JD Retail Technology
Nov 28, 2019 · Mobile Development
Understanding iOS Property Modifiers and Common Retain Cycle Scenarios
This article explains iOS property attribute categories, the memory‑related modifiers assign, weak, strong and copy, clarifies why assign can cause dangling pointers while weak does not, and describes typical retain‑cycle cases caused by blocks, NSTimer and delegate misuse along with practical solutions.
ARCMemory ManagementProperty Modifiers
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