NativeScript-Lottie

NativeScript plugin to expose Airbnb Lottie for awesome animations.

Changelog

All notable changes to this project will be documented in the changelog.

Demo Screen

The .gif does not do the fluid animations justice

Installation

To install execute:

NativeScript Version 7+:

ns plugin add nativescript-lottie

NativeScript Version prior to 7:

tns plugin add nativescript-lottie@4.0.1

Usage

NativeScript (Core)

XML

1<Page
2    xmlns="http://schemas.nativescript.org/tns.xsd"
3    xmlns:Lottie="nativescript-lottie" navigatingTo="navigatingTo" class="page">
4    <StackLayout>
5        <Lottie:LottieView src="PinJump.json" height="130" loop="true" autoPlay="true" loaded="yourLoadedEvent" />
6    </StackLayout>
7</Page>

TS

1import { LottieView } from "nativescript-lottie";
2
3public yourLoadedEvent(args) {
4    this._myLottie = args.object as LottieView; /// this is the instance of the LottieAnimationView
5    this._myLottie.loop = false; // to get the completionBlock to fire the animation can not be looping because then it will never "complete"
6    this._myLottie.completionBlock = (bool) => {
7        console.log('lottie animaton complete', bool);
8    }
9}

---

NativeScript Angular

XML

1<StackLayout>
2    <LottieView width="100" height="150" [src]="src" [loop]="loop" [autoPlay]="autoPlay" (loaded)="lottieViewLoaded($event)"></LottieView>
3</StackLayout>

Component

1import { Component } from '@angular/core';
2import { registerElement } from '@nativescript/angular';
3import { LottieView } from 'nativescript-lottie';
4
5registerElement('LottieView', () => LottieView);
6
7@Component({
8  templateUrl: 'home.component.html',
9  moduleId: module.id
10})
11export class HomeComponent {
12  public loop: boolean = true;
13  public src: string;
14  public autoPlay: boolean = true;
15  public animations: Array<string>;
16
17  private _lottieView: LottieView;
18
19  constructor() {
20    this.animations = [
21      'Mobilo/A.json',
22      'Mobilo/D.json',
23      'Mobilo/N.json',
24      'Mobilo/S.json'
25    ];
26    this.src = this.animations[0];
27  }
28
29  lottieViewLoaded(event) {
30    this._lottieView = <LottieView>event.object;
31    this._myLottie.loop = false; // to get the completionBlock to fire the animation can not be looping because then it will never "complete"
32    this._myLottie.completionBlock = bool => {
33      console.log('lottie animaton complete', bool);
34    };
35  }
36}

---

NativeScript Vue

Bootstrap (probably in app.js)

1Vue.registerElement(
2  'LottieView',
3  () => require('nativescript-lottie').LottieView
4);

Component

1<template>
2    <Page class="page">
3        <StackLayout>
4            <LottieView height="130" src="PinJump.json" :loop="true" :autoPlay="true" @loaded="lottieViewLoaded"></LottieView>
5        </StackLayout>
6    </page
7</template>
8
9<script>
10    export default {
11        methods: {
12            lottieViewLoaded(args) {
13                this._lottieView = args.object;
14            },
15        },
16        data() {
17            return {
18                _lottieView: null,
19            }
20        }
21    };
22</script>

---

Assets

:fire: You can find animations in the sample-effects folder.

Android

Place your animation files in the NS app's app/App_Resources/Android/src/main/assets folder.

Note: In a nativescript-vue project the above folder may not exist. Place the files in platforms/android/app/src/main/assets.

iOS

Place your animations files in your app/App_Resources/iOS/ folder.

Properties (bindable)

Property	Type	Default	Description
autoPlay	boolean	false	Start LottieView animation on load if true.
loop	boolean	false	Loop continuously animation if true.
src	string	null	Animation path to .json file.

Properties

Property	Type	Default	Description
completionBlock	(boolean) => void	null	Completion block to be executed upon completion of the animation. The animation is considered complete when it finishes playing and is no longer looping.
duration	number	null	Get the duration of the animation.
progress	number	0	Get/set the progress of the animation.
speed	number	1	Get/set the speed of the animation.

Methods

Method	Return	Parameters	Description
cancelAnimation	void	None	Pauses the animation for the LottieView instance.
isAnimating	boolean	None	Returns true if the LottieView is animating, else false.
playAnimation	void	None	Plays the animation for the LottieView instance.
playAnimationFromProgressToProgress	void	startProgress, endProgress	Plays the animation for the LottieView instance from the specified start and end progress values (between 0 and 1).
setColorValueDelegateForKeyPath	void	value, keyPath	Sets the provided color value on each property that matches the specified keyPath in the LottieView instance.
setOpacityValueDelegateForKeyPath	void	value, keyPath	Sets the provided opacity value (0 - 1) on each property that matches the specified keyPath in the LottieView instance.

Contributors

bradmartin	NathanWalker	rhanb	HamdiWanis

itstheceo	mudlabs

Contributing

1. Fork and clone the repository
2. cd nativescript-lottie && npm run demo.android (or demo.ios)
3. Changes in the src directory of the plugin will sync to the demo app for testing changes.
4. Create a PR with proposed changes.