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does not invoke not existing methods #46

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does not invoke not existing methods #46

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6 changes: 4 additions & 2 deletions src/AnimatedInterpolation.js
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Expand Up @@ -41,7 +41,7 @@ class AnimatedInterpolation extends AnimatedWithChildren {
}

addListener(callback: ValueListenerCallback): string {
if (!this._parentListener) {
if (!this._parentListener && this._parent.addListener) {
this._parentListener = this._parent.addListener(() => {
for (var key in this._listeners) {
this._listeners[key]({value: this.__getValue()});
Expand All @@ -67,7 +67,9 @@ class AnimatedInterpolation extends AnimatedWithChildren {

__detach(): void {
this._parent.__removeChild(this);
this._parentListener = this._parent.removeListener(this._parentListener);
if (this._parent.removeListener) {
this._parentListener = this._parent.removeListener(this._parentListener);
}
}
}

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