Contents
About ................................................................................................................................................................................... 1
Chapter 1: Getting started with iOS Development ...................................................................................... 2
Section 1.1: Creating a default Single View Application ............................................................................................. 2
Section 1.2: Hello World ................................................................................................................................................. 6
Section 1.3: Xcode Interface ....................................................................................................................................... 11
Section 1.4: Create your first program in Swift 3 ...................................................................................................... 17
Chapter 2: UILabel ...................................................................................................................................................... 22
Section 2.1: Create a UILabel ...................................................................................................................................... 22
Section 2.2: Number of Lines ..................................................................................................................................... 24
Section 2.3: Set Font .................................................................................................................................................... 25
Section 2.4: Text Color ................................................................................................................................................ 26
Section 2.5: Background Color .................................................................................................................................. 27
Section 2.6: Size to fit .................................................................................................................................................. 27
Section 2.7: Text alignment ........................................................................................................................................ 30
Section 2.8: Calculate Content Bounds (for i.e. dynamic cell heights) .................................................................. 30
Section 2.9: Label Attributed Text .............................................................................................................................. 32
Section 2.10: Clickable Label ...................................................................................................................................... 38
Section 2.11: Variable height using constraints ......................................................................................................... 39
Section 2.12: LineBreakMode ...................................................................................................................................... 39
Section 2.13: Add shadows to text ............................................................................................................................. 41
Section 2.14: Changing Text in an Existing Label ..................................................................................................... 41
Section 2.15: Auto-size label to fit text ....................................................................................................................... 42
Section 2.16: Get UILabel's size strictly based on its text and font ......................................................................... 43
Section 2.17: Highlighted and Highlighted Text Color .............................................................................................. 44
Section 2.18: Justify Text ............................................................................................................................................ 44
Section 2.19: Dynamic label frame from unknown text length ............................................................................... 45
Chapter 3: UILabel text underlining .................................................................................................................. 47
Section 3.1: Underlining a text in a UILabel using Objective C ................................................................................ 47
Section 3.2: Underlining a text in UILabel using Swift .............................................................................................. 47
Chapter 4: attributedText in UILabel ............................................................................................................... 48
Section 4.1: HTML text in UILabel ............................................................................................................................... 48
Section 4.2: Set dierent property to text in single UILabel ................................................................................... 48
Chapter 5: UIButton ................................................................................................................................................... 50
Section 5.1: Creating a UIButton ................................................................................................................................ 50
Section 5.2: Attaching a Method to a Button ........................................................................................................... 50
Section 5.3: Setting Font ............................................................................................................................................. 51
Section 5.4: Set Image ................................................................................................................................................ 51
Section 5.5: Get UIButton's size strictly based on its text and font ........................................................................ 51
Section 5.6: Disabling a UIButton ............................................................................................................................... 52
Section 5.7: Set title ..................................................................................................................................................... 52
Section 5.8: Set title color ........................................................................................................................................... 52
Section 5.9: Horizontally aligning contents .............................................................................................................. 53
Section 5.10: Getting the title label ............................................................................................................................. 53
Section 5.11: Adding an action to an UIButton via Code (programmatically) ....................................................... 54
Chapter 6: UIDatePicker .......................................................................................................................................... 55
Section 6.1: Create a Date Picker ............................................................................................................................... 55
Section 6.2: Setting Minimum-Maximum Date ......................................................................................................... 55
, Section 6.3: Modes ....................................................................................................................................................... 55
Section 6.4: Setting minute interval ........................................................................................................................... 55
Section 6.5: Count Down Duration ............................................................................................................................. 56
Chapter 7: UILocalNotification ............................................................................................................................ 57
Section 7.1: Scheduling a local notification ............................................................................................................... 57
Section 7.2: Presenting a local notification immediately ........................................................................................ 57
