├── ButtonColorGradientAnimation.xcodeproj
    ├── project.pbxproj
    ├── project.xcworkspace
    │   ├── contents.xcworkspacedata
    │   ├── xcshareddata
    │   │   └── IDEWorkspaceChecks.plist
    │   └── xcuserdata
    │   │   └── ls.xcuserdatad
    │   │       └── UserInterfaceState.xcuserstate
    └── xcuserdata
    │   └── ls.xcuserdatad
    │       └── xcschemes
    │           └── xcschememanagement.plist
├── ButtonColorGradientAnimation
    ├── AppDelegate.swift
    ├── Assets.xcassets
    │   ├── AppIcon.appiconset
    │   │   └── Contents.json
    │   └── Contents.json
    ├── Base.lproj
    │   ├── LaunchScreen.storyboard
    │   └── Main.storyboard
    ├── Info.plist
    └── ViewController.swift
├── ButtonColorGradientAnimationTests
    ├── ButtonColorGradientAnimationTests.swift
    └── Info.plist
├── ButtonColorGradientAnimationUITests
    ├── ButtonColorGradientAnimationUITests.swift
    └── Info.plist
├── README.md
└── pre.gif


/ButtonColorGradientAnimation.xcodeproj/project.pbxproj:
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393 | 				CLANG_WARN_EMPTY_BODY = YES;
394 | 				CLANG_WARN_ENUM_CONVERSION = YES;
395 | 				CLANG_WARN_INFINITE_RECURSION = YES;
396 | 				CLANG_WARN_INT_CONVERSION = YES;
397 | 				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
398 | 				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
399 | 				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
400 | 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
401 | 				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
402 | 				CLANG_WARN_STRICT_PROTOTYPES = YES;
403 | 				CLANG_WARN_SUSPICIOUS_MOVE = YES;
404 | 				CLANG_WARN_UNGUARDED_AVAILABILITY = YES_AGGRESSIVE;
405 | 				CLANG_WARN_UNREACHABLE_CODE = YES;
406 | 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
407 | 				CODE_SIGN_IDENTITY = "iPhone Developer";
408 | 				COPY_PHASE_STRIP = NO;
409 | 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
410 | 				ENABLE_NS_ASSERTIONS = NO;
411 | 				ENABLE_STRICT_OBJC_MSGSEND = YES;
412 | 				GCC_C_LANGUAGE_STANDARD = gnu11;
413 | 				GCC_NO_COMMON_BLOCKS = YES;
414 | 				GCC_WARN_64_TO_32_BIT_CONVERSION = YES;
415 | 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
416 | 				GCC_WARN_UNDECLARED_SELECTOR = YES;
417 | 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
418 | 				GCC_WARN_UNUSED_FUNCTION = YES;
419 | 				GCC_WARN_UNUSED_VARIABLE = YES;
420 | 				IPHONEOS_DEPLOYMENT_TARGET = 11.3;
421 | 				MTL_ENABLE_DEBUG_INFO = NO;
422 | 				SDKROOT = iphoneos;
423 | 				SWIFT_COMPILATION_MODE = wholemodule;
424 | 				SWIFT_OPTIMIZATION_LEVEL = "-O";
425 | 				VALIDATE_PRODUCT = YES;
426 | 			};
427 | 			name = Release;
428 | 		};
429 | 		49AB0DC32084C8CA00F4FD0D /* Debug */ = {
430 | 			isa = XCBuildConfiguration;
431 | 			buildSettings = {
432 | 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
433 | 				CODE_SIGN_STYLE = Automatic;
434 | 				DEVELOPMENT_TEAM = LM6MM3RLWX;
435 | 				INFOPLIST_FILE = ButtonColorGradientAnimation/Info.plist;
436 | 				LD_RUNPATH_SEARCH_PATHS = (
