├── .gitignore ├── BSPanorama.gif ├── BSPanoramaView.podspec ├── BSPanoramaView.xcodeproj ├── project.pbxproj └── project.xcworkspace │ └── contents.xcworkspacedata ├── BSPanoramaView ├── AppDelegate.h ├── AppDelegate.m ├── Assets.xcassets │ ├── AppIcon.appiconset │ │ └── Contents.json │ ├── Contents.json │ ├── placeholder.imageset │ │ ├── Contents.json │ │ └── WechatIMG130.png │ └── test.imageset │ │ ├── Contents.json │ │ └── test-2.png ├── BSPanoramaView.h ├── BSPanoramaView.m ├── Base.lproj │ ├── LaunchScreen.storyboard │ └── Main.storyboard ├── Info.plist ├── PanoTableViewCell.h ├── PanoTableViewCell.m ├── SinglePanoViewController.h ├── SinglePanoViewController.m ├── TablePanoViewController.h ├── TablePanoViewController.m ├── ViewController.h ├── ViewController.m └── main.m ├── Chinese.md ├── LICENSE └── README.md /.gitignore: -------------------------------------------------------------------------------- 1 | # Xcode 2 | # 3 | # gitignore contributors: remember to update Global/Xcode.gitignore, Objective-C.gitignore & Swift.gitignore 4 | 5 | ## Build generated 6 | build/ 7 | DerivedData/ 8 | 9 | ## Various settings 10 | *.pbxuser 11 | !default.pbxuser 12 | *.mode1v3 13 | !default.mode1v3 14 | *.mode2v3 15 | !default.mode2v3 16 | *.perspectivev3 17 | !default.perspectivev3 18 | xcuserdata/ 19 | 20 | ## Other 21 | *.moved-aside 22 | *.xccheckout 23 | *.xcscmblueprint 24 | 25 | ## Obj-C/Swift specific 26 | *.hmap 27 | *.ipa 28 | *.dSYM.zip 29 | *.dSYM 30 | 31 | # CocoaPods 32 | # 33 | # We recommend against adding the Pods directory to your .gitignore. However 34 | # you should judge for yourself, the pros and cons are mentioned at: 35 | # https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control 36 | # 37 | # Pods/ 38 | 39 | # Carthage 40 | # 41 | # Add this line if you want to avoid checking in source code from Carthage dependencies. 42 | # Carthage/Checkouts 43 | 44 | Carthage/Build 45 | 46 | # fastlane 47 | # 48 | # It is recommended to not store the screenshots in the git repo. Instead, use fastlane to re-generate the 49 | # screenshots whenever they are needed. 50 | # For more information about the recommended setup visit: 51 | # https://docs.fastlane.tools/best-practices/source-control/#source-control 52 | 53 | fastlane/report.xml 54 | fastlane/Preview.html 55 | fastlane/screenshots 56 | fastlane/test_output 57 | 58 | # Code Injection 59 | # 60 | # After new code Injection tools there's a generated folder /iOSInjectionProject 61 | # https://github.com/johnno1962/injectionforxcode 62 | 63 | iOSInjectionProject/ 64 | -------------------------------------------------------------------------------- /BSPanorama.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bestswifter/BSPanoramaView/cc41ef1efe458f3d55ae97db63fb9434aa19245d/BSPanorama.gif -------------------------------------------------------------------------------- /BSPanoramaView.podspec: -------------------------------------------------------------------------------- 1 | # 2 | # Be sure to run `pod spec lint BSPanoramaView.podspec' to ensure this is a 3 | # valid spec and to remove all comments including this before submitting the spec. 4 | # 5 | # To learn more about Podspec attributes see http://docs.cocoapods.org/specification.html 6 | # To see working Podspecs in the CocoaPods repo see https://github.com/CocoaPods/Specs/ 7 | # 8 | 9 | Pod::Spec.new do |s| 10 | 11 | # ――― Spec Metadata ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 12 | # 13 | # These will help people to find your library, and whilst it 14 | # can feel like a chore to fill in it's definitely to your advantage. The 15 | # summary should be tweet-length, and the description more in depth. 16 | # 17 | 18 | s.name = "BSPanoramaView" 19 | s.version = "0.0.3" 20 | s.summary = "A lightweight panorama view browser on iOS platform" 21 | 22 | # This description is used to generate tags and improve search results. 23 | # * Think: What does it do? Why did you write it? What is the focus? 24 | # * Try to keep it short, snappy and to the point. 25 | # * Write the description between the DESC delimiters below. 26 | # * Finally, don't worry about the indent, CocoaPods strips it! 27 | s.description = "Most third-party framework is too large to be put into an app, I write this pod because I only need to show a panorama picture." 28 | 29 | s.homepage = "https://github.com/bestswifter/BSPanoramaView" 30 | # s.screenshots = "www.example.com/screenshots_1.gif", "www.example.com/screenshots_2.gif" 31 | 32 | 33 | # ――― Spec License ――――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 34 | # 35 | # Licensing your code is important. See http://choosealicense.com for more info. 36 | # CocoaPods will detect a license file if there is a named LICENSE* 37 | # Popular ones are 'MIT', 'BSD' and 'Apache License, Version 2.0'. 38 | # 39 | 40 | s.license = "GPL 3.0" 41 | # s.license = { :type => "MIT", :file => "FILE_LICENSE" } 42 | 43 | 44 | # ――― Author Metadata ――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 45 | # 46 | # Specify the authors of the library, with email addresses. Email addresses 47 | # of the authors are extracted from the SCM log. E.g. $ git log. CocoaPods also 48 | # accepts just a name if you'd rather not provide an email address. 49 | # 50 | # Specify a social_media_url where others can refer to, for example a twitter 51 | # profile URL. 52 | # 53 | 54 | s.author = { "bestswifter" => "ktzhang@bestswifter.com" } 55 | # Or just: s.author = "zhangxingyu" 56 | # s.authors = { "zhangxingyu" => "zhangxingyu@baidu.com" } 57 | # s.social_media_url = "http://twitter.com/zhangxingyu" 58 | 59 | # ――― Platform Specifics ――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 60 | # 61 | # If this Pod runs only on iOS or OS X, then specify the platform and 62 | # the deployment target. You can optionally include the target after the platform. 