Angular Material tab height

Question

I am trying to have a full page Angular Material tab which has tabs which are full height and have a centered message. I have created this stakblitz as I can't get it to work. The fxFill's don't seem to Fill and I am not sure if this is an issue with the Flexbox layout or Angular Material. I don't want to force a height as within each tab as that seems to defeat the point of flexible layouts.

Am sure its simple but help a poor confused developer who is used to Bootstrap grid :)

UPDATE Adding height: calc(100vh - 100px); to the parent div and then also to the tall.component div makes things work but surely this is a bad solution

Answer 1

In order to fill the page, the page needs to fill the window:

styles.css

body, html{
  height: 100%;
  margin: 0;
}

The app component needs to fill the body:

app.component.css

:host{
  box-sizing: border-box;
  display: block;
  height: 100%;
}

By default the wrappers of the content within the tabs are not filling the tab's height so we will fix this:

styles.css

.mat-tab-body-wrapper{
  flex-grow: 1;
}

We also need to have the mat-tab-group fill the height, it's parent needs to fill the height too, so we will give an id to both the wrapper and the tab-group.

app.component.ts

<div id="wrapper"> <!-- give it an id -->
    <div fxLayout="row" fxLayoutGap="16px" fxFill>
        <div fxFlex="20">
            <p>Fun Sidebar</p>
        </div>
        <div fxFlex="80" fxFill>
            <mat-tab-group id="tab-group"> <!-- give it an id -->
                <mat-tab label="Summary">
                    <div fxFlex style="padding: 16px;">
                        <div class="mat-display-2">Hello</div>
                        <p>Lorem ipsulem</p>
                    </div>
                </mat-tab>
                <mat-tab label="Tall content">
                    <app-tall-component></app-tall-component>
                </mat-tab>
            </mat-tab-group>
        </div>
    </div>
</div>

app.component.css

#wrapper{
  padding: 16px; 
  min-height: 100%; 
  height: 100%; 
  box-sizing: border-box;/*new*/
}
#tab-group{
  height: 100%;
}
#tab-group mat-tab-body {
  flex-grow: 1;
}

---

https://stackblitz.com/edit/angular-awamwn?file=src%2Fapp%2Fapp.component.html

Answer 2

This is worked for me to assign dynamic value for height.

:host ::ng-deep .mat-tab-body-wrapper {
  height: 600px;

}

:host ::ng-deep .mat-tab-body.mat-tab-body-active {
  height: 600px;

}

Answer 3

According to Angular docs: you need to set the dynamicHeight input to true [dynamicHeight]='true'

By default, the tab group will not change its height to the height of the currently active tab. To change this, set the dynamicHeight input to true. The tab body will animate its height according to the height of the active tab.