Add back iOS 8+ compatibility

Author: kevin-hirsch

ImagePickerSheetController.podspec

@@ -56,10 +56,10 @@ Pod::Spec.new do |s|
   #  the deployment target. You can optionally include the target after the platform.
   #
 
-  s.platform     = :ios, "9.0"
+  s.platform     = :ios, "8.0"
 
   #  When using multiple platforms
-  s.ios.deployment_target = "9.0"
+  s.ios.deployment_target = "8.0"
   # s.osx.deployment_target = "10.7"
 
 
@@ -114,6 +114,6 @@ Pod::Spec.new do |s|
   #  you can include multiple dependencies to ensure it works.
 
   s.requires_arc = true
-  
+
 
 end

ImagePickerSheetController/ImagePickerSheetController.xcodeproj/project.pbxproj

@@ -564,7 +564,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.3;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
@@ -608,7 +608,7 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.3;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
@@ -630,7 +630,7 @@
 				FRAMEWORK_SEARCH_PATHS = "";
 				INFOPLIST_FILE = ImagePickerSheetController/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "ch.laurinbrandner.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -650,7 +650,7 @@
 				FRAMEWORK_SEARCH_PATHS = "";
 				INFOPLIST_FILE = ImagePickerSheetController/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
-				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "ch.laurinbrandner.$(PRODUCT_NAME:rfc1034identifier)";
 				PRODUCT_NAME = "$(TARGET_NAME)";

ImagePickerSheetController/ImagePickerSheetController/AnimationController.swift

@@ -56,6 +56,10 @@ class AnimationController: NSObject {
 extension AnimationController: UIViewControllerAnimatedTransitioning {
 
     func transitionDuration(transitionContext: UIViewControllerContextTransitioning?) -> NSTimeInterval {
+        guard #available(iOS 9, *) else {
+            return 0.3
+        }
+        
         return 0.25
     }
 

ImagePickerSheetController/ImagePickerSheetController/ImagePickerSheetController.swift

@@ -111,6 +111,10 @@ public class ImagePickerSheetController: UIViewController {
     private var maximumPreviewHeight: CGFloat = 129
 
     private var previewCheckmarkInset: CGFloat {
+        guard #available(iOS 9, *) else {
+            return 3.5
+        }
+        
         return 12.5
     }
 
@@ -231,7 +235,9 @@ public class ImagePickerSheetController: UIViewController {
         }
 
         let fetchLimit = 50
-        options.fetchLimit = fetchLimit
+        if #available(iOS 9, *) {
+            options.fetchLimit = fetchLimit
+        }
 
         let result = PHAsset.fetchAssetsWithOptions(options)
         let requestOptions = PHImageRequestOptions()
@@ -355,8 +361,16 @@ public class ImagePickerSheetController: UIViewController {
         reloadCurrentPreviewHeight(invalidateLayout: false)
 
         view.setNeedsLayout()
-        
-        UIView.animateWithDuration(0.2, animations: {
+		
+		let animationDuration: NSTimeInterval
+		if #available(iOS 9, *) {
+			animationDuration = 0.2
+		}
+		else {
+			animationDuration = 0.3
+		}
+		
+        UIView.animateWithDuration(animationDuration, animations: {
             self.view.layoutIfNeeded()
             self.sheetCollectionView.collectionViewLayout.invalidateLayout()
         }, completion: completion)

ImagePickerSheetController/ImagePickerSheetController/Sheet/SheetController.swift

@@ -77,7 +77,14 @@ class SheetController: NSObject {
                 return previewHeight
             }
 
-            let actionItemHeight: CGFloat = 57
+            let actionItemHeight: CGFloat
+            
+            if #available(iOS 9, *) {
+                actionItemHeight = 57
+            }
+            else {
+                actionItemHeight = 50
+            }
 
             let insets = attributesForItemAtIndexPath(indexPath).backgroundInsets
             return actionItemHeight + insets.top + insets.bottom
@@ -89,6 +96,10 @@ class SheetController: NSObject {
     // MARK: - Design
 
     private func attributesForItemAtIndexPath(indexPath: NSIndexPath) -> (corners: RoundedCorner, backgroundInsets: UIEdgeInsets) {
+		guard #available(iOS 9, *) else {
+			return (.None, UIEdgeInsets())
+		}
+		
         let cornerRadius: CGFloat = 13
         let innerInset: CGFloat = 4
         var indexPaths = allIndexPaths()
@@ -120,10 +131,11 @@ class SheetController: NSObject {
     }
 
     private func fontForAction(action: ImagePickerAction) -> UIFont {
-        if action.style == .Cancel {
-            return UIFont.boldSystemFontOfSize(21)
+        guard #available(iOS 9, *), action.style == .Cancel else {
+            return UIFont.systemFontOfSize(21)
         }
-        return UIFont.systemFontOfSize(21)
+        
+        return UIFont.boldSystemFontOfSize(21)
     }
 
     // MARK: - Actions
@@ -212,9 +224,16 @@ extension SheetController: UICollectionViewDataSource {
 
         // iOS specific design
         (cell.roundedCorners, cell.backgroundInsets) = attributesForItemAtIndexPath(indexPath)
-        cell.normalBackgroundColor = UIColor(white: 0.97, alpha: 1)
-        cell.highlightedBackgroundColor = UIColor(white: 0.92, alpha: 1)
-        cell.separatorColor = UIColor(white: 0.84, alpha: 1)
+        if #available(iOS 9, *) {
+            cell.normalBackgroundColor = UIColor(white: 0.97, alpha: 1)
+            cell.highlightedBackgroundColor = UIColor(white: 0.92, alpha: 1)
+            cell.separatorColor = UIColor(white: 0.84, alpha: 1)
+        }
+        else {
+            cell.normalBackgroundColor = .whiteColor()
+            cell.highlightedBackgroundColor = UIColor(white: 0.85, alpha: 1)
+            cell.separatorColor = UIColor(white: 0.784, alpha: 1)
+        }
 
         return cell
     }