├── README.md
├── ScrollBlurView.xcodeproj
    ├── project.pbxproj
    ├── project.xcworkspace
    │   ├── contents.xcworkspacedata
    │   ├── xcshareddata
    │   │   └── ScrollBlurView.xccheckout
    │   └── xcuserdata
    │   │   └── Jason.xcuserdatad
    │   │       └── UserInterfaceState.xcuserstate
    └── xcuserdata
    │   └── Jason.xcuserdatad
    │       ├── xcdebugger
    │           └── Breakpoints_v2.xcbkptlist
    │       └── xcschemes
    │           ├── ScrollBlurView.xcscheme
    │           └── xcschememanagement.plist
├── ScrollBlurView
    ├── AppDelegate.h
    ├── AppDelegate.m
    ├── Images.xcassets
    │   ├── AppIcon.appiconset
    │   │   └── Contents.json
    │   └── LaunchImage.launchimage
    │   │   └── Contents.json
    ├── ScrollBlurView-Info.plist
    ├── ScrollBlurView-Prefix.pch
    ├── ScrollBlurView.h
    ├── ScrollBlurView.m
    ├── UIColor+Extension.h
    ├── UIColor+Extension.m
    ├── ViewController.h
    ├── ViewController.m
    ├── anchor.png
    ├── en.lproj
    │   └── InfoPlist.strings
    └── main.m
├── ScrollBlurViewTests
    ├── ScrollBlurViewTests-Info.plist
    ├── ScrollBlurViewTests.m
    └── en.lproj
    │   └── InfoPlist.strings
├── demo.gif
├── effect1.png
├── effect2.png
└── effect3.png


/README.md:
--------------------------------------------------------------------------------
 1 | introduction
 2 | =======================
 3 | `ScrollBlurView` is a subclass of `UIView`.when scrolling,it can make part of the view behind it blurred.
 4 |   
 5 |   
 6 | 
 7 | Effects
 8 | =======================
 9 | ####GIF Image
10 | <img src="https://raw.githubusercontent.com/JasonZengJ/ScrollBlurView/master/demo.gif" alt="ScrollBlurView demo" height=500  title="ScrollBlurView demo" style="display:block;">
11 | 
12 | 
13 | ####HD PNG Images
14 | <img src="https://raw.githubusercontent.com/JasonZengJ/ScrollBlurView/master/effect1.png" alt="ScrollBlurView demo" height=500  title="ScrollBlurView demo" style="display:block;">
15 | <br/>
16 | <img src="https://raw.githubusercontent.com/JasonZengJ/ScrollBlurView/master/effect2.png" alt="ScrollBlurView demo" height=500  title="ScrollBlurView demo" style="display:block;">
17 | 
18 | <img src="https://raw.githubusercontent.com/JasonZengJ/ScrollBlurView/master/effect3.png" alt="ScrollBlurView demo" height=500  title="ScrollBlurView demo" style="display:block;">
19 | 
20 | 


