ReusableObjects

ReusableObjects is the easiest way to create an object once, and re-used it as much as possible. It’s allow you to avoid several allocation / initialization of expensive objects such as NSDateFormatter, NSNumberFormatter… or any of your custom objects.

Available for iOS, OS X, and tvOS.

Example

let reuseIdentifier = "kDateFormatterIdentifier"      
NSDateFormatter.registerObjectWithIdentifier(reuseIdentifier)
if let dateFormatter = NSDateFormatter.dequeueReusableObjectWithIdentifier(identifier) as? NSDateFormatter,
               reusedDateFormatter = NSDateFormatter.dequeueReusableObjectWithIdentifier(identifier) as? NSDateFormatter {
    print("\(dateFormatter) vs \(reusedDateFormatter)") // <NSDateFormatter: 0x7fd1307125c0> vs <NSDateFormatter: 0x7fd1307125c0>
}

Check out the demo project to see other examples.

Installation

Swift Package Manager

ReusableObjects is available on SPM. Just add the following to your Package file:

import PackageDescription

let package = Package(
    dependencies: [
        .Package(url: "https://github.com/tbaranes/ReusableObjects.git", majorVersion: 1)
    ]
)

Manual Installation

Just drag the Source/*.swift files into your project.

Usage

static func registerObjectWithIdentifier(reuseIdentifier: String)
public func registerObjectWithIdentifier(reuseIdentifier: String)

Attempts to register a class to reuse it anywhere in your application. Does nothing if the current object or identifier is not valid.

The reuseIdentifier parameter must not be nil and must not be an empty string.

static func unregisterObjectWithIdentifier(reuseIdentifier: String)

Unregister the object located by its identifiers. Doesn nothing if the object doesn’t exist.

static func dequeueReusableObjectWithIdentifier(reuseIdentifier: String) -> AnyObject?

Returns a reusable NSObject object located by its identifier.

If any object found, it will register the object before returning the object registered or nil if an error occured.

What’s next

• [ ] A better public interfaces
• [ ] WatchOS support
• Your ideas!

Contribution

• If you found a bug, open an issue
• If you have a feature request, open an issue
• If you want to contribute, submit a pull request

Licence

ReusableObjects is available under the MIT license. See the LICENSE file for more info.