Add loading indicator when initiating login or signup actions.

Mobile Buy SDK Sample Apps/Sample App Customers/Sample App Customers.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		9A102CEE1CDAA6080026CC43 /* ActionCell.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9A102CED1CDAA6080026CC43 /* ActionCell.swift */; };
 		9A9C03071CD8F9AC00AE79BD /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9A9C03061CD8F9AC00AE79BD /* AppDelegate.swift */; };
 		9A9C03091CD8F9AC00AE79BD /* LoginViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 9A9C03081CD8F9AC00AE79BD /* LoginViewController.swift */; };
 		9A9C030C1CD8F9AC00AE79BD /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 9A9C030A1CD8F9AC00AE79BD /* Main.storyboard */; };
@@ -64,6 +65,7 @@
 /* End PBXCopyFilesBuildPhase section */
 
 /* Begin PBXFileReference section */
+		9A102CED1CDAA6080026CC43 /* ActionCell.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ActionCell.swift; sourceTree = "<group>"; };
 		9A9C03031CD8F9AC00AE79BD /* Sample App Customers.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "Sample App Customers.app"; sourceTree = BUILT_PRODUCTS_DIR; };
 		9A9C03061CD8F9AC00AE79BD /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		9A9C03081CD8F9AC00AE79BD /* LoginViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LoginViewController.swift; sourceTree = "<group>"; };
@@ -89,6 +91,14 @@
 /* End PBXFrameworksBuildPhase section */
 
 /* Begin PBXGroup section */
+		9A102CE81CDAA5F00026CC43 /* Cells */ = {
+			isa = PBXGroup;
+			children = (
+				9A102CED1CDAA6080026CC43 /* ActionCell.swift */,
+			);
+			name = Cells;
+			sourceTree = "<group>";
+		};
 		9A9C02FA1CD8F9AC00AE79BD = {
 			isa = PBXGroup;
 			children = (
@@ -112,6 +122,7 @@
 			children = (
 				9A9C03061CD8F9AC00AE79BD /* AppDelegate.swift */,
 				9A9C03391CD920F600AE79BD /* Extensions */,
+				9A102CE81CDAA5F00026CC43 /* Cells */,
 				9A9C031A1CD8FA0C00AE79BD /* View Controllers */,
 				9A9C030A1CD8F9AC00AE79BD /* Main.storyboard */,
 			);
@@ -271,6 +282,7 @@
 				9A9C03091CD8F9AC00AE79BD /* LoginViewController.swift in Sources */,
 				9A9C03071CD8F9AC00AE79BD /* AppDelegate.swift in Sources */,
 				9A9C033B1CD921D700AE79BD /* BUYClient+Extensions.swift in Sources */,
+				9A102CEE1CDAA6080026CC43 /* ActionCell.swift in Sources */,
 				9A9C031C1CD8FC6A00AE79BD /* AccountViewController.swift in Sources */,
 				9A9C031E1CD8FD2300AE79BD /* SignupViewController.swift in Sources */,
 			);

Mobile Buy SDK Sample Apps/Sample App Customers/Sample App Customers/ActionCell.swift

+//
+//  ActionCell.swift
+//  Sample App Customers
+//
+//  Created by Dima Bart on 2016-05-04.
+//  Copyright © 2016 Shopify Inc. All rights reserved.
+//
+
+import UIKit
+
+class ActionCell: UITableViewCell {
+    
+    @IBOutlet private weak var actionLabel: UILabel!
+    @IBOutlet private weak var loader:      UIActivityIndicatorView!
+
+    var loading: Bool {
+        get {
+            return self.actionLabel.hidden
+        }
+        set {
+            self.actionLabel.hidden = newValue
+            self.loader.hidden      = !newValue
+        }
+    }
+
+}

Mobile Buy SDK Sample Apps/Sample App Customers/Sample App Customers/LoginViewController.swift

@@ -31,11 +31,21 @@ class LoginViewController: UITableViewController {
 
     @IBOutlet private weak var emailField:    UITextField!
     @IBOutlet private weak var passwordField: UITextField!
+    @IBOutlet private weak var actionCell:    ActionCell!
     
     var email:    String { return self.emailField.text    ?? "" }
     var password: String { return self.passwordField.text ?? "" }
     
     // ----------------------------------
+    //  MARK: - View Loading -
+    //
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        self.actionCell.loading = false
+    }
+    
+    // ----------------------------------
     //  MARK: - Actions -
     //
     private func loginUser() {
@@ -44,7 +54,10 @@ class LoginViewController: UITableViewController {
             BUYAccountCredentialItem(password: self.password),
         ])
         
+        self.actionCell.loading = true
         BUYClient.sharedClient.loginCustomerWithCredentials(credentials) { (customer, token, error) in
+            self.actionCell.loading = false
+            
             print("Customer: \(customer), Token: \(token), Error: \(error)")
         }
     }

Mobile Buy SDK Sample Apps/Sample App Customers/Sample App Customers/SignupViewController.swift

@@ -34,6 +34,7 @@ class SignupViewController: UITableViewController {
     @IBOutlet private weak var emailField:           UITextField!
     @IBOutlet private weak var passwordField:        UITextField!
     @IBOutlet private weak var passwordConfirmField: UITextField!
+    @IBOutlet private weak var actionCell:           ActionCell!
     
     var firstName:       String { return self.firstNameField.text ?? "" }
     var lastName:        String { return self.lastNameField.text  ?? "" }
@@ -42,6 +43,15 @@ class SignupViewController: UITableViewController {
     var passwordConfirm: String { return self.passwordField.text  ?? "" }
     
     // ----------------------------------
+    //  MARK: - View Loading -
+    //
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        self.actionCell.loading = false
+    }
+    
+    // ----------------------------------
     //  MARK: - Actions -
     //
     private func createUser() {
@@ -53,7 +63,10 @@ class SignupViewController: UITableViewController {
             BUYAccountCredentialItem(passwordConfirmation: self.passwordConfirm),
         ])
         
+        self.actionCell.loading = true
         BUYClient.sharedClient.createCustomerWithCredentials(credentials) { (customer, token, error) in
+            self.actionCell.loading = false
+            
             print("Customer: \(customer), Token: \(token), Error: \(error)")
         }
     }