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项目在 Archive 打包后，生成ipa包 然后显示改文件的包内容： 解压 Assets.car 文件的方式： 方法一、 插件 AssetCatalogTinkerer下载插件 AssetCatalogTinkerer ，用【My Mac】模拟器运行，然后 Assets.car 使用 AssetCatalogTinkerer 打开 ，如下图： 下载插件 cartool ，用【My Mac】模拟器运行，这时候会报错，替换main.m文件内容，如下： // // main.m // cartool // // Created by Steven Troughton-Smith on 14/07/2013. // Copyright (c) 2013 High Caffeine Content. All rights reserved. // #import #import typedef enum _kCoreThemeIdiom { kCoreThemeIdiomUniversal, kCoreThemeIdiomPhone, kCoreThemeIdiomPad, kCoreThemeIdiomTV, kCoreThemeIdiomCar, kCoreThemeIdiomWatch, kCoreThemeIdiomMarketing } kCoreThemeIdiom; typedef NS_ENUM(NSInteger, UIUserInterfaceSizeClass) { UIUserInterfaceSizeClassUnspecified = 0, UIUserInterfaceSizeClassCompact = 1, UIUserInterfaceSizeClassRegular = 2, }; @interface CUICommonAssetStorage : NSObject -(NSArray *)allAssetKeys; -(NSArray *)allRenditionNames; -(id)initWithPath:(NSString *)p; -(NSString *)versionString; @end @interface CUINamedImage : NSObject @property(readonly) CGSize size; @property(readonly) CGFloat scale; @property(readonly) kCoreThemeIdiom idiom; @property(readonly) UIUserInterfaceSizeClass sizeClassHorizontal; @property(readonly) UIUserInterfaceSizeClass sizeClassVertical; -(CGImageRef)image; @end @interface CUIRenditionKey : NSObject @end @interface CUIThemeFacet : NSObject +(CUIThemeFacet *)themeWithContentsOfURL:(NSURL *)u error:(NSError **)e; @end @interface CUICatalog : NSObject @property(readonly) bool isVectorBased; -(id)initWithURL:(NSURL *)URL error:(NSError **)error; -(id)initWithName:(NSString *)n fromBundle:(NSBundle *)b; -(id)allKeys; -(id)allImageNames; -(CUINamedImage *)imageWithName:(NSString *)n scaleFactor:(CGFloat)s; -(CUINamedImage *)imageWithName:(NSString *)n scaleFactor:(CGFloat)s deviceIdiom:(int)idiom; -(NSArray *)imagesWithName:(NSString *)n; @end void CGImageWriteToFile(CGImageRef image, NSString *path) { CFURLRef url = (__bridge CFURLRef)[NSURL fileURLWithPath:path]; CGImageDestinationRef destination = CGImageDestinationCreateWithURL(url, kUTTypePNG, 1, NULL); CGImageDestinationAddImage(destination, image, nil); if (!CGImageDestinationFinalize(destination)) { NSLog(@"Failed to write image to %@", path); } CFRelease(destination); } NSString *idiomSuffixForCoreThemeIdiom(kCoreThemeIdiom idiom) { switch (idiom) { case kCoreThemeIdiomUniversal: return @""; break; case kCoreThemeIdiomPhone: return @"~iphone"; break; case kCoreThemeIdiomPad: return @"~ipad"; break; case kCoreThemeIdiomTV: return @"~tv"; break; case kCoreThemeIdiomCar: return @"~carplay"; break; case kCoreThemeIdiomWatch: return @"~watch"; break; case kCoreThemeIdiomMarketing: return @"~marketing"; break; default: break; } return @""; } NSString *sizeClassSuffixForSizeClass(UIUserInterfaceSizeClass sizeClass) { switch (sizeClass) { case UIUserInterfaceSizeClassCompact: return @"C"; break; case UIUserInterfaceSizeClassRegular: return @"R"; break; default: return @"A"; } } NSMutableArray *getImagesArray(CUICatalog *catalog, NSString *key) { NSMutableArray *images = [[NSMutableArray alloc] initWithCapacity:5]; for (NSNumber *scaleFactor in @[@1, @2, @3]) { CUINamedImage *image = [catalog imageWithName:key scaleFactor:scaleFactor.doubleValue]; if (image && image.scale == scaleFactor.floatValue) [images addObject:image]; } return