Swift – How to change UIPickerView font size

swiftuipickerview

How do I change the font size. My code below is not working. I'm using xcode7.1 and swift 2 on iOS 9.1.

func pickerView(pickerView: UIPickerView, attributedTitleForRow row: Int, forComponent component: Int) -> NSAttributedString? {
    var attributedString: NSMutableAttributedString
    let myAttribute = [ NSFontAttributeName: UIFont(name: "Chalkduster", size: 13.0)! ]
    switch component {
    case 0:
        attributedString = NSMutableAttributedString(string: firstFieldArray[row], attributes: myAttribute )
    case 1:
        attributedString = NSMutableAttributedString(string: secondFieldArray[row], attributes: [NSForegroundColorAttributeName : UIColor.redColor()])
    default:
        attributedString = NSMutableAttributedString(string: firstFieldArray[row], attributes: myAttribute )
    }

    return attributedString
}

case 1 is working perfectly, while case 0 isn't changing it's fontsize.

Best Answer

NSAttributedString cannot be used to change font for UIPickerView.

You can change font by overriding pickerView(pickerView: UIPickerView, viewForRow row: Int, forComponent component: Int, reusingView view: UIView?) -> UIView

Related Solutions

Ios – How to change UIPickerView height

It seems obvious that Apple doesn't particularly invite mucking with the default height of the UIPickerView, but I have found that you can achieve a change in the height of the view by taking complete control and passing a desired frame size at creation time, e.g:

smallerPicker = [[UIPickerView alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 120.0)];

You will discover that at various heights and widths, there are visual glitches. Obviously, these glitches would either need to be worked around somehow, or choose another size that doesn't exhibit them.

Iphone – How to change the Font size in UIPickerView

You need to implement pickerView:viewForRow:forComponent:reusingView: method in picker's delegate

- (UIView *)pickerView:(UIPickerView *)pickerView viewForRow:(NSInteger)row forComponent:(NSInteger)component reusingView:(UIView *)view{
    UILabel* tView = (UILabel*)view;
    if (!tView){
        tView = [[UILabel alloc] init];
            // Setup label properties - frame, font, colors etc
            ...
    }
    // Fill the label text here
    ...
    return tView;
}

Best Answer

Related Solutions

Ios – How to change UIPickerView height

Iphone – How to change the Font size in UIPickerView

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