talksik/stream-chat-flutter
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migrate ui

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This commit is contained in:
Salvatore Giordano
2021-04-30 14:58:50 +02:00
parent 2c02f0f631
commit 34888d0fff
103 changed files with 2622 additions and 2455 deletions
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packages/stream_chat_flutter/lib/src/swipeable.dart
+16 -16
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@@ -8,15 +8,15 @@ import 'stream_chat_theme.dart';
class Swipeable extends StatefulWidget {
final Widget child;
final Widget backgroundIcon;
final VoidCallback onSwipeStart;
final VoidCallback onSwipeCancel;
final VoidCallback onSwipeEnd;
final VoidCallback? onSwipeStart;
final VoidCallback? onSwipeCancel;
final VoidCallback? onSwipeEnd;
final double threshold;
///
const Swipeable({
@required this.child,
@required this.backgroundIcon,
required this.child,
required this.backgroundIcon,
this.onSwipeStart,
this.onSwipeCancel,
this.onSwipeEnd,
@@ -29,11 +29,11 @@ class Swipeable extends StatefulWidget {
class _SwipeableState extends State<Swipeable> with TickerProviderStateMixin {
double _dragExtent = 0.0;
AnimationController _moveController;
AnimationController _iconMoveController;
Animation<Offset> _moveAnimation;
Animation<Offset> _iconTransitionAnimation;
Animation<double> _iconFadeAnimation;
late AnimationController _moveController;
late AnimationController _iconMoveController;
late Animation<Offset> _moveAnimation;
late Animation<Offset> _iconTransitionAnimation;
late Animation<double> _iconFadeAnimation;
bool _pastThreshold = false;
final _animationDuration = const Duration(milliseconds: 200);
@@ -67,18 +67,18 @@ class _SwipeableState extends State<Swipeable> with TickerProviderStateMixin {
void _handleDragStart(DragStartDetails details) {
if (widget.onSwipeStart != null) {
widget.onSwipeStart();
widget.onSwipeStart!();
}
}
void _handleDragUpdate(DragUpdateDetails details) {
final delta = details.primaryDelta;
final delta = details.primaryDelta!;
_dragExtent += delta;
if (_dragExtent.isNegative) return;
var movePastThresholdPixels = widget.threshold;
var newPos = _dragExtent.abs() / context.size.width;
var newPos = _dragExtent.abs() / context.size!.width;
if (_dragExtent.abs() > movePastThresholdPixels) {
// how many "thresholds" past the threshold we are. 1 = the threshold 2
@@ -90,7 +90,7 @@ class _SwipeableState extends State<Swipeable> with TickerProviderStateMixin {
var reducedThreshold = math.pow(n, 0.3);
var adjustedPixelPos = movePastThresholdPixels * reducedThreshold;
newPos = adjustedPixelPos / context.size.width;
newPos = adjustedPixelPos / context.size!.width;
if (_dragExtent > 0 && !_pastThreshold) {
_iconMoveController.value = 1;
@@ -100,7 +100,7 @@ class _SwipeableState extends State<Swipeable> with TickerProviderStateMixin {
// Send a cancel event if the user has swiped back underneath the
// threshold
if (_pastThreshold && widget.onSwipeCancel != null) {
widget.onSwipeCancel();
widget.onSwipeCancel!();
}
_pastThreshold = false;
}
@@ -115,7 +115,7 @@ class _SwipeableState extends State<Swipeable> with TickerProviderStateMixin {
_iconMoveController.animateTo(0.0, duration: _animationDuration);
_dragExtent = 0.0;
if (_pastThreshold && widget.onSwipeEnd != null) {
widget.onSwipeEnd();
widget.onSwipeEnd!();
}
}