UIPickerView字体

Question

有谁知道是否可以更改单个UIPickerView项目的字体和/或颜色？

Answer 1

- (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;
}

Answer 2

Yes, it is possible. To do that you need to implement pickerView:viewForRow:forComponent:reusingView: method in picker's delegate - create UILabel instance there and setup it with whatever attributes you want.

Answer 3

For this, I would simply go with attributed strings.

Implement this method is your delegate:

- (NSAttributedString *)pickerView:(UIPickerView *)pickerView
             attributedTitleForRow:(NSInteger)row
                      forComponent:(NSInteger)component