, state: appeared, view: | , state: appeared, view: || , state: disappeared, view: not in the window || , state: appeared, view:

; layer = > | > || > ||| > |||| > ...... ||||||| <_UIVisualEffectContentView: 0x7fd9fd7052f0; frame = (0 0; 371 48); autoresize = W+H; tintColor = UIExtendedGrayColorSpace 1 1; layer = > disablesGroupFiltering |||||| > |||||| >

Print the recursion description of .Expects 'raw' input (see 'help raw-input'.)Syntax: pviews Print the recursion description of .Arguments: ; Type: UIView*/NSView*; The view to print the description of.Options: --up/-u ; Print only the hierarchy directly above the view, up to its window. --depth/-d ; Type: int; Print only to a given depth. 0 indicates infinite depth. --window/-w ; Type: int; Specify the window to print a description of. Check which windows exist with "po (id)[[UIApplication sharedApplication] windows]". --short/-s ; Print a short description of the view --medium/-m ; Print a medium description of the viewSyntax: pviews [--up] [--depth=depth] [--window=window] [--short] [--medium]This command is implemented as FBPrintViewHierarchyCommand in /Users/yanghu/chisel/commands/FBPrintCommands.py.

| || | || | || | ||

visualize 0x7fda0000e7f0

0x7fda02001140 EnumerateDemoViewController

0x7fda0000d8c0 UIButton 0x7fd9fd40d0b0 UIButtonLabel 0x7fda0000e7f0 UIButton 0x7fd9fd40ce20 UIButtonLabel 0x7fda0000ea90 UIButton 0x7fd9fd40cb90 UIButtonLabel 0x7fda0000ed30 UIButton 0x7fd9fd40c6f0 UIButtonLabel 0x7fda00013880 _UIButtonBarButton 0x7fda000153e0 UIButtonLabel

e (void)[0x7fda0000d8c0 setBackgroundColor:[UIColor redColor]] caflush

border 0x7fda0000e7f0 -c 'blue' -w 5 caflush

unborder 0x7fda0000e7f0 caflush

> | > || ||| > |||| > ||||| ; layer = > |||||| ||||||| > |||||||| > ||||||||| > |||||||||| ||||||||||| > |||||||||||| > ||||||||||||| ; layer = > |||||||||||||| ; persistentIdentifier = B5525011-A1BC-40F3-AFB4-D8A8187B7102; activationState = UISceneActivationStateForegroundActive; settingsCanvas = ; windows = ( "; layer = >", ">" )> ||||||||||||||| ||||||||||||||||

bmessage "-[EnumerateDemoViewController viewDidAppear:]"

1. 新建 Python 文件 , 例 /path/to/test.py
2. 添加 script fblldb.loadCommandsInDirectory('/path/to/') 到 ~/.lldbinit 文件中。注意：/path/to/ 要使用绝对路径，否则会报错。
3. 重启 Xcode 或者 在 Xcode 的控制台输入命令 command source ~/.lldbinit

# ~/.lldbinitcommand script import ~/chisel/fblldb.py script fblldb.loadCommandsInDirectory('/Users/yanghu/lldbCustom/')

#!/usr/bin/python# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved # # This source code is licensed under the MIT license found in the # LICENSE file in the root directory of this source tree.import osimport lldb import fblldbbase as fbdef lldbcommands(): return [ YHCurrentThreadCheckCommand(), YHCurrentThreadMainCheckCommand() ]class YHCurrentThreadCheckCommand(fb.FBCommand): def name(self): return 'yhct'def description(self): return 'print current thread'def run(self, arguments, options): command = 'po [NSThread currentThread]' lldb.debugger.HandleCommand(command)class YHCurrentThreadMainCheckCommand(fb.FBCommand): def name(self): return 'yhctm'def description(self): return 'check current thread is or is not equal to main thread'def run(self, arguments, options): command = 'po [NSThread currentThread].isMainThread' lldb.debugger.HandleCommand(command)

Open a UIImage, CGImageRef, UIView, or CALayer in Preview.app on your Mac. Expects 'raw' input (see 'help raw-input'.)Syntax: visualize Open a UIImage, CGImageRef, UIView, or CALayer in Preview.app on your Mac.Arguments: ; Type: (id); The object to visualize.Syntax: visualize This command is implemented as FBVisualizeCommand in /Users/yanghu/chisel/commands/FBVisualizationCommands.py.

