search-bar feature added

contact-list-app/Base.lproj/Main.storyboard

@@ -50,10 +50,11 @@
                                     </tableViewCell>
                                 </prototypes>
                             </tableView>
-                            <imageView clipsSubviews="YES" userInteractionEnabled="NO" contentMode="scaleAspectFit" horizontalHuggingPriority="251" verticalHuggingPriority="251" fixedFrame="YES" image="roshka" translatesAutoresizingMaskIntoConstraints="NO" id="uXr-7H-u4l">
-                                <rect key="frame" x="157" y="96" width="100" height="90"/>
-                                <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMaxY="YES"/>
-                            </imageView>
+                            <searchBar contentMode="redraw" fixedFrame="YES" translatesAutoresizingMaskIntoConstraints="NO" id="6X6-0e-OoT">
+                                <rect key="frame" x="0.0" y="113" width="414" height="44"/>
+                                <autoresizingMask key="autoresizingMask" widthSizable="YES" flexibleMaxY="YES"/>
+                                <textInputTraits key="textInputTraits"/>
+                            </searchBar>
                         </subviews>
                         <color key="backgroundColor" red="0.92132973669999996" green="0.93007987739999998" blue="0.952917397" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
                         <constraints>
@@ -66,6 +67,7 @@
                     <navigationItem key="navigationItem" title="Contacts" id="bfK-iM-1Sh"/>
                     <connections>
                         <outlet property="contacsTable" destination="yEq-E4-J6w" id="zMq-Ro-NJS"/>
+                        <outlet property="searchBar" destination="6X6-0e-OoT" id="v0q-Sp-8An"/>
                     </connections>
                 </viewController>
                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
@@ -205,6 +207,5 @@
         <image name="envelope" catalog="system" width="64" height="46"/>
         <image name="person.circle.fill" catalog="system" width="64" height="60"/>
         <image name="phone.fill" catalog="system" width="64" height="56"/>
-        <image name="roshka" width="400" height="400"/>
     </resources>
 </document>

contact-list-app/ViewController.swift

@@ -20,9 +20,9 @@ class ViewController: UIViewController {
     let contactStore = CNContactStore()
     var contacts = [CNContact]()
     var dataSource:[ContactList]? = []
-    var backUpContacts:[CNContact] = []
+    var contactsArray: [ContactList]? = []
     var isHidden = false
-    
+    @IBOutlet weak var searchBar: UISearchBar!
     @IBOutlet weak var contacsTable: UITableView!
         
     override func viewDidLoad() {
@@ -41,6 +41,7 @@ class ViewController: UIViewController {
         //set tableView handlers to this instance
         contacsTable.dataSource = self
         contacsTable.delegate = self
+        searchBar.delegate = self
     }
 
     func sortContacts(){
@@ -52,19 +53,20 @@ class ViewController: UIViewController {
                 temp.append(contacts[i])
             }else{
                 temp.append(contacts[i])
-                dataSource!.append(ContactList(firstLetter: String(pivot), contactList: temp))
+                contactsArray!.append(ContactList(firstLetter: String(pivot), contactList: temp))
                 pivot = contacts[i+1].givenName.prefix(1)
                 temp = []
             }
         }
         
         //ask for the last contact
-        if contacts[contacts.count-1].givenName.prefix(1) == dataSource![dataSource!.count-1].firstLetter{ //last group
-            dataSource![dataSource!.count-1].contactList.append(contacts[contacts.count-1])
+        if contacts[contacts.count-1].givenName.prefix(1) == contactsArray![contactsArray!.count-1].firstLetter{ //last group
+            contactsArray![contactsArray!.count-1].contactList.append(contacts[contacts.count-1])
         }else{ //new group
-            dataSource!.append(ContactList(firstLetter: String(pivot), contactList: [contacts[contacts.count-1]]))
+            contactsArray!.append(ContactList(firstLetter: String(pivot), contactList: [contacts[contacts.count-1]]))
         }
         
+        dataSource! = contactsArray!
      
     }
     
@@ -178,3 +180,40 @@ extension ViewController: UITableViewDelegate, UITableViewDataSource{
         show(contacProfileVC, sender: nil)
      }
 }
+
+extension ViewController: UISearchBarDelegate{
+    func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
+        dataSource! = contactsArray!
+        
+        if searchText.isEmpty == false {
+            dataSource! = filterContacts(searchText:searchText)
+            contacsTable.reloadData()
+        }else{
+            contacsTable.reloadData()
+        }
+    
+    }
+    
+    func filterContacts(searchText:String)->[ContactList]{
+        var filteredContacts:[ContactList] = []
+        var contactsTemp:[CNContact] = []
+    
+        contactsArray!.forEach{contact in
+            contact.contactList.forEach{contacto in
+                var fullName = contacto.givenName + contacto.familyName
+                if fullName.uppercased().contains(searchText.uppercased()) {
+                    contactsTemp.append(contacto)
+                }
+            }
+            
+            //en caso de que la seccion tenga coincidencias
+            if contactsTemp.count > 0 {
+                var contactListAux = ContactList(firstLetter: String(contactsTemp[0].givenName.prefix(1)), contactList: contactsTemp)
+                filteredContacts.append(contactListAux) //se agrega a la lista filtrada
+                contactsTemp = []
+            }
+        }
+        
+        return filteredContacts
+    }
+}