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Rename Scrollbehavior release() to createFlingScrollSimulation()

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This commit is contained in:
Hans Muller 2015-09-29 11:45:18 -07:00
parent 7385641f6d
commit c3510b7d94
3 changed files with 8 additions and 8 deletions
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10
packages/flutter/lib/src/animation/scroll_behavior.dart
View File

@ -14,7 +14,7 @@ const double _kScrollDrag = 0.025;
abstract class ScrollBehavior {
/// Called when a drag gesture ends. Returns a simulation that
/// propels the scrollOffset.
Simulation release(double position, double velocity) => null;
Simulation createFlingScrollSimulation(double position, double velocity) => null;
/// Called when a drag gesture ends and toSnapOffset is specified.
/// Returns an animation that ends at the snap offset.
@ -83,7 +83,7 @@ class UnboundedBehavior extends ExtentScrollBehavior {
UnboundedBehavior({ double contentExtent: 0.0, double containerExtent: 0.0 })
: super(contentExtent: contentExtent, containerExtent: containerExtent);
Simulation release(double position, double velocity) {
Simulation createFlingScrollSimulation(double position, double velocity) {
double velocityPerSecond = velocity * 1000.0;
return new BoundedFrictionSimulation(
_kScrollDrag, position, velocityPerSecond, double.NEGATIVE_INFINITY, double.INFINITY
@ -133,7 +133,7 @@ class OverscrollBehavior extends BoundedBehavior {
OverscrollBehavior({ double contentExtent: 0.0, double containerExtent: 0.0 })
: super(contentExtent: contentExtent, containerExtent: containerExtent);
Simulation release(double position, double velocity) {
Simulation createFlingScrollSimulation(double position, double velocity) {
return _createFlingScrollSimulation(position, velocity, minScrollOffset, maxScrollOffset);
}
@ -162,9 +162,9 @@ class OverscrollBehavior extends BoundedBehavior {
class OverscrollWhenScrollableBehavior extends OverscrollBehavior {
bool get isScrollable => contentExtent > containerExtent;
Simulation release(double position, double velocity) {
Simulation createFlingScrollSimulation(double position, double velocity) {
if (isScrollable || position < minScrollOffset || position > maxScrollOffset)
return super.release(position, velocity);
return super.createFlingScrollSimulation(position, velocity);
return null;
}

4
packages/flutter/lib/src/fn3/scrollable.dart
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@ -137,7 +137,7 @@ abstract class ScrollableState<T extends Scrollable> extends State<T> {
_stopAnimations();
if (velocity != null && config.snapOffsetCallback != null && _scrollOffsetIsInBounds(scrollOffset)) {
Simulation simulation = scrollBehavior.release(scrollOffset, velocity);
Simulation simulation = scrollBehavior.createFlingScrollSimulation(scrollOffset, velocity);
if (simulation == null)
return;
double endScrollOffset = simulation.x(double.INFINITY);
@ -152,7 +152,7 @@ abstract class ScrollableState<T extends Scrollable> extends State<T> {
}
}
Simulation simulation = scrollBehavior.release(scrollOffset, velocity ?? 0.0);
Simulation simulation = scrollBehavior.createFlingScrollSimulation(scrollOffset, velocity ?? 0.0);
if (simulation == null)
return;
_toEndAnimation.start(simulation);

2
packages/flutter/lib/src/widgets/tabs.dart
View File

@ -367,7 +367,7 @@ class _TabsScrollBehavior extends BoundedBehavior {
bool isScrollable = true;
Simulation release(double position, double velocity) {
Simulation createFlingScrollSimulation(double position, double velocity) {
if (!isScrollable)
return null;