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334 | 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
335 | 				GCC_WARN_UNDECLARED_SELECTOR = YES;
336 | 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
337 | 				GCC_WARN_UNUSED_FUNCTION = YES;
338 | 				GCC_WARN_UNUSED_VARIABLE = YES;
339 | 				IPHONEOS_DEPLOYMENT_TARGET = 7.1;
340 | 				ONLY_ACTIVE_ARCH = YES;
341 | 				SDKROOT = iphoneos;
342 | 			};
343 | 			name = Debug;
344 | 		};
345 | 		963411AB1952820C00D09762 /* Release */ = {
346 | 			isa = XCBuildConfiguration;
347 | 			buildSettings = {
348 | 				ALWAYS_SEARCH_USER_PATHS = NO;
349 | 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
350 | 				CLANG_CXX_LIBRARY = "libc++";
351 | 				CLANG_ENABLE_MODULES = YES;
352 | 				CLANG_ENABLE_OBJC_ARC = YES;
353 | 				CLANG_WARN_BOOL_CONVERSION = YES;
354 | 				CLANG_WARN_CONSTANT_CONVERSION = YES;
355 | 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
356 | 				CLANG_WARN_EMPTY_BODY = YES;
357 | 				CLANG_WARN_ENUM_CONVERSION = YES;
358 | 				CLANG_WARN_INT_CONVERSION = YES;
359 | 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
360 | 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
361 | 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
362 | 				COPY_PHASE_STRIP = YES;
363 | 				ENABLE_NS_ASSERTIONS = NO;
364 | 				GCC_C_LANGUAGE_STANDARD = gnu99;
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366 | 				GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR;
367 | 				GCC_WARN_UNDECLARED_SELECTOR = YES;
368 | 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
369 | 				GCC_WARN_UNUSED_FUNCTION = YES;
370 | 				GCC_WARN_UNUSED_VARIABLE = YES;
371 | 				IPHONEOS_DEPLOYMENT_TARGET = 7.1;
372 | 				SDKROOT = iphoneos;
373 | 				VALIDATE_PRODUCT = YES;
374 | 			};
375 | 			name = Release;
376 | 		};
377 | 		963411AD1952820C00D09762 /* Debug */ = {
378 | 			isa = XCBuildConfiguration;
379 | 			buildSettings = {
380 | 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
381 | 				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
382 | 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
383 | 				GCC_PREFIX_HEADER = "ScrollBlurView/ScrollBlurView-Prefix.pch";
384 | 				INFOPLIST_FILE = "ScrollBlurView/ScrollBlurView-Info.plist";
385 | 				PRODUCT_NAME = "$(TARGET_NAME)";
386 | 				WRAPPER_EXTENSION = app;
387 | 			};
388 | 			name = Debug;
389 | 		};
390 | 		963411AE1952820C00D09762 /* Release */ = {
391 | 			isa = XCBuildConfiguration;
392 | 			buildSettings = {
393 | 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
394 | 				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
395 | 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
396 | 				GCC_PREFIX_HEADER = "ScrollBlurView/ScrollBlurView-Prefix.pch";
397 | 				INFOPLIST_FILE = "ScrollBlurView/ScrollBlurView-Info.plist";
398 | 				PRODUCT_NAME = "$(TARGET_NAME)";
399 | 				WRAPPER_EXTENSION = app;
400 | 			};
401 | 			name = Release;
402 | 		};
403 | 		963411B01952820C00D09762 /* Debug */ = {
404 | 			isa = XCBuildConfiguration;
405 | 			buildSettings = {
406 | 				BUNDLE_LOADER = "$(BUILT_PRODUCTS_DIR)/ScrollBlurView.app/ScrollBlurView";
407 | 				FRAMEWORK_SEARCH_PATHS = (
408 | 					"$(SDKROOT)/Developer/Library/Frameworks",
409 | 					"$(inherited)",
410 | 					"$(DEVELOPER_FRAMEWORKS_DIR)",
411 | 				);
412 | 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
413 | 				GCC_PREFIX_HEADER = "ScrollBlurView/ScrollBlurView-Prefix.pch";
414 | 				GCC_PREPROCESSOR_DEFINITIONS = (
415 | 					"DEBUG=1",
416 | 					"$(inherited)",
417 | 				);
418 | 				INFOPLIST_FILE = "ScrollBlurViewTests/ScrollBlurViewTests-Info.plist";
419 | 				PRODUCT_NAME = "$(TARGET_NAME)";
420 | 				TEST_HOST = "$(BUNDLE_LOADER)";
421 | 				WRAPPER_EXTENSION = xctest;
422 | 			};
423 | 			name = Debug;
424 | 		};
425 | 		963411B11952820C00D09762 /* Release */ = {
426 | 			isa = XCBuildConfiguration;
427 | 			buildSettings = {
428 | 				BUNDLE_LOADER = "$(BUILT_PRODUCTS_DIR)/ScrollBlurView.app/ScrollBlurView";
429 | 				FRAMEWORK_SEARCH_PATHS = (
430 | 					"$(SDKROOT)/Developer/Library/Frameworks",
431 | 					"$(inherited)",
432 | 					"$(DEVELOPER_FRAMEWORKS_DIR)",
433 | 				);
434 | 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
435 | 				GCC_PREFIX_HEADER = "ScrollBlurView/ScrollBlurView-Prefix.pch";
436 | 				INFOPLIST_FILE = "ScrollBlurViewTests/ScrollBlurViewTests-Info.plist";
437 | 				PRODUCT_NAME = "$(TARGET_NAME)";
438 | 				TEST_HOST = "$(BUNDLE_LOADER)";
439 | 				WRAPPER_EXTENSION = xctest;
440 | 			};
441 | 			name = Release;
442 | 		};
443 | /* End XCBuildConfiguration section */
444 | 
445 | /* Begin XCConfigurationList section */
446 | 		9634117B1952820C00D09762 /* Build configuration list for PBXProject "ScrollBlurView" */ = {
447 | 			isa = XCConfigurationList;
448 | 			buildConfigurations = (
449 | 				963411AA1952820C00D09762 /* Debug */,
450 | 				963411AB1952820C00D09762 /* Release */,
451 | 			);
452 | 			defaultConfigurationIsVisible = 0;
453 | 			defaultConfigurationName = Release;
454 | 		};
455 | 		963411AC1952820C00D09762 /* Build configuration list for PBXNativeTarget "ScrollBlurView" */ = {
456 | 			isa = XCConfigurationList;
457 | 			buildConfigurations = (
458 | 				963411AD1952820C00D09762 /* Debug */,
459 | 				963411AE1952820C00D09762 /* Release */,
460 | 			);
461 | 			defaultConfigurationIsVisible = 0;
462 | 		};
463 | 		963411AF1952820C00D09762 /* Build configuration list for PBXNativeTarget "ScrollBlurViewTests" */ = {
464 | 			isa = XCConfigurationList;
465 | 			buildConfigurations = (
466 | 				963411B01952820C00D09762 /* Debug */,
467 | 				963411B11952820C00D09762 /* Release */,
468 | 			);
469 | 			defaultConfigurationIsVisible = 0;
470 | 		};
471 | /* End XCConfigurationList section */
472 | 	};
473 | 	rootObject = 963411781952820C00D09762 /* Project object */;
474 | }
475 | 


