{"id":5443810,"uri":"rw://betamax/collections/205","name":"Exploring UIKit Internals with Hopper Disassembler","description":"

Explore private UIKit APIs using the reverse engineering tool Hopper Disassembler and then use your advanced knowledge of UIKit's hidden secrets to your advantage in your own app.

","released_at":"2019-11-05T14:00:00.000Z","searchable":true,"free":false,"created_at":"2019-09-11T17:19:47.665Z","updated_at":"2019-11-13T17:01:00.378Z","duration":1929,"difficulty":"advanced","content_type":"collection","platform_id":53,"language_id":22,"editor_id":46,"group_id":null,"ordinal":null,"body":null,"warnings":[],"related_content_id":null,"popularity":163.5,"labelled_as_new":true,"display_attributes":{"concepts_covered":"

Using Hopper to find public and private UIKit symbols.
Reverse engineering implementations of classes and methods in UIKit.
Relating stack traces in Xcode to their reverse engineered implementations.
Leveraging that knowledge to enhance a basic app with private UIKit functionality.

","intended_audience":"

This course is for experienced developers who are interested in getting a deeper understanding of how Apple's frameworks are built.

The course assumes extensive knowledge of Xcode, UIKit, and to some extent Objective-C, since that's what most Apple frameworks are written in. Being familiar with the history of iOS and what features shipped with what iOS releases is useful, though not required.

"},"average_rating":"5.0","rating_count":3,"professional":true,"to_param":"5443810-exploring-uikit-internals-with-hopper-disassembler","released_versions_data":[{"id":5443810,"url":"5443810-exploring-uikit-internals-with-hopper-disassembler","description":"Swift 5.1, iOS 13.1, Xcode 11.1"}],"groups":[{"id":453,"uri":"rw://betamax/parts/247","content_id":5443810,"ordinal":0,"name":"Using Hopper Disassembler","description":"","created_at":"2019-10-30T10:53:44.366Z","updated_at":"2019-10-30T10:53:44.376Z","contents":[{"id":6288108,"uri":"rw://betamax/videos/3288","name":"Exploring UIKit Internals with Hopper Disassembler · Nest Navigation Controllers with Public API","description":"

See what happens when you try to nest navigation controllers using strictly public API by observing the assertion and associated stack trace.

","released_at":"2019-11-05T14:00:00.000Z","searchable":true,"free":true,"created_at":"2019-10-30T10:55:53.227Z","updated_at":"2019-11-13T17:00:59.701Z","duration":162,"difficulty":"advanced","content_type":"episode","platform_id":53,"language_id":22,"editor_id":46,"group_id":453,"ordinal":1,"warnings":[],"related_content_id":null,"popularity":490.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":false,"duration_in_time":"2:42","episode_title":"Nest Navigation Controllers with Public API","identifier":"3288","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/3288/b283b007-3c64-49ff-af8b-83b67c3f714f.png","released":true,"has_materials_url":true},{"id":6288140,"uri":"rw://betamax/videos/3289","name":"Exploring UIKit Internals with Hopper Disassembler · Disassemble UIKit Using Hopper","description":"

Download and install Hopper, find the right UIKit binary in Xcode and start disassembling the binary.

","released_at":"2019-11-05T14:00:00.000Z","searchable":true,"free":false,"created_at":"2019-10-30T10:57:51.505Z","updated_at":"2019-11-13T16:01:30.588Z","duration":130,"difficulty":"advanced","content_type":"episode","platform_id":53,"language_id":22,"editor_id":46,"group_id":453,"ordinal":2,"warnings":[],"related_content_id":null,"popularity":297.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":true,"duration_in_time":"2:10","episode_title":"Disassemble UIKit Using Hopper","identifier":"3289","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/3289/e7d9d897-6670-4bb0-a097-62ca3d7c044b.png","released":true,"has_materials_url":false},{"id":6288424,"uri":"rw://betamax/videos/3290","name":"Exploring UIKit Internals with Hopper Disassembler · Look Inside UIKit","description":"

Look at some initial symbols and get a sense for what functionality Hopper offers and how it displays pseudo code.

