Our creativity knows no bounds.
### Find
```
/\*
*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 ([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 ([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 ([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\.
\*/
```
### Replace
```
// 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.
```
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.
```
Removes the need to copy-paste stanzas from other files anymore as we'll rely on https://github.com/material-components/material-components-ios/pull/4478 to generate the correct stanza for us instead.
This was an automated change generated by running a find-and-replace regular expression:
### Find
```
/\*
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\.
\*/
```
### Replace
```
// 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.
```
We can now make use of @available throughout our codebase.
We support Xcode 9 and up, which includes the iOS 11 SDK. This means we can remove any guards for SDKs prior to iOS 11.
This was cleaned up by running a global find-and-replace with the following regular expression:
```
Find:#if defined\(__IPHONE_11_0\) && \(__IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_11_0\)\n(.+if \(@available\(iOS 11.0, \*\)\) \{(?:.|\n)*?)(?:#else(?:.|\n)*?)?\n#endif
Replace:$1
```
With some additional cleanup for stragglers that didn't match this pattern. Note that else clauses were intentionally dropped.
Closes https://github.com/material-components/material-components-ios/issues/4909
This new flag allows a client to remove the 20pt font size restriction on MDCNavigationBar. This restriction was somewhat arbitrary and could cause problems with accessibility for certain font families.
Prior to this change, any font set on MDCNavigationBar would be restricted to 20pt size.
After this change, if the allowAnyTitleFontSize property is enabled on an MDCNavigationBar instance, then the font will be used directly and no sizes will be enforced.
This is required to support internal needs to set a navigation bar title font size of 18.
Historically we had given navigation bars different heights on iPads. We no longer intent to make this distinction.
This change also fixes a bug related to this difference in behavior on iPads. The repro case for this bug is:
- Launch MDCDragons on an iPad Pro running 10.3.1.
- Open the App Bar typical use example.
- Scroll the content down somewhat.
Expected behavior: the navigation bar does not change its height or shift.
Actual behavior: the navigation bar shifts slightly as the scroll view is scrolled.
After this change, the navigation bar's height will always default to the same fixed height on all devices. This reflects the fact that Flexible Header's default minimumHeight and maximumHeight values are constant across all devices.
Closes https://github.com/material-components/material-components-ios/issues/4840
This restriction is somewhat arbitrary and could cause problems with accessibility for certain font families.
Prior to this change, any font set on MDCNavigationBar would be restricted to 20pt size.
After this change, the font will be used directly and no sizes will be enforced.
This is required to support internal needs to set a navigation bar title font size of 18.
Many of our Swift examples are either missing imports or are importing all of
MaterialComponents. Both of these will cause failures during internal builds.
This change further formalizes our pattern of annotating APIs that will be or are deprecated using class categories. Moving an API into such a category has the benefit of being picked up by the API diff toolchain and elevated into our release notes as a result.
As part of our readme generator, components can now opt in to displaying badges in their readme.
The badges are generated from https://shields.io/ and are focused on an individual component. We're currently generating the following badges:
- Open bug count.
This discourages depending on all of a component's extensions and aligns our targets more closely with how we expect them to be imported and depended upon.
This is a breaking change.
Pivotal story: https://www.pivotaltracker.com/story/show/157118721
ButtonBar, FlexibleHeader, HeaderStackView, and NavigationBar are all implementation details of AppBar. While these components can be used on their own, in practice we expect most typical usage to rely on AppBar. FlexibleHeader is a bit blurry in that there is often value in relying on it solely, but because it is not a true concept in the spec and its behavioral demos largely overlap with AppBar's, it is now a dragons demo.
Pivotal story: https://www.pivotaltracker.com/story/show/156982162
We do not intend to actively support UIAppearance any further. This change removes any references to supporting UIAppearance from our public documentation.
Pivotal story: https://www.pivotaltracker.com/story/show/157048342
Made colorScheme and typographyScheme properties in the class interfaces for all our examples.
Moved theming away from example inits and into viewDidLoad
Small update for slider example to allow it to grab the theming properly.
Related Pivotal: https://www.pivotaltracker.com/story/show/156616695
### Context
When setting a font on MDCNavigationBar, we force the font to have a size of 20.
### Prior to this change
We were enforcing the font size by using an older UIFont API - fontWithName:size:. This API does not preserve font descriptor attributes from the provided font, it only preserves the font name and size.
This was resulting in the loss of an important system font descriptor attribute, namely `NSCTFontUIFontDesignTrait` which was set to `NSCTFontUIFontDesignDefault`. This font attribute affects the kerning of fonts when displayed on screen.
### After this change
We are now using the iOS 7 API - fontWithDescriptor:size:. This API preserves all of the underlying font descriptor attributes.
The result of this change is an intentional visual change.
As part of this behavioral change, I've also updated the related unit tests to enforce this behavior in the future.
To see a visual depiction of the change in behavior, open the following two screenshots and flip between them:
Before this fix:

After this fix:

Visual delta:
