How did WeChat Mini Programs start monitoring compass data?

In this article entitled "how WeChat Mini Programs began to monitor compass data", the sample code in the article is very detailed and has a certain reference value. Interested friends must refer to "how WeChat Mini Programs began to monitor compass data". The editor sorted out the following knowledge points, please follow the pace of the editor to understand step by step, and then let's get into the topic.

Start listening to compass data.

OBJECT parameter description:

Parameter type is required to indicate whether successFunction API calls successful callback function failFunction No API call failed callback function completeFunction No API call ends callback function (both successful and failed calls will be executed)

Sample code:

What does wx.startCompass () Mini Program mean? Mini Program is an application that can be used without download and installation. It can be used immediately by scanning a QR code or searching it. It is easy to operate and easy to spread. It can achieve seven major functions, such as message notification, offline code scanning, and official account association. It is based on Wechat, similar to APP. You can use it whenever you want. After using it, you will leave without taking up memory.

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