在Pickerview中更改文本大小

Question

我们如何在选择器视图中更改文本的大小？

有人请帮忙.

Answer 1

您可以使用代码更改UIPickerView的字体大小:

 - (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.font = [UIFont systemFontOfSize:22];

       return retval;
    }