Set deployment target to iOS 9.0

JellyGif.podspec

@@ -12,8 +12,8 @@ Pod::Spec.new do |s|
 
   s.author             = { 'Linh Ta' => 'linhtadev@gmail.com' }
   s.social_media_url   = 'https://linhta.dev'
-  s.platform  = :ios, '10.0'
-  s.ios.deployment_target = '10.0'
-  s.swift_version = '5.0'
+  s.platform  = :ios, '9.0'
+  s.ios.deployment_target = '9.0'
+  s.swift_version = '4.2'
   s.ios.framework  = 'UIKit'
 end

JellyGif.xcodeproj/project.pbxproj

@@ -324,12 +324,13 @@
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_STYLE = Automatic;
 				DEFINES_MODULE = YES;
-				DEVELOPMENT_TEAM = BMXC39C5SJ;
+				DEVELOPMENT_TEAM = 8JMM4RM96A;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = JellyGif/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
+				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -338,6 +339,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = linhta.JellyGif;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SKIP_INSTALL = YES;
+				SUPPORTS_MACCATALYST = YES;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
@@ -350,12 +352,13 @@
 				CLANG_ENABLE_MODULES = YES;
 				CODE_SIGN_STYLE = Automatic;
 				DEFINES_MODULE = YES;
-				DEVELOPMENT_TEAM = BMXC39C5SJ;
+				DEVELOPMENT_TEAM = 8JMM4RM96A;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
 				DYLIB_INSTALL_NAME_BASE = "@rpath";
 				INFOPLIST_FILE = JellyGif/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
+				IPHONEOS_DEPLOYMENT_TARGET = 9.0;
 				LD_RUNPATH_SEARCH_PATHS = (
 					"$(inherited)",
 					"@executable_path/Frameworks",
@@ -364,6 +367,7 @@
 				PRODUCT_BUNDLE_IDENTIFIER = linhta.JellyGif;
 				PRODUCT_NAME = "$(TARGET_NAME:c99extidentifier)";
 				SKIP_INSTALL = YES;
+				SUPPORTS_MACCATALYST = YES;
 				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 			};

JellyGif.xcodeproj/xcuserdata/batyrcan.xcuserdatad/xcschemes/xcschememanagement.plist

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>SchemeUserState</key>
+	<dict>
+		<key>JellyGif.xcscheme_^#shared#^_</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
+	</dict>
+</dict>
+</plist>

JellyGif/Source/JellyGifAnimator.swift

@@ -42,7 +42,12 @@ public class JellyGifAnimator {
     public private(set) lazy var displayLink: CADisplayLink = {
         let displayLinkProxy = DisplayLinkProxy(animator: self)
         let displayLink = CADisplayLink(target: displayLinkProxy, selector: #selector(DisplayLinkProxy.animateGif(displayLink:)))
-        displayLink.preferredFramesPerSecond = preferredAnimationQuality.preferredFramesPerSecond
+        if #available(iOS 10.0, *) {
+            displayLink.preferredFramesPerSecond = preferredAnimationQuality.preferredFramesPerSecond
+        } else {
+            // Fallback on earlier versions
+            displayLink.frameInterval = preferredAnimationQuality.preferredFramesPerSecond
+        }
         displayLink.add(to: .main, forMode: .common)
         return displayLink
     }()

README.md

@@ -156,6 +156,6 @@ extension ViewController: JellyGifAnimatorDelegate {
 Measured on an iPhone Xs Max, iOS 13.3.1 and Xcode 11.3.1
 
 ## Compatibility
-- iOS 10.0+
+- iOS 9.0+
 - Swift 5.0
 - Xcode 10+