63 | # 64 | 65 | s.platform = :ios 66 | # s.platform = :ios, "5.0" 67 | 68 | # When using multiple platforms 69 | # s.ios.deployment_target = "5.0" 70 | # s.osx.deployment_target = "10.7" 71 | # s.watchos.deployment_target = "2.0" 72 | # s.tvos.deployment_target = "9.0" 73 | 74 | 75 | # ――― Source Location ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 76 | # 77 | # Specify the location from where the source should be retrieved. 78 | # Supports git, hg, bzr, svn and HTTP. 79 | # 80 | 81 | s.source = { :git => "https://github.com/bestswifter/BSPanoramaView.git", :tag => "#{s.version}" } 82 | 83 | 84 | # ――― Source Code ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 85 | # 86 | # CocoaPods is smart about how it includes source code. For source files 87 | # giving a folder will include any swift, h, m, mm, c & cpp files. 88 | # For header files it will include any header in the folder. 89 | # Not including the public_header_files will make all headers public. 90 | # 91 | 92 | s.source_files = "BSPanoramaView/BSPanoramaView.{h,m}" 93 | # s.public_header_files = "Classes/**/*.h" 94 | 95 | 96 | # ――― Resources ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 97 | # 98 | # A list of resources included with the Pod. These are copied into the 99 | # target bundle with a build phase script. Anything else will be cleaned. 100 | # You can preserve files from being cleaned, please don't preserve 101 | # non-essential files like tests, examples and documentation. 102 | # 103 | 104 | # s.resource = "icon.png" 105 | # s.resources = "Resources/*.png" 106 | 107 | # s.preserve_paths = "FilesToSave", "MoreFilesToSave" 108 | 109 | 110 | # ――― Project Linking ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 111 | # 112 | # Link your library with frameworks, or libraries. Libraries do not include 113 | # the lib prefix of their name. 114 | # 115 | 116 | # s.framework = "SomeFramework" 117 | # s.frameworks = "SomeFramework", "AnotherFramework" 118 | s.frameworks = "GLKit", "CoreMotion" 119 | 120 | # s.library = "iconv" 121 | # s.libraries = "iconv", "xml2" 122 | 123 | 124 | # ――― Project Settings ――――――――――――――――――――――――――――――――――――――――――――――――――――――――― # 125 | # 126 | # If your library depends on compiler flags you can set them in the xcconfig hash 127 | # where they will only apply to your library. If you depend on other Podspecs 128 | # you can include multiple dependencies to ensure it works. 129 | 130 | # s.requires_arc = true 131 | 132 | # s.xcconfig = { "HEADER_SEARCH_PATHS" => "$(SDKROOT)/usr/include/libxml2" } 133 | # s.dependency "JSONKit", "~> 1.4" 134 | 135 | end 136 | -------------------------------------------------------------------------------- /BSPanoramaView.xcodeproj/project.pbxproj: -------------------------------------------------------------------------------- 1 | // !$*UTF8*$! 2 | { 3 | archiveVersion = 1; 4 | classes = { 5 | }; 6 | objectVersion = 48; 7 | objects = { 8 | 9 | /* Begin PBXBuildFile section */ 10 | 9B9E00B91FBC29B600DB85C6 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = 9B9E00B81FBC29B600DB85C6 /* AppDelegate.m */; }; 11 | 9B9E00BC1FBC29B600DB85C6 /* ViewController.m in Sources */ = {isa = PBXBuildFile; fileRef = 9B9E00BB1FBC29B600DB85C6 /* ViewController.m */; }; 12 | 9B9E00BF1FBC29B600DB85C6 /* Main.storyboard in Resources */ = {isa = PBXBuildFile; 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288 | GCC_WARN_64_TO_32_BIT_CONVERSION = YES; 289 | GCC_WARN_ABOUT_RETURN_TYPE = YES_ERROR; 290 | GCC_WARN_UNDECLARED_SELECTOR = YES; 291 | GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE; 292 | GCC_WARN_UNUSED_FUNCTION = YES; 293 | GCC_WARN_UNUSED_VARIABLE = YES; 294 | IPHONEOS_DEPLOYMENT_TARGET = 11.1; 295 | MTL_ENABLE_DEBUG_INFO = NO; 296 | SDKROOT = iphoneos; 297 | VALIDATE_PRODUCT = YES; 298 | }; 299 | name = Release; 300 | }; 301 | 9B9E00CB1FBC29B600DB85C6 /* Debug */ = { 302 | isa = XCBuildConfiguration; 303 | buildSettings = { 304 | ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon; 305 | CODE_SIGN_STYLE = Automatic; 306 | DEVELOPMENT_TEAM = DU8G6Z9DUA; 307 | INFOPLIST_FILE = BSPanoramaView/Info.plist; 308 | LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks"; 309 | PRODUCT_BUNDLE_IDENTIFIER = com.bestswifter.BSPanoramaView.BSPanoramaView; 310 | PRODUCT_NAME = "$(TARGET_NAME)"; 311 | TARGETED_DEVICE_FAMILY = "1,2"; 312 | }; 313 | name = Debug; 314 | }; 315 | 9B9E00CC1FBC29B600DB85C6 /* Release */ = { 316 | isa = XCBuildConfiguration; 317 | buildSettings = { 318 | ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon; 319 | CODE_SIGN_STYLE = Automatic; 320 | DEVELOPMENT_TEAM = DU8G6Z9DUA; 321 | INFOPLIST_FILE = BSPanoramaView/Info.plist; 322 | LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks"; 323 | PRODUCT_BUNDLE_IDENTIFIER = com.bestswifter.BSPanoramaView.BSPanoramaView; 324 | PRODUCT_NAME = "$(TARGET_NAME)"; 325 | TARGETED_DEVICE_FAMILY = "1,2"; 326 | }; 327 | name = Release; 328 | }; 329 | /* End XCBuildConfiguration section */ 330 | 331 | /* Begin XCConfigurationList section */ 332 | 9B9E00AF1FBC29B600DB85C6 /* Build configuration list for PBXProject "BSPanoramaView" */ = { 333 | isa = XCConfigurationList; 334 | buildConfigurations = ( 335 | 9B9E00C81FBC29B600DB85C6 /* Debug */, 336 | 9B9E00C91FBC29B600DB85C6 /* Release */, 337 | ); 338 | defaultConfigurationIsVisible = 0; 339 | defaultConfigurationName = Release; 340 | }; 341 | 9B9E00CA1FBC29B600DB85C6 /* Build configuration list for PBXNativeTarget "BSPanoramaView" */ = { 342 | isa = XCConfigurationList; 343 | buildConfigurations = ( 344 | 9B9E00CB1FBC29B600DB85C6 /* Debug */, 345 | 9B9E00CC1FBC29B600DB85C6 /* Release */, 346 | ); 347 | defaultConfigurationIsVisible = 0; 348 | defaultConfigurationName = Release; 349 | }; 350 | /* End XCConfigurationList section */ 351 | }; 352 | rootObject = 9B9E00AC1FBC29B600DB85C6 /* Project object */; 353 | } 354 | -------------------------------------------------------------------------------- /BSPanoramaView.xcodeproj/project.xcworkspace/contents.xcworkspacedata: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /BSPanoramaView/AppDelegate.h: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.h 3 | // BSPanoramaView 4 | // 5 | // Created by 张星宇 on 11/15/17. 