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


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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>IDESourceControlProjectFavoriteDictionaryKey</key>
 6 | 	<false/>
 7 | 	<key>IDESourceControlProjectIdentifier</key>
 8 | 	<string>EB73E3D9-3720-4E0D-A5F5-07556CB144F8</string>
 9 | 	<key>IDESourceControlProjectName</key>
10 | 	<string>ScrollBlurView</string>
11 | 	<key>IDESourceControlProjectOriginsDictionary</key>
12 | 	<dict>
13 | 		<key>6FD786B6-FFF7-448E-A83D-6862AC672780</key>
14 | 		<string>https://github.com/JasonZengJ/ScrollBlurView.git</string>
15 | 	</dict>
16 | 	<key>IDESourceControlProjectPath</key>
17 | 	<string>ScrollBlurView.xcodeproj/project.xcworkspace</string>
18 | 	<key>IDESourceControlProjectRelativeInstallPathDictionary</key>
19 | 	<dict>
20 | 		<key>6FD786B6-FFF7-448E-A83D-6862AC672780</key>
21 | 		<string>../..</string>
22 | 	</dict>
23 | 	<key>IDESourceControlProjectURL</key>
24 | 	<string>https://github.com/JasonZengJ/ScrollBlurView.git</string>
25 | 	<key>IDESourceControlProjectVersion</key>
26 | 	<integer>110</integer>
27 | 	<key>IDESourceControlProjectWCCIdentifier</key>
28 | 	<string>6FD786B6-FFF7-448E-A83D-6862AC672780</string>
29 | 	<key>IDESourceControlProjectWCConfigurations</key>
30 | 	<array>
31 | 		<dict>
32 | 			<key>IDESourceControlRepositoryExtensionIdentifierKey</key>
33 | 			<string>public.vcs.git</string>
34 | 			<key>IDESourceControlWCCIdentifierKey</key>
35 | 			<string>6FD786B6-FFF7-448E-A83D-6862AC672780</string>
36 | 			<key>IDESourceControlWCCName</key>
37 | 			<string>ScrollBlurView</string>
38 | 		</dict>
39 | 	</array>
40 | </dict>
41 | </plist>
42 | 


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 4 |    version = "2.0">
 5 |    <Breakpoints>
 6 |       <BreakpointProxy
 7 |          BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
 8 |          <BreakpointContent
 9 |             shouldBeEnabled = "No"
10 |             ignoreCount = "0"
11 |             continueAfterRunningActions = "No"
12 |             filePath = "ScrollBlurView/ScrollBlurView.m"
13 |             timestampString = "425236259.785191"
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23 |          BreakpointExtensionID = "Xcode.Breakpoint.FileBreakpoint">
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 3 |    LastUpgradeVersion = "0510"
 4 |    version = "1.3">
 5 |    <BuildAction
 6 |       parallelizeBuildables = "YES"
 7 |       buildImplicitDependencies = "YES">
 8 |       <BuildActionEntries>
 9 |          <BuildActionEntry
10 |             buildForTesting = "YES"
11 |             buildForRunning = "YES"
12 |             buildForProfiling = "YES"
13 |             buildForArchiving = "YES"
14 |             buildForAnalyzing = "YES">
15 |             <BuildableReference
16 |                BuildableIdentifier = "primary"
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25 |    <TestAction
26 |       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
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29 |       buildConfiguration = "Debug">
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41 |       </Testables>
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51 |    </TestAction>
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59 |       debugDocumentVersioning = "YES"
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63 |             BuildableIdentifier = "primary"
64 |             BlueprintIdentifier = "9634117F1952820C00D09762"
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67 |             ReferencedContainer = "container:ScrollBlurView.xcodeproj">
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77 |       buildConfiguration = "Release"
78 |       debugDocumentVersioning = "YES">
79 |       <BuildableProductRunnable>
80 |          <BuildableReference
81 |             BuildableIdentifier = "primary"
82 |             BlueprintIdentifier = "9634117F1952820C00D09762"
83 |             BuildableName = "ScrollBlurView.app"
84 |             BlueprintName = "ScrollBlurView"
85 |             ReferencedContainer = "container:ScrollBlurView.xcodeproj">
86 |          </BuildableReference>
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88 |    </ProfileAction>
89 |    <AnalyzeAction
90 |       buildConfiguration = "Debug">
91 |    </AnalyzeAction>
92 |    <ArchiveAction
93 |       buildConfiguration = "Release"
94 |       revealArchiveInOrganizer = "YES">
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 3 | <plist version="1.0">
 4 | <dict>
 5 | 	<key>SchemeUserState</key>
 6 | 	<dict>
 7 | 		<key>ScrollBlurView.xcscheme</key>
 8 | 		<dict>
 9 | 			<key>orderHint</key>
10 | 			<integer>0</integer>
11 | 		</dict>
12 | 	</dict>
13 | 	<key>SuppressBuildableAutocreation</key>
14 | 	<dict>
15 | 		<key>9634117F1952820C00D09762</key>
16 | 		<dict>
17 | 			<key>primary</key>
18 | 			<true/>
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20 | 		<key>9634119A1952820C00D09762</key>
21 | 		<dict>
22 | 			<key>primary</key>
23 | 			<true/>
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--------------------------------------------------------------------------------
/ScrollBlurView/AppDelegate.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.h
 3 | //  ScrollBlurView
 4 | //
 5 | //  Created by jason on 6/19/14.
 6 | //  Copyright (c) 2014 jason. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | 
11 | @interface AppDelegate : UIResponder <UIApplicationDelegate>
12 | 
13 | @property (strong, nonatomic) UIWindow *window;
14 | 
15 | @end
16 | 


