苹果设备有磁力计吗?
哪些苹果移动设备具有磁力计?我以为 iPod touch 也有这样的功能,但我想我错了。
所有带 GPS 的设备都有磁力计吗?所有带有磁力计的设备都有 GPS 吗?
Which apple mobile devices have a magnetometer? I thought that the iPod touch had one but I think I am mistaken.
Do all devices with GPS have a magnetometer? Do all devices with a magnetometer have a GPS?
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iPhone 3GS 和 iPhone 4。
The iPhone 3GS and iPhone 4.
一种简单的检查方法是使用 此类方法。我写了一个小应用程序,并在我手边的几台设备上运行它,看起来现在只有 iPhone 3GS+(所以 iPhone 4)有一个,尽管我已经看到 粗略证据表明 Compass 应用程序的各个部分存在于触摸中。
An easy way to check is with this class method. I wrote a little app and ran it on a few devices I had lying around, and it looks like only iPhone 3GS+ (so iPhone 4 as well) have one right now, although I've seen sketchy evidence that pieces of the Compass app exist in touches.