extensions.dart
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import 'package:flutter/material.dart';
import 'animations.dart';
import 'get_animated_builder.dart';
const _defaultDuration = Duration(seconds: 2);
const _defaultDelay = Duration.zero;
extension AnimationExtension on Widget {
GetAnimatedBuilder? get _currentAnimation =>
(this is GetAnimatedBuilder) ? this as GetAnimatedBuilder : null;
GetAnimatedBuilder fadeIn({
Duration duration = _defaultDuration,
Duration delay = _defaultDelay,
ValueSetter<AnimationController>? onComplete,
bool isSequential = false,
}) {
assert(isSequential || this is! FadeOutAnimation,
'Can not use fadeOut + fadeIn when isSequential is false');
return FadeInAnimation(
duration: duration,
delay: _getDelay(isSequential, delay),
onComplete: onComplete,
child: this,
);
}
GetAnimatedBuilder fadeOut({
Duration duration = _defaultDuration,
Duration delay = _defaultDelay,
ValueSetter<AnimationController>? onComplete,
bool isSequential = false,
}) {
assert(isSequential || this is! FadeInAnimation,
'Can not use fadeOut() + fadeIn when isSequential is false');
return FadeOutAnimation(
duration: duration,
delay: _getDelay(isSequential, delay),
onComplete: onComplete,
child: this,
);
}
GetAnimatedBuilder rotate({
required double begin,
required double end,
Duration duration = _defaultDuration,
Duration delay = _defaultDelay,
ValueSetter<AnimationController>? onComplete,
bool isSequential = false,
}) {
return RotateAnimation(
duration: duration,
delay: _getDelay(isSequential, delay),
begin: begin,
end: end,
onComplete: onComplete,
child: this,
);
}
GetAnimatedBuilder scale({
required double begin,
required double end,
Duration duration = _defaultDuration,
Duration delay = _defaultDelay,
ValueSetter<AnimationController>? onComplete,
bool isSequential = false,
}) {
return ScaleAnimation(
duration: duration,
delay: _getDelay(isSequential, delay),
begin: begin,
end: end,
onComplete: onComplete,
child: this,
);
}
GetAnimatedBuilder slide({
required OffsetBuilder offset,
double begin = 0,
double end = 1,
Duration duration = _defaultDuration,
Duration delay = _defaultDelay,
ValueSetter<AnimationController>? onComplete,
bool isSequential = false,
}) {
return SlideAnimation(
duration: duration,
delay: _getDelay(isSequential, delay),
begin: begin,
end: end,
onComplete: onComplete,
offsetBuild: offset,
child: this,
);
}
GetAnimatedBuilder bounce({
required double begin,
required double end,
Duration duration = _defaultDuration,
Duration delay = _defaultDelay,
ValueSetter<AnimationController>? onComplete,
bool isSequential = false,
}) {
return BounceAnimation(
duration: duration,
delay: _getDelay(isSequential, delay),
begin: begin,
end: end,
onComplete: onComplete,
child: this,
);
}
GetAnimatedBuilder spin({
Duration duration = _defaultDuration,
Duration delay = _defaultDelay,
ValueSetter<AnimationController>? onComplete,
bool isSequential = false,
}) {
return SpinAnimation(
duration: duration,
delay: _getDelay(isSequential, delay),
onComplete: onComplete,
child: this,
);
}
GetAnimatedBuilder size({
required double begin,
required double end,
Duration duration = _defaultDuration,
Duration delay = _defaultDelay,
ValueSetter<AnimationController>? onComplete,
bool isSequential = false,
}) {
return SizeAnimation(
duration: duration,
delay: _getDelay(isSequential, delay),
begin: begin,
end: end,
onComplete: onComplete,
child: this,
);
}
GetAnimatedBuilder blur({
double begin = 0,
double end = 15,
Duration duration = _defaultDuration,
Duration delay = _defaultDelay,
ValueSetter<AnimationController>? onComplete,
bool isSequential = false,
}) {
return BlurAnimation(
duration: duration,
delay: _getDelay(isSequential, delay),
begin: begin,
end: end,
onComplete: onComplete,
child: this,
);
}
GetAnimatedBuilder flip({
double begin = 0,
double end = 1,
Duration duration = _defaultDuration,
Duration delay = _defaultDelay,
ValueSetter<AnimationController>? onComplete,
bool isSequential = false,
}) {
return FlipAnimation(
duration: duration,
delay: _getDelay(isSequential, delay),
begin: begin,
end: end,
onComplete: onComplete,
child: this,
);
}
GetAnimatedBuilder wave({
double begin = 0,
double end = 1,
Duration duration = _defaultDuration,
Duration delay = _defaultDelay,
ValueSetter<AnimationController>? onComplete,
bool isSequential = false,
}) {
return WaveAnimation(
duration: duration,
delay: _getDelay(isSequential, delay),
begin: begin,
end: end,
onComplete: onComplete,
child: this,
);
}
Duration _getDelay(bool isSequential, Duration delay) {
assert(!(isSequential && delay != Duration.zero),
"Error: When isSequential is true, delay must be non-zero. Context: isSequential: $isSequential delay: $delay");
return isSequential
? (_currentAnimation?.totalDuration ?? Duration.zero)
: delay;
}
}