6 | // Copyright © 2017 bestswifter. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface AppDelegate : UIResponder 12 | 13 | @property (strong, nonatomic) UIWindow *window; 14 | 15 | 16 | @end 17 | 18 | -------------------------------------------------------------------------------- /BSPanoramaView/AppDelegate.m: -------------------------------------------------------------------------------- 1 | // 2 | // AppDelegate.m 3 | // BSPanoramaView 4 | // 5 | // Created by 张星宇 on 11/15/17. 6 | // Copyright © 2017 bestswifter. All rights reserved. 7 | // 8 | 9 | #import "AppDelegate.h" 10 | #import "ViewController.h" 11 | 12 | @interface AppDelegate () 13 | 14 | @end 15 | 16 | @implementation AppDelegate 17 | 18 | 19 | - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 20 | // Override point for customization after application launch. 21 | ViewController *viewController = [[ViewController alloc] init]; 22 | UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:viewController]; 23 | self.window.rootViewController = nav; 24 | return YES; 25 | } 26 | 27 | 28 | - (void)applicationWillResignActive:(UIApplication *)application { 29 | // 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. 30 | // Use this method to pause ongoing tasks, disable timers, and invalidate graphics rendering callbacks. Games should use this method to pause the game. 31 | } 32 | 33 | 34 | - (void)applicationDidEnterBackground:(UIApplication *)application { 35 | // 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. 36 | // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits. 37 | } 38 | 39 | 40 | - (void)applicationWillEnterForeground:(UIApplication *)application { 41 | // 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. 42 | } 43 | 44 | 45 | - (void)applicationDidBecomeActive:(UIApplication *)application { 46 | // 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. 47 | } 48 | 49 | 50 | - (void)applicationWillTerminate:(UIApplication *)application { 51 | // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:. 52 | } 53 | 54 | 55 | @end 56 | -------------------------------------------------------------------------------- /BSPanoramaView/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 | } -------------------------------------------------------------------------------- /BSPanoramaView/Assets.xcassets/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "info" : { 3 | "version" : 1, 4 | "author" : "xcode" 5 | } 6 | } -------------------------------------------------------------------------------- /BSPanoramaView/Assets.xcassets/placeholder.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x" 6 | }, 7 | { 8 | "idiom" : "universal", 9 | "scale" : "2x" 10 | }, 11 | { 12 | "idiom" : "universal", 13 | "filename" : "WechatIMG130.png", 14 | "scale" : "3x" 15 | } 16 | ], 17 | "info" : { 18 | "version" : 1, 19 | "author" : "xcode" 20 | } 21 | } -------------------------------------------------------------------------------- /BSPanoramaView/Assets.xcassets/placeholder.imageset/WechatIMG130.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bestswifter/BSPanoramaView/cc41ef1efe458f3d55ae97db63fb9434aa19245d/BSPanoramaView/Assets.xcassets/placeholder.imageset/WechatIMG130.png -------------------------------------------------------------------------------- /BSPanoramaView/Assets.xcassets/test.imageset/Contents.json: -------------------------------------------------------------------------------- 1 | { 2 | "images" : [ 3 | { 4 | "idiom" : "universal", 5 | "scale" : "1x" 6 | }, 7 | { 8 | "idiom" : "universal", 9 | "scale" : "2x" 10 | }, 11 | { 12 | "idiom" : "universal", 13 | "filename" : "test-2.png", 14 | "scale" : "3x" 15 | } 16 | ], 17 | "info" : { 18 | "version" : 1, 19 | "author" : "xcode" 20 | } 21 | } -------------------------------------------------------------------------------- /BSPanoramaView/Assets.xcassets/test.imageset/test-2.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/bestswifter/BSPanoramaView/cc41ef1efe458f3d55ae97db63fb9434aa19245d/BSPanoramaView/Assets.xcassets/test.imageset/test-2.png -------------------------------------------------------------------------------- /BSPanoramaView/BSPanoramaView.h: -------------------------------------------------------------------------------- 1 | // 2 | // BSPanoramaView.h 3 | // BSPanoramaView 4 | // 5 | // Created by 张星宇 on 11/15/17. 6 | // Copyright © 2017 bestswifter. All rights reserved. 7 | // 8 | 9 | #import 10 | #import 11 | #import 12 | 13 | @class BSPanoramaView; 14 | 15 | @interface PanoramaManager: NSObject 16 | 17 | @property (nonatomic, assign) GLKQuaternion lastQuaternion; ///< 存储最近一次有效的四元数 18 | 19 | + (PanoramaManager *)sharedInstance; 20 | - (void)registerView:(BSPanoramaView *)view; 21 | - (void)unRegisterView:(BSPanoramaView *)view; 22 | 23 | @end 24 | 25 | @interface BSPanoramaView : GLKView 26 | 27 | /** 28 | 新建全景图对象 29 | 30 | @param frame 图片大小 31 | @return 图片资源名称 32 | */ 33 | - (instancetype)initWithFrame:(CGRect)frame; 34 | 35 | /** 36 | 新建全景图对象 37 | 38 | @param frame 图片大小 39 | @param imageName 图片资源名称，如果图片分辨率高于 4096 * 2048，为了避免过高的内存占用会拒绝加载 40 | @return 全景图对象 41 | */ 42 | - (instancetype)initWithFrame:(CGRect)frame imageName:(NSString *)imageName; 43 | 44 | /** 45 | 加载全景图片 46 | 47 | @param imageName 全景图图片名称 48 | */ 49 | - (void)setImageWithName:(NSString *)imageName; 50 | 51 | /** 52 | 当不再使用时应该释放内存，并且把自己从全局的 PanoramaManager 中移除 53 | */ 54 | - (void)unloadImage; 55 | 56 | @end 57 | -------------------------------------------------------------------------------- /BSPanoramaView/BSPanoramaView.m: -------------------------------------------------------------------------------- 1 | // 2 | // BSPanoramaView.m 3 | // BSPanoramaView 4 | // 5 | // Created by 张星宇 on 11/15/17. 