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wxapp-startkit's Issues

Page 中定义实例方法无法调用

我实际的使用过程中发现,不仅仅是 bind 方法需要定义为属性后才能被使用,即便是普通的自定义实例方法也需要这么做才可以。

通过控制台我发现,是因为当微信小程序在执行页面的生命周期回调方法时,所获得的 this 也就是 Page 实例中,是没有任何通过函数定义的方法的,只有属性定义的方法。

new class IndexPage {

  data = {
    userInfo: {},
    greeting: 'Hello,World'
  }

  ///////////////////////////////////////////////////////////////////////////

  constructor() {
    Page(this)
  }

  onLoad() {
    console.log(">>> page:onLoad", app)

    userService.getUserInfo().then((userInfo) => {
      this.setData({userInfo: userInfo})
    }).catch((e) => {
      console.log(e);
    })
  }

  onReady() {
    console.log(">>> page:onReady")
  }

  onShow() {
    console.log(">>> page:onShow")

    this.instance_method_1()  // failed instance_method_1 undefined
    this.instance_method_2() // success
  }

  onHide() {
    console.log(">>> page:onHide")
  }

  onUnload() {
    console.log(">>> page:onUnload")
  }

  onPullDownRefresh() {
    console.log(">>> page:onPullDownRefresh")
  }

  ///////////////////////////////////////////////////////////////////////////
  // 普通的方法调用时,通过定义方法的方式将不会被检测到,
  // 必须以定义属性的方式才能被检测到:
  ///////////////////////////////////////////////////////////////////////////

  instance_method_1() {
  }

  instance_method_2 = () => {
  }

  ///////////////////////////////////////////////////////////////////////////
  // 微信小程序(WAService.js)用hasOwnProperty进行bind的事件处理函数检测,
  // 通过定义方法的方式将不会被检测到,必须以定义属性的方式才能被检测到:
  ///////////////////////////////////////////////////////////////////////////

  onButtonTap = () => {
    console.log(">>>>>> button tapped")

    util.wxPromisify(wx.setStorage)({
      key: "abc",
      data: "11111"
    }).then((res) => {
      console.log(">>>>>>>> result:", res)
    }).catch((res) => {
      console.error(">>>>>>> error:", res)
    })
  }

  onViewTap = () => {
    wx.navigateTo({url: '../settings/settings'})
  }

}

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