Explain the lifecycle of a State object
WHAT IT TESTS: Your grasp of StatefulWidget state transitions and framework hook timing. ANSWER OUTLINE: List initState through dispose, emphasizing didUpdateWidget reacts to parent config changes.
WHAT IT TESTS: Your deep understanding of StatefulWidget state transitions and when to hook into them for initialization, updates, and cleanup. ANSWER OUTLINE: Walk through initState, didChangeDependencies, build, didUpdateWidget, deactivate, and dispose in order; explain that didUpdateWidget receives the old widget so you can compare properties and react to parent configuration changes, such as restarting an animation controller.
Read the original → api.flutter.dev
- #flutter
- #statefulwidget
- #lifecycle
- #interview
- #advanced
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