NativeScript Material Tabs

Material Design's Tabs component for NativeScript.

Contents

1. Installation
2. Changelog
3. FAQ
4. Usage
   • Plain NativeScript
   • Angular
   • Vue
   • React
5. API

ns plugin add @nativescript-community/ui-material-tabs

Be sure to run a new build after adding plugins to avoid any issues.

Changelog

FAQ

Usage

Plain NativeScript

IMPORTANT: Make sure you include xmlns:mds="@nativescript-community/ui-material-tabs" on the Page element.

XML

<Page xmlns:mdt="@nativescript-community/ui-material-tabs">
    <mdt:Tabs selectedIndex="1">
        <!-- The bottom tab UI is created via TabStrip (the containier) and TabStripItem (for each tab)-->
        <mdt:TabStrip>
            <mdt:TabStripItem>
                <Label text="Home"></Label>
                <Image src="font://&#xf015;" class="fas"></Image>
            </TabStripItem>
            <mdt:TabStripItem> class="special">
                <Label text="Account"></Label>
                <Image src="font://&#xf007;" class="fas"></Image>
            </mdt:TabStripItem>
            <mdt:TabStripItem> class="special">
                <Label text="Search"></Label>
                <Image src="font://&#xf00e;" class="fas"></Image>
            </mdt:TabStripItem>
        </mdt:TabStrip>

        <!-- The number of TabContentItem components should corespond to the number of TabStripItem components -->
        <mdt:TabContentItem>
            <GridLayout>
                <Label text="Home Page" class="h2 text-center"></Label>
            </GridLayout>
        </mdt:TabContentItem>
        <mdt:TabContentItem>
            <GridLayout>
                <Label text="Account Page" class="h2 text-center"></Label>
            </GridLayout>
        </mdt:TabContentItem>
        <mdt:TabContentItem>
            <GridLayout>
                <Label text="Search Page" class="h2 text-center"></Label>
            </GridLayout>
        </mdt:TabContentItem>
    </mdt:Tabs>
</Page>

CSS

Tabs.bottom-nav {
    background-color: orangered;
    color: gold;
    font-size: 18;
}

TabStripItem.tabstripitem-active {
    background-color: teal;
}

TabStripItem.tabstripitem-active:active {
    background-color: yellowgreen;
}

TabContentItem.first-tabcontent {
    background-color: seashell;
    color: olive;
}
TabContentItem.second-tabcontent {
    background-color: slategray;
    color: aquamarine;
}
TabContentItem.third-tabcontent {
    background-color: blueviolet;
    color: antiquewhite;
}
Tabs MDTabStrip {
    highlight-color: red;
}

NativeScript + Angular

import { NativeScriptMaterialTabsModule } from "@nativescript-community/ui-material-tabs/angular";

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

    <MDTabs selectedIndex="1">
        <!-- The bottom tab UI is created via TabStrip (the containier) and TabStripItem (for each tab)-->
        <MDTabStrip>
            <MDTabStripItem>
                <Label text="Home"></Label>
                <Image src="font://&#xf015;" class="fas"></Image>
            </MDTabStripItem>
            <MDTabStripItem class="special">
                <Label text="Account"></Label>
                <Image src="font://&#xf007;" class="fas"></Image>
            </MDTabStripItem>
            <MDTabStripItem class="special">
                <Label text="Search"></Label>
                <Image src="font://&#xf00e;" class="fas"></Image>
            </MDTabStripItem>
        </MDTabStrip>

        <!-- The number of TabContentItem components should corespond to the number of TabStripItem components -->
        <MDTabContentItem>
            <GridLayout>
                <Label text="Home Page" class="h2 text-center"></Label>
            </GridLayout>
        </MDTabContentItem>
        <MDTabContentItem>
            <GridLayout>
                <Label text="Account Page" class="h2 text-center"></Label>
            </GridLayout>
        </MDTabContentItem>
        <MDTabContentItem>
            <GridLayout>
                <Label text="Search Page" class="h2 text-center"></Label>
            </GridLayout>
        </MDTabContentItem>
    </MDTabs>

NativeScript + Vue

import TabsPlugin from '@nativescript-community/ui-material-tabs/vue';

Vue.use(TabsPlugin);

<MDTabs selectedIndex="1">
        <!-- The bottom tab UI is created via TabStrip (the containier) and TabStripItem (for each tab)-->
        <MDTabStrip>
            <MDTabStripItem>
                <Label text="Home"></Label>
                <Image src="font://&#xf015;" class="fas"></Image>
            </MDTabStripItem>
            <MDTabStripItem class="special">
                <Label text="Account"></Label>
                <Image src="font://&#xf007;" class="fas"></Image>
            </MDTabStripItem>
            <MDTabStripItem class="special">
                <Label text="Search"></Label>
                <Image src="font://&#xf00e;" class="fas"></Image>
            </MDTabStripItem>
        </MDTabStrip>