...... def _showImage(commandForImage): imageDirectory = '/tmp/xcode_debug_images/'imageName = time.strftime("%Y-%m-%d-%H-%M-%S", time.gmtime()) + ".png" imagePath = imageDirectory + imageNametry: os.makedirs(imageDirectory) except OSError as e: if e.errno == errno.EEXIST and os.path.isdir(imageDirectory): pass else: raisetoPNG = '(id)UIImagePNGRepresentation((id){})'.format(commandForImage) imageDataAddress = fb.evaluateExpressionValue(toPNG, tryAllThreads=True).GetValue() imageBytesStartAddress = fb.evaluateExpression('(void *)[(id)' + imageDataAddress + ' bytes]') imageBytesLength = fb.evaluateExpression('(NSUInteger)[(id)' + imageDataAddress + ' length]')address = int(imageBytesStartAddress, 16) length = int(imageBytesLength)if not (address or length): print('Could not get image data.') returnprocess = lldb.debugger.GetSelectedTarget().GetProcess() error = lldb.SBError() mem = process.ReadMemory(address, length, error)if error is not None and str(error) != 'success': print(error) else: imgFile = open(imagePath, 'wb') imgFile.write(mem) imgFile.close() os.system('open ' + imagePath)......def _showLayer(layer): layer = '(' + layer + ')' size = '((CGRect)[(id)' + layer + ' bounds]).size'width = float(fb.evaluateExpression('(CGFloat)(' + size + '.width)')) height = float(fb.evaluateExpression('(CGFloat)(' + size + '.height)')) if width == 0.0 or height == 0.0: print('Nothing to see here - the size of this element is {} x {}.'.format(width, height)) returnfb.evaluateEffect('UIGraphicsBeginImageContextWithOptions(' + size + ', NO, 0.0)') fb.evaluateEffect('[(id)' + layer + ' renderInContext:(void *)UIGraphicsGetCurrentContext()]')result = fb.evaluateExpressionValue('(UIImage *)UIGraphicsGetImageFromCurrentImageContext()') if result.GetError() is not None and str(result.GetError()) != 'success': print(result.GetError()) else: image = result.GetValue() _showImage(image)fb.evaluateEffect('UIGraphicsEndImageContext()')......def _visualize(target): target = fb.evaluateInputExpression(target)if fb.evaluateBooleanExpression('(unsigned long)CFGetTypeID((CFTypeRef)' + target + ') == (unsigned long)CGImageGetTypeID()'): _showImage('(id)[UIImage imageWithCGImage:' + target + ']') else: if objectHelpers.isKindOfClass(target, 'UIImage'): _showImage(target) elif objectHelpers.isKindOfClass(target, 'UIView'): _showLayer('[(id)' + target + ' layer]') elif objectHelpers.isKindOfClass(target, 'CALayer'): _showLayer(target) elif objectHelpers.isKindOfClass(target, 'UIColor') or objectHelpers.isKindOfClass(target, 'CIColor') or _colorIsCGColorRef(target): _showColor(target) elif objectHelpers.isKindOfClass(target, 'NSData'): if _dataIsImage(target): _showImage('(id)[UIImage imageWithData:' + target + ']') elif _dataIsString(target): print(fb.describeObject('[[NSString alloc] initWithData:' + target + ' encoding:4]')) else: print('Data isn\'t an image and isn\'t a string.') else: print('{} isn\'t supported. You can visualize UIImage, CGImageRef, UIView, CALayer, NSData, UIColor, CIColor, or CGColorRef.'.format(objectHelpers.className(target)))class FBVisualizeCommand(fb.FBCommand): def name(self): return 'visualize'def description(self): return 'Open a UIImage, CGImageRef, UIView, or CALayer in Preview.app on your Mac.'def args(self): return [ fb.FBCommandArgument(arg='target', type='(id)', help='The object to visualize.') ]def run(self, arguments, options): _visualize(arguments[0])