Section 7.3: Managing local notifications using UUID ............................................................................................. 58
Section 7.4: Registering for local notifications ......................................................................................................... 59
Section 7.5: what's new in UILocalNotification with iOS10 ....................................................................................... 60
Section 7.6: Responding to received local notification ............................................................................................ 62
Section 7.7: Register and Schedule Local Notification in Swift 3.0 (iOS 10) ........................................................... 62
Chapter 8: UIImage .................................................................................................................................................... 64
Section 8.1: Creating UIImage .................................................................................................................................... 64
Section 8.2: Comparing Images ................................................................................................................................. 65
Section 8.3: Gradient Image with Colors ................................................................................................................... 66
Section 8.4: Convert UIImage to/from base64 encoding ....................................................................................... 66
Section 8.5: Take a Snapshot of a UIView ................................................................................................................ 67
Section 8.6: Change UIImage Color ........................................................................................................................... 67
Section 8.7: Apply UIColor to UIImage ...................................................................................................................... 67
Section 8.8: Creating and Initializing Image Objects with file contents ................................................................. 68
Section 8.9: Resizable image with caps .................................................................................................................... 68
Section 8.10: Gradient Background Layer for Bounds ............................................................................................ 69
Chapter 9: Convert NSAttributedString to UIImage ................................................................................. 70
Section 9.1: NSAttributedString to UIImage Conversion .......................................................................................... 70
Chapter 10: UIImagePickerController ............................................................................................................... 71
Section 10.1: Generic usage of UIImagePickerController ......................................................................................... 71
Chapter 11: UIImageView ......................................................................................................................................... 73
Section 11.1: UIImage masked with Label .................................................................................................................. 73
Section 11.2: Making an image into a circle or rounded .......................................................................................... 73
Section 11.3: How the Mode property aects an image .......................................................................................... 74
Section 11.4: Animating a UIImageView ..................................................................................................................... 80
Section 11.5: Create a UIImageView ........................................................................................................................... 81
Section 11.6: Change color of an image .................................................................................................................... 82
Section 11.7: Assigning an image to a UIImageView ................................................................................................ 82
Chapter 12: Resizing UIImage ............................................................................................................................... 83
Section 12.1: Resize any image by size & quality ...................................................................................................... 83
Chapter 13: Cut a UIImage into a circle ........................................................................................................... 84
Section 13.1: Cut a image into a circle - Objective C ................................................................................................ 84
Section 13.2: SWIFT 3 Example ................................................................................................................................... 85
Chapter 14: UITableView ......................................................................................................................................... 87
Section 14.1: Self-Sizing Cells ....................................................................................................................................... 87
Section 14.2: Custom Cells .......................................................................................................................................... 87
Section 14.3: Separator Lines ...................................................................................................................................... 90
Section 14.4: Delegate and Datasource .................................................................................................................... 92
Section 14.5: Creating a UITableView ........................................................................................................................ 98
Section 14.6: Swipe to Delete Rows ......................................................................................................................... 102
Section 14.7: Expanding & Collapsing UITableViewCells ....................................................................................... 105
Chapter 15: UITableViewController ................................................................................................................. 108
Section 15.1: TableView with dynamic properties with tableviewCellStyle basic ................................................ 108
, Section 15.2: TableView with Custom Cell ............................................................................................................... 109
Chapter 16: UIRefreshControl TableView ..................................................................................................... 111
Section 16.1: Set up refreshControl on tableView: .................................................................................................. 111
Section 16.2: Objective-C Example .......................................................................................................................... 111
Chapter 17: UITableViewCell ............................................................................................................................... 113
Section 17.1: Xib file of UITableViewCell ................................................................................................................... 113
Chapter 18: Custom methods of selection of UITableViewCells ....................................................... 114
Section 18.1: Distinction between single and double selection on row ................................................................. 114
Chapter 19: Custom methods of selection of UITableViewCells ....................................................... 115
Section 19.1: Distinction between single and double selection on row ................................................................. 115
Chapter 20: UIView .................................................................................................................................................. 116
Section 20.1: Make the view rounded ...................................................................................................................... 116
Section 20.2: Using IBInspectable and IBDesignable ............................................................................................ 118
