import * as React from 'react' ; import { Animated , Easing } from 'react-native' ; import { SpinnerProps , defaultProps } from './SpinnerProps' ; import AnimationContainer from './AnimationContainer' ; import { loop } from './utils' ; export default class Pulse extends React . Component < SpinnerProps > { static defaultProps = defaultProps ; render ( ) { const { size , color , style , animating , hidesWhenStopped , ... rest } = this . props ; return ( < AnimationContainer initAnimation = { ( ) => ( { pulse : ( value ) => ( { values : [ value ] , animation : loop ( { duration : 1200 , value : value , easing : Easing . bezier ( 0.455 , 0.03 , 0.515 , 0.955 ) } ) } ) } ) } animating = { animating } > { ( values ) => ( < Animated . View style = { [ { width : size , height : size , backgroundColor : color , borderRadius : size / 2 , opacity : ! animating && hidesWhenStopped ? 0 : values . pulse [ 0 ] . interpolate ( { inputRange : [ 0 , 100 ] , outputRange : [ 1 , 0 ] } ) , transform : [ { scale : values . pulse [ 0 ] . interpolate ( { inputRange : [ 0 , 100 ] , outputRange : [ 0.01 , 1 ] } ) } , ] } , style , ] } { ... rest } />)} < /AnimationContainer>); } }