--------------------------------------------------------------------------------
/ScrollBlurView/AppDelegate.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  AppDelegate.m
 3 | //  ScrollBlurView
 4 | //
 5 | //  Created by jason on 6/19/14.
 6 | //  Copyright (c) 2014 jason. All rights reserved.
 7 | //
 8 | 
 9 | #import "AppDelegate.h"
10 | #import "ViewController.h"
11 | 
12 | @implementation AppDelegate
13 | 
14 | - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
15 | {
16 |     self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
17 |     // Override point for customization after application launch.
18 |     self.window.rootViewController = [[ViewController alloc] initWithNibName:nil bundle:nil];
19 |     [self.window makeKeyAndVisible];
20 |     
21 |     return YES;
22 | }
23 | 
24 | - (void)applicationWillResignActive:(UIApplication *)application
25 | {
26 |     // 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.
27 |     // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
28 | }
29 | 
30 | - (void)applicationDidEnterBackground:(UIApplication *)application
31 | {
32 |     // 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. 
33 |     // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
34 | }
35 | 
36 | - (void)applicationWillEnterForeground:(UIApplication *)application
37 | {
38 |     // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
39 | }
40 | 
41 | - (void)applicationDidBecomeActive:(UIApplication *)application
42 | {
43 |     // 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.
44 | }
45 | 
46 | - (void)applicationWillTerminate:(UIApplication *)application
47 | {
48 |     // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
49 | }
50 | 
51 | @end
52 | 


--------------------------------------------------------------------------------
/ScrollBlurView/Images.xcassets/AppIcon.appiconset/Contents.json:
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 1 | {
 2 |   "images" : [
 3 |     {
 4 |       "idiom" : "iphone",
 5 |       "size" : "29x29",
 6 |       "scale" : "2x"
 7 |     },
 8 |     {
 9 |       "idiom" : "iphone",
10 |       "size" : "40x40",
11 |       "scale" : "2x"
12 |     },
13 |     {
14 |       "idiom" : "iphone",
15 |       "size" : "60x60",
16 |       "scale" : "2x"
17 |     }
18 |   ],
19 |   "info" : {
20 |     "version" : 1,
21 |     "author" : "xcode"
22 |   }
23 | }


--------------------------------------------------------------------------------
/ScrollBlurView/Images.xcassets/LaunchImage.launchimage/Contents.json:
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 1 | {
 2 |   "images" : [
 3 |     {
 4 |       "orientation" : "portrait",
 5 |       "idiom" : "iphone",
 6 |       "extent" : "full-screen",
 7 |       "minimum-system-version" : "7.0",
 8 |       "scale" : "2x"
 9 |     },
10 |     {
11 |       "orientation" : "portrait",
12 |       "idiom" : "iphone",
13 |       "subtype" : "retina4",
14 |       "extent" : "full-screen",
15 |       "minimum-system-version" : "7.0",
16 |       "scale" : "2x"
17 |     }
18 |   ],
19 |   "info" : {
20 |     "version" : 1,
21 |     "author" : "xcode"
22 |   }
23 | }


--------------------------------------------------------------------------------
/ScrollBlurView/ScrollBlurView-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>CFBundleDisplayName</key>
 6 | 	<string>${PRODUCT_NAME}</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>${EXECUTABLE_NAME}</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>com.Jason.${PRODUCT_NAME:rfc1034identifier}</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundleName</key>
14 | 	<string>${PRODUCT_NAME}</string>
15 | 	<key>CFBundlePackageType</key>
16 | 	<string>APPL</string>
17 | 	<key>CFBundleShortVersionString</key>
18 | 	<string>1.0</string>
19 | 	<key>CFBundleSignature</key>
20 | 	<string>????</string>
21 | 	<key>CFBundleVersion</key>
22 | 	<string>1.0</string>
23 | 	<key>LSRequiresIPhoneOS</key>
24 | 	<true/>
25 | 	<key>UISupportedInterfaceOrientations</key>
26 | 	<array>
27 | 		<string>UIInterfaceOrientationPortrait</string>
28 | 		<string>UIInterfaceOrientationLandscapeLeft</string>
29 | 		<string>UIInterfaceOrientationLandscapeRight</string>
30 | 	</array>
31 | 	<key>UIViewControllerBasedStatusBarAppearance</key>
32 | 	<false/>
33 | </dict>
34 | </plist>
35 | 


--------------------------------------------------------------------------------
/ScrollBlurView/ScrollBlurView-Prefix.pch:
--------------------------------------------------------------------------------
 1 | //
 2 | //  Prefix header
 3 | //
 4 | //  The contents of this file are implicitly included at the beginning of every source file.
 5 | //
 6 | 
 7 | #import <Availability.h>
 8 | 
 9 | #ifndef __IPHONE_3_0
10 | #warning "This project uses features only available in iOS SDK 3.0 and later."
11 | #endif
12 | 
13 | #ifdef __OBJC__
14 |     #import <UIKit/UIKit.h>
15 |     #import <Foundation/Foundation.h>
16 | #endif
17 | 


--------------------------------------------------------------------------------
/ScrollBlurView/ScrollBlurView.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ScrollBlurView.h
 3 | //  ScrollBlurView
 4 | //
 5 | //  Created by jason on 6/19/14.
 6 | //  Copyright (c) 2014 jason. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | 
11 | @interface ScrollBlurView : UIView
12 | 
13 | - (void)animateUpWithDuration:(NSTimeInterval)duration;
14 | - (void)addBlurView:(UIView*)view withRadius:(CGFloat)radius;
15 | @end
16 | 