Section 20.3: Taking a snapshot .............................................................................................................................. 121
Section 20.4: Create a UIView .................................................................................................................................. 121
Section 20.5: Shake a View ...................................................................................................................................... 121
Section 20.6: Utilizing Intrinsic Content Size ........................................................................................................... 122
Section 20.7: Programmatically manage UIView insertion and deletion into and from another UIView
............................................................................................................................................................................. 124
Section 20.8: Create UIView using Autolayout ....................................................................................................... 125
Section 20.9: Animating a UIView ............................................................................................................................ 127
Section 20.10: UIView extension for size and frame attributes ............................................................................ 127
Chapter 21: Snapshot of UIView ........................................................................................................................ 129
Section 21.1: Getting the Snapshot ........................................................................................................................... 129
Section 21.2: Snapshot with subview with other markup and text ....................................................................... 129
Chapter 22: UIAlertController ............................................................................................................................. 131
Section 22.1: AlertViews with UIAlertController ...................................................................................................... 131
Section 22.2: Action Sheets with UIAlertController ................................................................................................ 132
Section 22.3: Adding Text Field in UIAlertController like a prompt Box .............................................................. 135
Section 22.4: Highlighting an action button ........................................................................................................... 135
Section 22.5: Displaying and handling alerts ......................................................................................................... 136
Chapter 23: UIColor ................................................................................................................................................. 141
Section 23.1: Creating a UIColor ............................................................................................................................... 141
Section 23.2: Creating a UIColor from hexadecimal number or string ............................................................... 142
Section 23.3: Color with Alpha component ............................................................................................................. 144
Section 23.4: Undocumented Methods ................................................................................................................... 145
Section 23.5: UIColor from an image pattern ........................................................................................................ 146
Section 23.6: Lighter and Darker Shade of a given UIColor ................................................................................. 147
Section 23.7: Make user defined attributes apply the CGColor datatype ........................................................... 148
Chapter 24: UITextView ........................................................................................................................................ 149
Section 24.1: Set attributed text ............................................................................................................................... 149
Section 24.2: Change font ........................................................................................................................................ 149
Section 24.3: Auto Detect Links, Addresses, Dates, and more ............................................................................. 149
Section 24.4: Change text ......................................................................................................................................... 150
Section 24.5: Change text alignment ...................................................................................................................... 150
Section 24.6: UITextViewDelegate methods .......................................................................................................... 150
Section 24.7: Change text color ............................................................................................................................... 151
Section 24.8: Remove extra paddings to fit to a precisely measured text ......................................................... 151
Section 24.9: Getting and Setting the Cursor Postition ......................................................................................... 151
, Section 24.10: UITextView with HTML text .............................................................................................................. 153
Section 24.11: Check to see if empty or nil .............................................................................................................. 153
Chapter 25: UITextField Delegate .................................................................................................................... 154
Section 25.1: Actions when a user has started/ended interacting with a textfield ............................................. 154
Section 25.2: UITextField - Restrict textfield to certain characters ...................................................................... 155
Chapter 26: UINavigationController ............................................................................................................... 156
Section 26.1: Embed a view controller in a navigation controller programmatically ........................................ 156
Section 26.2: Popping in a Navigation Controller .................................................................................................. 156
Section 26.3: Purpose ................................................................................................................................................ 156
Section 26.4: Pushing a view controller onto the navigation stack ..................................................................... 157
Section 26.5: Creating a NavigationController ....................................................................................................... 157
Chapter 27: UIGestureRecognizer .................................................................................................................... 158
Section 27.1: UITapGestureRecognizer ................................................................................................................... 158
Section 27.2: UITapGestureRecognizer (Double Tap) .......................................................................................... 159
Section 27.3: Adding a Gesture recognizer in the Interface Builder .................................................................... 159
Section 27.4: UILongPressGestureRecognizer ....................................................................................................... 160
Section 27.5: UISwipeGestureRecognizer ............................................................................................................... 161
Section 27.6: UIPinchGestureRecognizer ................................................................................................................ 162
Section 27.7: UIRotationGestureRecognizer ........................................................................................................... 163
Chapter 28: UIBarButtonItem ............................................................................................................................ 164
