When to use setState() ? When we want to change the UI of the screen . We don’t need to call setState every time we change a variable. We call setState only when we want the change in a variable to reflect on the UI of the screen.
Read moreDoes Flutter have lifecycle?
Flutter is a mobile framework that helps to modernize both iOS and Android app from a single codebase. We will also implement a Widget Lifecycle demo, describe its properties, and use them in your flutter applications. …
Read moreWhat is Flutter app lifecycle?
The observable lifecycle events are: inactive — The application is in an inactive state and is not receiving user input. … paused — The application is not currently visible to the user, not responding to user input, and running in the background. This is equivalent to onPause() in Android.
Read moreHow do I know if a widget is visible in a viewport?
print(‘Widget is visible in the viewport at position: $yPosition’); // do stuff… } else { print(‘Widget is not visible. ‘); // do stuff… }27 Haz 2018
Read moreIs visible widget a Flutter?
Flutter Visibility Widget Visibility is a widget that is useful to show or hide other widgets in flutter . We have to wrap the widget we want to show or hide inside the visibility widget as a child. This widget has a property called visible which controls the state (visible or invisible) of the child.
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