Nativescript Material Bottom Navigation Bar

Nativescript plugin for Android & iOS to have the Bottom Navigation Bar following the Material Design Guidelines.

Contents

1. Installation
2. Usage with Javascript
3. Usage with Angular
4. Usage with Vue
5. Css Styling
6. API

Prerequisites / Requirements

You need the version of NS6 or later to use this plugin.

Installation

tns plugin add nativescript-material-bottomnavigationbar

NEW FEATURES

• Badge now are supported using the method: showBadge(index, value)
  • NOTE: if you want to show a badge as a red dot no value should be passed to the function.

Usage

Before start using the plugin you need to add the icons for Android & iOS in your App_Resources directory.

XML

You can set the tabs using the tabs property

<Page xmlns="http://schemas.nativescript.org/tns.xsd"
      xmlns:mdc="nativescript-material-bottomnavigationbar"
      loaded="pageLoaded"
      class="page">
    <GridLayout rows="*, auto">
        <StackLayout row="0">
            <Label text="content"></Label>
        </StackLayout>
        <mdc:BottomNavigationBar
          tabs="{{ tabs }}"
          activeColor="green"
          inactiveColor="red"
          backgroundColor="black"
          tabSelected="tabSelected"
          row="1"
        ></mdc:BottomNavigationBar>
    </GridLayout>
</Page>

import { EventData } from '@nativescript/core/data/observable';
import { Page } from '@nativescript/core/ui/page';
import { BottomNavigationTab, TabSelectedEventData } from 'nativescript-material-bottomnavigationbar';

// Event handler for Page 'loaded' event attached in main-page.xml
export function pageLoaded(args: EventData) {
    // Get the event sender
    let page = <Page>args.object;
    page.bindingContext = {
        tabs: [
            new BottomNavigationTab({ title: 'First', icon: 'res://ic_home' }),
            new BottomNavigationTab({
                title: 'Second',
                icon: 'res://ic_view_list',
                isSelectable: false
            }),
            new BottomNavigationTab({ title: 'Third', icon: 'res://ic_menu' })
        ]
    };
}

export function tabSelected(args: TabSelectedEventData) {
    console.log('tab selected ' + args.newIndex);
}

or you can add the tabs directly in your xml view

<Page xmlns="http://schemas.nativescript.org/tns.xsd"
      xmlns:mdc="nativescript-material-bottomnavigationbar"
      loaded="pageLoaded"
      class="page">
    <GridLayout rows="*, auto">
        <StackLayout row="0">
            <Label text="content"></Label>
        </StackLayout>
        <mdc:BottomNavigationBar
          activeColor="green"
          inactiveColor="red"
          backgroundColor="black"
          tabSelected="tabSelected"
          row="1"
        >
          <mdc:BottomNavigationTab title="First" icon="res://ic_home" />
          <mdc:BottomNavigationTab title="Second" icon="res://ic_view_list" isSelectable="false" />
          <mdc:BottomNavigationTab title="Third" icon="res://ic_menu" />
        </mdc:BottomNavigationBar>
    </GridLayout>
</Page>

Angular

First you need to include the NativeScriptMaterialBottomNavigationBarModule in your app.module.ts`

import { NativeScriptMaterialBottomNavigationBarModule} from "nativescript-material-bottomnavigationbar/angular";

@NgModule({
    imports: [
        NativeScriptMaterialBottomNavigationBarModule
    ],
    ...
})

<GridLayout rows="*, auto">
    <StackLayout row="0">
        <label text="content"></label>
    </StackLayout>
    <BottomNavigationBar
        [tabs]="tabs"
        activeColor="red"
        inactiveColor="yellow"
        backgroundColor="black"
        (tabSelected)="onBottomNavigationTabSelected($event)"
        (tabPressed)="onBottomNavigationTabPressed($event)"
        row="1"
    ></BottomNavigationBar>
</GridLayout>

or you can declare the BottomNavigationTab in your html directly

<GridLayout rows="*, auto">
    <StackLayout row="0">
        <label text="content"></label>
    </StackLayout>
    <BottomNavigationBar
        activeColor="red"
        inactiveColor="yellow"
        backgroundColor="black"
        (tabSelected)="onBottomNavigationTabSelected($event)"
        (tabPressed)="onBottomNavigationTabPressed($event)"
        row="1"
    >
        <BottomNavigationTab title="First" icon="res://ic_home"></BottomNavigationTab>
        <BottomNavigationTab title="Second" icon="res://ic_view_list" [isSelectable]="false"></BottomNavigationTab>
        <BottomNavigationTab title="Third" icon="res://ic_menu"></BottomNavigationTab>
    </BottomNavigationBar>
</GridLayout>

Vue

If you want to use this plugin with Vue, do this in your app.js or main.js:

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

Vue.use(BottomNavigationBar);

This will install and register BottomNavigationBar and BottomNavigationTab components to your Vue instance and now you can use the plugin as follows:

<GridLayout rows="*, auto">
    <StackLayout row="0">
        <label text="content"></label>
    </StackLayout>
    <MDBottomNavigationBar activeColor="red" inactiveColor="yellow" backgroundColor="black" @tabSelected="onBottomNavigationTabSelected" row="1">
        <MDBottomNavigationTab title="First" icon="ic_home" />
        <MDBottomNavigationTab title="Second" icon="ic_view_list" isSelectable="false" />
        <MDBottomNavigationTab title="Third" icon="ic_menu" />
    </MDBottomNavigationBar>
</GridLayout>

You can find more information of how to use nativescript plugins with Vue Here!

CSS Styling

You can also use your css file to set or change the activeColor, inactiveColor & backgroundColor of the Bottom Navigation Bar.

.botom-nav {
    active-color: green;
    inactive-color: black;
    background-color: blue;
}

API

1. BottomNavigationBar
2. BottomNavigationTab

• Properties (bindable): Properties settable through XML/HTML
• Properties (internal): Properties accessible through JS/TS instance
• Events: Event properties settable thew XML/HTML

Bottom Navigation Bar

Properties (bindable)

Properties settable through XML/HTML

Properties (internal)

Properties accessible through JS/TS instance

Events

Event properties settable thew XML/HTML

Methods

Methods accessible through JS/TS instance

Bottom Navigation Tab

Properties (bindable)

Properties settable through XML/HTML