dlt.compressImage

Introduction

Image compression interface, with optional compression quality.

Usage Restrictions

Supported by the base library version 3.0.0 or higher.

Parameters

Object object

Property	Type	Default	Required	Description
src	string		Yes	Path of the image; supports local path, code package path
quality	number	80	No	Compression quality, range 0 ~ 100, the smaller the value, the lower the quality and the higher the compression ratio
compressedWidth	number		No	Width of the compressed image in pixels, if not filled, it will be scaled proportionally based on compressedHeight
compressedHeight	number		No	Height of the compressed image in pixels, if not filled, it will be scaled proportionally based on compressedWidth
success	function		No	Callback function for a successful API call
fail	function		No	Callback function for a failed API call
complete	function		No	Callback function that will be executed when the API call ends (both success and failure)

object.success Callback Function

Parameters

Object res

Property	Type	Description
success	string	true-Set successfully.
tempFilePath	string	Temporary file path of the compressed image (local path)

object.fail Callback Function

Parameters

Object res

Property	Type	Description
errMsg	string	1. Parameter error: AS10001 2. Quality must be 0..100: CI10002 3. 3. Original file not exists: CI10003
success	string	false-Set failed.

Sample Code

// pages/index/index.js
Page({
  compressImage() {
    dlt.compressImage({
      src: "", // 图片路径
      quality: 80, // 压缩质量
    });
  },
});