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Developing Vue Apps with the Quasar Library — Spacers, Spinners, Split Screens

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Quasar is a popular Vue UI library for developing good looking Vue apps.

In this article, we’ll take a look at how to create Vue apps with the Quasar UI library.

Spacer

We can add the q-space component to add a spacer to fill any space.

For instance, we can write:

<!DOCTYPE html>
<html>
  <head>
    <link
      href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900|Material+Icons"
      rel="stylesheet"
      type="text/css"
    />
    <link
      href="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.min.css"
      rel="stylesheet"
      type="text/css"
    />
  </head>
  <body class="body--dark">
    <script src="https://cdn.jsdelivr.net/npm/vue@^2.0.0/dist/vue.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.umd.min.js"></script>
    <div id="q-app">
      <q-layout
        view="lHh Lpr lFf"
        container
        style="height: 100vh;"
        class="shadow-2 rounded-borders"
      >
        <div class="q-pa-md">
          <q-toolbar class="bg-primary text-white">
            <q-btn flat round dense icon="menu"></q-btn>

            <q-space></q-space>

            <q-btn flat round dense icon="more_vert"></q-btn>
          </q-toolbar>
        </div>
      </q-layout>
    </div>
    <script>
      new Vue({
        el: "#q-app",
        data: {}
      });
    </script>
  </body>
</html>

We add the q-space component between the q-btn s to keep them apart.

The q-btn s will be displayed at the ends of the toolbar.

Spinners

We can add a spinner by using the q-spinner component.

For example, we can write:

<!DOCTYPE html>
<html>
  <head>
    <link
      href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900|Material+Icons"
      rel="stylesheet"
      type="text/css"
    />
    <link
      href="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.min.css"
      rel="stylesheet"
      type="text/css"
    />
  </head>
  <body class="body--dark">
    <script src="https://cdn.jsdelivr.net/npm/vue@^2.0.0/dist/vue.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.umd.min.js"></script>
    <div id="q-app">
      <q-layout
        view="lHh Lpr lFf"
        container
        style="height: 100vh;"
        class="shadow-2 rounded-borders"
      >
        <div class="q-pa-md">
          <q-spinner color="primary" size="3em" :thickness="10"> </q-spinner>
        </div>
      </q-layout>
    </div>
    <script>
      new Vue({
        el: "#q-app",
        data: {}
      });
    </script>
  </body>
</html>

We set the diameter with the size prop.

And thickness sets the thickness of the edge of the spinner.

color sets the color of the edge.

Now we should see the spinner with a thick edge.

Quasar comes with many other spinners. For example, we can show animated squares for the loading indicator by writing:

<!DOCTYPE html>
<html>
  <head>
    <link
      href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900|Material+Icons"
      rel="stylesheet"
      type="text/css"
    />
    <link
      href="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.min.css"
      rel="stylesheet"
      type="text/css"
    />
  </head>
  <body class="body--dark">
    <script src="https://cdn.jsdelivr.net/npm/vue@^2.0.0/dist/vue.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.umd.min.js"></script>
    <div id="q-app">
      <q-layout
        view="lHh Lpr lFf"
        container
        style="height: 100vh;"
        class="shadow-2 rounded-borders"
      >
        <div class="q-pa-md">
          <q-spinner-cube color="primary" size="3em" :thickness="10">
          </q-spinner-cube>
        </div>
      </q-layout>
    </div>
    <script>
      new Vue({
        el: "#q-app",
        data: {}
      });
    </script>
  </body>
</html>

Other spinners include:

  • q-spinner-audio
  • q-spinner-ball
  • q-spinner-clock
  • q-spinner-comment
  • q-spinner-dots
  • q-spinner-facebook
  • q-spinner-gears
  • q-spinner-grid
  • q-spinner-hearts
  • q-spinner-hourglass
  • q-spinner-infinity
  • q-spinner-oval
  • q-spinner-pie
  • q-spinner-puff
  • q-spinner-radio
  • q-spinner-rings
  • q-spinner-tail

Split Screen

We can split the browser screen with the q-splitter component.

For example, we can write:

<!DOCTYPE html>
<html>
  <head>
    <link
      href="https://fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900|Material+Icons"
      rel="stylesheet"
      type="text/css"
    />
    <link
      href="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.min.css"
      rel="stylesheet"
      type="text/css"
    />
  </head>
  <body class="body--dark">
    <script src="https://cdn.jsdelivr.net/npm/vue@^2.0.0/dist/vue.min.js"></script>
    <script src="https://cdn.jsdelivr.net/npm/quasar@1.12.13/dist/quasar.umd.min.js"></script>
    <div id="q-app">
      <q-layout
        view="lHh Lpr lFf"
        container
        style="height: 100vh;"
        class="shadow-2 rounded-borders"
      >
        <div class="q-pa-md">
          <q-splitter v-model="splitterModel" style="height: 400px;">
            <template v-slot:before>
              <div class="q-pa-md">
                <div class="text-h4 q-mb-md">Before</div>
                <div v-for="n in 20" :key="n" class="q-my-md">
                  {{ n }}. Lorem ipsum
                </div>
              </div>
            </template>

            <template v-slot:after>
              <div class="q-pa-md">
                <div class="text-h4 q-mb-md">After</div>
                <div v-for="n in 20" :key="n" class="q-my-md">
                  {{ n }}. Quis praesentium
                </div>
              </div>
            </template>
          </q-splitter>
        </div>
      </q-layout>
    </div>
    <script>
      new Vue({
        el: "#q-app",
        data: {
          splitterModel: 50
        }
      });
    </script>
  </body>
</html>

to add the component to add 2 side by side panels.

splitterModel sets the percentage of the screen that the left panel takes up.

It’s bound to v-model to let us set the size of the left panel.

The before slot has the content for the left panel.

And the after slot has the content for the right panel.

Conclusion

We can add spacers, spinners, and split-screen panels into our Vue app with Quasar.

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