.
Read moreWhy we use mounted in Flutter?
The mounted property helps to avoid the error, when you trying to call setState before build . you don’t need a boolean operator to check a boolean value.3 Şub 2019
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