问题描述
我正在使用 Ionic 2 rc4
。我正在按照的建议进行操作执行以下操作:
I am using Ionic 2 rc4
. I am following the advise here and am trying to do the following:
import { NavController } from 'ionic-angular';
...
this.nav.present(this.loading).then(() => {
然而,对我来说,看起来 NavController
没有现在的
函数,因为我得到:
However, to me it looks like the NavController
does not have a present
function, because I get:
[ts] Property 'present' does not exist on type 'NavController'.
any
我是否正确,或者我是我做错了什么?他们如何获得这个幽灵功能?
Am I correct, or am I doing something wrong? How do they get to access this "phantom" function?
任何建议都赞赏。
更新
这是我的代码导致以下错误(在 this.loading.present()上。然后(()=> {
):
Here is my code that results in the following error (on this.loading.present().then(() => {
):
它首次显示加载。但是在 submit(),则会显示> alert ,它会出现此错误。
It presents loading the first time. but after the alert
is presented if submit()
is run again, it gets this error.
submit() {
this.loading.present().then(() => {
let alert = this.alertCtrl.create({
title: 'Verify Email',
subTitle: 'Please verify your email address before you log in.',
message: 'Check your Spam folder if you cannot find the email.',
buttons: [
{
text: 'Resend',
handler: data => {
firebaseUser.sendEmailVerification().then((data) => {
this.doAlert('Verify Email', 'Verification Email Sent.').then((data) => {
//navCtrl.setRoot(navCtrl.getActive());
});
});
}
},
{
text: 'Okay',
handler: data => {
//navCtrl.setRoot(navCtrl.getActive());
}
}
]
});
alert.present();
this.loading.dismiss();
});
}
推荐答案
看着这个
Looking at this changelog for Beta 11
他们从 Navcontroller
中删除了现在的
函数。
They have removed present
function from Navcontroller
.
您需要重构代码并根据您的要求使用其他功能。
this.loading.present()
You need to refactor your code and use some other function based on your requirement.this.loading.present()
对于错误,请检查文档。
For the error, check the Loading controller docs.
:
this.loading = this.loadingCtrl.create({
//loading properties
});
在之前
在<$ c之前$ c> this.loading.present()
这篇关于Ionic2:'NavController'类型中不存在属性'present'的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!