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/ScrollBlurView/ScrollBlurView.m:
--------------------------------------------------------------------------------
  1 | //
  2 | //  ScrollBlurView.m
  3 | //  ScrollBlurView
  4 | //
  5 | //  Created by jason on 6/19/14.
  6 | //  Copyright (c) 2014 jason. All rights reserved.
  7 | //
  8 | 
  9 | #import "ScrollBlurView.h"
 10 | #import "UIColor+Extension.h"
 11 | #import <Accelerate/Accelerate.h>
 12 | 
 13 | #define MiddleYPosition 223
 14 | 
 15 | 
 16 | @interface ScrollBlurView ()
 17 | 
 18 | @property(nonatomic) CGPoint      beginPosition;
 19 | @property(nonatomic) CGPoint      stopPostion;
 20 | @property(nonatomic) CGFloat      yPosition;
 21 | @property(nonatomic) CGFloat      pi;
 22 | @property(nonatomic) CGFloat      duration;
 23 | @property(nonatomic) CGFloat      swipeCondition;
 24 | @property(nonatomic) BOOL         isAnimationReset;
 25 | @property(nonatomic) UIButton    *swipeDownBtn;
 26 | @property(nonatomic) UIView      *blurView;
 27 | @property(nonatomic) UIImageView *blurImageView;
 28 | @property(nonatomic) CGFloat      viewHeight;
 29 | @property(nonatomic) CGFloat      viewWidth;
 30 | 
 31 | @end
 32 | 
 33 | @implementation ScrollBlurView
 34 | 
 35 | - (id)initWithFrame:(CGRect)frame
 36 | {
 37 |     self = [super initWithFrame:frame];
 38 |     if (self) {
 39 |         // Init
 40 |         self.backgroundColor = [UIColor colorWithHex:0x212121 alpha:0.7];
 41 |         
 42 |         _viewHeight          = frame.size.height;
 43 |         _viewWidth           = frame.size.width;
 44 |         _swipeDownBtn        = [[UIButton alloc] initWithFrame:CGRectMake(140, 5, 40, 40) ];
 45 |         
 46 |         [_swipeDownBtn setBackgroundImage:[UIImage imageNamed:@"anchor.png"] forState:UIControlStateNormal];
 47 |         [_swipeDownBtn addTarget:self action:@selector(swipeInit:) forControlEvents:UIControlEventTouchDown];
 48 |         
 49 |         UIPanGestureRecognizer *panGR  = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(swipeView:) ];
 50 |         panGR.minimumNumberOfTouches   = 1;
 51 |         panGR.maximumNumberOfTouches   = 1;
 52 |         
 53 |         [_swipeDownBtn addGestureRecognizer:panGR];
 54 |         
 55 |         [self addSubview:_swipeDownBtn];
 56 |         
 57 |     }
 58 |     return self;
 59 | }
 60 | 
 61 | - (void)addBlurView:(UIView*)view withRadius:(CGFloat)radius
 62 | {
 63 |     UIImage *captureImage   = [self captureView:view];
 64 |     UIImage *blurImage      = [self blurImage:captureImage WithRadius:radius];
 65 |     _blurImageView          = [[UIImageView alloc] initWithImage:blurImage];
 66 |     _blurImageView.frame    = CGRectMake(0, -_viewHeight,_viewWidth , _viewHeight);
 67 |     _blurView               = [[UIView alloc] initWithFrame:CGRectMake(0, _viewHeight , _viewWidth,0 )];
 68 |     _blurView.clipsToBounds = YES;
 69 |     [_blurView addSubview:_blurImageView];
 70 |     [self.superview addSubview:_blurView];
 71 |     [self.superview bringSubviewToFront:self];
 72 | }
 73 | 
 74 | - (UIImage *)blurImage:(UIImage *)image WithRadius:(CGFloat)blurRadius
 75 | {
 76 |     if ((blurRadius < 0.0f) || (blurRadius > 1.0f)) {
 77 |         blurRadius = 0.5f;
 78 |     }
 79 |     int boxSize = (int)(blurRadius * 100);
 80 |     boxSize    -= (boxSize % 2) + 1;
 81 |     
 82 |     CGImageRef rawImage = image.CGImage;
 83 |     vImage_Buffer inBuffer, outBuffer;
 84 |     vImage_Error  error;
 85 |     void *pixelBuffer;
 86 |     
 87 |     CGDataProviderRef inProvider = CGImageGetDataProvider(rawImage);
 88 |     CFDataRef inBitmapData       = CGDataProviderCopyData(inProvider);
 89 |     
 90 |     inBuffer.width     = CGImageGetWidth(rawImage);
 91 |     inBuffer.height    = CGImageGetHeight(rawImage);
 92 |     inBuffer.rowBytes  = CGImageGetBytesPerRow(rawImage);
 93 |     inBuffer.data      = (void *)CFDataGetBytePtr(inBitmapData);
 94 |     pixelBuffer        = malloc(CGImageGetBytesPerRow(rawImage) * CGImageGetHeight(rawImage));
 95 |     
 96 |     outBuffer.data     = pixelBuffer;
 97 |     outBuffer.width    = CGImageGetWidth(rawImage);
 98 |     outBuffer.height   = CGImageGetHeight(rawImage);
 99 |     outBuffer.rowBytes = CGImageGetBytesPerRow(rawImage);
100 |     
101 |     error = vImageBoxConvolve_ARGB8888(&inBuffer, &outBuffer, NULL, 0, 0, boxSize, boxSize, NULL, kvImageEdgeExtend);
102 |     
103 |     if (error) {
104 |         NSLog(@"error for convolution %ld",error);
105 |     }
106 |     
107 |     CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
108 |     CGContextRef ctx           = CGBitmapContextCreate(outBuffer.data, outBuffer.width, outBuffer.height, 8, outBuffer.rowBytes, colorSpace, CGImageGetBitmapInfo(image.CGImage));
109 |     CGImageRef imageRef        = CGBitmapContextCreateImage(ctx);
110 |     UIImage *returnImage       = [UIImage imageWithCGImage:imageRef];
111 |     
112 |     CGContextRelease(ctx);
