CODEWITHSUNDEEP
vuejs2nativescriptnativescript-vue
Tobias Schäfer
Tobias Schäfer

Reputation: 1358

Nativescript Vue: access class functions

I'm currently building an app with Nativescript and Vuejs. I use the Material BottomNavigationBar (https://github.com/Akylas/nativescript-material-components/blob/master/packages/nativescript-material-bottomnavigationbar/README.md).
There are two methods included i need to use:

Now I need to call these methods and there is the issue. How do I do that?

My code:
main.js

import BottomNavigationBar from 'nativescript-material-bottomnavigationbar/vue';
import BottomNavigationTab from 'nativescript-material-bottomnavigationbar/vue';

Vue.use(BottomNavigationBar);
Vue.use(BottomNavigationTab);

Footer.vue:

<BottomNavigationBar titleVisibility="Never" activeColor="#0285ff" inactiveColor="#5c687c"
                                     backgroundColor="#f5f5f5" @tabSelected="onBottomNavigationTabSelected" row="1"
                                     class="footer" ref="navBar" :selectedTab="2">
<BottomNavigationTab icon="~/assets/images/logo.png"/>
<BottomNavigationTab icon="~/assets/images/chat.png"/>
<BottomNavigationTab icon="~/assets/images/settings.png"/>
</BottomNavigationBar>
...
mounted() {
this.$refs.navBar.nativeView.selectTab(2)
}

This is not working and says that nativeView is undefined.

Is there a way to access these class methods?

Regards,
Tobias

Upvotes: 1

Views: 386

Answers (3)

Sombriks
Sombriks

Reputation: 3622

You can put a ref="mybar" in the tags and then find it under this.$refs.mybar inside your component script.

Just like what was made on this example.

See vue documentation for more details.

Upvotes: 0

Tobias Sch&#228;fer
Tobias Sch&#228;fer

Reputation: 1358

Found the solution!

It is necessary to wait until the component is loaded.

My way now:

Component:

<BottomNavigationBar titleVisibility="Never" activeColor="#0285ff" inactiveColor="#5c687c"
                             backgroundColor="#f5f5f5" @tabPressed="pressedNavigation" @tabSelected="pressedNavigation"
                             row="1" class="footer" ref="navBar" @loaded="loaded">
            <BottomNavigationTab icon="~/assets/images/logo.png"/>
            <BottomNavigationTab icon="~/assets/images/chat.png"/>
            <BottomNavigationTab icon="~/assets/images/settings.png"/>
</BottomNavigationBar>

Method:

 loaded(args) {
     this.loadedNavBar = true;
     this.navBar = args.object
     if (this.selectedTab !== null) this.navBar.selectTab(this.selectedTab)
  },

I select the index and store it in a varaible. When the component is loaded I can adjust the selection.

Upvotes: 1

Mennolp
Mennolp

Reputation: 424

Your component has yet to load when mounted gets triggered. I'd suggest using a loaded event on your navbar component and then trigger your method.

<BottomNavigationBar titleVisibility="Never" activeColor="#0285ff" inactiveColor="#5c687c"
                                 backgroundColor="#f5f5f5" @tabSelected="onBottomNavigationTabSelected" row="1" @loaded="onNavbarLoaded"
                                 class="footer" ref="navBar" :selectedTab="2">

    <BottomNavigationTab icon="~/assets/images/logo.png"/>
    <BottomNavigationTab icon="~/assets/images/chat.png"/>
    <BottomNavigationTab icon="~/assets/images/settings.png"/>
</BottomNavigationBar>

onNavbarLoaded(evt) {
    this.$refs.navBar.nativeView.selectTab(2);
    // I am not sure if you actually have to easy nativeView..
    this.$refs.navBar.selectTab(2);
}

Upvotes: 0

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