@nativescript-community/tween
v0.0.15
Published
Natively wraps tween.js, a tweening engine for easy animations, incorporating optimized Robert Penner's equations
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NativeScript Tween
A NativeScript plugin that natively wraps tween.js, a tweening engine for easy animations, incorporating optimized Robert Penner's equations.
| | | | --- | ----------- | | iOS Demo | Android Demo |
Table of Contents
Installation
Run the following command from the root of your project:
ns plugin add @nativescript-community/tween
Configuration
No futher configuration is needed.
API
This plugin exports the same API as tween.js
.
Refer to the offical tween.js user guide additional examples and information.
For now grouping, chaining, repeating... are not supported. Just basic tweening.
Any view property that is a number should technically be able to be tweened. All of these have not been tested, but some of the common ones that work are:
width
height
rotate
scaleX
scaleY
translateX
translateY
opacity
The following are available tween easing options:
TWEEN.Easing.Linear.None
TWEEN.Easing.Quadratic.In
TWEEN.Easing.Quadratic.Out
TWEEN.Easing.Cubic.In
TWEEN.Easing.Cubic.Out
TWEEN.Easing.Quartic.In
TWEEN.Easing.Quartic.Out
TWEEN.Easing.Quintic.In
TWEEN.Easing.Quintic.Out
TWEEN.Easing.Sinusoidal.In
TWEEN.Easing.Sinusoidal.Out
TWEEN.Easing.Exponential.In
TWEEN.Easing.Exponential.Out
TWEEN.Easing.Circular.In
TWEEN.Easing.Circular.Out
TWEEN.Easing.Elastic.In
TWEEN.Easing.Elastic.Out
TWEEN.Easing.Back.In
TWEEN.Easing.Back.Out
TWEEN.Easing.Bounce.In
TWEEN.Easing.Bounce.Out
Usage in Angular
The following is a very simple example of getting tweens to run in your Angular project.
Create a view that you would like to animate as well as a button to trigger it in your component's HTML file.
<StackLayout>
<Button text="Start Animation" (tap)="startTween()" verticalAlignment="top"></Button>
<AbsoluteLayout #box width="30" height="30" backgroundColor="red" horizontalAlignment="center" verticalAlignment="center"></AbsoluteLayout>
</StackLayout>
Reference the view you want to animate in your component's typescript file with the following (and add required imports):
boxRef: AbsoluteLayout;
@ViewChild("box", { static: true }) boxElementRef: ElementRef;
ngOnInit(): void {
this.boxRef = this.boxElementRef.nativeElement;
}
Import the tween module in your component's typescript file:
import { TWEEN } from '@nativescript-community/tween';
Create a function that will contain the call to run the tween.
startTween() {
new TWEEN.Tween({ value: 30 })
.easing(TWEEN.Easing.Quadratic.In)
.to({ value: 300 }, 1000)
.onStart(() => {
console.log("The tween has stated...");
})
.onComplete(() => {
console.log("The tween has completed...");
})
.onUpdate(obj => {
this.boxRef.width = obj.value;
})
.start();
}
That should be all you need! Now, when you tap the button Start Animation
, the box's width should go from 30
to 300
.
Look in the demo-ng
directory for a more advanced demo.
Usage in Vue
The following is a very simple example of getting tweens to run in your Vue project.
Create a view that you would like to animate as well as a button to trigger it.
<StackLayout>
<Button text="Start Animation" @tap="startTween" />
<AbsoluteLayout ref="box" width="30" height="30" backgroundColor="red" horizontalAlignment="center" verticalAlignment="center"></AbsoluteLayout>
</StackLayout>
Reference the view you want to animate in your component computed
section:
// ...
computed: {
boxRef(){
return this.$refs.box.nativeView;
}
},
// ...
Import the tween module in your component:
import { TWEEN } from '@nativescript-community/tween';
Create a function that will contain the call to run the tween.
startTween() {
new TWEEN.Tween({ value: 30 })
.easing(TWEEN.Easing.Quadratic.In)
.to({ value: 300 }, 1000)
.onStart(() => {
console.log("The tween has stated...");
})
.onComplete(() => {
console.log("The tween has completed...");
})
.onUpdate(obj => {
this.boxRef.width = obj.value;
})
.start();
}
That should be all you need! Now, when you tap the button Start Animation
, the box's width should go from 30
to 300
.
Look in the demo-vue
directory for a more advanced demo.
Usage in Svelte
The following is a very simple example of getting tweens to run in your Svelte project.
Create a view that you would like to animate as well as a button to trigger it.
<stackLayout>
<button text="Start Animation" on:tap="{startTween}" />
<absoluteLayout bind:this="{boxRef}" width="30" height="30" backgroundColor="red" horizontalAlignment="center" verticalAlignment="center"></absoluteLayout>
</stackLayout>
Reference the view you want to animate in your component.
let boxRef: AbsoluteLayout;
onMount(() => {
boxRef = boxRef.nativeView;
})
Import the tween module in your component:
import { TWEEN } from '@nativescript-community/tween';
Create a function that will contain the call to run the tween.
function startTween() {
new TWEEN.Tween({ value: 30 })
.easing(TWEEN.Easing.Quadratic.In)
.to({ value: 300 }, 1000)
.onStart(() => {
console.log("The tween has stated...");
})
.onComplete(() => {
console.log("The tween has completed...");
})
.onUpdate(obj => {
boxRef.width = obj.value;
})
.start();
}
That should be all you need! Now, when you tap the button Start Animation
, the box's width should go from 30
to 300
.
Look in the demo-svelte
directory for a more advanced demo.
Usage in React
The following is a very simple example of getting tweens to run in your React project.
Create a view that you would like to animate as well as a button to trigger it.
<stackLayout>
<button text="Start Animation" onTap={startTween} />
<absoluteLayout ref={boxRef} width="30" height="30" backgroundColor="red" horizontalAlignment="center" verticalAlignment="middle"></absoluteLayout>
</stackLayout
Reference the view you want to animate in your component.
const boxRef = React.useRef<NSVElement<AbsoluteLayout>>(null);
Import the tween module in your component:
import { TWEEN } from '@nativescript-community/tween';
Create a function that will contain the call to run the tween.
function startTween() {
new TWEEN.Tween({ value: 30 })
.easing(TWEEN.Easing.Quadratic.In)
.to({ value: 300 }, 1000)
.onStart(() => {
console.log("The tween has stated...");
})
.onComplete(() => {
console.log("The tween has completed...");
})
.onUpdate(obj => {
boxRef.current!.nativeView.width = obj.value;
})
.start();
}
That should be all you need! Now, when you tap the button Start Animation
, the box's width should go from 30
to 300
.
Look in the demo-react
directory for a more advanced demo
Demos
This repository includes Angular, Vue.js, Svelte, and React demos. In order to run these execute the following in your shell:
$ git clone https://github.com/@nativescript-community/tween
$ cd tween
$ npm i
$ npm run build
$ cd demo-ng # or demo-vue or demo-svelte or demo-react
$ ns run ios|android