diff --git a/29th-iOS-week4-homework/.Podfile.swp b/29th-iOS-week4-homework/.Podfile.swp
new file mode 100644
index 0000000..e71a0e2
Binary files /dev/null and b/29th-iOS-week4-homework/.Podfile.swp differ
diff --git a/29th-iOS-week4-homework/29th-iOS-week4-homework.xcodeproj/project.pbxproj b/29th-iOS-week4-homework/29th-iOS-week4-homework.xcodeproj/project.pbxproj
index af9a57d..2cb413e 100644
--- a/29th-iOS-week4-homework/29th-iOS-week4-homework.xcodeproj/project.pbxproj
+++ b/29th-iOS-week4-homework/29th-iOS-week4-homework.xcodeproj/project.pbxproj
@@ -7,6 +7,7 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		68C8AA87D0391972F51A0F6A /* Pods_29th_iOS_week4_homework.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0584413B77CB11F33A91C9C8 /* Pods_29th_iOS_week4_homework.framework */; };
 		6FF11D2D274128EA00136A18 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 6FF11D0A274128EA00136A18 /* Assets.xcassets */; };
 		6FF11D2E274128EA00136A18 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 6FF11D0D274128EA00136A18 /* Main.storyboard */; };
 		6FF11D30274128EA00136A18 /* VideoVC.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6FF11D10274128EA00136A18 /* VideoVC.swift */; };
@@ -32,6 +33,7 @@
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
+		0584413B77CB11F33A91C9C8 /* Pods_29th_iOS_week4_homework.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_29th_iOS_week4_homework.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		6FB4805B272C11BF003B9053 /* 29th-iOS-week4-homework.app */ = {isa = PBXFileReference; explicitFileType = wrapper.application; includeInIndex = 0; path = "29th-iOS-week4-homework.app"; sourceTree = BUILT_PRODUCTS_DIR; };
 		6FF11D0A274128EA00136A18 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		6FF11D0D274128EA00136A18 /* Main.storyboard */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = file.storyboard; path = Main.storyboard; sourceTree = "<group>"; };
@@ -56,6 +58,8 @@
 		6FF11D2C274128EA00136A18 /* SignInViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SignInViewController.swift; sourceTree = "<group>"; };
 		6FF11D4527412A4200136A18 /* Info.plist */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.plist.xml; path = Info.plist; sourceTree = "<group>"; };
 		6FF11D492741347900136A18 /* ViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		9BB75F5F4665F4A9DBDB2FE9 /* Pods-29th-iOS-week4-homework.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-29th-iOS-week4-homework.release.xcconfig"; path = "Target Support Files/Pods-29th-iOS-week4-homework/Pods-29th-iOS-week4-homework.release.xcconfig"; sourceTree = "<group>"; };
+		B40CA85979B38C14BAC88298 /* Pods-29th-iOS-week4-homework.debug.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-29th-iOS-week4-homework.debug.xcconfig"; path = "Target Support Files/Pods-29th-iOS-week4-homework/Pods-29th-iOS-week4-homework.debug.xcconfig"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -63,6 +67,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				68C8AA87D0391972F51A0F6A /* Pods_29th_iOS_week4_homework.framework in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -74,6 +79,8 @@
 			children = (
 				6FF11D08274128EA00136A18 /* 29th-iOS-week4-homework */,
 				6FB4805C272C11BF003B9053 /* Products */,
+				A45FC67FF9F8C55E50A59B6E /* Pods */,
+				EDA835EFD584606C20647E61 /* Frameworks */,
 			);
 			sourceTree = "<group>";
 		};
@@ -195,6 +202,24 @@
 			path = Controller;
 			sourceTree = "<group>";
 		};
+		A45FC67FF9F8C55E50A59B6E /* Pods */ = {
+			isa = PBXGroup;
+			children = (
+				B40CA85979B38C14BAC88298 /* Pods-29th-iOS-week4-homework.debug.xcconfig */,
+				9BB75F5F4665F4A9DBDB2FE9 /* Pods-29th-iOS-week4-homework.release.xcconfig */,
+			);
+			name = Pods;
+			path = Pods;
+			sourceTree = "<group>";
+		};
+		EDA835EFD584606C20647E61 /* Frameworks */ = {
+			isa = PBXGroup;
+			children = (
+				0584413B77CB11F33A91C9C8 /* Pods_29th_iOS_week4_homework.framework */,
+			);
+			name = Frameworks;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXNativeTarget section */
@@ -202,9 +227,11 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 6FB4806F272C11C0003B9053 /* Build configuration list for PBXNativeTarget "29th-iOS-week4-homework" */;
 			buildPhases = (
+				728A527726BBBF3523ED89FF /* [CP] Check Pods Manifest.lock */,
 				6FB48057272C11BF003B9053 /* Sources */,
 				6FB48058272C11BF003B9053 /* Frameworks */,
 				6FB48059272C11BF003B9053 /* Resources */,
+				FF2E68A703E22C51A77F701E /* [CP] Embed Pods Frameworks */,
 			);
 			buildRules = (
 			);
@@ -263,6 +290,48 @@
 		};
 /* End PBXResourcesBuildPhase section */
 