Section 28.1: Creating a UIBarButtonItem in the Interface Builder ...................................................................... 164
Section 28.2: Creating a UIBarButtonItem ............................................................................................................. 167
Section 28.3: Bar Button Item Original Image with no Tint Color ........................................................................ 167
Chapter 29: UIScrollView ....................................................................................................................................... 168
Section 29.1: Scrolling content with Auto Layout enabled .................................................................................... 168
Section 29.2: Create a UIScrollView ........................................................................................................................ 171
Section 29.3: ScrollView with AutoLayout ............................................................................................................... 171
Section 29.4: Detecting when UIScrollView finished scrolling with delegate methods ...................................... 176
Section 29.5: Enable/Disable Scrolling ................................................................................................................... 176
Section 29.6: Zoom In/Out UIImageView ............................................................................................................... 177
Section 29.7: Scroll View Content Size ..................................................................................................................... 178
Section 29.8: Restrict scrolling direction ................................................................................................................. 178
Chapter 30: UIStackView ...................................................................................................................................... 179
Section 30.1: Center Buttons with UIStackview ....................................................................................................... 179
Section 30.2: Create a horizontal stack view programmatically ......................................................................... 183
Section 30.3: Create a vertical stack view programmatically .............................................................................. 184
Chapter 31: Dynamically updating a UIStackView .................................................................................. 185
Section 31.1: Connect the UISwitch to an action we can animate switching between a horizontal or vertical
layout of the image views ................................................................................................................................ 185
Chapter 32: UIScrollView with StackView child ......................................................................................... 186
Section 32.1: A complex StackView inside Scrollview Example ............................................................................. 186
Section 32.2: Preventing ambiguous layout ........................................................................................................... 187
Section 32.3: Scrolling to content inside nested StackViews ................................................................................ 188
Chapter 33: UIScrollView AutoLayout ............................................................................................................ 189
Section 33.1: ScrollableController ............................................................................................................................. 189
Section 33.2: UIScrollView dynamic content size through Storyboard ............................................................... 193
Chapter 34: UITextField ......................................................................................................................................... 195
Section 34.1: Get Keyboard Focus and Hide Keyboard ........................................................................................ 195
Section 34.2: Dismiss keyboard when user pushes the return button ................................................................. 195
About ................................................................................................................................................................................... 1
Chapter 1: Getting started with iOS Development ...................................................................................... 2
Section 1.1: Creating a default Single View Application ............................................................................................. 2
Section 1.2: Hello World ................................................................................................................................................. 6
Section 1.3: Xcode Interface ....................................................................................................................................... 11
Section 1.4: Create your first program in Swift 3 ...................................................................................................... 17
Chapter 2: UILabel ...................................................................................................................................................... 22
Section 2.1: Create a UILabel ...................................................................................................................................... 22
Section 2.2: Number of Lines ..................................................................................................................................... 24
Section 2.3: Set Font .................................................................................................................................................... 25
Section 2.4: Text Color ................................................................................................................................................ 26
Section 2.5: Background Color .................................................................................................................................. 27
Section 2.6: Size to fit .................................................................................................................................................. 27
Section 2.7: Text alignment ........................................................................................................................................ 30
Section 2.8: Calculate Content Bounds (for i.e. dynamic cell heights) .................................................................. 30
Section 2.9: Label Attributed Text .............................................................................................................................. 32
Section 2.10: Clickable Label ...................................................................................................................................... 38
Section 2.11: Variable height using constraints ......................................................................................................... 39
Section 2.12: LineBreakMode ...................................................................................................................................... 39
Section 2.13: Add shadows to text ............................................................................................................................. 41
Section 2.14: Changing Text in an Existing Label ..................................................................................................... 41
Section 2.15: Auto-size label to fit text ....................................................................................................................... 42
Section 2.16: Get UILabel's size strictly based on its text and font ......................................................................... 43
Section 2.17: Highlighted and Highlighted Text Color .............................................................................................. 44
Section 2.18: Justify Text ............................................................................................................................................ 44
Section 2.19: Dynamic label frame from unknown text length ............................................................................... 45
