打开键盘时隐藏标签 [英] Hide tabs on keyboard open

问题描述

我想在键盘打开时隐藏我的标签，并在键盘关闭时再次显示标签.

I want to hide my tabs when the keyboard is open, and show the tabs again when the keyboard is closed.

我知道我可以只使用AdjustSpan"，仅此而已，但问题是如果我这样做，键盘也会隐藏我用于聊天的输入，因为它是页脚.

I know that I can go just for "AdjustSpan", and thats it, but the problem is that if I do that, the keyboard also hides an input that I have for a chat, because its a footer.

隐藏标签的最佳方法是什么?

Whats the best way to hide the tabs?

我已经在 [ngClass] 中尝试过，我在 Keyboard.disableScroll 中尝试过，并且在 app.module.ts 中也尝试过使用参数 scrollAssist 和 autoFocusAssist 且值为 false ...

I already tried with [ngClass] in , I tried with Keyboard.disableScroll, and also in app.module.ts using the parameters scrollAssist and autoFocusAssist with false value...

似乎没有任何效果.

知道我应该如何隐藏标签吗??

Any idea of how should I hide the tabs??

提前谢谢你！！

推荐答案

你必须为键盘交互添加一个事件监听器来添加(或删除)一些 css 类到 body-tag.在 ionic1 中，默认情况下从框架中添加了hide-on-keyboard-open"类.在 ionic2 中，您必须走自定义实现路径".所以，这就是你要找的东西:

You have to add an eventlistener for keyboard-interaction to add (or remove) some css class to the body-tag. In ionic1 the class "hide-on-keyboard-open" was added by default from the framework. In ionic2 you have to walk the "custom-implementation-path". So, here is what you are looking for:

1) 按照 ionic2 文档中的说明安装键盘插件和 node_modules:

1) Install keyboard-plugin and node_modules as described in ionic2 docs:

ionic plugin add ionic-plugin-keyboard
npm install --save @ionic-native/keyboard

https://ionicframework.com/docs/native/keyboard/

2) 将插件添加到您的 app.modules.ts

2) Add the plugin to your app.modules.ts

3) 在 app.component.ts 的 device-ready 事件中添加所需的事件列表:

3) Add the desired eventlister withiin the device-ready event in your app.component.ts:

this.platform.ready().then(() => {

        // Okay, so the platform is ready and our plugins are available.
        // Here you can do any higher level native things you might need.
        this.statusBar.styleDefault();

        this.keyboard.onKeyboardShow().subscribe(() => {
            document.body.classList.add('keyboard-is-open');
        });

        this.keyboard.onKeyboardHide().subscribe(() => {
            document.body.classList.remove('keyboard-is-open');
        });
})

4) 使用附加的类属性 (hideElementOnKeyboardShown) 将类定义添加到 app.scss

4) Add the class defintion to your app.scss with a additional class-attribute (hideElementOnKeyboardShown)

body.keyboard-is-open .hideElementOnKeyboardShown{
    display: none;        
}

5) 将类添加到所需的元素，例如页脚、div 或其他:

5) Add the class to the desired element, eg an footer, div or sth else:

<ion-footer class="hideElementOnKeyboardShown">
    <button round ion-button (click)="onLogin()"  block>
        <ion-icon name="logo-facebook" padding></ion-icon>
            Login
    </button>
</ion-footer>

6) 在这种情况下，将 ion-footer 标签放在 content-tag 中，否则在显示键盘时计算的 viewheight 不正确.

6) in this case, put the ion-footer tag within the content-tag, otherwise the calculated viewheight isnt correct when keyboard is shown.

祝你有美好的一天！

这篇关于打开键盘时隐藏标签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IT屋！