+/* Begin PBXShellScriptBuildPhase section */
+		728A527726BBBF3523ED89FF /* [CP] Check Pods Manifest.lock */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+			);
+			inputPaths = (
+				"${PODS_PODFILE_DIR_PATH}/Podfile.lock",
+				"${PODS_ROOT}/Manifest.lock",
+			);
+			name = "[CP] Check Pods Manifest.lock";
+			outputFileListPaths = (
+			);
+			outputPaths = (
+				"$(DERIVED_FILE_DIR)/Pods-29th-iOS-week4-homework-checkManifestLockResult.txt",
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "diff \"${PODS_PODFILE_DIR_PATH}/Podfile.lock\" \"${PODS_ROOT}/Manifest.lock\" > /dev/null\nif [ $? != 0 ] ; then\n    # print error to STDERR\n    echo \"error: The sandbox is not in sync with the Podfile.lock. Run 'pod install' or update your CocoaPods installation.\" >&2\n    exit 1\nfi\n# This output is used by Xcode 'outputs' to avoid re-running this script phase.\necho \"SUCCESS\" > \"${SCRIPT_OUTPUT_FILE_0}\"\n";
+			showEnvVarsInLog = 0;
+		};
+		FF2E68A703E22C51A77F701E /* [CP] Embed Pods Frameworks */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputFileListPaths = (
+				"${PODS_ROOT}/Target Support Files/Pods-29th-iOS-week4-homework/Pods-29th-iOS-week4-homework-frameworks-${CONFIGURATION}-input-files.xcfilelist",
+			);
+			name = "[CP] Embed Pods Frameworks";
+			outputFileListPaths = (
+				"${PODS_ROOT}/Target Support Files/Pods-29th-iOS-week4-homework/Pods-29th-iOS-week4-homework-frameworks-${CONFIGURATION}-output-files.xcfilelist",
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "\"${PODS_ROOT}/Target Support Files/Pods-29th-iOS-week4-homework/Pods-29th-iOS-week4-homework-frameworks.sh\"\n";
+			showEnvVarsInLog = 0;
+		};
+/* End PBXShellScriptBuildPhase section */
+
 /* Begin PBXSourcesBuildPhase section */
 		6FB48057272C11BF003B9053 /* Sources */ = {
 			isa = PBXSourcesBuildPhase;
@@ -420,6 +489,7 @@
 		};
 		6FB48070272C11C0003B9053 /* Debug */ = {
 			isa = XCBuildConfiguration;
+			baseConfigurationReference = B40CA85979B38C14BAC88298 /* Pods-29th-iOS-week4-homework.debug.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
@@ -448,6 +518,7 @@
 		};
 		6FB48071272C11C0003B9053 /* Release */ = {
 			isa = XCBuildConfiguration;
+			baseConfigurationReference = 9BB75F5F4665F4A9DBDB2FE9 /* Pods-29th-iOS-week4-homework.release.xcconfig */;
 			buildSettings = {
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				ASSETCATALOG_COMPILER_GLOBAL_ACCENT_COLOR_NAME = AccentColor;
diff --git a/29th-iOS-week4-homework/29th-iOS-week4-homework.xcworkspace/contents.xcworkspacedata b/29th-iOS-week4-homework/29th-iOS-week4-homework.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..ad33960
--- /dev/null
+++ b/29th-iOS-week4-homework/29th-iOS-week4-homework.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "group:29th-iOS-week4-homework.xcodeproj">
+   </FileRef>
+   <FileRef
+      location = "group:Pods/Pods.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/29th-iOS-week4-homework/29th-iOS-week4-homework/GoogleLogin/Controller/SignInViewController.swift b/29th-iOS-week4-homework/29th-iOS-week4-homework/GoogleLogin/Controller/SignInViewController.swift
index 897f760..ab3974f 100644
--- a/29th-iOS-week4-homework/29th-iOS-week4-homework/GoogleLogin/Controller/SignInViewController.swift
+++ b/29th-iOS-week4-homework/29th-iOS-week4-homework/GoogleLogin/Controller/SignInViewController.swift
@@ -33,9 +33,9 @@ class SignInViewController: UIViewController, UITextFieldDelegate {
       nextVC.modalPresentationStyle = .fullScreen
       nextVC.modalTransitionStyle = .crossDissolve
            
