为什么我无法在 Ionic 4 中创建无线电警报？

Question

我正在尝试使用 Alert Controlller 和 Ionic 4 构建警报。我想要做的是创建一个包含输入的数组，然后创建警报并将这些输入分配给它，就像这样:

async presentAlert() {
  const alertInputs = [
    { name: 'radio1', type: 'radio', label: 'Radio 1', value: 'value1', checked: true },
    { name: 'radio2', type: 'radio', label: 'Radio 2', value: 'value2' },
  ]

  const alertMessage = await this.alertCtrl.create({
    inputs: alertInputs
  });
}

问题是我在 Visual Studio 代码中遇到了这个错误：

> Type '({ name: string; type: string; label: string; value: string;
> checked: boolean; } | { name: string; type: string; label: string;
> value: string; checked?: undefined; })[]' is not assignable to type
> 'AlertInput[]'.   Type '{ name: string; type: string; label: string;
> value: string; checked: boolean; } | { name: string; type: string;
> label: string; value: string; checked?: undefined; }' is not
> assignable to type 'AlertInput'.
>     Type '{ name: string; type: string; label: string; value: string; checked: boolean; }' is not assignable to type 'AlertInput'.
>       Types of property 'type' are incompatible.
>         Type 'string' is not assignable to type '"number" | "radio" | "date" | "email" | "password" | "search" | "tel" | "text" | "url" |
> "time" | "checkbox" | "textarea"'.ts(2322)

如果我尝试直接在警报中定义输入，就像这样，它可以正常工作，即使它是同一个数组：

const alertMessage = await this.alertCtrl.create({
  inputs: [
    { name: 'radio1', type: 'radio', label: 'Radio 1', value: 'value1', checked: true },
    { name: 'radio2', type: 'radio', label: 'Radio 2', value: 'value2' },
  ]
})

你知道为什么会这样吗？我需要在创建警报之前定义输入数组，因为它们是从远程源以编程方式生成的。

Answer 1

不知为何，AlertInput 没有自动导入。但是，您可以手动导入它。

import {AlertInput} from '@ionic/core/dist/types/components/alert/alert-interface';
...

async presentAlert() {
  const inputs: AlertInput[] = [
    { name: 'radio1', type: 'radio', label: 'Radio 1', value: 'value1', checked: true },
    { name: 'radio2', type: 'radio', label: 'Radio 2', value: 'value2' }
  ];
  const alertMessage = await this.alertCtrl.create({ inputs });
  await alertMessage.present();
}

为什么我无法在 Ionic 4 中创建无线电警报？

Why I cannot create a radio alert in Ionic 4?

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