Question

I have the following code to create a UIPickerView:

pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0.0f, 416.0f - height, 320.0f, height)]; pickerView.delegate = self; pickerView.showsSelectionIndicator = YES; [pickerView setSoundsEnabled:YES]; 

I would like to change the component widths and change the text size in each component. Is it possible to do this?

Thanks!

Answer 1

You can change the width by an appropriate delegate method

- (CGFloat)pickerView:(UIPickerView *)pickerView widthForComponent:(NSInteger)component {     switch(component) {         case 0: return 22;         case 1: return 44;         case 2: return 88;         default: return 22;     }      //NOT REACHED     return 22; } 

As for a custom text size, you can use the delegate to return custom views with whatever sized text you want:

- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view {         UILabel *retval = (id)view;         if (!retval) {             retval= [[[UILabel alloc] initWithFrame:CGRectMake(0.0f, 0.0f, [pickerView rowSizeForComponent:component].width, [pickerView rowSizeForComponent:component].height)] autorelease];         }          retval.text = @'Demo';         retval.font = [UIFont systemFontOfSize:22];         return retval; } 

Of course you will need modify these to have appropriate values for your app, but it should get you where you need to go.