Removes the need to copy-paste stanzas from other files anymore as we'll rely on #4478 to generate the correct stanza for us instead.
This was an automated change generated by running a find-and-replace regular expression:
```
/\*
Copyright ([0-9]+)-present the Material Components for iOS authors\. All Rights Reserved\.
Licensed under the Apache License, Version 2\.0 \(the "License"\);
you may not use this file except in compliance with the License\.
You may obtain a copy of the License at
http://www\.apache\.org/licenses/LICENSE-2\.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied\.
See the License for the specific language governing permissions and
limitations under the License\.
\*/
```
```
/\*
Copyright ([0-9]+)-present the Material Components for iOS authors\. All Rights Reserved\.
Licensed under the Apache License, Version 2\.0 \(the "License"\);
you may not use this file except in compliance with the License\.
You may obtain a copy of the License at
http://www\.apache\.org/licenses/LICENSE-2\.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied\.
See the License for the specific language governing permissions and
limitations under the License\.
\*/
```
```
/\*
Copyright ([0-9]+)-present the Material Components for iOS authors\. All Rights Reserved\.
Licensed under the Apache License, Version 2\.0 \(the "License"\);
you may not use this file except in compliance with the License\.
You may obtain a copy of the License at
http://www\.apache\.org/licenses/LICENSE-2\.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied\.
See the License for the specific language governing permissions and
limitations under the License\.
\*/
```
```
// Copyright $1-present the Material Components for iOS authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
```
This simplifies the layers between the app developer and the transition implementation while also allowing us to reduce the complexity of the MotionTransitioning APIs. In the near future we will remove nearly all of the MotionTransitioning abstractions in favor of providing a small set of tools and APIs for building plain UIKit transitions.
Notably:
- MaskedTransition is now a private API.
- There is a new MaskedTransitionController type that must be instantiated and stored for the lifetime of the presented view controller.
- MaskedTransition is no longer a Transition type.
- MaskedTransition now simply implements the animated view controller transitioning APIs.
- MaskedTransitionController vends MaskedTransition instances as required.
Example usage:
```swift
let transitionController = MDCMaskedTransitionController()
func didTapFab(fab: UIView) {
let vc = SomeViewController()
vc.view.autoresizingMask = [.flexibleLeftMargin, .flexibleTopMargin,
.flexibleRightMargin, .flexibleBottomMargin]
// Customize the transition
transitionController.sourceView = fab
transitionController.calculateFrameOfPresentedView = { info in
let size = CGSize(width: 200, height: 200)
return CGRect(x: (info.containerView!.bounds.width - size.width) / 2,
y: (info.containerView!.bounds.height - size.height) / 2,
width: size.width,
height: size.height)
}
vc.modalPresentationStyle = .custom
vc.transitioningDelegate = transitionController
showDetailViewController(vc, sender: self)
}
```
All examples now have at least the required `+catalogBreadcrumbs` and `+catalogIsPrimaryDemo`. All examples in the same breadcrumbs path have only one primary demo. There should be only one `-catalogDescription` attached to the primary demo.
Closes#1897
* Add Masked Transition component.
This component makes it possible to present a view controller from a source view, such as a floating action button, using a masked reveal transition.
This component depends on Material Motion's Transitioning, MotionInterchange, and MotionAnimator libraries.
The component itself is a Transition instance and can be used like this:
vc.transitionController.transition = MDCMaskedTransition(sourceView: fab)
present(vc, animated: true)
The component's motion is defined in its motion spec and was extracted directly from the Material motion spec.
The transition supports the following contexts:
- Fullscreen
- Bottom sheet
- Floating card
- Bottom toolbar
* Code review feedback.
* Add README.md.
* Copy the frame calculation block.
* Reword the overview to reduce implementation details.
* Remove scrim sharing and document full screen behavior.
* Audit rect math and remove example debug logs.
* Update to use hypot.
* Remove presentation controller storage.
* Update podspec with new MotionTransitioning dependency.
* Fix autoresizing bugs and update header import names.
* Fix floating point conversion warning.
* Use bottomCard spec for all positions.