1. 确认传参符合要求 fb.evaluateInputExpression(target)
2. 判断传参的类型 objectHelpers.isKindOfClass(target, 'class'), 不同类型执行不同的方法。该例中传参为一个 UIButton 对象，objectHelpers.isKindOfClass(target, 'UIView') 条件成立。因此执行 _showLayer('[(id)' + target + ' layer]') 方法。
3. _showLayer(layer) 方法内，开启了一个图片上下文，在该上下文里绘制一张图片。绘制成功后，调用 _showImage(commandForImage) 方法。
4. _showImage(commandForImage) 方法内，为图片创建一个临时存储路径，将图片流写入文件中 imgFile.write(mem) , 然后用 Mac 自带的预览工具打开该图片文件 os.system('open ' + imagePath)

def loadCommandsInDirectory(commandsDirectory): for file in os.listdir(commandsDirectory): fileName, fileExtension = os.path.splitext(file) if fileExtension == '.py': module = imp.load_source(fileName, os.path.join(commandsDirectory, file))if hasattr(module, 'lldbinit'): module.lldbinit()if hasattr(module, 'lldbcommands'): module._loadedFunctions = {} for command in module.lldbcommands(): loadCommand(module, command, commandsDirectory, fileName, fileExtension)def loadCommand(module, command, directory, filename, extension): func = makeRunCommand(command, os.path.join(directory, filename + extension)) ...... lldb.debugger.HandleCommand('script ' + functionName + ' = sys.modules[\'' + module.__name__ + '\']._loadedFunctions[\'' + key + '\']') lldb.debugger.HandleCommand('command script add --help "{help}" --function {function} {name}'.format( help=helpText.replace('"', '\\"'), # escape quotes function=functionName, name=name))def makeRunCommand(command, filename): def runCommand(debugger, input, exe_ctx, result, _): ...... if validateArgsForCommand(args, command): command.run(args, options)runCommand.__doc__ = helpForCommand(command, filename) return runCommand

1. 加载自定义 Command 文件 module = imp.load_source(fileName, os.path.join(commandsDirectory, file))
2. 遍历自定义 Command 文件中 lldbcommands方法的类对象数组，对每个类对象调用 loadCommand(module, command, directory, filename, extension) 方法。
3. loadCommand(module, command, directory, filename, extension) 方法内调用 func = makeRunCommand(command, os.path.join(directory, filename + extension)) 方法，获取具体执行命令的方法。 makeRunCommand(command, filename) 方法调用类对象的 run(self, arguments, options) 方法，返回执行命令的方法。
4. 调用 lldb.debugger.HandleCommand() 执行命令

推荐阅读

• 

  蓦字五行属什么 蓦字读音及解释
• 

  企业qq怎么登录邮箱 企业QQ邮箱登录的方法教程
• 

  手工皂长出菌斑怎么回事 手工皂出现白斑
• 

  如何结束mysql命令行，mysql怎么终止命令
• 

  中国邮政在线客服 邮政客服电话人工服务，中国邮政快递法规
• 

  元气骑士iOS破解版全无限下载，求元气骑士iOS无限宝石破解版不要越狱的最好带教程
• 

  一篇文章带你入门Java数据结构
• 

  原神各个角色升级材料 《原神》3.4瑶瑶升级材料介绍
• 

  染头发为什么会爆顶
• 

  电视机通电后无任何反应什么原因,各个方面来对比下
• 

  2019一级演员名单 国家一级演员的全部名单
• 

  测量机油的正确方法 测量机油的正确方法视频教程
• 

  宋智孝结婚了吗 宋智孝男朋友
• 

  贵妃芒怎么样才是熟了
• 

  蕨菜什么时候采摘
• 

  为什么有人说“当年流氓真君子,今日君子真流氓”呢？
• 

  黄瓜菌核病如何防治效果好 黄瓜病毒病怎样防治
• 

  初次使用初忆云服务器的感受如何？ 初忆云服务器怎么样
• 

  咖啡蛋糕的做法很需要啊
• 

  六神装是什么

• 由浅入深理解AOP
• 【译】20个更有效地使用谷歌搜索的技巧
• mybatisplus如何在xml的连表查询中使用queryWrapper
• MybatisPlus|MybatisPlus LambdaQueryWrapper使用int默认值的坑及解决
• MybatisPlus使用queryWrapper如何实现复杂查询
• iOS中的Block
• Linux下面如何查看tomcat已经使用多少线程
• 使用composer自动加载类文件
• android|android studio中ndk的使用
• 使用协程爬取网页，计算网页数据大小