437 | 					"$(inherited)",
438 | 					"@executable_path/Frameworks",
439 | 				);
440 | 				PRODUCT_BUNDLE_IDENTIFIER = com.ButtonColorGradientAnimation;
441 | 				PRODUCT_NAME = "$(TARGET_NAME)";
442 | 				SWIFT_VERSION = 4.0;
443 | 				TARGETED_DEVICE_FAMILY = "1,2";
444 | 			};
445 | 			name = Debug;
446 | 		};
447 | 		49AB0DC42084C8CA00F4FD0D /* Release */ = {
448 | 			isa = XCBuildConfiguration;
449 | 			buildSettings = {
450 | 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
451 | 				CODE_SIGN_STYLE = Automatic;
452 | 				DEVELOPMENT_TEAM = LM6MM3RLWX;
453 | 				INFOPLIST_FILE = ButtonColorGradientAnimation/Info.plist;
454 | 				LD_RUNPATH_SEARCH_PATHS = (
455 | 					"$(inherited)",
456 | 					"@executable_path/Frameworks",
457 | 				);
458 | 				PRODUCT_BUNDLE_IDENTIFIER = com.ButtonColorGradientAnimation;
459 | 				PRODUCT_NAME = "$(TARGET_NAME)";
460 | 				SWIFT_VERSION = 4.0;
461 | 				TARGETED_DEVICE_FAMILY = "1,2";
462 | 			};
463 | 			name = Release;
464 | 		};
465 | 		49AB0DC62084C8CA00F4FD0D /* Debug */ = {
466 | 			isa = XCBuildConfiguration;
467 | 			buildSettings = {
468 | 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
469 | 				BUNDLE_LOADER = "$(TEST_HOST)";
470 | 				CODE_SIGN_STYLE = Automatic;
471 | 				DEVELOPMENT_TEAM = LM6MM3RLWX;
472 | 				INFOPLIST_FILE = ButtonColorGradientAnimationTests/Info.plist;
473 | 				LD_RUNPATH_SEARCH_PATHS = (
474 | 					"$(inherited)",
475 | 					"@executable_path/Frameworks",
476 | 					"@loader_path/Frameworks",
477 | 				);
478 | 				PRODUCT_BUNDLE_IDENTIFIER = com.ButtonColorGradientAnimationTests;
479 | 				PRODUCT_NAME = "$(TARGET_NAME)";
480 | 				SWIFT_VERSION = 4.0;
481 | 				TARGETED_DEVICE_FAMILY = "1,2";
482 | 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/ButtonColorGradientAnimation.app/ButtonColorGradientAnimation";
483 | 			};
484 | 			name = Debug;
485 | 		};
486 | 		49AB0DC72084C8CA00F4FD0D /* Release */ = {
487 | 			isa = XCBuildConfiguration;
488 | 			buildSettings = {
489 | 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
490 | 				BUNDLE_LOADER = "$(TEST_HOST)";
491 | 				CODE_SIGN_STYLE = Automatic;
492 | 				DEVELOPMENT_TEAM = LM6MM3RLWX;
493 | 				INFOPLIST_FILE = ButtonColorGradientAnimationTests/Info.plist;
494 | 				LD_RUNPATH_SEARCH_PATHS = (
495 | 					"$(inherited)",
496 | 					"@executable_path/Frameworks",
497 | 					"@loader_path/Frameworks",
498 | 				);
499 | 				PRODUCT_BUNDLE_IDENTIFIER = com.ButtonColorGradientAnimationTests;
500 | 				PRODUCT_NAME = "$(TARGET_NAME)";
501 | 				SWIFT_VERSION = 4.0;
502 | 				TARGETED_DEVICE_FAMILY = "1,2";
503 | 				TEST_HOST = "$(BUILT_PRODUCTS_DIR)/ButtonColorGradientAnimation.app/ButtonColorGradientAnimation";
504 | 			};
505 | 			name = Release;
506 | 		};
507 | 		49AB0DC92084C8CA00F4FD0D /* Debug */ = {
508 | 			isa = XCBuildConfiguration;
509 | 			buildSettings = {
510 | 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
511 | 				CODE_SIGN_STYLE = Automatic;
512 | 				DEVELOPMENT_TEAM = LM6MM3RLWX;
513 | 				INFOPLIST_FILE = ButtonColorGradientAnimationUITests/Info.plist;
