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
