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This repo only supports NativeScript pre-6.0. The latest version of the plugin supporting NS 6+ is availble as part of ProPlugins.

NativeScript GridView widget

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A NativeScript GridView widget. The GridView displays data in separate cells, each cell representing one data item. For iOS wraps up UICollectionView and for Android wraps up RecyclerView

Screenshot

Screenshot of Android

Installation

Run the following command from the root of your project:

tns plugin add nativescript-grid-view

This command automatically installs the necessary files, as well as stores nativescript-grid-view as a dependency in your project's package.json file.

Configuration

There is no additional configuration needed!

API

Events

Static Properties

Instance Properties

Instance Methods

Usage

You need to add xmlns:gv="nativescript-grid-view" to your page tag, and then simply use <gv:GridView/> in order to add the widget to your page. Use <gv:Gridview.itemTemplate/> to specify the template for each cell:

<!-- test-page.xml -->
<Page xmlns="http://schemas.nativescript.org/tns.xsd" xmlns:gv="nativescript-grid-view" loaded="pageLoaded">
  <GridLayout>
    <gv:GridView items="{{ items }}" colWidth="24%" rowHeight="15%" padding="5" itemTap="gridViewItemTap" itemLoading="gridViewItemLoading" loadMoreItems="gridViewLoadMoreItems">
      <gv:GridView.itemTemplate>
        <GridLayout backgroundColor="#33ffff" style="margin: 5">
          <Label text="{{ value }}" verticalAlignment="center"/>
        </GridLayout>
      </gv:GridView.itemTemplate>
    </gv:GridView>
  </GridLayout>
</Page>

// test-page.ts
import { EventData, Observable } from "data/observable";
import { ObservableArray } from "data/observable-array";
import { Page } from "ui/page";

import { GridItemEventData } from "nativescript-grid-view";

let viewModel: Observable;

export function pageLoaded(args: EventData) {
    const page = args.object as Page;
    const items = new ObservableArray();

    for (let loop = 0; loop < 200; loop++) {
        items.push({ value: "test " + loop.toString() });
    }
    viewModel = new Observable();
    viewModel.set("items", items);

    page.bindingContext = viewModel;
}

export function gridViewItemTap(args: GridItemEventData) {
    console.log("tap index " + args.index.toString());
}

export function gridViewItemLoading(args: GridItemEventData) {
    console.log("item loading " + args.index.toString());
}

export function gridViewLoadMoreItems(args: EventData) {
    console.log("load more items");
}

You can also have multiple templates the same way you add them in the builtin ListView control:

<gv:GridView id="gv" row="0" class="{{ cssClass }}" items="{{ items }}" 
                colWidth="{{ colWidth }}" rowHeight="{{ rowHeight }}" itemTemplateSelector="templateSelector"
                itemTap="gridViewItemTap" itemLoading="gridViewItemLoading" loadMoreItems="gridViewLoadMoreItems">
    <gv:GridView.itemTemplates>
        <template key="odd">
            <GridLayout backgroundColor="#33ffff" style="margin: 10 10 0 0">
                <Label text="{{ value }}" verticalAlignment="center"/>
            </GridLayout>
        </template>

        <template key="even">
            <GridLayout backgroundColor="#33ffff" rows="auto, auto" style="margin: 10 10 0 0">
                <Label row="0" text="{{ value }}" verticalAlignment="center"/>
                <Label row="1" text="{{ value }}" verticalAlignment="center"/>
            </GridLayout>
        </template>
    </gv:GridView.itemTemplates>
</gv:GridView>

export function templateSelector(item: any, index: number, items: any) {
    return index % 2 === 0 ? "even" : "odd";
}

Usage in Angular

Import GridViewModule in your NgModule:

import { GridViewModule } from 'nativescript-grid-view/angular';

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

Example Usage

// app.module.ts
import { GridViewModule } from "nativescript-grid-view/angular";

@NgModule({
    bootstrap: [
        AppComponent
    ],
    imports: [
        NativeScriptModule,
        AppRoutingModule,
        GridViewModule,
    ],
    declarations: [
        AppComponent,
        ItemsComponent,
        ItemDetailComponent
    ],
    providers: [
        ItemService
    ],
    schemas: [
        NO_ERRORS_SCHEMA
    ]
})
export class AppModule { }

<!-- my.component.html -->
<GridLayout class="page">
  <GridView [items]="items" colWidth="30%" rowHeight="100">
    <ng-template let-item="item" let-odd="odd">
      <StackLayout margin="10" [nsRouterLink]="['/item', item.id]" borderColor="blue" borderWidth="2" borderRadius="5" verticalAlignment="stretch" class="list-group-item" [class.odd]="odd">
        <Label verticalAlignment="center" [text]="item.name" class="list-group-item-text" textWrap="true"></Label>
      </StackLayout>
    </ng-template>
  </GridView>
</GridLayout>

If you want to use multiple item templates, you can do that very similarly to how you do it for the builtin ListView control.

<GridView row="1" [items]="items" colWidth="33%" rowHeight="100" [itemTemplateSelector]="templateSelector">
    <ng-template nsTemplateKey="Defender" let-item="item" let-odd="odd">
        <StackLayout [nsRouterLink]="['/item', item.id]" borderColor="blue" borderWidth="2" borderRadius="5" verticalAlignment="stretch" class="list-group-item" [class.odd]="odd">
        <Label verticalAlignment="center" [text]="item.name" class="list-group-item-text" textWrap="true"></Label>
        </StackLayout>
    </ng-template>

    <ng-template nsTemplateKey="Goalkeeper" let-item="item" let-odd="odd">
        <StackLayout [nsRouterLink]="['/item', item.id]" borderColor="black" borderWidth="2" borderRadius="5" verticalAlignment="stretch" class="list-group-item" [class.odd]="odd">
        <Label verticalAlignment="center" [text]="item.name" class="list-group-item-text" textWrap="true"></Label>
        </StackLayout>
    </ng-template>

    <ng-template nsTemplateKey="Midfielder" let-item="item" let-odd="odd">
        <StackLayout [nsRouterLink]="['/item', item.id]" borderColor="yellow" borderWidth="2" borderRadius="5" verticalAlignment="stretch" class="list-group-item" [class.odd]="odd">
        <Label verticalAlignment="center" [text]="item.name" class="list-group-item-text" textWrap="true"></Label>
        </StackLayout>
    </ng-template>

    <ng-template nsTemplateKey="Forward" let-item="item" let-odd="odd">
        <StackLayout [nsRouterLink]="['/item', item.id]" borderColor="red" borderWidth="2" borderRadius="5" verticalAlignment="stretch" class="list-group-item" [class.odd]="odd">
        <Label verticalAlignment="center" [text]="item.name" class="list-group-item-text" textWrap="true"></Label>
        </StackLayout>
    </ng-template>
</GridView>

Demos

This repository includes both Angular and plain NativeScript demos. In order to run those execute the following in your shell:

$ git clone https://github.com/peterstaev/nativescript-grid-view
$ cd nativescript-grid-view
$ npm install
$ npm run demo-ios

This will run the plain NativeScript demo project on iOS. If you want to run it on Android simply use the -android instead of the -ios sufix.

If you want to run the Angular demo simply use the demo-ng- prefix instead of demo-.

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