514 | 				LD_RUNPATH_SEARCH_PATHS = (
515 | 					"$(inherited)",
516 | 					"@executable_path/Frameworks",
517 | 					"@loader_path/Frameworks",
518 | 				);
519 | 				PRODUCT_BUNDLE_IDENTIFIER = com.ButtonColorGradientAnimationUITests;
520 | 				PRODUCT_NAME = "$(TARGET_NAME)";
521 | 				SWIFT_VERSION = 4.0;
522 | 				TARGETED_DEVICE_FAMILY = "1,2";
523 | 				TEST_TARGET_NAME = ButtonColorGradientAnimation;
524 | 			};
525 | 			name = Debug;
526 | 		};
527 | 		49AB0DCA2084C8CA00F4FD0D /* Release */ = {
528 | 			isa = XCBuildConfiguration;
529 | 			buildSettings = {
530 | 				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
531 | 				CODE_SIGN_STYLE = Automatic;
532 | 				DEVELOPMENT_TEAM = LM6MM3RLWX;
533 | 				INFOPLIST_FILE = ButtonColorGradientAnimationUITests/Info.plist;
534 | 				LD_RUNPATH_SEARCH_PATHS = (
535 | 					"$(inherited)",
536 | 					"@executable_path/Frameworks",
537 | 					"@loader_path/Frameworks",
538 | 				);
539 | 				PRODUCT_BUNDLE_IDENTIFIER = com.ButtonColorGradientAnimationUITests;
540 | 				PRODUCT_NAME = "$(TARGET_NAME)";
541 | 				SWIFT_VERSION = 4.0;
542 | 				TARGETED_DEVICE_FAMILY = "1,2";
543 | 				TEST_TARGET_NAME = ButtonColorGradientAnimation;
544 | 			};
545 | 			name = Release;
546 | 		};
547 | /* End XCBuildConfiguration section */
548 | 
549 | /* Begin XCConfigurationList section */
550 | 		49AB0D952084C8C700F4FD0D /* Build configuration list for PBXProject "ButtonColorGradientAnimation" */ = {
551 | 			isa = XCConfigurationList;
552 | 			buildConfigurations = (
553 | 				49AB0DC02084C8CA00F4FD0D /* Debug */,
554 | 				49AB0DC12084C8CA00F4FD0D /* Release */,
555 | 			);
556 | 			defaultConfigurationIsVisible = 0;
557 | 			defaultConfigurationName = Release;
558 | 		};
559 | 		49AB0DC22084C8CA00F4FD0D /* Build configuration list for PBXNativeTarget "ButtonColorGradientAnimation" */ = {
560 | 			isa = XCConfigurationList;
561 | 			buildConfigurations = (
562 | 				49AB0DC32084C8CA00F4FD0D /* Debug */,
563 | 				49AB0DC42084C8CA00F4FD0D /* Release */,
564 | 			);
565 | 			defaultConfigurationIsVisible = 0;
566 | 			defaultConfigurationName = Release;
567 | 		};
568 | 		49AB0DC52084C8CA00F4FD0D /* Build configuration list for PBXNativeTarget "ButtonColorGradientAnimationTests" */ = {
569 | 			isa = XCConfigurationList;
570 | 			buildConfigurations = (
571 | 				49AB0DC62084C8CA00F4FD0D /* Debug */,
572 | 				49AB0DC72084C8CA00F4FD0D /* Release */,
573 | 			);
574 | 			defaultConfigurationIsVisible = 0;
575 | 			defaultConfigurationName = Release;
576 | 		};
577 | 		49AB0DC82084C8CA00F4FD0D /* Build configuration list for PBXNativeTarget "ButtonColorGradientAnimationUITests" */ = {
578 | 			isa = XCConfigurationList;
579 | 			buildConfigurations = (
580 | 				49AB0DC92084C8CA00F4FD0D /* Debug */,
581 | 				49AB0DCA2084C8CA00F4FD0D /* Release */,
582 | 			);
583 | 			defaultConfigurationIsVisible = 0;
584 | 			defaultConfigurationName = Release;
585 | 		};
586 | /* End XCConfigurationList section */
587 | 	};
588 | 	rootObject = 49AB0D922084C8C700F4FD0D /* Project object */;
589 | }
590 | 


