目录 - 博文视点

前言  
致谢  
关于作者  
Chapter 1: Accustoming Yourself to Objective-C  
Item 1: Familiarize Yourself with Objective-C’s Roots  
Item 2: Minimize Importing Headers in Headers  
Item 3: Prefer Literal Syntax over the Equivalent Methods  
Item 4: Prefer Typed Constants to Preprocessor \#define  
Item 5: Use Enumerations for States, Options, and Status Codes

Chapter 2: Objects, Messaging, and the Runtime  
Item 6: Understand Properties  
Item 7: Access Instance Variables Primarily Directly When  
Accessing Them Internally  
Item 8: Understand Object Equality  
Item 9: Use the Class Cluster Pattern to Hide Implementation Detail  
Item 10: Use Associated Objects to Attach Custom Data to Existing Classes  
Item 11: Understand the Role of objc\_msgSend  
Item 12: Understand Message Forwarding  
Item 13: Consider Method Swizzling to Debug Opaque Methods  
Item 14: Understand What a Class Object Is

Chapter 3: Interface and API Design  
Item 15: Use Prefix Names to Avoid Namespace Clashes  
Item 16: Have a Designated Initializer  
Item 17: Implement the description Method  
Item 18: Prefer Immutable Objects  
Item 19: Use Clear and Consistent Naming  
Item 20: Prefix Private Method Names  
Item 21: Understand the Objective-C Error Model  
Item 22: Understand the NSCopying Protocol

Chapter 4: Protocols and Categories  
Item 23: Use Delegate and Data Source Protocols for Interobject Communication  
Item 24: Use Categories to Break Class Implementations into Manageable Segments  
Item 25: Always Prefix Category Names on Third-Party Classes  
Item 26: Avoid Properties in Categories  
Item 27: Use the Class-Continuation Category to Hide Implementation Detail  
Item 28: Use a Protocol to Provide Anonymous Objects

Chapter 5: Memory Management  
Item 29: Understand Reference Counting  
Item 30: Use ARC to Make Reference Counting Easier  
Item 31: Release References and Clean Up Observation State Only in dealloc  
Item 32: Beware of Memory Management with Exception-Safe Code  
Item 33: Use Weak References to Avoid Retain Cycles  
Item 34: Use Autorelease Pool Blocks to Reduce High-Memory Waterline  
Item 35: Use Zombies to Help Debug Memory-Management Problems  
Item 36: Avoid Using retainCount

Chapter 6: Blocks and Grand Central Dispatch  
Item 37: Understand Blocks  
Item 38: Create typedefs for Common Block Types  
Item 39: Use Handler Blocks to Reduce Code Separation  
Item 40: Avoid Retain Cycles Introduced by Blocks Referencing the Object Owning
Them  
Item 41: Prefer Dispatch Queues to Locks for Synchronization  
Item 42: Prefer GCD to performSelector and Friends  
Item 43: Know When to Use GCD and When to Use Operation Queues  
Item 44: Use Dispatch Groups to Take Advantage of Platform Scaling  
Item 45: Use dispatch\_once for Thread-Safe Single-Time Code Execution  
Item 46: Avoid dispatch\_get\_current\_queue

Chapter 7: The System Frameworks  
Item 47: Familiarize Yourself with the System Frameworks  
Item 48: Prefer Block Enumeration to for Loops  
Item 49: Use Toll-Free Bridging for Collections with Custom Memory-Management
Semantics  
Item 50: Use NSCache Instead of NSDictionary for Caches  
Item 51: Keep initialize and load Implementations Lean  
Item 52: Remember that NSTimer Retains Its Target  
Index

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