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Small details that build taste in Flutter.
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Missing haptic types, and which to use when
Flutter's built-in HapticFeedback covers only a few generic types. The haptic_feedback package gives you more.
Wrap it in a helper so you don't repeat the canVibrate check everywhere:
import 'package:haptic_feedback/haptic_feedback.dart';
class HapticsHelper {
HapticsHelper._();
static bool? _canVibrate;
static Future<void> _vibrate(HapticsType type) async {
_canVibrate ??= await Haptics.canVibrate();
if (_canVibrate ?? false) {
await Haptics.vibrate(type);
}
}
// Declarative shorthand for each type
static Future<void> success() => _vibrate(HapticsType.success);
static Future<void> warning() => _vibrate(HapticsType.warning);
static Future<void> error() => _vibrate(HapticsType.error);
static Future<void> light() => _vibrate(HapticsType.light);
static Future<void> medium() => _vibrate(HapticsType.medium);
static Future<void> heavy() => _vibrate(HapticsType.heavy);
static Future<void> selection() => _vibrate(HapticsType.selection);
}Then just:
await HapticsHelper.success();There's no formula for which haptic goes where. Learn these common pairings, then trust your own judgement. Iterate until you trust your own judgement:
success: user completes a purchase, form submits successfully, file upload finishes, task marked as done.
warning: incomplete form, back button with unsaved changes, storage almost full
error: wrong password, payment declined, network request failed
light: tap a like button, toggle a switch, open a bottom sheet, tap a tab bar item
medium: pull-to-refresh triggers, long press on a message, drag and drop an item, slider reaches a snap point
heavy: confirm account deletion, clear all data, force close a session, complete a high-value transaction
rigid: dragging elements to snap positions, resizing UI elements, rearranging items on a board, element snaps to grid
soft: toggling a checkbox, adjusting settings in a relaxation app, gentle confirmations
selection: scroll through a date picker, pick from a dropdown, swipe between options, select a color or size
The rule: "The best haptic experience is one that people may not be conscious of, but miss when it's turned off" Apple HIG