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I have 2 columnes in UIPicerView, and when I call [pickerView reloadAllComponents] it doesn’t call
- (CGFloat)pickerView:(UIPickerView *)pickerView widthForComponent:(NSInteger)component
for updating components widths, but when a switch in program 2=>3 and 3=>2 mthod calling, i must change current columnt count and than call [pickerView reloadAllComponents]?
Your view controller should inherit the UIPickerView protocol. Than implement
-(NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
method