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Small details that build taste in Flutter.
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Put meaningful icons on the switch thumb
Be creative with your Material Switches. Put icons on the thumb, like these three from bunpod.app:
It takes a WidgetStateProperty. selected is the on state, any covers everything else:
Switch(
value: isDark,
thumbIcon: const WidgetStateProperty<Icon?>.fromMap({
WidgetState.selected: Icon(
Icons.dark_mode_rounded,
),
WidgetState.any: Icon(
Icons.light_mode_rounded,
),
}),
onChanged: ...,
)Each switch in the video picks its icons differently:
Dark theme: moon when on, sun when off. Both sides are a real state, so both get a real icon.
Download over Wi-Fi only: Wi-Fi when on, X when off. Off just means it's not enabled, so a plain X. Don't leave the off side without an icon: the thumb gets smaller and bigger as you toggle.
New episode alerts: check and X. The tile already has a bell icon, the thumb doesn't repeat it.
One note on the title: it must be true when the switch is on. "Dark theme", not "Theme". Screen readers read only the title, never the icons.
Be creative: the map accepts any WidgetState (pressed, dragged, hovered, focused, scrolledUnder, disabled, error), and you can combine them with &:
WidgetState.disabled & WidgetState.selected: Icon(...)A note on iOS: iOS apps rarely use thumb icons, so think twice before adding them to Switch.adaptive or CupertinoSwitch.