iPhone 倒是有个指南针可以用

来源: 于 2026-03-16 18:38:22 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次
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How to Use the iPhone's Compass and Level
The iPhone compass works via an internal magnetometersensor that measures the strength and direction of Earth's magnetic field, allowing it to determine magnetic north. Combined with GPS and the accelerometer, it maps this data to show cardinal directions and location data