1. If the request is unsuccessful or aborted at the transport layer, the request will be cancelled according to the method specified by the value.

2. If the request is unsuccessful, a LocatorException will be thrown with an error code indicating the reason for the unsuccessful request.

3. Device applications may be interrupted. The locator class can only be used to make one request at a time.

Apple has its own independent positioning and does not allow others to control it.

(1) Geocoding: Change a place name to a geographical location.

(2) Function: Change the place name to latitude and longitude.

(3) Decoding: converting the position information into text content.

(4) Function: You can click a place on the map to get a text description of the place.

(5) Representation in Chinese characters: Chinese characters must be written in front of the degree, such as 40 north latitude, 25 south latitude, 0/0 east longitude, and 35 west longitude.

(6) Expressed in English letters: the letters must be written after the degree (n stands for north latitude, s stands for south latitude, e stands for east longitude, and w stands for west longitude. These four letters are actually the first letters of English words in the Middle East, West, South and North, such as 40 N, 25 S,10 e, 35 W = 35 W

(7) If you ask the latitude and longitude coordinates, which one is written in the front and which one is written in the back, just like the question of who is in front and who is behind in the rectangular coordinate system in mathematics. As for geographical latitude and longitude, there are no hard and fast rules. The key is the usual writing habits. If the order is reversed, it is not your fault. Geography majors, in most cases, write longitude first, then latitude.

Reference link:

IPone 6 Baidu encyclopedia

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