First pass at AutoLayout for variable height sticky views.

Author: bchrobot

Example/StickyHeaderTabController.xcodeproj/project.pbxproj

@@ -517,7 +517,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 8.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
@@ -557,7 +557,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 8.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";

Example/StickyHeaderTabController/ExampleTabController.swift

@@ -39,7 +39,7 @@ class ExampleTabController: StickyHeaderTabController {
     // Private Methods
 
     fileprivate func updateAvatarSize() {
-        let maxValue = exampleHeader.headerHeight
+        let maxValue = exampleHeader.bounds.height
         let minValue = exampleHeader.pinnedHeight
         let currentValue = exampleHero.frame.origin.y
 

Example/StickyHeaderTabController/StickyViews/ExampleStickyHeaderView.swift

@@ -13,6 +13,10 @@ class ExampleStickyHeaderView: StickyHeaderView {
 
     // MARK: - Properties
 
+    override public var pinnedHeight: CGFloat {
+        return 60.0
+    }
+
     var percentVisibleName: CGFloat = 0.0 {
         didSet {
             if percentVisibleName != oldValue {
@@ -46,6 +50,10 @@ class ExampleStickyHeaderView: StickyHeaderView {
     // MARK: - Setup
 
     private func commonSetup() {
+        let heightConstraint = heightAnchor.constraint(equalToConstant: 170.0)
+        heightConstraint.priority = 500.0
+        heightConstraint.isActive = true
+
         setUpAvatar()
         setUpBlur()
         setUpNameLabel()

Example/StickyHeaderTabController/StickyViews/ExampleStickyHeroView.swift

@@ -9,7 +9,7 @@
 import UIKit
 import StickyHeaderTabController
 
-class ExampleStickyHeroView: StickyHeaderHeroView {
+class ExampleStickyHeroView: UIView {
 
     // MARK: - Properties
 
@@ -41,6 +41,8 @@ class ExampleStickyHeroView: StickyHeaderHeroView {
     // MARK: - Setup
 
     private func commonSetup() {
+        heightAnchor.constraint(equalToConstant: 200.0).isActive = true
+
         backgroundColor = UIColor(red: 0.0, green: 0.4, blue: 0.4, alpha: 1.0)
 
         setUpAvatar()

StickyHeaderTabController.podspec

@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'StickyHeaderTabController'
-  s.version          = '0.1.0'
+  s.version          = '0.0.1'
   s.summary          = 'Tabbed content controller with sticky header and hero.'
 
 # This description is used to generate tags and improve search results.
@@ -28,7 +28,7 @@ Tabbed content controller with sticky header and hero.
   s.source           = { :git => 'https://github.com/bchrobot/StickyHeaderTabController.git', :tag => s.version.to_s }
   s.social_media_url = 'https://twitter.com/bchrobot'
 
-  s.ios.deployment_target = '8.0'
+  s.ios.deployment_target = '9.0'
 
   s.source_files = 'StickyHeaderTabController/Classes/**/*'