Utilizing Vuetify 2 breakpoints in script setup syntax: A beginner's guide

As I access the current Vue instance and retrieve the $vuetify object with all breakpoints and properties, I encounter an issue where the breakpoints do not update when changing the screen size. It seems to lack reactivity.

Even after attempting to use computed properties, the issue persists:

import { getCurrentInstance } from 'vue'

const vuetify = computed(() => (getCurrentInstance()?.proxy as any).$vuetify);

I am looking for a way to utilize $vuetify.breakpoints and have it adjust according to the screen size changes, similar to how it functions in Vue 3 options syntax: this.$vuetify.breakpoints. I am currently transitioning from Vue 2 to 3 using script setup syntax (Composition API).

Any insights or solutions would be greatly appreciated. Thank you.

javascriptvue.jsvuetify.jsvuejs3

Answer №1

If you want to utilize Vuetify in a composable manner, you can do so by implementing the following code snippet:

 // @composables/useVuetify
 import { getCurrentInstance } from 'vue';

  export const useVuetify = () => {
   const vm = getCurrentInstance();
   return vm.proxy?.$vuetify || undefined;
 }

After defining the above composable function, you can then use it as shown below:

 // Your component
 const vuetify = useVuetify();
 const currentBreakpointName = computed(() => vuetify.breakpoint.name);

When accessing this information in your script, remember to add .value: currentBreakpointName.value

For template usage, you can directly reference the variable without .value: 

v-if="currentBreakpointName === 'xl'"
, 
:value="currentBreakpointName"
, or simply {{ currentBreakpointName }}

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