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/ButtonColorGradientAnimation.xcodeproj/project.xcworkspace/contents.xcworkspacedata:
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1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <Workspace
3 |    version = "1.0">
4 |    <FileRef
5 |       location = "self:ButtonColorGradientAnimation.xcodeproj">
6 |    </FileRef>
7 | </Workspace>
8 | 


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/ButtonColorGradientAnimation.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist:
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1 | <?xml version="1.0" encoding="UTF-8"?>
2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
3 | <plist version="1.0">
4 | <dict>
5 | 	<key>IDEDidComputeMac32BitWarning</key>
6 | 	<true/>
7 | </dict>
8 | </plist>
9 | 


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/ButtonColorGradientAnimation.xcodeproj/xcuserdata/ls.xcuserdatad/xcschemes/xcschememanagement.plist:
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 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>SchemeUserState</key>
 6 | 	<dict>
 7 | 		<key>ButtonColorGradientAnimation.xcscheme</key>
 8 | 		<dict>
 9 | 			<key>orderHint</key>
10 | 			<integer>0</integer>
11 | 		</dict>
12 | 	</dict>
13 | </dict>
14 | </plist>
15 | 


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/ButtonColorGradientAnimation/AppDelegate.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.swift
 3 | //  ButtonColorGradientAnimation
 4 | //
 5 | //  Created by ls on 2018/4/16.
 6 | //  Copyright © 2018年 ls. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | @UIApplicationMain
12 | class AppDelegate: UIResponder, UIApplicationDelegate {
13 | 
14 |     var window: UIWindow?
15 | 
16 | 
17 |     func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
18 |         // Override point for customization after application launch.
19 |         return true
20 |     }
21 | 
22 |     func applicationWillResignActive(_ application: UIApplication) {
23 |         // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
24 |         // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game.
25 |     }
26 | 
27 |     func applicationDidEnterBackground(_ application: UIApplication) {
28 |         // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
29 |         // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
30 |     }
31 | 
32 |     func applicationWillEnterForeground(_ application: UIApplication) {
33 |         // Called as part of the transition from the background to the active state; here you can undo many of the changes made on entering the background.
34 |     }
35 | 
36 |     func applicationDidBecomeActive(_ application: UIApplication) {
37 |         // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
38 |     }
39 | 
40 |     func applicationWillTerminate(_ application: UIApplication) {
41 |         // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
42 |     }
43 | 
44 | 
45 | }
46 | 
47 | 


--------------------------------------------------------------------------------
/ButtonColorGradientAnimation/Assets.xcassets/AppIcon.appiconset/Contents.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "images" : [
 3 |     {
 4 |       "idiom" : "iphone",
 5 |       "size" : "20x20",
 6 |       "scale" : "2x"
 7 |     },
 8 |     {
 9 |       "idiom" : "iphone",
10 |       "size" : "20x20",
11 |       "scale" : "3x"
12 |     },
13 |     {
14 |       "idiom" : "iphone",
15 |       "size" : "29x29",
16 |       "scale" : "2x"
17 |     },
18 |     {
19 |       "idiom" : "iphone",
20 |       "size" : "29x29",
21 |       "scale" : "3x"
22 |     },
23 |     {
24 |       "idiom" : "iphone",
25 |       "size" : "40x40",
26 |       "scale" : "2x"
27 |     },
28 |     {
29 |       "idiom" : "iphone",
30 |       "size" : "40x40",
31 |       "scale" : "3x"
32 |     },
33 |     {
34 |       "idiom" : "iphone",
35 |       "size" : "60x60",
36 |       "scale" : "2x"
37 |     },
38 |     {
39 |       "idiom" : "iphone",
40 |       "size" : "60x60",
41 |       "scale" : "3x"
42 |     },
43 |     {
44 |       "idiom" : "ipad",
45 |       "size" : "20x20",
46 |       "scale" : "1x"
47 |     },
48 |     {
49 |       "idiom" : "ipad",
50 |       "size" : "20x20",
51 |       "scale" : "2x"
52 |     },
53 |     {
54 |       "idiom" : "ipad",
55 |       "size" : "29x29",
56 |       "scale" : "1x"
57 |     },
58 |     {
59 |       "idiom" : "ipad",
60 |       "size" : "29x29",
61 |       "scale" : "2x"
62 |     },
63 |     {
64 |       "idiom" : "ipad",
65 |       "size" : "40x40",
66 |       "scale" : "1x"
67 |     },
68 |     {
69 |       "idiom" : "ipad",
70 |       "size" : "40x40",
71 |       "scale" : "2x"
72 |     },
73 |     {
74 |       "idiom" : "ipad",
75 |       "size" : "76x76",
76 |       "scale" : "1x"
77 |     },
78 |     {
79 |       "idiom" : "ipad",
80 |       "size" : "76x76",
81 |       "scale" : "2x"
82 |     },
83 |     {
84 |       "idiom" : "ipad",
85 |       "size" : "83.5x83.5",
86 |       "scale" : "2x"
87 |     },
88 |     {
89 |       "idiom" : "ios-marketing",
90 |       "size" : "1024x1024",
91 |       "scale" : "1x"
92 |     }
93 |   ],
94 |   "info" : {
95 |     "version" : 1,
96 |     "author" : "xcode"
97 |   }
98 | }


