index.js

import { VantComponent } from '../common/component';
import { button } from '../mixins/button';
import { openType } from '../mixins/open-type';
VantComponent({
  mixins: [button, openType],
  classes: ['custom-class', 'loading-class', 'error-class', 'image-class'],
  props: {
    src: {
      type: String,
      observer() {
        this.setData({
          error: false,
          loading: true,
        });
      },
    },
    round: Boolean,
    width: null,
    height: null,
    radius: null,
    lazyLoad: Boolean,
    useErrorSlot: Boolean,
    useLoadingSlot: Boolean,
    showMenuByLongpress: Boolean,
    fit: {
      type: String,
      value: 'fill',
    },
    showError: {
      type: Boolean,
      value: true,
    },
    showLoading: {
      type: Boolean,
      value: true,
    },
  },
  data: {
    error: false,
    loading: true,
    viewStyle: '',
  },
  methods: {
    onLoad(event) {
      this.setData({
        loading: false,
      });
      this.$emit('load', event.detail);
    },
    onError(event) {
      this.setData({
        loading: false,
        error: true,
      });
      this.$emit('error', event.detail);
    },
    onClick(event) {
      this.$emit('click', event.detail);
    },
  },
});