Add location manager examples to readmes. (pointfreeco#114)

* Update readmes

* wip

* remove some old code

Examples/CaseStudies/SwiftUICaseStudies/04-HigherOrderReducers-ResuableOfflineDownloads/DownloadComponent.swift

@@ -130,7 +130,7 @@ extension Reducer {
         case .downloadClient(.success(.response)):
           state.mode = .downloaded
           state.alert = nil
-          return .cancel(id: ThrottleId(id: state.id))
+          return .none
 
         case let .downloadClient(.success(.updateProgress(progress))):
           state.mode = .downloading(progress: progress)
@@ -139,7 +139,7 @@ extension Reducer {
         case .downloadClient(.failure):
           state.mode = .notDownloaded
           state.alert = nil
-          return .cancel(id: ThrottleId(id: state.id))
+          return .none
         }
       }
       .pullback(state: state, action: action, environment: environment),
@@ -148,10 +148,6 @@ extension Reducer {
   }
 }
 
-private struct ThrottleId<ID>: Hashable where ID: Hashable {
-  var id: ID
-}
-
 private let deleteAlert = DownloadAlert(
   primaryButton: .init(
     action: .alert(.deleteButtonTapped),

Examples/README.md

@@ -5,6 +5,9 @@ This directory holds many case studies and applications to demonstrate solving v
 * **Case Studies**
   <br> Demonstrates how to solve some common application problems in an isolated environment, in both SwiftUI and UIKit. Things like bindings, navigation, effects, and reusable components.
 
+* **Location Manager**
+  <br> This application uses Apple's CoreLocation and MapKit frameworks to allow the user to search for points of interest on a map. It also includes the ability to center the map on your current location, as well as a full test suite for how the app interacts with `CLLocationManager` and `MKLocalSearch`.
+
 * **Motion Manager**
   <br> This application uses Apple's CoreMotion framework to show a graph of device movements. It's a demonstration of how to wrap complex dependencies in the `Effect` type so that you can interact with them in the reducer _and_ write tests for its logic.
 

README.md

@@ -48,6 +48,7 @@ This repo comes with _lots_ of examples to demonstrate how to solve common and c
   * Navigation
   * Higher-order reducers
   * Reusable components
+* [Location manager](./Examples/LocationManager)
 * [Motion manager](./Examples/MotionManager)
 * [Search](./Examples/Search)
 * [Speech Recognition](./Examples/SpeechRecognition)