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Fix: undefined is not an object (evaluating sceneConfig.animationInterpolators) #30

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Fix: undefined is not an object (evaluating sceneConfig.animationInterpolators) #30

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5 changes: 2 additions & 3 deletions src/Navigator.js
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Original file line number Diff line number Diff line change
Expand Up @@ -1000,16 +1000,15 @@ var Navigator = createReactClass({

_transitionSceneStyle: function(fromIndex, toIndex, progress, index) {
var viewAtIndex = this._sceneRefs[index];
if (viewAtIndex === null || viewAtIndex === undefined) {
return;
}
if (!viewAtIndex) return;
// Use toIndex animation when we move forwards. Use fromIndex when we move back
var sceneConfigIndex = fromIndex < toIndex ? toIndex : fromIndex;
var sceneConfig = this.state.sceneConfigStack[sceneConfigIndex];
// this happens for overswiping when there is no scene at toIndex
if (!sceneConfig) {
sceneConfig = this.state.sceneConfigStack[sceneConfigIndex - 1];
}
if (!sceneConfig) return;
var styleToUse = {};
var useFn = index < fromIndex || index < toIndex ?
sceneConfig.animationInterpolators.out :
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