Add `Person` model, support upload images, support updating name

10-names-and-faces/Names And Faces/Names And Faces.xcodeproj/project.pbxproj

@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		F3048AC921F9B2C300ECADB1 /* Person.swift in Sources */ = {isa = PBXBuildFile; fileRef = F3048AC821F9B2C300ECADB1 /* Person.swift */; };
 		F35A33C221F8F29C0025CFE0 /* AppDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = F35A33C121F8F29C0025CFE0 /* AppDelegate.swift */; };
 		F35A33C421F8F29C0025CFE0 /* HomeViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = F35A33C321F8F29C0025CFE0 /* HomeViewController.swift */; };
 		F35A33C721F8F29C0025CFE0 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = F35A33C521F8F29C0025CFE0 /* Main.storyboard */; };
@@ -16,6 +17,7 @@
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
+		F3048AC821F9B2C300ECADB1 /* Person.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Person.swift; sourceTree = "<group>"; };
 		F35A33BE21F8F29C0025CFE0 /* Names And Faces.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "Names And Faces.app"; sourceTree = BUILT_PRODUCTS_DIR; };
 		F35A33C121F8F29C0025CFE0 /* AppDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = AppDelegate.swift; sourceTree = "<group>"; };
 		F35A33C321F8F29C0025CFE0 /* HomeViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = HomeViewController.swift; sourceTree = "<group>"; };
@@ -58,6 +60,7 @@
 			children = (
 				F35A33C121F8F29C0025CFE0 /* AppDelegate.swift */,
 				F35A33C321F8F29C0025CFE0 /* HomeViewController.swift */,
+				F3048AC821F9B2C300ECADB1 /* Person.swift */,
 				F35A33C521F8F29C0025CFE0 /* Main.storyboard */,
 				F3BA7EF421F9956E001FD18E /* PersonCell.swift */,
 				F35A33C821F8F29D0025CFE0 /* Assets.xcassets */,
@@ -140,6 +143,7 @@
 			files = (
 				F3BA7EF521F9956E001FD18E /* PersonCell.swift in Sources */,
 				F35A33C421F8F29C0025CFE0 /* HomeViewController.swift in Sources */,
+				F3048AC921F9B2C300ECADB1 /* Person.swift in Sources */,
 				F35A33C221F8F29C0025CFE0 /* AppDelegate.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

10-names-and-faces/Names And Faces/Names And Faces/HomeViewController.swift

@@ -9,6 +9,9 @@
 import UIKit
 
 class HomeViewController: UICollectionViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
+    var people = [Person]()
+    
+    
     override func viewDidLoad() {
         super.viewDidLoad()
         // Do any additional setup after loading the view, typically from a nib.
@@ -18,17 +21,30 @@ class HomeViewController: UICollectionViewController, UIImagePickerControllerDel
 
 
     override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
-        return 10
+        return people.count
     }
     
     
     override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
         let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Person", for: indexPath) as! PersonCell
+        let person = people[indexPath.item]
+        
+        cell.personImageView.image = UIImage(contentsOfFile: getURL(forFile: person.imageName).path)
+        cell.personNameLabel.text = person.name
+        
+        setStyles(forCell: cell)
         
         return cell
     }
     
     
+    override func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
+        let person = people[indexPath.item]
+        
+        promptForName(of: person)
+    }
+    
+    
     /*
      Handles the completion of adding an image to the picker. Our flow:
         - Extract the image from the dictionary that is passed as a parameter.
@@ -41,13 +57,17 @@ class HomeViewController: UICollectionViewController, UIImagePickerControllerDel
         guard let imagePicked = info[.editedImage] as? UIImage else { return }
 
         let fileName = UUID().uuidString
-        let imagePath = getDocumentsDirectoryURL().appendingPathComponent(fileName)
+        let imageURL = getURL(forFile: fileName)
         
         if let jpegData = imagePicked.jpegData(compressionQuality: 0.8) {
-            try? jpegData.write(to: imagePath)
+            try? jpegData.write(to: imageURL)
         }
         
+        people.append(Person(name: "Unknown", imageName: fileName))
+        collectionView?.reloadData()
+        
         picker.dismiss(animated: true)
+        
     }
     
     
@@ -57,6 +77,11 @@ class HomeViewController: UICollectionViewController, UIImagePickerControllerDel
         imagePicker.allowsEditing = true
         imagePicker.delegate = self
         
+        if UIImagePickerController.isSourceTypeAvailable(.camera) {
+            imagePicker.sourceType = .camera
+        }
+        
+        
         present(imagePicker, animated: true)
     }
     
@@ -66,5 +91,37 @@ class HomeViewController: UICollectionViewController, UIImagePickerControllerDel
         
         return paths[0]
     }
+    
+    
+    func getURL(forFile fileName: String) -> URL {
+        return getDocumentsDirectoryURL().appendingPathComponent(fileName)
+    }
+    
+    
+    func setStyles(forCell cell: PersonCell) {
+        cell.personImageView.layer.borderColor = UIColor(red: 0.0, green: 0.0, blue: 0.0, alpha: 0.3).cgColor
+        cell.personImageView.layer.borderWidth = 2
+        cell.personImageView.layer.cornerRadius = 3
+        cell.layer.cornerRadius = 7
+    }
+    
+    
+    func promptForName(of person: Person) {
+        let alertController = UIAlertController(title: "Who is this?", message: nil, preferredStyle: .alert)
+        
+        alertController.addTextField()
+        alertController.addAction(UIAlertAction(title: "Cancel", style: .cancel))
+        
+        alertController.addAction(
+            UIAlertAction(title: "OK", style: .default) { [unowned self, alertController] _ in
+                let newName = alertController.textFields![0].text!
+                
+                person.name = newName
+                self.collectionView?.reloadData()
+            }
+        )
+        
+        present(alertController, animated: true)
+    }
 }
 

10-names-and-faces/Names And Faces/Names And Faces/Person.swift

@@ -0,0 +1,19 @@
+//
+//  Person.swift
+//  Names And Faces
+//
+//  Created by Brian Sipple on 1/24/19.
+//  Copyright © 2019 Brian Sipple. All rights reserved.
+//
+
+import UIKit
+
+class Person: NSObject {
+    var name: String
+    var imageName: String
+    
+    init(name: String, imageName: String) {
+        self.name = name
+        self.imageName = imageName
+    }
+}