113 |     CGColorSpaceRelease(colorSpace);
114 |     free(pixelBuffer);
115 |     CFRelease(inBitmapData);
116 |     CGImageRelease(imageRef);
117 |     
118 |     return returnImage;
119 | }
120 | 
121 | - (UIImage *)captureView:(UIView *)view
122 | {
123 |     UIGraphicsBeginImageContext([UIScreen mainScreen].bounds.size);
124 |     CGContextRef ctx = UIGraphicsGetCurrentContext();
125 |     CGContextFillRect(ctx, [UIScreen mainScreen].bounds);
126 |     [view.layer renderInContext:ctx];
127 |     UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
128 |     UIGraphicsEndImageContext();
129 |     
130 |     return newImage;
131 | }
132 | 
133 | - (void)animateDownWithDuration:(NSTimeInterval)duration
134 | {
135 |     
136 |     [UIView animateWithDuration:duration animations:^(){
137 |         _blurView.frame      = CGRectMake(0,   _viewHeight, _viewWidth, _viewHeight);
138 |         _blurImageView.frame = CGRectMake(0, - _viewHeight, _viewWidth, _viewHeight);
139 |         self.frame           = CGRectMake(0,   _viewHeight, _viewWidth, _viewHeight);
140 |     }];
141 |     
142 | }
143 | 
144 | - (void)animateUpWithDuration:(NSTimeInterval)duration
145 | {
146 |     
147 |     [UIView animateWithDuration:duration animations:^(){
148 |         _blurView.frame      = CGRectMake(0,   20, _viewWidth, _viewHeight);
149 |         _blurImageView.frame = CGRectMake(0, - 20, _viewWidth, _viewHeight);
150 |         self.frame           = CGRectMake(0,   20, _viewWidth, _viewHeight);
151 |     }];
152 |     
153 | }
154 | 
155 | - (void)swipeView:(UIPanGestureRecognizer*)sender{
156 |     
157 |     CGPoint currentPosition = [sender locationInView:self.superview];
158 |     if(currentPosition.y == _beginPosition.y) return;
159 |     CGFloat currentPI = (currentPosition.x - _beginPosition.x)/currentPosition.y;
160 |     NSLog(@"rotate:%f",currentPI);
161 |     
162 |     if (-1.30 < currentPI && currentPI < 1.30) {
163 |         _swipeDownBtn.transform = CGAffineTransformMakeRotation(- currentPI);
164 |         _pi = currentPI;
165 |     }
166 |     if (currentPosition.y > _yPosition) {
167 |         CGFloat y            = currentPosition.y -  _beginPosition.y;
168 |         self.frame           = CGRectMake(0,  y, _viewWidth, _viewHeight);
169 |         _blurView.frame      = CGRectMake(0,  y, _viewWidth, _viewHeight);
170 |         _blurImageView.frame = CGRectMake(0, -y, _viewWidth, _viewHeight);
171 |         
172 |     }
173 |     if (sender.state == UIGestureRecognizerStateBegan) {
174 |         _duration         = 0.4;
175 |     }
176 |     if (sender.state == UIGestureRecognizerStateEnded) {
177 |         
178 |         _stopPostion = self.frame.origin;
179 |         
180 |         [self animation:_duration target:self  completion:@selector(swipeAnimate:) animation:^(){
181 |             _swipeDownBtn.transform = CGAffineTransformMakeRotation(_pi);
182 |         }];
183 |         
184 |         if(_stopPostion.y > MiddleYPosition){
185 |             [self animateDownWithDuration:0.4];
186 |         }else{
187 |             [self animateUpWithDuration:0.4];
188 |         }
189 |     }
190 |     NSLog(@"Begin Position:(%f,%f) Current Position:(%f,%f)",_beginPosition.x,_beginPosition.y,currentPosition.x,currentPosition.y);
191 |     
192 | }
193 | 
194 | - (void)swipeInit:(UIButton *)sender{
195 |     
196 |     _beginPosition    = CGPointMake(_swipeDownBtn.frame.origin.x +30, _swipeDownBtn.frame.origin.y + 43 );
197 |     _yPosition        = _beginPosition.y + 20;
198 |     _duration         = 0.4;
199 |     _isAnimationReset = YES;
200 |     NSLog(@"begin duration:%f",_duration);
201 |     
202 | }
203 | 
204 | - (void)swipeAnimate:(id)sender{
205 |     
206 |     NSLog(@"pi:%f,duration:%f",_pi,_duration);
207 |     _swipeCondition = _pi * 100;
208 |     if ((-1.0 < _swipeCondition && _swipeCondition < 1.0 ) || _isAnimationReset) {
209 |         return;
210 |     }
211 |     _pi       *= -0.8;
212 |     _duration *= 0.9;
213 |     [self animation:_duration target:self completion:@selector(swipeAnimate:) animation:^(){
214 |         _swipeDownBtn.transform = CGAffineTransformMakeRotation(_pi);
215 |     }];
216 |     
217 |     
218 | }
219 | 
220 | - (void)animation:(NSTimeInterval)duration target:(id)target completion:(SEL)action animation:(void (^)())animationBlock
221 | {
222 |     _isAnimationReset = NO;
223 |     [UIView beginAnimations:nil context:nil];
224 |     [UIView setAnimationDuration:duration];
225 |     [UIView setAnimationDelegate:target];
226 |     [UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
227 |     animationBlock();
228 |     [UIView setAnimationDidStopSelector:action];
229 |     [UIView commitAnimations];
230 |     
231 | }
232 | 
233 | /*
234 | // Only override drawRect: if you perform custom drawing.
235 | // An empty implementation adversely affects performance during animation.
236 | - (void)drawRect:(CGRect)rect
237 | {
238 |     // Drawing code
239 | }
240 | */
241 | 
242 | @end
243 | 


