iOS keyboard extension technical limitations and workarounds. Use when planning or building iOS custom keyboards with voice/audio features, dictation, or system integration needs. Covers memory limits, sandbox restrictions, microphone access, app launching, and viable alternative architectures.

iOS 键盘扩展的技术限制及解决方案。适用于规划或开发具备语音音频功能、语音听写或系统集成需求的 iOS 自定义键盘。涵盖内存限制、沙盒限制、麦克风访问、应用启动及可行的替代架构。