xinda-miniprogram/src/utils/component.ts

/**
 * 使用方法：
 * 1、app.js 引入此文件：const page = require('xx/xx/page);
 * 2、app.js onLaunch 的时候 Page = page
 */

const originalComponent = Component;

function component(
  config: WechatMiniprogram.Component.Instance<
    WechatMiniprogram.Component.DataOption,
    WechatMiniprogram.Component.PropertyOption,
    WechatMiniprogram.Component.MethodOption,
    WechatMiniprogram.Component.BehaviorOption
  >,
) {
  if (config?.lifetimes?.attached) {
    const originalOnAttached = config.lifetimes.attached;
    config.lifetimes.attached = function (options) {
      setImageParams(this);
      getApp().getMenuInfo(this);

      if (originalOnAttached) {
        originalOnAttached.call(this, options);
      }
    };
  } else {
    const originalOnAttached = config.attached;
    config.attached = function (options) {
      setImageParams(this);
      getApp().getMenuInfo(this);

      if (originalOnAttached) {
        originalOnAttached.call(this, options);
      }
    };
  }

  return originalComponent(config);
}

function setImageParams(
  currPage: WechatMiniprogram.Component.Instance<
    WechatMiniprogram.Component.DataOption,
    WechatMiniprogram.Component.PropertyOption,
    WechatMiniprogram.Component.MethodOption,
    WechatMiniprogram.Component.BehaviorOption
  >,
) {
  const date = new Date();
  const Timestamp = date.getTime();
  currPage.setData({
    imageUrl: getApp().globalData.imageUrl,
    Timestamp,
  });
}

export default component;