* Refactor FloatingPanel.targetPosition()
* Add test_targetPosition tests
* Fix bottomY
* Call shouldProjectMomentum(_:for:) only when a projection occurs on next
or pre segment. It means the delegate method not called for redirection.
* Improve all projection
The default Swift version leaves 4.0. Because it avoids build errors
with Carthage on each Xcode version from the source compatibility
between Swift 4.0, 4.2 and 5.0.
With regard to CocoaPods, the pod spec is going to support
`swift_versions` introduced in CocoaPods v1.7.0. For now, a user needs
to override `SWIFT_VERSION` appropriately in Podfile.
The KVO for `safeAreaInset` can be invoked even when new and old values
are the same value so that the surface of a floating panel sometimes
jumps in dragging by an unexpected layout update called from a
`safeAreaInset` update.
This solves the problem that a panel's layout and dragging can be
inappropriate. The root cause is that a value of the `safeAreaInsets`
is sometimes different from an actual value referenced from Auto Layout.
It's led by the design that the `safeAreaInsets` is defined as a stored
property. Therefore this commit resolves the issue.
On iOS 10, there is a case when a floating panel is updated by a
different position(the previous position) from the target position in
animating. This is because `FloatingPanelController` calls
`update(safeAreaInsets:)` in `viewDidLayoutSubviews()` unexpectedly.
Typical use case is :
```
let floatingVC = FloatingPanelController()
floatingVC.delegate = self
```
This PR allows to set the delegate straight away by using `let floatingVC = FloatingPanelController(self)`
Its true reason is that the setup code that fetches behavior / layout through delegate is called without the delegate being set is useless on `init`ing.
Another implementation could be observing the `didSet` event on delegate to do the `setUp` for `FloatingPanel`
* `vc.view.bounds.height` causes some layout problems. This change
makes a content view layout more robust.
* Enable to configure the content-hugging and compression-resistance
- Update README
- Remove FloatingPanelSurfaceWrapperView
- Remove content wrapper view of FloatingPanelSurfaceView
- Remove {setUp,tearDown}Views in FloatingPanel
- Modify timing to call FloatingPanelLayoutAdapter.checkLayoutConsistance()
- Fix invalid surface height on orientation change
- Fix a layout problem on SafeArea.Top
- Fix invalid top inset of safe area on a navigation bar with search bar
- Fix content offsets of a tracking scroll view
- Fix the content offsets on orientation change(Regression)
- Fix FloatingPanelPresentationController
- Fix intrinsic height handling
- Reduce re-rendering the surface view unexpectedly