","released_at":"2019-11-05T14:00:00.000Z","searchable":true,"free":false,"created_at":"2019-10-30T11:15:55.819Z","updated_at":"2019-11-13T16:01:30.686Z","duration":243,"difficulty":"advanced","content_type":"episode","platform_id":53,"language_id":22,"editor_id":46,"group_id":453,"ordinal":3,"warnings":[],"related_content_id":null,"popularity":192.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":true,"duration_in_time":"4:03","episode_title":"Look Inside UIKit","identifier":"3290","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/3290/0f024967-ecc4-4058-abfb-dbd8ff1d98c7.png","released":true,"has_materials_url":false}]},{"id":454,"uri":"rw://betamax/parts/248","content_id":5443810,"ordinal":1,"name":"Nesting Navigation Controllers","description":"","created_at":"2019-10-30T10:54:27.901Z","updated_at":"2019-10-30T10:54:27.907Z","contents":[{"id":6288550,"uri":"rw://betamax/videos/3291","name":"Exploring UIKit Internals with Hopper Disassembler · Relate Stack Trace to Implementation","description":"

Take the asserting stack trace and use Hopper to understand how UIKit reached the assertion.

","released_at":"2019-11-05T14:00:00.000Z","searchable":true,"free":false,"created_at":"2019-10-30T11:24:08.328Z","updated_at":"2019-11-13T17:00:59.903Z","duration":191,"difficulty":"advanced","content_type":"episode","platform_id":53,"language_id":22,"editor_id":46,"group_id":454,"ordinal":4,"warnings":[],"related_content_id":null,"popularity":129.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":true,"duration_in_time":"3:11","episode_title":"Relate Stack Trace to Implementation","identifier":"3291","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/3291/f0242b16-54e4-4688-a482-dc8035342a03.png","released":true,"has_materials_url":false},{"id":6288564,"uri":"rw://betamax/videos/3292","name":"Exploring UIKit Internals with Hopper Disassembler · Explore Baked-in Support for Nesting Navigation Controllers","description":"

Discover how UIKit leverages private API to make nesting work internally.

","released_at":"2019-11-05T14:00:00.000Z","searchable":true,"free":false,"created_at":"2019-10-30T11:24:54.365Z","updated_at":"2019-11-13T07:00:39.601Z","duration":122,"difficulty":"advanced","content_type":"episode","platform_id":53,"language_id":22,"editor_id":46,"group_id":454,"ordinal":5,"warnings":[],"related_content_id":null,"popularity":114.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":true,"duration_in_time":"2:02","episode_title":"Explore Baked-in Support for Nesting Navigation Controllers","identifier":"3292","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/3292/7b29390c-dbee-4505-9123-9f63382f6acf.png","released":true,"has_materials_url":false},{"id":6288576,"uri":"rw://betamax/videos/3293","name":"Exploring UIKit Internals with Hopper Disassembler · Use KVC to Nest Navigation Controllers","description":"

Leverage basic KVC to nest navigation controllers using the same API that UIKit uses.

","released_at":"2019-11-05T14:00:00.000Z","searchable":true,"free":false,"created_at":"2019-10-30T11:25:22.559Z","updated_at":"2019-11-13T16:01:30.963Z","duration":139,"difficulty":"advanced","content_type":"episode","platform_id":53,"language_id":22,"editor_id":46,"group_id":454,"ordinal":6,"warnings":[],"related_content_id":null,"popularity":82.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":true,"duration_in_time":"2:19","episode_title":"Use KVC to Nest Navigation Controllers","identifier":"3293","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/3293/07cf3093-9c91-445a-9562-8f4d9e9fc4ac.png","released":true,"has_materials_url":true},{"id":6288595,"uri":"rw://betamax/videos/3294","name":"Exploring UIKit Internals with Hopper Disassembler · Make UIKit Happy","description":"

Tweak the app so UIKit is happy with your use of its APIs without really knowing what those requirements are.

