Files
firebase-ios-sdk/FirebaseRemoteConfig/Swift/PropertyWrapper/RemoteConfigProperty.swift

52 lines
1.5 KiB
Swift

/*
* Copyright 2022 Google LLC
*
* 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.
*/
#if SWIFT_PACKAGE
@_exported import FirebaseRemoteConfigInternal
#endif // SWIFT_PACKAGE
import SwiftUI
/// A property wrapper that listens to a Remote Config value.
@available(iOS 14.0, macOS 11.0, macCatalyst 14.0, tvOS 14.0, watchOS 7.0, *)
@propertyWrapper
public struct RemoteConfigProperty<T: Decodable>: DynamicProperty {
@StateObject private var configValueObserver: RemoteConfigValueObservable<T>
/// Remote Config key name for this property
public let key: String
public var wrappedValue: T {
configValueObserver.configValue
}
/// Creates an instance by providing a config key.
///
/// - Parameter key: key name
/// - Parameter fallback: The value to fall back to if the key doesn't exist in remote or default
/// configs
public init(key: String, fallback: T) {
self.key = key
_configValueObserver = StateObject(
wrappedValue: RemoteConfigValueObservable<T>(
key: key,
fallbackValue: fallback
)
)
}
}