Chapter 3: UILabel text underlining .................................................................................................................. 47
Section 3.1: Underlining a text in a UILabel using Objective C ................................................................................ 47
Section 3.2: Underlining a text in UILabel using Swift .............................................................................................. 47
Chapter 4: attributedText in UILabel ............................................................................................................... 48
Section 4.1: HTML text in UILabel ............................................................................................................................... 48
Section 4.2: Set dierent property to text in single UILabel ................................................................................... 48
Chapter 5: UIButton ................................................................................................................................................... 50
Section 5.1: Creating a UIButton ................................................................................................................................ 50
Section 5.2: Attaching a Method to a Button ........................................................................................................... 50
Section 5.3: Setting Font ............................................................................................................................................. 51
Section 5.4: Set Image ................................................................................................................................................ 51
Section 5.5: Get UIButton's size strictly based on its text and font ........................................................................ 51
Section 5.6: Disabling a UIButton ............................................................................................................................... 52
Section 5.7: Set title ..................................................................................................................................................... 52
Section 5.8: Set title color ........................................................................................................................................... 52
Section 5.9: Horizontally aligning contents .............................................................................................................. 53
Section 5.10: Getting the title label ............................................................................................................................. 53
Section 5.11: Adding an action to an UIButton via Code (programmatically) ....................................................... 54
Chapter 6: UIDatePicker .......................................................................................................................................... 55
Section 6.1: Create a Date Picker ............................................................................................................................... 55
Section 6.2: Setting Minimum-Maximum Date ......................................................................................................... 55
, Section 6.3: Modes ....................................................................................................................................................... 55
Section 6.4: Setting minute interval ........................................................................................................................... 55
Section 6.5: Count Down Duration ............................................................................................................................. 56
Chapter 7: UILocalNotification ............................................................................................................................ 57
Section 7.1: Scheduling a local notification ............................................................................................................... 57
Section 7.2: Presenting a local notification immediately ........................................................................................ 57
Section 7.3: Managing local notifications using UUID ............................................................................................. 58
Section 7.4: Registering for local notifications ......................................................................................................... 59
Section 7.5: what's new in UILocalNotification with iOS10 ....................................................................................... 60
Section 7.6: Responding to received local notification ............................................................................................ 62
Section 7.7: Register and Schedule Local Notification in Swift 3.0 (iOS 10) ........................................................... 62
Chapter 8: UIImage .................................................................................................................................................... 64
Section 8.1: Creating UIImage .................................................................................................................................... 64
Section 8.2: Comparing Images ................................................................................................................................. 65
Section 8.3: Gradient Image with Colors ................................................................................................................... 66
Section 8.4: Convert UIImage to/from base64 encoding ....................................................................................... 66
Section 8.5: Take a Snapshot of a UIView ................................................................................................................ 67
Section 8.6: Change UIImage Color ........................................................................................................................... 67
Section 8.7: Apply UIColor to UIImage ...................................................................................................................... 67
Section 8.8: Creating and Initializing Image Objects with file contents ................................................................. 68
Section 8.9: Resizable image with caps .................................................................................................................... 68
Section 8.10: Gradient Background Layer for Bounds ............................................................................................ 69
Chapter 9: Convert NSAttributedString to UIImage ................................................................................. 70
Section 9.1: NSAttributedString to UIImage Conversion .......................................................................................... 70
Chapter 10: UIImagePickerController ............................................................................................................... 71
Section 10.1: Generic usage of UIImagePickerController ......................................................................................... 71
Chapter 11: UIImageView ......................................................................................................................................... 73
Section 11.1: UIImage masked with Label .................................................................................................................. 73
Section 11.2: Making an image into a circle or rounded .......................................................................................... 73
Section 11.3: How the Mode property aects an image .......................................................................................... 74
Section 11.4: Animating a UIImageView ..................................................................................................................... 80
Section 11.5: Create a UIImageView ........................................................................................................................... 81
Section 11.6: Change color of an image .................................................................................................................... 82
Section 11.7: Assigning an image to a UIImageView ................................................................................................ 82
