我正在将我的应用程序从Ionic 4
迁移到Ionic 3
,发现每个组件都使用async and await calls
。我知道为什么要使用它,但是在我的Ionic 3应用程序中,Loading Controller Component
内有一个嵌套的Alert Controller Component
。
离子3 .ts
submitAssetLoc(form: NgForm){
const alert = this.alertCtrl.create({
header: 'Submit',
message: 'Are you sure you want to Submit?',
buttons: [
{
text: 'Yes',
role: 'Yes',
handler: () => {
const loading = this.loadingCtrl.create({
message: 'Submitting...'
});
loading.present();
this.stemAPI.updateGPSLoc(this.testData).subscribe((result) => {
loading.dismiss();
}, (err) => {
loading.dismiss();
let alert = this.alertCtrl.create({
header: 'Error: Could not submit!',
message: 'Try submitting again, or submit offline!',
buttons: [
{
text: 'Try Submitting Again',
role: 'Yes',
handler: () => {
this.newGPSLoc = [];
}
},
{
text: 'Submit Offline',
handler: () => {
this.navCtrl.push(SuccessPage, { 'APIresponse': 'Form submitted offline, please go to support page and re-submit!'});
}
}
]
});
alert.present();
}
)}
},
{
text: 'No',
role: 'Cancel',
handler: () => {
}
}
]
});
alert.present();
}
我的问题是异步,等待调用未正确实现,我知道 我的代码显然效率不高 。我假设我需要为每种方法制作方法,但是正确实现此功能的最佳方法是什么?
答案 0 :(得分:1)
希望这会有所帮助
<profile_modal>
<template slot="trigger">
<figure class="profile-card__figure | image -is1x1">
<img src="<%= person.avatar.url %>" alt="">
</figure>
...