How to deal with unwanted widget build?

Question

For various reasons, sometimes the build method of my widgets is called again.

I know that it happens because a parent updated. But this causes undesired

Answer 1

You can prevent unwanted build calling, using these way

1) Create child Statefull class for individual small part of UI

2) Use Provider library, so using it you can stop unwanted build method calling

In these below situation build method call

• After calling initState
  
• After calling didUpdateWidget
  
• when setState() is called.
  
• when keyboard is open
  
• when screen orientation changed
  
• Parent widget is build then child widget also rebuild