","released_at":"2019-11-05T14:00:00.000Z","searchable":true,"free":false,"created_at":"2019-10-30T11:25:55.739Z","updated_at":"2019-11-13T01:00:49.742Z","duration":286,"difficulty":"advanced","content_type":"episode","platform_id":53,"language_id":22,"editor_id":46,"group_id":454,"ordinal":7,"warnings":[],"related_content_id":null,"popularity":88.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":true,"duration_in_time":"4:46","episode_title":"Make UIKit Happy","identifier":"3294","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/3294/9f08eef3-1b2a-4fbb-83ac-804482d2275e.png","released":true,"has_materials_url":true}]},{"id":455,"uri":"rw://betamax/parts/249","content_id":5443810,"ordinal":2,"name":"Managing Navigation Bars","description":"","created_at":"2019-10-30T10:54:45.299Z","updated_at":"2019-10-30T10:54:45.306Z","contents":[{"id":6288615,"uri":"rw://betamax/videos/3295","name":"Exploring UIKit Internals with Hopper Disassembler · Hide the Navigation Bar","description":"

See how hiding the navigation bar could have unintended side effects now that you're using private API.

","released_at":"2019-11-05T14:00:00.000Z","searchable":true,"free":false,"created_at":"2019-10-30T11:26:28.185Z","updated_at":"2019-11-13T13:00:43.370Z","duration":291,"difficulty":"advanced","content_type":"episode","platform_id":53,"language_id":22,"editor_id":46,"group_id":455,"ordinal":8,"warnings":[],"related_content_id":null,"popularity":93.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":true,"duration_in_time":"4:51","episode_title":"Hide the Navigation Bar","identifier":"3295","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/3295/6668d8b3-8a44-4270-bb53-b850ea6c1f3b.png","released":true,"has_materials_url":true},{"id":6288641,"uri":"rw://betamax/videos/3296","name":"Exploring UIKit Internals with Hopper Disassembler · Hide the Right Navigation Bar","description":"

Use Hopper again to understand why the wrong navigation bar is hidden and find a possible workaround.

","released_at":"2019-11-05T14:00:00.000Z","searchable":true,"free":false,"created_at":"2019-10-30T11:27:11.612Z","updated_at":"2019-11-13T07:00:39.992Z","duration":172,"difficulty":"advanced","content_type":"episode","platform_id":53,"language_id":22,"editor_id":46,"group_id":455,"ordinal":9,"warnings":[],"related_content_id":null,"popularity":74.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":true,"duration_in_time":"2:52","episode_title":"Hide the Right Navigation Bar","identifier":"3296","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/3296/dbb37b53-a787-4d71-a0d4-af1aa32cf297.png","released":true,"has_materials_url":false},{"id":6288665,"uri":"rw://betamax/videos/3297","name":"Exploring UIKit Internals with Hopper Disassembler · Fix the Navigation Bar's Transition","description":"

Experience first hand why using private API is dangerous but how you can make UIKit still bend to your will.

","released_at":"2019-11-05T14:00:00.000Z","searchable":true,"free":false,"created_at":"2019-10-30T11:27:46.417Z","updated_at":"2019-11-13T12:01:03.984Z","duration":193,"difficulty":"advanced","content_type":"episode","platform_id":53,"language_id":22,"editor_id":46,"group_id":455,"ordinal":10,"warnings":[],"related_content_id":null,"popularity":76.0,"labelled_as_new":false,"average_rating":null,"rating_count":0,"professional":true,"duration_in_time":"3:13","episode_title":"Fix the Navigation Bar's Transition","identifier":"3297","video_banner_url":"https://files.betamax.raywenderlich.com/attachments/videos/3297/de27e934-01f5-4491-ba8a-11add81a4e5d.png","released":true,"has_materials_url":true}]}]}

Create your free learning account today!