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/ScrollBlurView/UIColor+Extension.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  UIColor+view.h
 3 | //  ScrollBlurView
 4 | //
 5 | //  Created by jason on 6/19/14.
 6 | //  Copyright (c) 2014 jason. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | 
11 | @interface UIColor (Extension)
12 | 
13 | + (UIColor*)colorWithHex:(uint)hex alpha:(CGFloat)alpha;
14 | @end
15 | 


--------------------------------------------------------------------------------
/ScrollBlurView/UIColor+Extension.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  UIColor+view.m
 3 | //  ScrollBlurView
 4 | //
 5 | //  Created by jason on 6/19/14.
 6 | //  Copyright (c) 2014 jason. All rights reserved.
 7 | //
 8 | 
 9 | #import "UIColor+Extension.h"
10 | 
11 | @implementation UIColor (Extension)
12 | 
13 | + (UIColor *)colorWithHex:(uint)hex alpha:(CGFloat)alpha
14 | {
15 |     int red,green,blue;
16 |     
17 |     blue  = (hex  & 0x0000FF);
18 |     green = ((hex & 0x00FF00) >> 8);
19 |     red   = ((hex & 0xFF0000) >> 16);
20 |     
21 |     return [UIColor colorWithRed:red / 255.0 green:green / 255.0 blue:blue / 255.0 alpha:alpha];
22 |     
23 | }
24 | 
25 | @end
26 | 


--------------------------------------------------------------------------------
/ScrollBlurView/ViewController.h:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ViewController.h
 3 | //  ScrollBlurView
 4 | //
 5 | //  Created by jason on 6/19/14.
 6 | //  Copyright (c) 2014 jason. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | 
11 | @interface ViewController : UIViewController
12 | 
13 | @end
14 | 


--------------------------------------------------------------------------------
/ScrollBlurView/ViewController.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ViewController.m
 3 | //  ScrollBlurView
 4 | //
 5 | //  Created by jason on 6/19/14.
 6 | //  Copyright (c) 2014 jason. All rights reserved.
 7 | //
 8 | 
 9 | #import "ViewController.h"
10 | #import "ScrollBlurView.h"
11 | 
12 | #define ScreenHeight [UIScreen mainScreen].bounds.size.height
13 | #define ScreenWidth  [UIScreen mainScreen].bounds.size.width
14 | 
15 | @interface ViewController ()
16 | 
17 | @property NSArray        *color;
18 | @property UIButton       *blurViewButton;
19 | @property ScrollBlurView *scrollBlurView;
20 | 
21 | @end
22 | 
23 | @implementation ViewController
24 | 
25 | - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
26 | {
27 |     self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
28 |     if (self) {
29 |         // Custom initialization
30 |         self.view.backgroundColor = [UIColor whiteColor];
31 |         
32 |         _color = @[[UIColor grayColor],[UIColor greenColor],[UIColor blueColor],[UIColor purpleColor],[UIColor cyanColor],[UIColor yellowColor]];
33 |         _blurViewButton = [[UIButton alloc] initWithFrame:CGRectMake(100, 450, 100, 50)];
34 |         _blurViewButton.backgroundColor   = [UIColor colorWithRed:0.1 green:0.7 blue:0.9 alpha:1.0];
35 |         [_blurViewButton setTitle:@"blurView" forState:UIControlStateNormal];
36 |         [_blurViewButton addTarget:self action:@selector(swipeView:) forControlEvents:UIControlEventTouchUpInside];
37 |         
38 |         [self.view addSubview:_blurViewButton];
39 |         [self.view addSubview:[self addDotButtonWithFrame:CGRectMake(100, 100, 50,50)]];
40 |         [self.view addSubview:[self addDotButtonWithFrame:CGRectMake(30, 30, 50,50)]];
41 |         [self.view addSubview:[self addDotButtonWithFrame:CGRectMake(150, 150, 50, 50)]];
42 |         [self.view addSubview:[self addDotButtonWithFrame:CGRectMake(100, 250, 50, 50)]];
43 |         [self.view addSubview:[self addDotButtonWithFrame:CGRectMake(200, 250, 50, 50)]];
44 |         [self.view addSubview:[self addDotButtonWithFrame:CGRectMake(160, 350, 50, 50)]];
45 |         
46 |         
47 |         _scrollBlurView = [[ScrollBlurView alloc] initWithFrame:CGRectMake(0, ScreenHeight, ScreenWidth, ScreenHeight)];
48 |         
49 |         // the method addBlurView of ScrollBlurView must invocated behind addSubview
50 |         [self.view addSubview:_scrollBlurView];
51 |         [_scrollBlurView addBlurView:self.view withRadius:0.4];
52 |     }
53 |     return self;
54 | }
55 | 
56 | - (void) swipeView:(id)sender{
57 |     
58 |     [_scrollBlurView animateUpWithDuration:0.5];
59 |     
60 | }
61 | 
62 | - (UIButton*)addDotButtonWithFrame:(CGRect)frame
63 | {
64 |     
65 |     UIButton *button = [[UIButton alloc] initWithFrame:frame];
66 |     button.layer.cornerRadius = 25;
67 |     button.backgroundColor = [_color objectAtIndex:random() % _color.count];
68 |     
69 |     return  button;
70 |     
71 | }
72 | 
73 | - (void)viewDidLoad
74 | {
75 |     [super viewDidLoad];
76 |     // Do any additional setup after loading the view.
77 | }
78 | 
79 | - (void)didReceiveMemoryWarning
80 | {
81 |     [super didReceiveMemoryWarning];
82 |     // Dispose of any resources that can be recreated.
83 | }
84 | 
85 | /*
86 | #pragma mark - Navigation
87 | 
88 | // In a storyboard-based application, you will often want to do a little preparation before navigation
89 | - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
90 | {
91 |     // Get the new view controller using [segue destinationViewController].
92 |     // Pass the selected object to the new view controller.
93 | }
94 | */
95 | 
96 | @end
97 | 