Chapter 12: Resizing UIImage ............................................................................................................................... 83
Section 12.1: Resize any image by size & quality ...................................................................................................... 83
Chapter 13: Cut a UIImage into a circle ........................................................................................................... 84
Section 13.1: Cut a image into a circle - Objective C ................................................................................................ 84
Section 13.2: SWIFT 3 Example ................................................................................................................................... 85
Chapter 14: UITableView ......................................................................................................................................... 87
Section 14.1: Self-Sizing Cells ....................................................................................................................................... 87
Section 14.2: Custom Cells .......................................................................................................................................... 87
Section 14.3: Separator Lines ...................................................................................................................................... 90
Section 14.4: Delegate and Datasource .................................................................................................................... 92
Section 14.5: Creating a UITableView ........................................................................................................................ 98
Section 14.6: Swipe to Delete Rows ......................................................................................................................... 102
Section 14.7: Expanding & Collapsing UITableViewCells ....................................................................................... 105
Chapter 15: UITableViewController ................................................................................................................. 108
Section 15.1: TableView with dynamic properties with tableviewCellStyle basic ................................................ 108
, Section 15.2: TableView with Custom Cell ............................................................................................................... 109
Chapter 16: UIRefreshControl TableView ..................................................................................................... 111
Section 16.1: Set up refreshControl on tableView: .................................................................................................. 111
Section 16.2: Objective-C Example .......................................................................................................................... 111
Chapter 17: UITableViewCell ............................................................................................................................... 113
Section 17.1: Xib file of UITableViewCell ................................................................................................................... 113
Chapter 18: Custom methods of selection of UITableViewCells ....................................................... 114
Section 18.1: Distinction between single and double selection on row ................................................................. 114
Chapter 19: Custom methods of selection of UITableViewCells ....................................................... 115
Section 19.1: Distinction between single and double selection on row ................................................................. 115
Chapter 20: UIView .................................................................................................................................................. 116
Section 20.1: Make the view rounded ...................................................................................................................... 116
Section 20.2: Using IBInspectable and IBDesignable ............................................................................................ 118
Section 20.3: Taking a snapshot .............................................................................................................................. 121
Section 20.4: Create a UIView .................................................................................................................................. 121
Section 20.5: Shake a View ...................................................................................................................................... 121
Section 20.6: Utilizing Intrinsic Content Size ........................................................................................................... 122
Section 20.7: Programmatically manage UIView insertion and deletion into and from another UIView
............................................................................................................................................................................. 124
Section 20.8: Create UIView using Autolayout ....................................................................................................... 125
Section 20.9: Animating a UIView ............................................................................................................................ 127
Section 20.10: UIView extension for size and frame attributes ............................................................................ 127
Chapter 21: Snapshot of UIView ........................................................................................................................ 129
Section 21.1: Getting the Snapshot ........................................................................................................................... 129
Section 21.2: Snapshot with subview with other markup and text ....................................................................... 129
Chapter 22: UIAlertController ............................................................................................................................. 131
Section 22.1: AlertViews with UIAlertController ...................................................................................................... 131
Section 22.2: Action Sheets with UIAlertController ................................................................................................ 132
Section 22.3: Adding Text Field in UIAlertController like a prompt Box .............................................................. 135
Section 22.4: Highlighting an action button ........................................................................................................... 135
Section 22.5: Displaying and handling alerts ......................................................................................................... 136
Chapter 23: UIColor ................................................................................................................................................. 141
Section 23.1: Creating a UIColor ............................................................................................................................... 141
Section 23.2: Creating a UIColor from hexadecimal number or string ............................................................... 142
Section 23.3: Color with Alpha component ............................................................................................................. 144
Section 23.4: Undocumented Methods ................................................................................................................... 145
Section 23.5: UIColor from an image pattern ........................................................................................................ 146
Section 23.6: Lighter and Darker Shade of a given UIColor ................................................................................. 147
Section 23.7: Make user defined attributes apply the CGColor datatype ........................................................... 148
Chapter 24: UITextView ........................................................................................................................................ 149
Section 24.1: Set attributed text ............................................................................................................................... 149