--------------------------------------------------------------------------------
/ButtonColorGradientAnimation/Assets.xcassets/Contents.json:
--------------------------------------------------------------------------------
1 | {
2 |   "info" : {
3 |     "version" : 1,
4 |     "author" : "xcode"
5 |   }
6 | }


--------------------------------------------------------------------------------
/ButtonColorGradientAnimation/Base.lproj/LaunchScreen.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8" standalone="no"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
 3 |     <dependencies>
 4 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
 5 |         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
 6 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
 7 |     </dependencies>
 8 |     <scenes>
 9 |         <!--View Controller-->
10 |         <scene sceneID="EHf-IW-A2E">
11 |             <objects>
12 |                 <viewController id="01J-lp-oVM" sceneMemberID="viewController">
13 |                     <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
14 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
15 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
16 |                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
17 |                         <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
18 |                     </view>
19 |                 </viewController>
20 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
21 |             </objects>
22 |             <point key="canvasLocation" x="53" y="375"/>
23 |         </scene>
24 |     </scenes>
25 | </document>
26 | 


--------------------------------------------------------------------------------
/ButtonColorGradientAnimation/Base.lproj/Main.storyboard:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14109" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
 3 |     <device id="retina4_7" orientation="portrait">
 4 |         <adaptation id="fullscreen"/>
 5 |     </device>
 6 |     <dependencies>
 7 |         <deployment identifier="iOS"/>
 8 |         <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14088"/>
 9 |         <capability name="Safe area layout guides" minToolsVersion="9.0"/>
10 |         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
11 |     </dependencies>
12 |     <scenes>
13 |         <!--View Controller-->
14 |         <scene sceneID="tne-QT-ifu">
15 |             <objects>
16 |                 <viewController id="BYZ-38-t0r" customClass="ViewController" customModule="ButtonColorGradientAnimation" customModuleProvider="target" sceneMemberID="viewController">
17 |                     <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
18 |                         <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
19 |                         <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
20 |                         <subviews>
21 |                             <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="cfC-Rv-boO">
22 |                                 <rect key="frame" x="87.5" y="308.5" width="200" height="50"/>
23 |                                 <color key="backgroundColor" red="0.70196078429999997" green="0.70196078429999997" blue="0.70196078429999997" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
24 |                                 <constraints>
25 |                                     <constraint firstAttribute="height" constant="50" id="CbG-DA-gA4"/>
26 |                                     <constraint firstAttribute="width" constant="200" id="RVz-0G-Gcu"/>
27 |                                 </constraints>
28 |                                 <state key="normal" title="Button"/>
29 |                             </button>
30 |                         </subviews>
31 |                         <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
32 |                         <constraints>
33 |                             <constraint firstItem="cfC-Rv-boO" firstAttribute="centerX" secondItem="8bC-Xf-vdC" secondAttribute="centerX" id="JKR-cl-VIq"/>
34 |                             <constraint firstItem="cfC-Rv-boO" firstAttribute="centerY" secondItem="8bC-Xf-vdC" secondAttribute="centerY" id="q82-Ok-Qwb"/>
35 |                         </constraints>
36 |                         <viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
37 |                     </view>
38 |                     <connections>
39 |                         <outlet property="colorButton" destination="cfC-Rv-boO" id="A8v-DT-e5d"/>
40 |                     </connections>
41 |                 </viewController>
42 |                 <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
43 |             </objects>
44 |         </scene>
45 |     </scenes>
46 | </document>
47 | 


--------------------------------------------------------------------------------
/ButtonColorGradientAnimation/Info.plist:
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 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>CFBundleDevelopmentRegion</key>
 6 | 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>$(PRODUCT_NAME)</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>APPL</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleVersion</key>
20 | 	<string>1</string>
21 | 	<key>LSRequiresIPhoneOS</key>
22 | 	<true/>
23 | 	<key>UILaunchStoryboardName</key>
24 | 	<string>LaunchScreen</string>
25 | 	<key>UIMainStoryboardFile</key>
26 | 	<string>Main</string>
27 | 	<key>UIRequiredDeviceCapabilities</key>
28 | 	<array>
29 | 		<string>armv7</string>
30 | 	</array>
31 | 	<key>UISupportedInterfaceOrientations</key>
32 | 	<array>
33 | 		<string>UIInterfaceOrientationPortrait</string>
34 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
35 | 		<string>UIInterfaceOrientationLandscapeRight</string>
36 | 	</array>
37 | 	<key>UISupportedInterfaceOrientations~ipad</key>
38 | 	<array>
39 | 		<string>UIInterfaceOrientationPortrait</string>
40 | 		<string>UIInterfaceOrientationPortraitUpsideDown</string>
41 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
42 | 		<string>UIInterfaceOrientationLandscapeRight</string>
43 | 	</array>
44 | </dict>
45 | </plist>
46 | 