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/ScrollBlurView/anchor.png:
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https://raw.githubusercontent.com/JasonZengJ/ScrollBlurView/b60ce2ab310ba290a1bcdc55b34a1b60c2f102a3/ScrollBlurView/anchor.png


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/ScrollBlurView/en.lproj/InfoPlist.strings:
--------------------------------------------------------------------------------
1 | /* Localized versions of Info.plist keys */
2 | 
3 | 


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/ScrollBlurView/main.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  main.m
 3 | //  ScrollBlurView
 4 | //
 5 | //  Created by jason on 6/19/14.
 6 | //  Copyright (c) 2014 jason. All rights reserved.
 7 | //
 8 | 
 9 | #import <UIKit/UIKit.h>
10 | 
11 | #import "AppDelegate.h"
12 | 
13 | int main(int argc, char * argv[])
14 | {
15 |     @autoreleasepool {
16 |         return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
17 |     }
18 | }
19 | 


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/ScrollBlurViewTests/ScrollBlurViewTests-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>en</string>
 7 | 	<key>CFBundleExecutable</key>
 8 | 	<string>${EXECUTABLE_NAME}</string>
 9 | 	<key>CFBundleIdentifier</key>
10 | 	<string>com.Jason.${PRODUCT_NAME:rfc1034identifier}</string>
11 | 	<key>CFBundleInfoDictionaryVersion</key>
12 | 	<string>6.0</string>
13 | 	<key>CFBundlePackageType</key>
14 | 	<string>BNDL</string>
15 | 	<key>CFBundleShortVersionString</key>
16 | 	<string>1.0</string>
17 | 	<key>CFBundleSignature</key>
18 | 	<string>????</string>
19 | 	<key>CFBundleVersion</key>
20 | 	<string>1</string>
21 | </dict>
22 | </plist>
23 | 


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/ScrollBlurViewTests/ScrollBlurViewTests.m:
--------------------------------------------------------------------------------
 1 | //
 2 | //  ScrollBlurViewTests.m
 3 | //  ScrollBlurViewTests
 4 | //
 5 | //  Created by jason on 6/19/14.
 6 | //  Copyright (c) 2014 jason. All rights reserved.
 7 | //
 8 | 
 9 | #import <XCTest/XCTest.h>
10 | 
11 | @interface ScrollBlurViewTests : XCTestCase
12 | 
13 | @end
14 | 
15 | @implementation ScrollBlurViewTests
16 | 
17 | - (void)setUp
18 | {
19 |     [super setUp];
20 |     // Put setup code here. This method is called before the invocation of each test method in the class.
21 | }
22 | 
23 | - (void)tearDown
24 | {
25 |     // Put teardown code here. This method is called after the invocation of each test method in the class.
26 |     [super tearDown];
27 | }
28 | 
29 | - (void)testExample
30 | {
31 |     XCTFail(@"No implementation for \"%s\"", __PRETTY_FUNCTION__);
32 | }
33 | 
34 | @end
35 | 


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/ScrollBlurViewTests/en.lproj/InfoPlist.strings:
--------------------------------------------------------------------------------
1 | /* Localized versions of Info.plist keys */
2 | 
3 | 


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/demo.gif:
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https://raw.githubusercontent.com/JasonZengJ/ScrollBlurView/b60ce2ab310ba290a1bcdc55b34a1b60c2f102a3/demo.gif


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/effect1.png:
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https://raw.githubusercontent.com/JasonZengJ/ScrollBlurView/b60ce2ab310ba290a1bcdc55b34a1b60c2f102a3/effect1.png


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/effect2.png:
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https://raw.githubusercontent.com/JasonZengJ/ScrollBlurView/b60ce2ab310ba290a1bcdc55b34a1b60c2f102a3/effect2.png


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/effect3.png:
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https://raw.githubusercontent.com/JasonZengJ/ScrollBlurView/b60ce2ab310ba290a1bcdc55b34a1b60c2f102a3/effect3.png


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