Section 24.2: Change font ........................................................................................................................................ 149
Section 24.3: Auto Detect Links, Addresses, Dates, and more ............................................................................. 149
Section 24.4: Change text ......................................................................................................................................... 150
Section 24.5: Change text alignment ...................................................................................................................... 150
Section 24.6: UITextViewDelegate methods .......................................................................................................... 150
Section 24.7: Change text color ............................................................................................................................... 151
Section 24.8: Remove extra paddings to fit to a precisely measured text ......................................................... 151
Section 24.9: Getting and Setting the Cursor Postition ......................................................................................... 151
, Section 24.10: UITextView with HTML text .............................................................................................................. 153
Section 24.11: Check to see if empty or nil .............................................................................................................. 153
Chapter 25: UITextField Delegate .................................................................................................................... 154
Section 25.1: Actions when a user has started/ended interacting with a textfield ............................................. 154
Section 25.2: UITextField - Restrict textfield to certain characters ...................................................................... 155
Chapter 26: UINavigationController ............................................................................................................... 156
Section 26.1: Embed a view controller in a navigation controller programmatically ........................................ 156
Section 26.2: Popping in a Navigation Controller .................................................................................................. 156
Section 26.3: Purpose ................................................................................................................................................ 156
Section 26.4: Pushing a view controller onto the navigation stack ..................................................................... 157
Section 26.5: Creating a NavigationController ....................................................................................................... 157
Chapter 27: UIGestureRecognizer .................................................................................................................... 158
Section 27.1: UITapGestureRecognizer ................................................................................................................... 158
Section 27.2: UITapGestureRecognizer (Double Tap) .......................................................................................... 159
Section 27.3: Adding a Gesture recognizer in the Interface Builder .................................................................... 159
Section 27.4: UILongPressGestureRecognizer ....................................................................................................... 160
Section 27.5: UISwipeGestureRecognizer ............................................................................................................... 161
Section 27.6: UIPinchGestureRecognizer ................................................................................................................ 162
Section 27.7: UIRotationGestureRecognizer ........................................................................................................... 163
Chapter 28: UIBarButtonItem ............................................................................................................................ 164
Section 28.1: Creating a UIBarButtonItem in the Interface Builder ...................................................................... 164
Section 28.2: Creating a UIBarButtonItem ............................................................................................................. 167
Section 28.3: Bar Button Item Original Image with no Tint Color ........................................................................ 167
Chapter 29: UIScrollView ....................................................................................................................................... 168
Section 29.1: Scrolling content with Auto Layout enabled .................................................................................... 168
Section 29.2: Create a UIScrollView ........................................................................................................................ 171
Section 29.3: ScrollView with AutoLayout ............................................................................................................... 171
Section 29.4: Detecting when UIScrollView finished scrolling with delegate methods ...................................... 176
Section 29.5: Enable/Disable Scrolling ................................................................................................................... 176
Section 29.6: Zoom In/Out UIImageView ............................................................................................................... 177
Section 29.7: Scroll View Content Size ..................................................................................................................... 178
Section 29.8: Restrict scrolling direction ................................................................................................................. 178
Chapter 30: UIStackView ...................................................................................................................................... 179
Section 30.1: Center Buttons with UIStackview ....................................................................................................... 179
Section 30.2: Create a horizontal stack view programmatically ......................................................................... 183
Section 30.3: Create a vertical stack view programmatically .............................................................................. 184
Chapter 31: Dynamically updating a UIStackView .................................................................................. 185
Section 31.1: Connect the UISwitch to an action we can animate switching between a horizontal or vertical
layout of the image views ................................................................................................................................ 185
Chapter 32: UIScrollView with StackView child ......................................................................................... 186
Section 32.1: A complex StackView inside Scrollview Example ............................................................................. 186
Section 32.2: Preventing ambiguous layout ........................................................................................................... 187
Section 32.3: Scrolling to content inside nested StackViews ................................................................................ 188
Chapter 33: UIScrollView AutoLayout ............................................................................................................ 189
Section 33.1: ScrollableController ............................................................................................................................. 189
Section 33.2: UIScrollView dynamic content size through Storyboard ............................................................... 193
Chapter 34: UITextField ......................................................................................................................................... 195
Section 34.1: Get Keyboard Focus and Hide Keyboard ........................................................................................ 195
Section 34.2: Dismiss keyboard when user pushes the return button ................................................................. 195
