uniapp은 이미지 자르기 및 압축 라이브러리를 사용하여 이미지 처리 기능을 구현하는 방법을 구현합니다.

<template>
  <view>
    <image :src="imageSrc" mode="aspectFit" @tap="chooseImage"></image>
    <uni-cropper
      ref="cropper"
      :src="imageSrc"
      :styleType="styleType"
      :aspectRatio="aspectRatio"
      :minCropBoxWidth="minCropBoxWidth"
      :minCropBoxHeight="minCropBoxHeight"
      :maxCropBoxWidth="maxCropBoxWidth"
      :maxCropBoxHeight="maxCropBoxHeight"
      @ready="ready"
      @crop="crop"
    ></uni-cropper>
    <button @click="cropImage">裁剪</button>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        imageSrc: '',
        styleType: 1,
        aspectRatio: 1,
        minCropBoxWidth: 50,
        minCropBoxHeight: 50,
        maxCropBoxWidth: 200,
        maxCropBoxHeight: 200
      };
    },
    methods: {
      chooseImage() {
        uni.chooseImage({
          success: (res) => {
            this.imageSrc = res.tempFilePaths[0];
          }
        });
      },
      ready() {
        this.$refs.cropper.setDragMode('crop');
      },
      crop(e) {
        console.log('裁剪结果：', e.detail);
      },
      cropImage() {
        this.$refs.cropper.crop();
      }
    }
  };
</script>

//选择图片并压缩
uni.chooseImage({
  success: (res) => {
    let tempFilePath = res.tempFilePaths[0];
    uni.compressImage({
      src: tempFilePath,
      quality: 80,   // 压缩质量，取值范围为0-100
      success: (res) => {
        let compressedFilePath = res.tempFilePath;
        // 在这里可以处理压缩后的图片
        console.log(compressedFilePath);
      }
    });
  }
});