How does WeChat Mini Programs draw the compass

Today, the editor will share with you the relevant knowledge about how WeChat Mini Programs draws the compass. The content is detailed and the logic is clear. I believe most people still know too much about this, so share this article for your reference. I hope you can get something after reading this article. Let's take a look at it.

Wx.onCompassChange (CALLBACK)

Monitor compass data with a frequency of 5 times per second. After the API is called, it will automatically start listening. You can use wx.stopCompass to stop listening.

CALLBACK return parameters:

The parameter type indicates the degree of direction faced by directionNumber

Sample code:

Wx.onCompassChange (function (res) {console.log (res.direction)}) wx.startCompass (OBJECT)

The basic library 1.1.0 is supported, and the lower version needs to be compatible.

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:

Wx.startCompass () wx.stopCompass (OBJECT)

The basic library 1.1.0 is supported, and the lower version needs to be compatible.

Stop 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:

Wx.stopCompass () above is all the contents of the article "how to draw the Compass by WeChat Mini Programs". Thank you for reading! I believe you will gain a lot after reading this article. The editor will update different knowledge for you every day. If you want to learn more knowledge, please pay attention to the industry information channel.