Ionic4的键盘问题

Question

我已经使用Ionic4开发了一个android应用程序。我面临的问题是，当键盘出现时，它覆盖了输入字段，屏幕没有向上移动。 我已通过以下代码行在Ionic 3中解决了此问题。但这在Ionic4中不起作用。有人请帮忙。

imports: [
    IonicModule.forRoot(MyApp, {
    scrollAssist: true,
    autoFocusAssist: true
    })
  ],

HTML

<div class="field-container">
    <form [formGroup]="credentialsForm" class="width-100">
        <ion-list>
            <ion-item no-padding class="transparent-border">
                <div class="logo-div">
                    <img src="assets/icon/favicon.png" class="app-logo">
                </div>
            </ion-item>
            <ion-item no-padding>
                <ion-label position="floating" color="primary">Username</ion-label>
                <ion-input type="text" color="primary" mode="ios" maxLength="5" formControlName="userName" required></ion-input>
            </ion-item>
            <span class="validation-errors" *ngIf="!credentialsForm.controls.userName.valid && (credentialsForm.controls.userName.dirty || onSaveAttempt)">Username
                is mandatory</span>
            <ion-item no-padding>
                <ion-label position="floating" color="primary">Password</ion-label>
                <ion-input color="primary" type="password" mode="ios" formControlName="password" required></ion-input>
            </ion-item>
            <span class="validation-errors" *ngIf="!credentialsForm.controls.password.valid && (credentialsForm.controls.password.dirty || onSaveAttempt)">Password
                is mandatory</span>
            <ion-item no-padding class="transparent-border">
                <div style="overflow: hidden;width: 100%">
                    <p class="create-account" (click)="doRegistrationNavigation()">Create an Account</p>
                    <p class="forgot-password">Forgot password?</p>
                </div>
            </ion-item>
        </ion-list>
    </form>
    <ion-button (click)="doLogin()" expand="block" shape="round" class="signin-button" color="vibrant">Sign
        In</ion-button>
</div>

Answer 1

尝试一下

fetch(URL_TARGET+"/v1/login", {
    method: 'post',
    body: JSON.stringify({
      username: username,
      password: password
    }
  }).then(function(response) {
    return response.json();
  }).then(function(data) {
    console.log(data);
  });