diff options
| -rw-r--r-- | ios/shared/ios_sharedlo/objective_c/view_controllers/MLOTestingTileParameter.m | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/ios/shared/ios_sharedlo/objective_c/view_controllers/MLOTestingTileParameter.m b/ios/shared/ios_sharedlo/objective_c/view_controllers/MLOTestingTileParameter.m index 22d98fa0a47e..1107eef91609 100644 --- a/ios/shared/ios_sharedlo/objective_c/view_controllers/MLOTestingTileParameter.m +++ b/ios/shared/ios_sharedlo/objective_c/view_controllers/MLOTestingTileParameter.m @@ -48,7 +48,7 @@ static const CGFloat DEFAULT_STEP_VALUE = 1; stepper.autorepeat = YES; stepper.continuous = NO; [stepper addObserver:self forKeyPath:@"value" - options: NSKeyValueObservingOptionNew + options: NSKeyValueObservingOptionNew | NSKeyValueObservingOptionOld context:0]; return stepper; } @@ -57,8 +57,10 @@ static const CGFloat DEFAULT_STEP_VALUE = 1; { if (object == self.dataStepper) { - NSNumber * floatNumber = change[NSKeyValueChangeNewKey]; - CGFloat value = [self currentDataValue] + [floatNumber floatValue]; + NSNumber * newNumber = change[NSKeyValueChangeNewKey]; + NSNumber * oldNumber = change[NSKeyValueChangeOldKey]; + + CGFloat value = [self currentDataValue] + [newNumber floatValue] - [oldNumber floatValue]; if(value == ((NSInteger) value)){ self.data.text = [[NSNumber numberWithInteger:(NSInteger) value] stringValue]; |