images; } void exportCarFileAtPath(NSString * carPath, NSString *outputDirectoryPath) { NSError *error = nil; outputDirectoryPath = [outputDirectoryPath stringByExpandingTildeInPath]; // CUIThemeFacet *facet = [CUIThemeFacet themeWithContentsOfURL:[NSURL fileURLWithPath:carPath] error:&error]; // // CUICatalog *catalog = [[CUICatalog alloc] init]; // 替换成以下代码 CUICatalog *catalog = nil; if ([CUICatalog instancesRespondToSelector:@selector(initWithURL:error:)]) { /* If CUICatalog has the URL API (Mojave), use it. */ catalog = [[CUICatalog alloc] initWithURL:[NSURL fileURLWithPath:carPath] error:&error]; } else { CUIThemeFacet *facet = [CUIThemeFacet themeWithContentsOfURL:[NSURL fileURLWithPath:carPath] error:&error]; catalog = [[CUICatalog alloc] init]; /* Override CUICatalog to point to a file rather than a bundle */ [catalog setValue:facet forKey:@"_storageRef"]; } /* Override CUICatalog to point to a file rather than a bundle */ // [catalog setValue:facet forKey:@"_storageRef"]; /* CUICommonAssetStorage won't link */ CUICommonAssetStorage *storage = [[NSClassFromString(@"CUICommonAssetStorage") alloc] initWithPath:carPath]; for (NSString *key in [storage allRenditionNames]) { printf("%s\n", [key UTF8String]); NSArray* pathComponents = [key pathComponents]; if (pathComponents.count > 1) { // Create subdirectories for namespaced assets (those with names like "some/namespace/image-name") NSArray* subdirectoryComponents = [pathComponents subarrayWithRange:NSMakeRange(0, pathComponents.count - 1)]; NSString* subdirectoryPath = [outputDirectoryPath copy]; for (NSString* pathComponent in subdirectoryComponents) { subdirectoryPath = [subdirectoryPath stringByAppendingPathComponent:pathComponent]; } [[NSFileManager defaultManager] createDirectoryAtPath:subdirectoryPath withIntermediateDirectories:YES attributes:nil error:&error]; } NSMutableArray *images = getImagesArray(catalog, key); for( CUINamedImage *image in images ) { if( CGSizeEqualToSize(image.size, CGSizeZero) ) printf("\tnil image?\n"); else { CGImageRef cgImage = [image image]; NSString *idiomSuffix = idiomSuffixForCoreThemeIdiom(image.idiom); NSString *sizeClassSuffix = @""; if (image.sizeClassHorizontal || image.sizeClassVertical) { sizeClassSuffix = [NSString stringWithFormat:@"-%@x%@", sizeClassSuffixForSizeClass(image.sizeClassHorizontal), sizeClassSuffixForSizeClass(image.sizeClassVertical)]; } NSString *scale = image.scale > 1.0 ? [NSString stringWithFormat:@"@%dx", (int)floor(image.scale)] : @""; NSString *name = [NSString stringWithFormat:@"%@%@%@%@.png", key, idiomSuffix, sizeClassSuffix, scale]; printf("\t%s\n", [name UTF8String]); if( outputDirectoryPath ) CGImageWriteToFile(cgImage, [outputDirectoryPath stringByAppendingPathComponent:name]); } } } } int main(int argc, const char * argv[]) { @autoreleasepool { if (argc 2 ? [NSString stringWithUTF8String:argv[2]] : nil); } return 0; }然后修改 Edit Scheme ，如下：
2.解压后的资源存在的路径，这里是一个文件夹路径，我是在桌面创建一个名为img的文件夹，所以路径为： /Users/xxx/Desktop/img替换完main.m文件，设置好路径后就可以运行该项目，然后可以看到控制台一直在输出内容，解压完成后，可以查看 img 文件夹里面解压后的资源图片 ： |
将 xxx.ipa文件修改为zip后缀即 xxx.zip ，然后再双击解压，会生成一个 Payload 文件夹，里面一个文件 如下图： 
可以选择到处一张图片，也可选择到处所有图片： 
设置好两个路径： 1.Assert.car文件的路径，我是放在桌面的上的，所以路径为：
我们项目中是用的是 pdf 矢量图，所以打包后会自动生成 @1x、@2x、@3x图片，已适配不同分辨率的机型。【本文地址】
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