react-native-reanimated
Version:
More powerful alternative to Animated library for React Native.
63 lines (60 loc) • 2.75 kB
JavaScript
;
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == typeof i ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != typeof t || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != typeof i) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
import { withSequence, withTiming } from '../../animation';
import { BaseAnimationBuilder } from '../animationBuilder';
/**
* Fades out components from one position and shows them in another. You can modify the behavior by chaining methods like `.duration(500)` or `.delay(500)`.
*
* You pass it to the `layout` prop on [an Animated component](https://docs.swmansion.com/react-native-reanimated/docs/fundamentals/glossary#animated-component).
*
* @see https://docs.swmansion.com/react-native-reanimated/docs/layout-animations/layout-transitions#fading-transition
*/
export class FadingTransition extends BaseAnimationBuilder {
constructor(...args) {
super(...args);
_defineProperty(this, "build", () => {
const delayFunction = this.getDelayFunction();
const callback = this.callbackV;
const delay = this.getDelay();
const duration = this.durationV ?? 500;
return values => {
'worklet';
return {
initialValues: {
opacity: 1,
originX: values.currentOriginX,
originY: values.currentOriginY,
width: values.currentWidth,
height: values.currentHeight
},
animations: {
opacity: delayFunction(delay, withSequence(withTiming(0, {
duration
}), withTiming(1, {
duration
}))),
originX: delayFunction(delay + duration, withTiming(values.targetOriginX, {
duration: 50
})),
originY: delayFunction(delay + duration, withTiming(values.targetOriginY, {
duration: 50
})),
width: delayFunction(delay + duration, withTiming(values.targetWidth, {
duration: 50
})),
height: delayFunction(delay + duration, withTiming(values.targetHeight, {
duration: 50
}))
},
callback
};
};
});
}
static createInstance() {
return new FadingTransition();
}
}
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