How to set the text of UISegmentedControl on the left side

I want the text of each segments are aligned to the left, so I tried UIControl contentHorizontalAlignment , but it did not work, so I try to redraw UISegmentedControl , since it will be displayed on the left, but if I choose one segment , the text segment will become a center alignment. Here is my code:

- (void)drawRect:(CGRect)rect {
      NSLog(@"z %s", __FUNCTION__);
      [super drawRect:rect];
      [self changeToLeft];
 }


-(void)changeToLeft
{
  for (UIView *segV in self.subviews) {
    for (UIView *subV in segV.subviews) {
        subV.frameX = 0;
    }
  }
}