-      self.nameTextField.text=""
-      self.emailTextField.text=""
-      self.pwdTextField.text=""
+      [nameTextField,emailTextField,pwdTextField].forEach{
+        $0.text?.removeAll()
+      }
            
       self.present(nextVC, animated: true, completion: nil)
     }
@@ -43,11 +43,11 @@ class SignInViewController: UIViewController, UITextFieldDelegate {
     @IBAction func touchUpSignUpButton(_ sender: Any) {
       guard let nextVC = self.storyboard?.instantiateViewController(withIdentifier: "SignUpViewController")
       else {return}
-            
-      self.nameTextField.text = ""
-      self.emailTextField.text = ""
-      self.pwdTextField.text = ""
-            
+        
+      [nameTextField,emailTextField,pwdTextField].forEach{
+        $0.text?.removeAll()
+      }
+        
       self.navigationController?.pushViewController(nextVC, animated: true)
     }
     
diff --git a/29th-iOS-week4-homework/29th-iOS-week4-homework/GoogleLogin/Controller/SignUpViewController.swift b/29th-iOS-week4-homework/29th-iOS-week4-homework/GoogleLogin/Controller/SignUpViewController.swift
index 734bdda..ee99e77 100644
--- a/29th-iOS-week4-homework/29th-iOS-week4-homework/GoogleLogin/Controller/SignUpViewController.swift
+++ b/29th-iOS-week4-homework/29th-iOS-week4-homework/GoogleLogin/Controller/SignUpViewController.swift
@@ -19,6 +19,7 @@ class SignUpViewController: UIViewController, UITextFieldDelegate {
     
     override func viewDidLoad() {
         super.viewDidLoad()
+        nameTextField.delegate = self
     }
     
     // MARK: - IBAction Part
@@ -31,9 +32,9 @@ class SignUpViewController: UIViewController, UITextFieldDelegate {
         nextVC.modalPresentationStyle = .fullScreen
         nextVC.modalTransitionStyle = .crossDissolve
         
-        self.nameTextField.text = ""
-        self.emailTextField.text = ""
-        self.pwdTextField.text = ""
+        [nameTextField,emailTextField,pwdTextField].forEach{
+            $0.text?.removeAll()
+        }
         
         self.present(nextVC, animated: true, completion: nil)
     }
@@ -43,4 +44,17 @@ class SignUpViewController: UIViewController, UITextFieldDelegate {
     override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?){
         self.view.endEditing(true)
     }
+    
+    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
+        if textField == self.nameTextField {
+            textField.resignFirstResponder()
+            self.emailTextField.becomeFirstResponder()
+        }
+        else if textField == self.emailTextField {
+            textField.resignFirstResponder()
+            self.pwdTextField.becomeFirstResponder()
+        }
+        textField.resignFirstResponder()
+        return true
+    }
 }
diff --git a/29th-iOS-week4-homework/Podfile b/29th-iOS-week4-homework/Podfile
new file mode 100644
index 0000000..3bf9508
--- /dev/null
+++ b/29th-iOS-week4-homework/Podfile
@@ -0,0 +1,12 @@
+# Uncomment the next line to define a global platform for your project
+platform :ios, '13.0'
+
+target '29th-iOS-week4-homework' do
+  # Comment the next line if you don't want to use dynamic frameworks
+  use_frameworks!
+
+  # Pods for 29th-iOS-week4-homework
+  pod 'Alamofire', '~> 5.4'
+
+end
+
diff --git a/29th-iOS-week4-homework/Podfile.lock b/29th-iOS-week4-homework/Podfile.lock
new file mode 100644
index 0000000..7e54689
--- /dev/null
+++ b/29th-iOS-week4-homework/Podfile.lock
@@ -0,0 +1,16 @@
+PODS:
+  - Alamofire (5.4.4)
+
+DEPENDENCIES:
+  - Alamofire (~> 5.4)
+
+SPEC REPOS:
+  trunk:
+    - Alamofire
+
+SPEC CHECKSUMS:
+  Alamofire: f3b09a368f1582ab751b3fff5460276e0d2cf5c9
+
+PODFILE CHECKSUM: bb191e99a4afadba0c7dbcac3c5ca84ea299daea
+
+COCOAPODS: 1.11.2