Xamarin.iOS: Transforming your .NET into native code
summary
Explains how Xamarin.iOS produces self-contained native apps by combining a full AOT ahead-of-time compiler, generated Objective‑C trampolines/registrar for callbacks, and a managed linker that removes unused BCL code; a Hello World drops to about 6 MB with AOT and linking versus hundreds of MB without. Adds an IL interpreter for dynamic features and mixed-mode apps, supports watchOS via a cooperative GC mode, and provides Swift binding tooling so Swift frameworks can be consumed. Tooling is called mtouch and it packages, signs and submits the final .app.
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chapters (16)
- 0:00Introduction
- 2:30Execution
- 4:00Build Applications
- 4:26Mono
- 5:21Application Bundle
- 7:06Bindings
- 7:57API
- 8:53ObjectiveC
- 10:13iOS restrictions
- 11:42Shared application
- 15:55Full UT compiler
- 17:05Pros and cons
- 23:22Interpret IR
- 29:25TVOS
- 34:46Swift
- 39:47Questions
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