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add -pieChart:ShouldSelectSliceAtIndex: method #52

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add -pieChart:ShouldSelectSliceAtIndex: method #52

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1 change: 1 addition & 0 deletions XYPieChart/XYPieChart.h
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Original file line number Diff line number Diff line change
Expand Up @@ -44,6 +44,7 @@
- (void)pieChart:(XYPieChart *)pieChart didSelectSliceAtIndex:(NSUInteger)index;
- (void)pieChart:(XYPieChart *)pieChart willDeselectSliceAtIndex:(NSUInteger)index;
- (void)pieChart:(XYPieChart *)pieChart didDeselectSliceAtIndex:(NSUInteger)index;
- (BOOL)pieChart:(XYPieChart *)pieChart ShouldSelectSliceAtIndex:(NSUInteger)index;
@end

@interface XYPieChart : UIView
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5 changes: 5 additions & 0 deletions XYPieChart/XYPieChart.m
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Expand Up @@ -543,6 +543,11 @@ - (void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event

- (void)notifyDelegateOfSelectionChangeFrom:(NSUInteger)previousSelection to:(NSUInteger)newSelection
{
if ([_delegate respondsToSelector:@selector(pieChart:ShouldSelectSliceAtIndex:)]) {
if (![_delegate pieChart:self ShouldSelectSliceAtIndex:newSelection]) {
return;
};
}
if (previousSelection != newSelection){
if(previousSelection != -1){
NSUInteger tempPre = previousSelection;
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