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TimOliver/TOInsetGroupedTableView
An iOS 11 back-port of the grouped inset table view style in iOS 13.
.package(url: "https://github.com/TimOliver/TOInsetGroupedTableView.git", from: "1.1.0")

TOInsetGroupedTableView

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TOInsetGroupedTableView is a subclass of UITableView that back-ports the new "inset grouped" visual style introduced in iOS 13 to older versions of iOS.

On iOS 13 and above, it defers back to using the system implementation, meaning absolutely no extra configuration code is required.

This library is fantastic for developers adopting the new rounded corners style of table views in their apps, but are still supporting iOS 11 or iOS 12.

Features

  • Brings the modern rounded corners look to table views in previous versions of iOS.
  • All override behaviour is contained in the table view. No modifications of the cell views themselves is required.
  • Defers back to the system implementation on iOS 13 and higher.
  • As the code is only ever executed below iOS 13, there is no chance of future iOS releases breaking the build.

Requirements

  • Xcode 11.0 or higher.
  • iOS 11.0 or higher.

Installation

Manual Installation

  1. Download the latest version of the TOInsetGroupedTableView repository.
  2. Inside the repository, copy the TOInsetGroupedTableView folder to your own Xcode project.
  3. Optionally, in Swift, make sure to add the header file to your Swift bridging header.

CocoaPods

In your app's Podfile, add:

pod 'TOInsetGroupedTableView'

Usage

Integrating TOInsetGroupedTableView is extremely simple as it introduces no new APIs or changes any external inputs. All that is needed is to replace UITableView() instantiations with TOInsetGroupedTableView().

Swift

In Swift, the class is renamed to InsetGroupedTableView. In order to integrate it, simply replace any instances of

self.tableView = UITableView(frame: .zero, style: .insetGrouped)

with

self.tableView = InsetGroupedTableView(frame: .zero)

No other changes are needed.

Objective-C

Just like in Swift, all that is required is to rename any instantiations of UITableView with TOInsetGroupedTableView.

For example, simply replace any instances of:

self.tableView = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStyleInsetGrouped];

with

self.tableView = [[TOInsetGroupedTableView alloc] initWithFrame:CGRectZero];

Credits

TOInsetGroupedTableView was created by Tim Oliver.

How is this library different to TORoundedTableView?

TORoundedTableView is a library with a similar goal: replicating the rounded corner table view style that has been present in Settings.app since iOS 7.

TORoundedTableView was originally released in late 2016 with the explicit goal of supporting iOS versions 8.0 and above.

Due to the APIs available on iOS at the time, as well as the relative graphics performance of the hardware of that era, TORoundedTableView required far more modification of UITableView and its components to achieve the effect, and maintain high FPS.

Most notably, in order to have the rounded caps on the cells, it was also necessary to create subclasses of UITableViewCell as well, which increased the complexity of the implementation, and meant it couldn't really be simply 'dropped in' to existing implementations.

By focusing on just the most recent iOS versions, where OpenGL has been completely removed, and there are now more Core Animation APIs, TOInsetGroupedTableView is able to achieve the same effect as TORoundedTableView but without needing to subclass any of the cells.

Additionally, by observing how .insetGrouped behaves in iOS 13, it was also possible to configure TOInsetGroupedTableView to work alongside it, allowing for the same code to default back to the iOS 13 implementation when possible.

License

TOInsetGroupedTableView is available under the MIT license. Please see the LICENSE file for more information.

GitHub

link
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