ios7 images inUISegmentedControl not scaling

问题:

I need to display an image in a segmented controller on iOs 7. The problem is that the image doesn't scale to fill the segment (it just sits in the middle).

Here is the code:

self.segmentedController.tintColor = [UIColor clearColor];

UIImage *imageSegmentedLOff;
UIImage *imageSegmentedMOn;

if ([UIImage instancesRespondToSelector:@selector(imageWithRenderingMode:)]) {
    imageSegmentedLOff = [[UIImage imageNamed:IMAGE_SEGMENTED_L_OFF] resizableImageWithCapInsets:UIEdgeInsetsMake(2.0, 2.0, 2.0, 2.0)];
    imageSegmentedLOff = [imageSegmentedLOff imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

    imageSegmentedMOn = [[UIImage imageNamed:IMAGE_SEGMENTED_M_ON] resizableImageWithCapInsets:UIEdgeInsetsMake(2.0, 2.0, 2.0, 2.0)];
    imageSegmentedMOn = [imageSegmentedMOn imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
  } else {
    imageSegmentedLOff = [UIImage imageNamed:IMAGE_SEGMENTED_L_OFF];
    imageSegmentedMOn = [UIImage imageNamed:IMAGE_SEGMENTED_M_ON];
}

[self.segmentedController setImage:imageSegmentedLOff forSegmentAtIndex:0];
[self.segmentedController setImage:imageSegmentedMOn forSegmentAtIndex:1];

Any ideas?