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Show error when not connected to internet #5

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2 commits merged into from
Oct 2, 2019
Merged

Show error when not connected to internet #5

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c661b2a
feat(network): show popup when there is no internet connection
rizwankce Oct 2, 2019
4da1ff5
Merge branch 'master' into feature/network-error-popup
nathanfredericks Oct 2, 2019
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4 changes: 4 additions & 0 deletions HNNow.xcodeproj/project.pbxproj
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,7 @@
objects = {

/* Begin PBXBuildFile section */
653C2E032344468C008C9619 /* NetworkManager.swift in Sources */ = {isa = PBXBuildFile; fileRef = 653C2E022344468C008C9619 /* NetworkManager.swift */; };
7C7E7A1123440B1B00340C15 /* ShareSheet.swift in Sources */ = {isa = PBXBuildFile; fileRef = 7C7E7A1023440B1B00340C15 /* ShareSheet.swift */; };
8F2953B422AD6DF7000625CB /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8F2953B322AD6DF7000625CB /* AppDelegate.swift */; };
8F2953B622AD6DF7000625CB /* SceneDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 8F2953B522AD6DF7000625CB /* SceneDelegate.swift */; };
Expand Down Expand Up @@ -42,6 +43,7 @@
/* End PBXContainerItemProxy section */

/* Begin PBXFileReference section */
653C2E022344468C008C9619 /* NetworkManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NetworkManager.swift; sourceTree = "<group>"; };
7C7E7A1023440B1B00340C15 /* ShareSheet.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ShareSheet.swift; sourceTree = "<group>"; };
8F2953B022AD6DF7000625CB /* HNNow.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = HNNow.app; sourceTree = BUILT_PRODUCTS_DIR; };
8F2953B322AD6DF7000625CB /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
Expand Down Expand Up @@ -124,6 +126,7 @@
7C7E7A1023440B1B00340C15 /* ShareSheet.swift */,
8F2953BE22AD6DF9000625CB /* LaunchScreen.storyboard */,
8F2953C122AD6DF9000625CB /* Info.plist */,
653C2E022344468C008C9619 /* NetworkManager.swift */,
);
path = HNNow;
sourceTree = "<group>";
Expand Down Expand Up @@ -303,6 +306,7 @@
8F78FADB22B0449700A9FCA4 /* ActivityIndicatorView.swift in Sources */,
8F775E1222B0359400FDDEF2 /* WebView.swift in Sources */,
8F2953B422AD6DF7000625CB /* AppDelegate.swift in Sources */,
653C2E032344468C008C9619 /* NetworkManager.swift in Sources */,
8F2953B622AD6DF7000625CB /* SceneDelegate.swift in Sources */,
8F7FE12822AD774900EBD44D /* StoryRow.swift in Sources */,
8FB4AB7322AD7DB200363A7C /* StoryStore.swift in Sources */,
Expand Down
4 changes: 3 additions & 1 deletion HNNow/AppDelegate.swift
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Expand Up @@ -11,15 +11,17 @@ import UIKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {


var network = NetworkManager()

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
// Override point for customization after application launch.
network.startNotifier()
return true
}

func applicationWillTerminate(_ application: UIApplication) {
// Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
network.stopNotifier()
}

// MARK: UISceneSession Lifecycle
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42 changes: 42 additions & 0 deletions HNNow/NetworkManager.swift
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Original file line number Diff line number Diff line change
@@ -0,0 +1,42 @@
//
// NetworkManager.swift
// HNNow
//
// Created by Rizwan on 02/10/19.
// Copyright © 2019 Nathaniel Fredericks. All rights reserved.
//

import Foundation
import UIKit
import Network

class NetworkManager {
private var monitor:NWPathMonitor
private let queue = DispatchQueue(label: "NetworkMonitor")
private let alert: UIAlertController

init() {
monitor = NWPathMonitor()
alert = UIAlertController(title: "Network Error", message: "Check your internet connection.", preferredStyle: .alert)
alert.addAction(UIAlertAction(title: "Ok", style: .default, handler: nil))

monitor.pathUpdateHandler = { path in
if path.status != .satisfied {
print("No connection.")
DispatchQueue.main.async {
if (!self.alert.isBeingPresented) {
UIApplication.shared.windows.filter {$0.isKeyWindow}.first?.rootViewController?.present(self.alert, animated: true, completion: nil)
}
}
}
}
}

func startNotifier() {
monitor.start(queue: queue)
}

func stopNotifier() {
monitor.cancel()
}
}