RHBKit

Content

Core, all platforms

• Data stack and fetched data wrappers
• Generic table view data source for background fetched data
• Operations and queues
• Predicates and operators
• Encryption checker
• Memory diagnostics
• Objective-C defer, singleton and casting
• Mutable protocol
• Utilities, debug, deiniter
• Native extensions

Extras, platform subset

• Orientation tracker {ios, watchos}
• UIKit: table data sources, app settings, fake progress view {ios, tvos}
• Native extensions for various platforms

Examples and snippets [Swift]

Generic data source and background fetching

dataStack.backgroundFetch(fetchRequest) { [weak self] controller, mainContext in
    self?.tableViewDataSource = TableViewDataSource(controller, mainContext)
    self?.tableView.reloadData()
}

Best accelerometer based orientation tracker, works for watchos

orientationTracker.startTracking { [weak self] tracker in
    UIView.animate(withDuration: 0.3) {
        self?.imageView.transform = CGAffineTransform(rotationAngle: -CGFloat(tracker.deviceRotation))
    }
}

Core data operations

queue.addCoreDataOperation(persistentContainer) { context in
    try! context.fetch(TestEntity.fetchRequest()).forEach { context.delete($0) }
    try! context.save()
}

NSPersistentContainer extension for async store loading, with fake progress

progressView.startProgress()
container.loadStoresAsync { [weak self] _, errors in
    self?.progressView.endProgess(errors.isEmpty)
}

Debug

Debug.execute { print("log in debug only") }

Mutating while constructing

let queue = OperationQueue().mutate { $0.maxConcurrentOperationCount = 1 }

PredicateKey with arithmetic operators for building NSPredicate

let predicate1 = PredicateKey("name") == "Sisoje"
let predicate2 = PredicateKey(#keyPath(TestEntity.name)) == "Sisoje"
let predicate3 = \TestEntity.name == "Sisoje"

NSPredicate logical operators for building complex predicates

let predicate = !predicate1 || predicate2

Blocks with operation parameter

queue.addOperationInside { operation in
    while !operation.isCancelled { printf("doing some work") }
}

Collection safe index

let optional = array[safe: 55]

Convenienece constructors

NSManagedObjectModel(name: "TestModel", in: Bundle.main)
NSFetchedResultsController(performing: request, in: context)
UIColor(colorReference: 0x112233)

Notification center adding & removing

var removeObserver: (() -> Void)?
removeObserver = NotificationCenter.default.addRemovableObserver(.UIApplicationWillEnterForeground) { _ in
    removeObserver?()
}

Application settings with return block

application.openApplicationSettings {
    printf("back from settings, something maybe changed")
}

Encryption checker

let isEncrypted = RHBEncryptionChecker.isEncrypted(main)

Memory diagnostics

let memoryUsed = RHBDiagnostics.memoryUsed()

Examples and snippets [Objective-C]

Defer

RHB_DEFER {
    NSLog(@"time to release something");
}];

Singleton

@implementation MySingleton
    RHB_SINGLETON(sharedInstance)
@end

Casting

NSArray *array = [NSArray rhb_dynamicCast:self.collection];
if (array) {
    NSLog(@"It is array: %@", array);
}

Requirements

• Swift 4.0

• Platforms:

    { :ios => "10.0", :watchos => "3.0", :tvos => "10.0", :osx => "10.12" }
  

Installation

RHBKit is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'RHBKit'

Author

Lazar Otasevic, [email protected]

License

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