6 | // Copyright © 2017 bestswifter. All rights reserved. 7 | // 8 | 9 | #import "BSPanoramaView.h" 10 | 11 | @interface BSPanoramaView () 12 | 13 | #pragma -mark OpenGL 相关属性 14 | @property (nonatomic, assign) BOOL shouldUnload; /// 是否需要释放纹理的标记位 15 | @property (nonatomic, assign) int numIndices; /// 索引数 16 | @property (nonatomic, assign) GLuint vertexIndicesBufferID; /// 顶点索引缓存指针 17 | @property (nonatomic, assign) GLuint vertexBufferID; /// 顶点缓存指针 18 | @property (nonatomic, assign) GLuint vertexTexCoordID; /// 纹理缓存指针 19 | @property (nonatomic, strong) GLKBaseEffect *effect; /// 着色器 20 | 21 | #pragma -mark 手势相关属性 22 | @property (nonatomic, strong) UIPanGestureRecognizer *pan; /// 滑动手势 23 | @property (nonatomic, assign) CGFloat panX; /// 水平位移 24 | @property (nonatomic, assign) CGFloat panY; /// 垂直位移 25 | @property (nonatomic, strong) UIPinchGestureRecognizer *pinch; /// 缩放手势 26 | @property (nonatomic, assign) CGFloat scale; /// 缩放比例 27 | 28 | @end 29 | 30 | @implementation BSPanoramaView 31 | 32 | - (instancetype)initWithFrame:(CGRect)frame { 33 | self = [super initWithFrame:frame]; 34 | if (self) { 35 | self.enableSetNeedsDisplay = NO; 36 | [self setupOpenGL]; /// OpenGL 初始化设置 37 | [self addGestureRecognizer]; /// 添加手势 38 | } 39 | return self; 40 | } 41 | 42 | - (instancetype)initWithFrame:(CGRect)frame imageName:(NSString *)imageName { 43 | self = [self initWithFrame:frame]; 44 | if (self) { 45 | [self setImageWithName:imageName]; 46 | } 47 | return self; 48 | } 49 | 50 | - (void)dealloc { 51 | [self unloadImage]; 52 | } 53 | 54 | - (void)setImageWithName:(NSString *)imageName { 55 | self.shouldUnload = NO; 56 | /// 将图片转换成为纹理信息，由于OpenGL的默认坐标系设置在左下角, 而GLKit在左上角, 因此需要转换 57 | NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:YES], GLKTextureLoaderOriginBottomLeft, nil]; 58 | UIImage *textureImage = [UIImage imageNamed:imageName]; 59 | if (textureImage.size.height * textureImage.size.width > 4096.1f * 2048.1f) { 60 | return ; 61 | } 62 | GLKTextureLoader *loader = [[GLKTextureLoader alloc] initWithSharegroup:self.context.sharegroup]; 63 | [loader textureWithCGImage:textureImage.CGImage options:options queue:dispatch_get_main_queue() completionHandler:^(GLKTextureInfo * _Nullable textureInfo, NSError * _Nullable outError) { 64 | [[PanoramaManager sharedInstance] registerView:self]; 65 | if (self.shouldUnload) { // 因为是异步加载，所以需要考虑调用完 unloadImage 才加载成功的情况 66 | [[PanoramaManager sharedInstance] unRegisterView:self]; 67 | GLuint name = textureInfo.name; 68 | glDeleteTextures(1, &name); 69 | glDrawElements(GL_TRIANGLES, self.numIndices, GL_UNSIGNED_SHORT, 0); 70 | return ; 71 | } 72 | 73 | /// 设置着色器的纹理 74 | self.effect = [[GLKBaseEffect alloc] init]; 75 | self.effect.texture2d0.enabled = GL_TRUE; 76 | self.effect.texture2d0.name = textureInfo.name; 77 | }]; 78 | } 79 | 80 | - (void)unloadImage { 81 | self.shouldUnload = YES; 82 | [[PanoramaManager sharedInstance] unRegisterView:self]; 83 | 84 | GLuint name = self.effect.texture2d0.name; 85 | glDeleteTextures(1, &name); 86 | glDrawElements(GL_TRIANGLES, self.numIndices, GL_UNSIGNED_SHORT, 0); 87 | } 88 | 89 | - (void)setupOpenGL { 90 | self.context = [[EAGLContext alloc] initWithAPI:kEAGLRenderingAPIOpenGLES2]; 91 | [EAGLContext setCurrentContext:self.context]; 92 | 93 | /// 设置buffer 94 | GLfloat *vVertices = NULL; /// 顶点 95 | GLfloat *vTextCoord = NULL; /// 纹理 96 | GLushort *indices = NULL; /// 索引 97 | 98 | int numVertices = 0; 99 | self.numIndices = esGenSphere(100, 1.0, &vVertices, &vTextCoord, &indices, &numVertices); 100 | 101 | /// 索引 102 | glGenBuffers(1, &_vertexIndicesBufferID); 103 | glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, self.vertexIndicesBufferID); 104 | glBufferData(GL_ELEMENT_ARRAY_BUFFER, self.numIndices*sizeof(GLushort), indices, GL_STATIC_DRAW); 105 | 106 | /// 顶点数据 107 | glGenBuffers(1, &_vertexBufferID); 108 | glBindBuffer(GL_ARRAY_BUFFER, self.vertexBufferID); 109 | glBufferData(GL_ARRAY_BUFFER, numVertices*3*sizeof(GLfloat), vVertices, GL_STATIC_DRAW); 110 | glEnableVertexAttribArray(GLKVertexAttribPosition); /// 顶点位置属性 111 | glVertexAttribPointer(GLKVertexAttribPosition, 3, GL_FLOAT, GL_FALSE, sizeof(GLfloat)*3, NULL); 112 | 113 | /// 纹理数据 114 | glGenBuffers(1, &_vertexTexCoordID); 115 | glBindBuffer(GL_ARRAY_BUFFER, self.vertexTexCoordID); 116 | glBufferData(GL_ARRAY_BUFFER, numVertices*2*sizeof(GLfloat), vTextCoord, GL_STATIC_DRAW); 117 | glEnableVertexAttribArray(GLKVertexAttribTexCoord0); /// 纹理位置属性 118 | glVertexAttribPointer(GLKVertexAttribTexCoord0, 2, GL_FLOAT, GL_FALSE, sizeof(GLfloat)*2, NULL); 119 | } 120 | 121 | #pragma mark --- 生成球的几何结构---- 122 | // 参考：https://github.com/danginsburg/opengles-book-samples/blob/604a02cc84f9cc4369f7efe93d2a1d7f2cab2ba7/iPhone/Common/esUtil.h#L110 123 | int esGenSphere(int numSlices, float radius, float **vertices, 124 | float **texCoords, uint16_t **indices, int *numVertices_out) { 125 | int numParallels = numSlices / 2; 126 | int numVertices = (numParallels + 1) * (numSlices + 1); 127 | int numIndices = numParallels * numSlices * 6; 128 | float angleStep = (2.0f * 3.14159265358f) / ((float) numSlices); 129 | 130 | if (vertices != NULL) { 131 | *vertices = malloc(sizeof(float) * 3 * numVertices); 132 | } 133 | 134 | if (texCoords != NULL) { 135 | *texCoords = malloc(sizeof(float) * 2 * numVertices); 136 | } 137 | 138 | if (indices != NULL) { 139 | *indices = malloc(sizeof(uint16_t) * numIndices); 140 | } 141 | 142 | for (int i = 0; i < numParallels + 1; i++) { 143 | for (int j = 0; j < numSlices + 1; j++) { 144 | int vertex = (i * (numSlices + 1) + j) * 3; 145 | 146 | if (vertices) { 147 | (*vertices)[vertex + 0] = radius * sinf(angleStep * (float)i) * sinf(angleStep * (float)j); 148 | (*vertices)[vertex + 1] = radius * cosf(angleStep * (float)i); 149 | (*vertices)[vertex + 2] = radius * sinf(angleStep * (float)i) * cosf(angleStep * (float)j); 150 | } 151 | 152 | if (texCoords) { 153 | int texIndex = (i * (numSlices + 1) + j) * 2; 154 | (*texCoords)[texIndex + 0] = (float)j / (float)numSlices; 155 | (*texCoords)[texIndex + 1] = 1.0f - ((float)i / (float)numParallels); 156 | } 157 | } 158 | } 159 | 160 | // Generate the indices 161 | if (indices != NULL) { 162 | uint16_t *indexBuf = (*indices); 163 | for (int i = 0; i < numParallels ; i++) { 164 | for (int j = 0; j < numSlices; j++) { 165 | *indexBuf++ = i * (numSlices + 1) + j; 166 | *indexBuf++ = (i + 1) * (numSlices + 1) + j; 167 | *indexBuf++ = (i + 1) * (numSlices + 1) + (j + 1); 168 | 169 | *indexBuf++ = i * (numSlices + 1) + j; 170 | *indexBuf++ = (i + 1) * (numSlices + 1) + (j + 1); 171 | *indexBuf++ = i * (numSlices + 1) + (j + 1); 172 | } 173 | } 174 | } 175 | 176 | if (numVertices_out) { 177 | *numVertices_out = numVertices; 178 | } 179 | 180 | return numIndices; 181 | } 182 | 183 | #pragma mark 手势添加与识别 184 | - (void)addGestureRecognizer{ 185 | /// 平移手势 186 | self.pan =[[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panAction:)]; 187 | [self addGestureRecognizer:self.pan]; 188 | 189 | /// 捏合手势 190 | self.pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinchAction:)]; 191 | [self addGestureRecognizer:self.pinch]; 192 | self.scale = 1.428571f; 193 | } 194 | 195 | - (void)panAction:(UIPanGestureRecognizer *)pan { 196 | CGPoint point = [pan translationInView:self]; 197 | self.panX += point.x; 198 | self.panY += point.y; 199 | 200 | [pan setTranslation:CGPointZero inView:self]; //每次变换之后, 把改变值归零 201 | } 202 | 203 | - (void)pinchAction:(UIPinchGestureRecognizer *)pinch { 204 | self.scale *= pinch.scale; 205 | pinch.scale = 1.0; 206 | } 207 | 208 | #pragma mark 绘制 209 | - (void)drawRect:(CGRect)rect { 210 | [self update]; 211 | [self.effect prepareToDraw]; 212 | 213 | glClearColor(1.0f, 1.0f, 1.0f, 1.0f); 214 | glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); 215 | glDrawElements(GL_TRIANGLES, self.numIndices, GL_UNSIGNED_SHORT, 0); 216 | } 217 | 218 | - (void)update{ 219 | CGSize size = self.bounds.size; 220 | float aspect = fabs(size.width / size.height); 221 | 222 | /** 223 | * 根据缩放比例, 设置焦距 224 | */ 225 | CGFloat ovyRadians = 100 / self.scale; 226 | 227 | // ovyRadians 不小于 50, 不大于 120; 228 | if (ovyRadians < 50) { 229 | ovyRadians = 50; 230 | self.scale = 1 / (50.0 / 100); 231 | } 232 | if (ovyRadians > 120) { 233 | ovyRadians = 120; 234 | self.scale = 1 / (120.0 / 100); 235 | } 236 | 237 | /**GLKMatrix4MakePerspective 配置透视图 238 | 第一个参数, 类似于相机的焦距, 比如10表示窄角度, 100表示广角 一般65-75; 239 | 第二个参数: 表示时屏幕的纵横比 240 | 第三个, 第四参数: 是为了实现透视效果, 近大远处小, 要确保模型位于远近平面之间 241 | */ 242 | 243 | GLKMatrix4 projectionMatrix = GLKMatrix4MakePerspective(GLKMathDegreesToRadians(ovyRadians), aspect, 0.1f, 400.0f); 244 | projectionMatrix = GLKMatrix4Scale(projectionMatrix, -1.0f, 1.0f, 1.0f); 245 | 246 | GLKMatrix4 rotation = GLKMatrix4MakeWithQuaternion([PanoramaManager sharedInstance].lastQuaternion); 247 | 248 | projectionMatrix = GLKMatrix4RotateX(projectionMatrix, -0.005*self.panY); 249 | projectionMatrix = GLKMatrix4Multiply(projectionMatrix, rotation); 250 | 251 | /// 为了保证在水平放置手机的时候, 是从下往上看, 因此首先坐标系沿着x轴旋转90度 252 | projectionMatrix = GLKMatrix4RotateX(projectionMatrix, M_PI_2); 253 | self.effect.transform.projectionMatrix = projectionMatrix; 254 | 255 | GLKMatrix4 modelViewMatrix = GLKMatrix4Identity; 256 | modelViewMatrix = GLKMatrix4RotateY(modelViewMatrix, 0.005*self.panX); 257 | self.effect.transform.modelviewMatrix = modelViewMatrix; 258 | } 259 | 260 | @end 261 | 262 | @interface PanoramaManager() 263 | 264 | @property (nonatomic, strong) NSHashTable *panoViews; 265 | @property (nonatomic, strong) CMMotionManager *motionManager; 266 | 267 | @end 268 | 269 | @implementation PanoramaManager 270 | 271 | + (PanoramaManager *)sharedInstance { 272 | static PanoramaManager *panoramaManager = nil; 273 | static dispatch_once_t onceToken; 274 | dispatch_once(&onceToken, ^{ 275 | panoramaManager = [[PanoramaManager alloc] init]; 276 | }); 277 | return panoramaManager; 278 | } 279 | 280 | - (instancetype)init { 281 | self = [super init]; 282 | if (self) { 283 | _motionManager = [[CMMotionManager alloc] init]; 284 | _motionManager.deviceMotionUpdateInterval = 1.0 / 60.0; //设置运动更新间隔 285 | _motionManager.showsDeviceMovementDisplay = YES; // 是否展示运动 286 | [_motionManager startDeviceMotionUpdatesUsingReferenceFrame:CMAttitudeReferenceFrameXArbitraryCorrectedZVertical]; 287 | 288 | _panoViews = [[NSHashTable alloc] initWithOptions:NSHashTableWeakMemory capacity:2]; 289 | 290 | CADisplayLink* displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(display:)]; 291 | [displayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:NSDefaultRunLoopMode]; 292 | } 293 | return self; 294 | } 295 | 296 | - (void)registerView:(BSPanoramaView *)view { 297 | [self.panoViews addObject:view]; 298 | } 299 | 300 | - (void)unRegisterView:(BSPanoramaView *)view { 301 | if ([self.panoViews containsObject:view]) { 302 | [self.panoViews removeObject:view]; 303 | } 304 | } 305 | 306 | - (void)display:(CADisplayLink *)displayLink { 307 | if (self.motionManager) { // 从后台回到前台时，CoreMotion 可能还没有工作，这里会拿到空的四元数，导致渲染失败 308 | CMDeviceMotion *deviceMotion = self.motionManager.deviceMotion; 309 | 310 | double w = deviceMotion.attitude.quaternion.w; 311 | double wx = deviceMotion.attitude.quaternion.x; 312 | double wy = deviceMotion.attitude.quaternion.y; 313 | double wz = deviceMotion.attitude.quaternion.z; 314 | self.lastQuaternion = GLKQuaternionMake(-wx, wy, wz, w); 315 | } 316 | 317 | #if TARGET_OS_SIMULATOR 318 | self.lastQuaternion = GLKQuaternionMake(0, 0, 1, 1); // 为模拟器提供假的传感器数据 319 | #endif 320 | 321 | for (BSPanoramaView *view in self.panoViews) { 322 | if (view) { 323 | [view display]; 324 | } 325 | } 326 | } 327 | 328 | @end 329 | -------------------------------------------------------------------------------- /BSPanoramaView/Base.lproj/LaunchScreen.