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[Scroll] RFC: Add scrollWithoutAnimationTo to immediately scroll #486

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[Scroll] RFC: Add scrollWithoutAnimationTo to immediately scroll #486

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8 changes: 8 additions & 0 deletions Libraries/Components/ScrollView/ScrollView.js
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Original file line number Diff line number Diff line change
Expand Up @@ -195,6 +195,14 @@ var ScrollView = React.createClass({
);
},

scrollWithoutAnimationTo: function(destY?: number, destX?: number) {
RCTUIManager.scrollWithoutAnimationTo(
this.getNodeHandle(),
destX || 0,
destY || 0
);
},

render: function() {
var contentContainerStyle = [
this.props.horizontal && styles.contentContainerHorizontal,
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14 changes: 14 additions & 0 deletions React/Modules/RCTUIManager.m
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Original file line number Diff line number Diff line change
Expand Up @@ -1048,6 +1048,20 @@ - (void)scrollToOffsetWithView:(NSNumber *)reactTag scrollToOffsetX:(NSNumber *)
}];
}

- (void)scrollToOffsetWithoutAnimationWithView:(NSNumber *)reactTag scrollToOffsetX:(NSNumber *)offsetX offsetY:(NSNumber *)offsetY
{
RCT_EXPORT(scrollWithoutAnimationTo);

[self addUIBlock:^(RCTUIManager *uiManager, RCTSparseArray *viewRegistry){
UIView *view = viewRegistry[reactTag];
if ([view conformsToProtocol:@protocol(RCTScrollableProtocol)]) {
[(id<RCTScrollableProtocol>)view scrollToOffset:CGPointMake([offsetX floatValue], [offsetY floatValue]) animated:NO];
} else {
RCTLogError(@"tried to scrollToOffsetWithoutAnimation: on non-RCTScrollableProtocol view %@ with tag %@", view, reactTag);
}
}];
}

- (void)zoomToRectWithView:(NSNumber *)reactTag rect:(NSDictionary *)rectDict
{
RCT_EXPORT(zoomToRect);
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