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Fix for freeze with dynamic list content #62

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Fix for freeze with dynamic list content #62

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11 changes: 11 additions & 0 deletions src/index.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -290,6 +290,7 @@ export class ScrollBottomSheet<T extends any> extends Component<Props<T>> {
private didScrollUpAndPullDown: Animated.Node<number>;
private setTranslationY: Animated.Node<number>;
private extraOffset: Animated.Node<number>;
private currentHeight: number
private calculateNextSnapPoint: (
i?: number
) => number | Animated.Node<number>;
Expand Down Expand Up @@ -335,6 +336,7 @@ export class ScrollBottomSheet<T extends any> extends Component<Props<T>> {
const drawerOldGestureState = new Value<GestureState>(-1);

const lastSnapInRange = new Value(1);
this.currentHeight = 0
this.prevTranslateYOffset = new Value(initialSnap);
this.translationY = new Value(initialSnap);

Expand Down Expand Up @@ -667,6 +669,14 @@ export class ScrollBottomSheet<T extends any> extends Component<Props<T>> {
}
};


private onContentSizeChange = (_, height: number) => {
if (this.currentHeight > height) {
this.lastStartScrollY.setValue(0);
}
this.currentHeight = height;
};

snapTo = (index: number) => {
const snapPoints = this.getNormalisedSnapPoints();
this.isManuallySetValue.setValue(1);
Expand Down Expand Up @@ -730,6 +740,7 @@ export class ScrollBottomSheet<T extends any> extends Component<Props<T>> {
// @ts-ignore
decelerationRate={this.decelerationRate}
onScrollBeginDrag={this.onScrollBeginDrag}
onContentSizeChange={this.onContentSizeChange}
scrollEventThrottle={1}
contentContainerStyle={[
rest.contentContainerStyle,
Expand Down