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | -------------------------------------------------------------------------------- /BSPanoramaView/Base.lproj/Main.storyboard: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | -------------------------------------------------------------------------------- /BSPanoramaView/Info.plist: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | CFBundleDevelopmentRegion 6 | $(DEVELOPMENT_LANGUAGE) 7 | CFBundleExecutable 8 | $(EXECUTABLE_NAME) 9 | CFBundleIdentifier 10 | $(PRODUCT_BUNDLE_IDENTIFIER) 11 | CFBundleInfoDictionaryVersion 12 | 6.0 13 | CFBundleName 14 | $(PRODUCT_NAME) 15 | CFBundlePackageType 16 | APPL 17 | CFBundleShortVersionString 18 | 1.0 19 | CFBundleVersion 20 | 1 21 | LSRequiresIPhoneOS 22 | 23 | UILaunchStoryboardName 24 | LaunchScreen 25 | UIMainStoryboardFile 26 | Main 27 | UIRequiredDeviceCapabilities 28 | 29 | armv7 30 | 31 | UISupportedInterfaceOrientations 32 | 33 | UIInterfaceOrientationPortrait 34 | UIInterfaceOrientationLandscapeLeft 35 | UIInterfaceOrientationLandscapeRight 36 | 37 | UISupportedInterfaceOrientations~ipad 38 | 39 | UIInterfaceOrientationPortrait 40 | UIInterfaceOrientationPortraitUpsideDown 41 | UIInterfaceOrientationLandscapeLeft 42 | UIInterfaceOrientationLandscapeRight 43 | 44 | 45 | 46 | -------------------------------------------------------------------------------- /BSPanoramaView/PanoTableViewCell.h: -------------------------------------------------------------------------------- 1 | // 2 | // PanoTableViewCell.h 3 | // 全景_图片 4 | // 5 | // Created by 张星宇 on 11/14/17. 6 | // Copyright © 2017 H. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface PanoTableViewCell : UITableViewCell 12 | 13 | - (void)willBeDisplayed:(NSUInteger)index; 14 | - (void)didStopDisplayed:(NSUInteger)index; 15 | 16 | @end 17 | -------------------------------------------------------------------------------- /BSPanoramaView/PanoTableViewCell.m: -------------------------------------------------------------------------------- 1 | // 2 | // PanoTableViewCell.m 3 | // 全景_图片 4 | // 5 | // Created by 张星宇 on 11/14/17. 6 | // Copyright © 2017 H. All rights reserved. 7 | // 8 | 9 | #import "PanoTableViewCell.h" 10 | #import "BSPanoramaView.h" 11 | 12 | #define kPanoViewInterval 4 13 | 14 | @interface PanoTableViewCell() 15 | 16 | @property (nonatomic, strong) BSPanoramaView *panoView; 17 | 18 | @end 19 | 20 | @implementation PanoTableViewCell 21 | 22 | - (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier { 23 | self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]; 24 | if (self) { 25 | CGRect rect = CGRectMake(0, 0, [[UIScreen mainScreen] bounds].size.width, 300); 26 | self.panoView = [[BSPanoramaView alloc] initWithFrame:rect]; 27 | [self.contentView addSubview:self.panoView]; 28 | } 29 | return self; 30 | } 31 | 32 | - (void)setSelected:(BOOL)selected animated:(BOOL)animated { 33 | [super setSelected:selected animated:animated]; 34 | } 35 | 36 | - (void)willBeDisplayed:(NSUInteger)index { 37 | [self.panoView setImageWithName:@"test"]; 38 | } 39 | 40 | - (void)didStopDisplayed:(NSUInteger)index { 41 | [self.panoView unloadImage]; 42 | } 43 | 44 | @end 45 | -------------------------------------------------------------------------------- /BSPanoramaView/SinglePanoViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // TableviewTestViewController.h 3 | // BSPanoramaView 4 | // 5 | // Created by 张星宇 on 11/15/17. 6 | // Copyright © 2017 bestswifter. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface SinglePanoViewController : UIViewController 12 | 13 | @end 14 | -------------------------------------------------------------------------------- /BSPanoramaView/SinglePanoViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // TableviewTestViewController.m 3 | // BSPanoramaView 4 | // 5 | // Created by 张星宇 on 11/15/17. 6 | // Copyright © 2017 bestswifter. All rights reserved. 7 | // 8 | 9 | #import "SinglePanoViewController.h" 10 | #import "BSPanoramaView.h" 11 | 12 | @interface SinglePanoViewController () 13 | 14 | @end 15 | 16 | @implementation SinglePanoViewController 17 | 18 | - (void)viewDidLoad { 19 | [super viewDidLoad]; 20 | self.view.backgroundColor = [UIColor whiteColor]; 21 | 22 | CGRect panoRect = CGRectMake(0, 64, self.view.bounds.size.width, self.view.bounds.size.height- 64); 23 | BSPanoramaView *panoView = [[BSPanoramaView alloc] initWithFrame:panoRect imageName:@"test"]; 24 | [self.view addSubview:panoView]; 25 | } 26 | 27 | - (void)didReceiveMemoryWarning { 28 | [super didReceiveMemoryWarning]; 29 | // Dispose of any resources that can be recreated. 30 | } 31 | 32 | /* 33 | #pragma mark - Navigation 34 | 35 | // In a storyboard-based application, you will often want to do a little preparation before navigation 36 | - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender { 37 | // Get the new view controller using [segue destinationViewController]. 38 | // Pass the selected object to the new view controller. 39 | } 40 | */ 41 | 42 | @end 43 | -------------------------------------------------------------------------------- /BSPanoramaView/TablePanoViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // TablePanoViewController.h 3 | // BSPanoramaView 4 | // 5 | // Created by 张星宇 on 11/15/17. 