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/ButtonColorGradientAnimation/ViewController.swift:
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 1 | //
 2 | //  ViewController.swift
 3 | //  ButtonColorGradientAnimation
 4 | //
 5 | //  Created by ls on 2018/4/16.
 6 | //  Copyright © 2018年 ls. All rights reserved.
 7 | //
 8 | 
 9 | import UIKit
10 | 
11 | class ViewController: UIViewController {
12 | 
13 |     @IBOutlet weak var colorButton: UIButton!
14 |     var progress: CGFloat = 0.0 //用于控制显示动画次数哦
15 |     var caGradientLayer: CAGradientLayer? //渐变色实现
16 |     var startColors:[Any]?  //动画处使用，动画开始颜色组
17 |     var endColors:[Any]? //动画处使用，动画结束颜色组
18 |     let colors = [
19 |         UIColor.init(red: 162/255, green: 94/255, blue: 255/255, alpha: 1).cgColor,
20 |         UIColor.init(red: 108/255, green: 153/255, blue: 255/255, alpha: 1).cgColor,
21 |         UIColor.init(red: 105/255, green: 201/255, blue: 255/255, alpha: 1).cgColor,
22 |         UIColor.init(red: 102/255, green: 235/255, blue: 221/255, alpha: 1).cgColor,
23 |         UIColor.init(red: 103/255, green: 249/255, blue: 145/255, alpha: 1).cgColor,
24 |         UIColor.init(red: 228/255, green: 250/255, blue: 139/255, alpha: 1).cgColor,
25 |         UIColor.init(red: 255/255, green: 198/255, blue: 88/255, alpha: 1).cgColor,
26 |         UIColor.init(red: 255/255, green: 120/255, blue: 102/255, alpha: 1).cgColor,
27 |         UIColor.init(red: 162/255, green: 94/255, blue: 255/255, alpha: 1).cgColor
28 |     ]
29 |     override func viewDidLoad() {
30 |         super.viewDidLoad()
31 |         colorButton.layer.cornerRadius = 10
32 |         initGradientLayerView()
33 |     }
34 | }
35 | //MARK: - CAAnimationDelegate
36 | extension ViewController: CAAnimationDelegate {
37 |     func animationDidStop(_ anim: CAAnimation, finished flag: Bool) {
38 |         
39 |         caGradientLayer?.colors = endColors
40 |         gradientAnimation()
41 |         progress += 1.0
42 |         if Int(progress + 2) >= colors.count {
43 |             progress = 0
44 |         }
45 |     }
46 | }
47 | //MARK: - UI
48 | extension ViewController {
49 |     ///初始化CAGradientLayer
50 |     func initGradientLayerView() {
51 |         caGradientLayer = CAGradientLayer()
52 |         caGradientLayer?.frame = CGRect(x: 0, y: 0, width: 200, height: 50)
53 |         caGradientLayer?.cornerRadius = 10
54 |         caGradientLayer?.startPoint = CGPoint(x: 0, y: 0)
55 |         caGradientLayer?.endPoint = CGPoint(x: 1, y: 0)
56 |         let colors2 = [
57 |             colors[0],
58 |             colors[1]
59 |         ]
60 |         caGradientLayer?.colors = colors2
61 |         startColors = colors2
62 |         //Button上添加Layer
63 |         colorButton.layer.addSublayer(caGradientLayer!)
64 |         //开始动画
65 |         self.gradientAnimation()
66 |     }
67 | }
68 | //MARK: - 动画
69 | extension ViewController {
70 |     ///Layer动画
71 |     @objc func gradientAnimation() {
72 |         var colorArray = caGradientLayer?.colors
73 |         
74 |         if endColors != nil {
75 |             startColors = endColors
76 |         }
77 |         colorArray?.removeFirst()
78 |         colorArray?.append(colors[Int(progress) + 2])
79 |         endColors = colorArray
80 |         let animation = CABasicAnimation(keyPath: "colors")
81 |         animation.fromValue = startColors
82 |         animation.toValue = endColors
83 |         animation.duration = 1
84 |         animation.fillMode = kCAFillModeForwards
85 |         animation.isRemovedOnCompletion = false
86 |         animation.delegate = self
87 |         caGradientLayer?.add(animation, forKey: "animateGradient")
88 |     }
89 | }
90 | 