        <!-- The number of TabContentItem components should corespond to the number of TabStripItem components -->
        <MDTabContentItem>
            <GridLayout>
                <Label text="Home Page" class="h2 text-center"></Label>
            </GridLayout>
        </MDTabContentItem>
        <MDTabContentItem>
            <GridLayout>
                <Label text="Account Page" class="h2 text-center"></Label>
            </GridLayout>
        </MDTabContentItem>
        <MDTabContentItem>
            <GridLayout>
                <Label text="Search Page" class="h2 text-center"></Label>
            </GridLayout>
        </MDTabContentItem>
    </MDTabs>

NativeScript + React

First, register the component before any of your React NativeScript app renders. A good place to put this code is in your entrypoint file (which may be called src/app.ts or similar), before the ReactNativeScript.start function is called. Here's how to install it:

import { registerTabNavigationBase } from '@nativescript-community/ui-material-core/tab-navigation-base/react';
import { registerTabs } from '@nativescript-community/ui-material-tabs/react';

registerTabNavigationBase();
registerTabs();

Normally it would be best to use this component via the tabNavigatorFactory() API exported by React NativeScript Navigation, as it makes nested navigation easy, but here's how to use it directly:

import * as React from 'react';

export function Tabs() {
    const [selectedIndex, setSelectedIndex] = React.useState(0);

    return (
        <tabs
            selectedIndex={selectedIndex}
            onSelectedIndexChanged={(args) => {
                setSelectedIndex(args.newIndex);
            }}
            style={{ backgroundColor: 'orange' }}
        >
            {/* The bottomTab UI is created via tabStrip (the container) and tabStripItem (for each tab) */}
            <tabStrip nodeRole="tabStrip" style={{ backgroundColor: 'red' }}>
                <tabStripItem nodeRole="items">
                    <label nodeRole="label">Home</label>
                    <image nodeRole="image" src="font://&#xf015;" className="fas" />
                </tabStripItem>
                <tabStripItem nodeRole="items">
                    <label nodeRole="label">Account</label>
                    <image nodeRole="image" src="font://&#xf007;" className="fas" />
                </tabStripItem>
                <tabStripItem nodeRole="items">
                    <label nodeRole="label">Search</label>
                    <image nodeRole="image" src="font://&#xf00e;" className="fas" />
                </tabStripItem>
            </tabStrip>

            {/* The number of tabContentItem components should corespond to the number of TabStripItem components */}
            <tabContentItem nodeRole="items">
                <gridLayout style={{ backgroundColor: 'blue' }}>
                    <label style={{ color: 'white' }}>Home Page</label>
                </gridLayout>
            </tabContentItem>
            <tabContentItem nodeRole="items">
                <gridLayout style={{ backgroundColor: 'cyan' }}>
                    <label style={{ color: 'black' }}>Account Page</label>
                </gridLayout>
            </tabContentItem>
            <tabContentItem nodeRole="items">
                <gridLayout style={{ backgroundColor: 'magenta' }}>
                    <label style={{ color: 'black' }}>Search Page</label>
                </gridLayout>
            </tabContentItem>
        </tabs>
    );
}

Troubleshooting

If you see an error like this when writing e.g. <tabs> into your JSX:

Property 'tabs' does not exist on type 'JSX.IntrinsicElements'.ts(2339)

Make sure that you have:

1. Installed the react-nativescript npm module.
2. Installed the @types/react npm module, strictly with the exact version provided in the React NativeScript starter template.
3. Run the postinstall script that comes with the React NativeScript template – npm run postinstall – to patch @types/react.
4. Registered the component as described above (i.e. import and run the registerTabNavigationBase() and registerTabs() methods).
5. If using Visual Studio Code, option-click the import @nativescript-community/ui-material-tabs/react to jump to the file; opening the file will force it to load its provided typings.

API

Attributes

| Name | Type | Description | | ------------- | :-------------: | -----: | | items | Array | Gets or sets the items of the BottomNavigation. | |selectedIndex | number | Gets or sets the selectedIndex of the BottomNavigation. | |swipeEnabled | boolean | Gets or sets the swipe enabled state of the Tabs. | |offscreenTabLimit | number | Gets or sets the number of offscreen preloaded tabs of the Tabs. | |tabStrip | TabStrip | Gets or sets the tab strip of the BottomNavigation. | |tabsPosition | "top", "bottom" | Gets or sets the position state of the Tabs. Default value: top |

Events

| Name | Description | | ------------- | -------------: | | selectedIndexChanged | Emitted when the selectedIndex property is changed. | | loaded | Emitted when the view is loaded. | | unloaded | Emitted when the view is unloaded. | | layoutChanged | Emitted when the layout bounds of a view changes due to layout processing. |