6 | // Copyright © 2017 bestswifter. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface TablePanoViewController : UIViewController 12 | 13 | @end 14 | -------------------------------------------------------------------------------- /BSPanoramaView/TablePanoViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // TablePanoViewController.m 3 | // BSPanoramaView 4 | // 5 | // Created by 张星宇 on 11/15/17. 6 | // Copyright © 2017 bestswifter. All rights reserved. 7 | // 8 | 9 | #import "TablePanoViewController.h" 10 | #import "PanoTableViewCell.h" 11 | 12 | @interface TablePanoViewController () 13 | 14 | @end 15 | 16 | @implementation TablePanoViewController 17 | 18 | - (void)viewDidLoad { 19 | [super viewDidLoad]; 20 | 21 | UITableView *tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, 414, 736)]; 22 | tableView.delegate = self; 23 | tableView.dataSource = self; 24 | 25 | tableView.estimatedRowHeight = 736; 26 | [self.view addSubview:tableView]; 27 | } 28 | 29 | - (void)didReceiveMemoryWarning { 30 | [super didReceiveMemoryWarning]; 31 | // Dispose of any resources that can be recreated. 32 | } 33 | - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { 34 | return 60; 35 | } 36 | 37 | - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { 38 | if (indexPath.row % 4 == 3) { 39 | PanoTableViewCell *cell = (PanoTableViewCell *)[tableView dequeueReusableCellWithIdentifier:@"PanoTableViewCell"]; 40 | if (!cell) { 41 | cell = [[PanoTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"PanoTableViewCell"]; 42 | } 43 | return cell; 44 | } 45 | else { 46 | UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"UITableViewCell"]; 47 | if (!cell) { 48 | cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"UITableViewCell"]; 49 | cell.textLabel.text = [NSString stringWithFormat:@"%ld", (long)indexPath.row]; 50 | cell.contentView.backgroundColor = [UIColor grayColor]; 51 | } 52 | return cell; 53 | } 54 | } 55 | 56 | - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath { 57 | return 300; 58 | } 59 | 60 | - (void)tableView:(UITableView *)tableView willDisplayCell:(nonnull UITableViewCell *)cell forRowAtIndexPath:(nonnull NSIndexPath *)indexPath { 61 | if ([cell isKindOfClass:[PanoTableViewCell class]]) { 62 | PanoTableViewCell *panoCell = (PanoTableViewCell *)cell; 63 | [panoCell willBeDisplayed:indexPath.row]; 64 | } 65 | } 66 | 67 | - (void)tableView:(UITableView *)tableView didEndDisplayingCell:(nonnull UITableViewCell *)cell forRowAtIndexPath:(nonnull NSIndexPath *)indexPath { 68 | if ([cell isKindOfClass:[PanoTableViewCell class]]) { 69 | PanoTableViewCell *panoCell = (PanoTableViewCell *)cell; 70 | [panoCell didStopDisplayed:indexPath.row]; 71 | } 72 | } 73 | 74 | @end 75 | -------------------------------------------------------------------------------- /BSPanoramaView/ViewController.h: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.h 3 | // BSPanoramaView 4 | // 5 | // Created by 张星宇 on 11/15/17. 6 | // Copyright © 2017 bestswifter. All rights reserved. 7 | // 8 | 9 | #import 10 | 11 | @interface ViewController : UIViewController 12 | 13 | 14 | @end 15 | 16 | -------------------------------------------------------------------------------- /BSPanoramaView/ViewController.m: -------------------------------------------------------------------------------- 1 | // 2 | // ViewController.m 3 | // BSPanoramaView 4 | // 5 | // Created by 张星宇 on 11/15/17. 6 | // Copyright © 2017 bestswifter. All rights reserved. 7 | // 8 | 9 | #import "ViewController.h" 10 | 11 | #import "TablePanoViewController.h" 12 | #import "SinglePanoViewController.h" 13 | 14 | @interface ViewController () 15 | 16 | @end 17 | 18 | @implementation ViewController 19 | 20 | - (void)viewDidLoad { 21 | [super viewDidLoad]; 22 | self.view.backgroundColor = [UIColor whiteColor]; 23 | 24 | UIButton *jumpToSingleButton = [UIButton buttonWithType:UIButtonTypeCustom]; 25 | jumpToSingleButton.frame = CGRectMake(50, 200 + 10, [UIScreen mainScreen].bounds.size.width - 100, 40); 26 | [jumpToSingleButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; 27 | [jumpToSingleButton setBackgroundColor:[UIColor grayColor]]; 28 | [jumpToSingleButton setTitle:@"测试单个全景图" forState:UIControlStateNormal]; 29 | [jumpToSingleButton addTarget:self action:@selector(navigateToSinglePanoView:) forControlEvents:UIControlEventTouchUpInside]; 30 | [self.view addSubview:jumpToSingleButton]; 31 | 32 | UIButton *jumpToMultiButton = [UIButton buttonWithType:UIButtonTypeCustom]; 33 | jumpToMultiButton.frame = CGRectMake(50, 300 + 10, [UIScreen mainScreen].bounds.size.width - 100, 40); 34 | [jumpToMultiButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal]; 35 | [jumpToMultiButton setBackgroundColor:[UIColor grayColor]]; 36 | [jumpToMultiButton setTitle:@"在 UITableview 中测试" forState:UIControlStateNormal]; 37 | [jumpToMultiButton addTarget:self action:@selector(navigateToMultiPanoView:) forControlEvents:UIControlEventTouchUpInside]; 38 | [self.view addSubview:jumpToMultiButton]; 39 | } 40 | 41 | - (void)navigateToSinglePanoView:(id)sender { 42 | [self.navigationController pushViewController:[SinglePanoViewController new] animated:YES]; 43 | } 44 | 45 | - (void)navigateToMultiPanoView:(id)sender { 46 | [self.navigationController pushViewController:[TablePanoViewController new] animated:YES]; 47 | } 48 | 49 | - (void)didReceiveMemoryWarning { 50 | [super didReceiveMemoryWarning]; 51 | // Dispose of any resources that can be recreated. 52 | } 53 | 54 | @end 55 | -------------------------------------------------------------------------------- /BSPanoramaView/main.m: -------------------------------------------------------------------------------- 1 | // 2 | // main.m 3 | // BSPanoramaView 4 | // 5 | // Created by 张星宇 on 11/15/17. 