--------------------------------------------------------------------------------
/ButtonColorGradientAnimationTests/ButtonColorGradientAnimationTests.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ButtonColorGradientAnimationTests.swift
 3 | //  ButtonColorGradientAnimationTests
 4 | //
 5 | //  Created by ls on 2018/4/16.
 6 | //  Copyright © 2018年 ls. All rights reserved.
 7 | //
 8 | 
 9 | import XCTest
10 | @testable import ButtonColorGradientAnimation
11 | 
12 | class ButtonColorGradientAnimationTests: XCTestCase {
13 |     
14 |     override func setUp() {
15 |         super.setUp()
16 |         // Put setup code here. This method is called before the invocation of each test method in the class.
17 |     }
18 |     
19 |     override func tearDown() {
20 |         // Put teardown code here. This method is called after the invocation of each test method in the class.
21 |         super.tearDown()
22 |     }
23 |     
24 |     func testExample() {
25 |         // This is an example of a functional test case.
26 |         // Use XCTAssert and related functions to verify your tests produce the correct results.
27 |     }
28 |     
29 |     func testPerformanceExample() {
30 |         // This is an example of a performance test case.
31 |         self.measure {
32 |             // Put the code you want to measure the time of here.
33 |         }
34 |     }
35 |     
36 | }
37 | 


--------------------------------------------------------------------------------
/ButtonColorGradientAnimationTests/Info.plist:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>CFBundleDevelopmentRegion</key>
 6 | 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>$(PRODUCT_NAME)</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>BNDL</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleVersion</key>
20 | 	<string>1</string>
21 | </dict>
22 | </plist>
23 | 


--------------------------------------------------------------------------------
/ButtonColorGradientAnimationUITests/ButtonColorGradientAnimationUITests.swift:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ButtonColorGradientAnimationUITests.swift
 3 | //  ButtonColorGradientAnimationUITests
 4 | //
 5 | //  Created by ls on 2018/4/16.
 6 | //  Copyright © 2018年 ls. All rights reserved.
 7 | //
 8 | 
 9 | import XCTest
10 | 
11 | class ButtonColorGradientAnimationUITests: XCTestCase {
12 |         
13 |     override func setUp() {
14 |         super.setUp()
15 |         
16 |         // Put setup code here. This method is called before the invocation of each test method in the class.
17 |         
18 |         // In UI tests it is usually best to stop immediately when a failure occurs.
19 |         continueAfterFailure = false
20 |         // UI tests must launch the application that they test. Doing this in setup will make sure it happens for each test method.
21 |         XCUIApplication().launch()
22 | 
23 |         // In UI tests it’s important to set the initial state - such as interface orientation - required for your tests before they run. The setUp method is a good place to do this.
24 |     }
25 |     
26 |     override func tearDown() {
27 |         // Put teardown code here. This method is called after the invocation of each test method in the class.
28 |         super.tearDown()
29 |     }
30 |     
31 |     func testExample() {
32 |         // Use recording to get started writing UI tests.
33 |         // Use XCTAssert and related functions to verify your tests produce the correct results.
34 |     }
35 |     
36 | }
37 | 


--------------------------------------------------------------------------------
/ButtonColorGradientAnimationUITests/Info.plist:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="UTF-8"?>
 2 | <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>CFBundleDevelopmentRegion</key>
 6 | 	<string>$(DEVELOPMENT_LANGUAGE)</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>$(EXECUTABLE_NAME)</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>$(PRODUCT_NAME)</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>BNDL</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleVersion</key>
20 | 	<string>1</string>
21 | </dict>
22 | </plist>
23 | 


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/README.md:
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1 | # ButtonColorGradientAnimation
2 | 按钮的背景色动画渐变
3 | 效果图如下
4 | 
5 | ![image](https://github.com/LSnumber1/ButtonColorGradientAnimation/blob/master/pre.gif)   
6 | 


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/pre.gif:
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https://raw.githubusercontent.com/LSnumber1/ButtonColorGradientAnimation/bb5074def38bea3e52ac4fab8cf92ba439c13230/pre.gif


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