6 | // Copyright © 2017 bestswifter. All rights reserved. 7 | // 8 | 9 | #import 10 | #import "AppDelegate.h" 11 | 12 | int main(int argc, char * argv[]) { 13 | @autoreleasepool { 14 | return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class])); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /Chinese.md: -------------------------------------------------------------------------------- 1 | # BSPanoramaView 2 | 3 | BSPanoramaView 是 iOS 平台上一个轻量的全景图组件，**它不依赖任何第三方框架，仅有 300 多行代码，最终的包大小只会增加 30Kb 左右。** 4 | 5 | ![](./BSPanorama.gif) 6 | 7 | 由于录制屏幕的原因，横屏效果无法展示，在真机上会有更好的用户体验。 8 | 9 | BSPanoramaView 从 [WushuputiGH/Panorama](https://github.com/WushuputiGH/Panorama) 这个 Repo 中借鉴了很多 OpenGL 相关的运算，主要涉及模型生成以及矩阵变换。 10 | 11 | BSPanoramaView 重构了整个应用层并且修复了几个重大的 bug，因此基本上可以投入生产环境使用。可能是因为没有正式测试的原因，目前没有发现明显的问题。如果你的项目对性能和稳定性的要求不是变态级别的，可以考虑使用 BSPanoramaView 或者在此基础上略作修改。 12 | 13 | # 使用方法 14 | 15 | `BSPanoramaView` 是 `GLKView` 的子类，而后者又是 `UIView` 的子类，所以可以直接把 `BSPanoramaView` 当成一个普通的 `UIView` 来使用，比如： 16 | 17 | ```objc 18 | #import "BSPanoramaView.h" 19 | 20 | - (void)viewDidLoad { 21 | [super viewDidLoad]; 22 | 23 | BSPanoramaView *panoView = [[BSPanoramaView alloc] initWithFrame:self.view.bounds imageName:@"test"]; 24 | [self.view addSubview:panoView]; 25 | } 26 | ``` 27 | 28 | OpenGL 的纹理，也就是图片，相当占用内存。以一张 4096 * 2048 的图片为例，它会占用 `4096 * 2048 * 4 / 1024 / 1024 = 32M` 的内存，这个虽然难以避免但我们应该对此保持警惕，尽可能及时的释放它。当 `BSPanoramaView` 的实例被释放时，它的 `dealloc` 函数会调用 `unloadImage` 方法释放内存： 29 | 30 | ```objc 31 | - (void)dealloc { 32 | [self unloadImage]; 33 | } 34 | ``` 35 | 36 | 在这种情况下，内存管理对使用者是透明的，无需额外的关注。但如果在 `UITableview` 中使用了 BSPanoramaView，由于 cell 会被重用，因此在 cell 滑出屏幕外时，需要手动调用 `unloadImage` 方法，这在 Demo 的 `PanoTableViewCell` 类中有具体的代码。 37 | 38 | # 安装方法 39 | 40 | 由于整个项目只有两个文件，所以直接拖到工程里也是可以的。然而 BSPanoramaView 还处于不稳定的版本，随时会有更新来修复 bug 或者新增功能，所以我的建议是使用 Cocoapods： 41 | 42 | ``` 43 | pod 'BSPanoramaView' 44 | ``` 45 | 46 | # 原理介绍 47 | 48 | 就像把大象放进箱子里需要三步一样，全景图控件并非系统提供，也需要以下几个步骤： 49 | 50 | 1. 生成一个球，这个球是由多个三角形近似拼接起来的，三角形的顶点就是 OpenGL 中的顶点数组对象（VBO） 51 | 2. 想象一下两个三角形可以拼成一个矩形，用三角形表示的话需要六个点，但实际上矩形只要四个点，这是因为有两个点被重复了，导致浪费了一些内存空间，这时候我们定义一个四个顶点的数组，然后用数组下标来表示顶点，再多的顶点也不会增加多少内存占用，这叫索引缓冲对象（IBO） 52 | 3. 有了顶点数组对象和索引缓冲对象以后，OpenGL 就可以画出一个球了，接来下的任务就是加载纹理，也就是图片，并且把纹理贴到球上。 53 | 54 | 以上基本上就是 OpenGL 的绘制过程，对 OpenGL 完全不了解的同学可以参考[这篇文章](https://learnopengl-cn.github.io/01%20Getting%20started/04%20Hello%20Triangle/) 简单的学习一下。在 `BSPanoramaView` 中，由于不考虑多平台兼容，所以使用了 OC 的 GLKit，它是对 OpenGL 的封装，提供了很多有效的函数。 55 | 56 | `BSPanoramaView` 中的 `setupOpenGL` 方法就是处理这个问题的。 57 | 58 | ## 定时绘制 59 | 60 | OpenGL 需要我们手动管理绘制，也就是一秒钟绘制 60 帧，这可以通过 `CADisplayLink` 实现。 61 | 62 | 不管是设备的晃动还是手势拖拽，最终都会以变换矩阵的形式呈现，应用到 OpenGL 中并且改变我们看到的结果。 63 | 64 | 考虑到多个 `BSPanoramaView` 实例有可能同时存在，为了避免性能损耗，我使用了单例的 `PanoramaManager` 负责获取设备的位移信息，并且注册了 `CADisplayLink` 负责定时绘制。 65 | 66 | 每个 `BSPanoramaView` 都会把自己注册到 manager 的弱引用数组中，这样可以确保自己的绘制方法每 1/60 秒都会被调用一次。同样的，`BSPanoramaView` 也不会访问设备的位置信息，而是由单例的 manager 获取一次，然后分发给多个实例。 67 | 68 | ## 传感器信息 69 | 70 | 传统的描述位置信息的方法是欧拉角，它由三个角度（横滚、偏航、俯仰）组成，然而欧拉角的最大问题是万向节死锁，导致角度错乱。因此在 iOS 上我们使用四元数避免上述问题，而且通过 GLKit 的 `GLKMatrix4MakeWithQuaternion` 函数直接转换成变换矩阵。 71 | 72 | 为了兼容模拟器，我构造了一个固定的四元数。 73 | 74 | ## 矩阵变换 75 | 76 | 无论是滑动手势还是缩放手势，最终都会转换成矩阵运算，从[WushuputiGH/Panorama](https://github.com/WushuputiGH/Panorama) 中抄来的代码虽然看起来格式不太正确，但工作起来却意外的毫无问题，暂时没有调整的计划。 77 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. 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If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # BSPanoramaView 2 | 3 | 中文文档请阅读[这里](./Chinese.md) 4 | 5 | ![](./BSPanorama.gif) 6 | 7 | Due to the limitation of recording screen, the actual experience on real device is much better the gif shown above. 8 | 9 | BSPanoramaView is a lightweight panorama picture browser on iOS platform, which will only make the binary file 30k larger. 10 | 11 | BSPanoramaView does not rely on any other third party framework and it only contains about three hundred lines of code. 12 | 13 | BSPanoramaView was inspired by [WushuputiGH/Panorama](https://github.com/WushuputiGH/Panorama) and copied some calculations about OpenGL but rewrote the application architecture and fixed many bugs. 14 | 15 | At current time, BSPanoramaView can be applied in production environment if you are tolerant of some tiny defects. 16 | 17 | # Usage 18 | 19 | BSPanoramaView is the subclass of `GLKView` which itself is a subclass of `UIView`, so you can use BSPanoramaView as a normal view: 20 | 21 | ```objc 22 | #import "BSPanoramaView.h" 23 | 24 | - (void)viewDidLoad { 25 | [super viewDidLoad]; 26 | 27 | BSPanoramaView *panoView = [[BSPanoramaView alloc] initWithFrame:self.view.bounds imageName:@"test"]; 28 | [self.view addSubview:panoView]; 29 | } 30 | ``` 31 | 32 | The texture(test.png) takes a lot of memory. For example, an picture with resolution of 4096 * 20148 takes 32M memory which means you should be careful about the memory occupation. 33 | 34 | When the instance of BSPanoramaView is released, it will unload the texture in `dealloc` method and you don't need to pay any extra attention to this: 35 | 36 | ```objc 37 | - (void)dealloc { 38 | [self unloadImage]; 39 | } 40 | ``` 41 | 42 | However, if it is not released, such as scrolling outside the screen, you should be careful to call `unloadImage` method manually at proper time. This is also demostrated in the code in `PanoTableViewCell` class. 43 | 44 | # Installation 45 | 46 | You can just copy the source code into your project because there are only two files. 47 | 48 | However, since this is a beta-version code which may be optimized constantly, I strongly encourage you to use **Cocoapods**: 49 | 50 | ``` 51 | pod 'BSPanoramaView' 52 | ``` 53 | --------------------------------------------------------------------------------