iPhone UIButton - image position

Question

I have a UIButton with text \"Explore the app\" and UIImage (>) In Interface Builder it looks like:

[ (>) Explore t         


        

Answer 1

In Swift:

override func layoutSubviews(){
    super.layoutSubviews()

    let inset: CGFloat = 5

    if var imageFrame = self.imageView?.frame,
       var labelFrame = self.titleLabel?.frame {

       let cumulativeWidth = imageFrame.width + labelFrame.width + inset
       let excessiveWidth = self.bounds.width - cumulativeWidth
       labelFrame.origin.x = excessiveWidth / 2
       imageFrame.origin.x = labelFrame.origin.x + labelFrame.width + inset

       self.imageView?.frame = imageFrame
       self.titleLabel?.frame = labelFrame  
    }
}

Answer 2

Set the imageEdgeInset and titleEdgeInset to move the components around within your image. You could also create a button using those graphics that is full size, and use that as the background image for the button (then use titleEdgeInsets to move the title around).

Answer 3

What about subclassing UIButton and overriding layoutSubviews?

Then post-processing the locations of self.imageView & self.titleLabel

Answer 4

Building off the answer by @split...

The answer is fantastic, but it ignores the fact that the button may have custom image and title edge insets that are set beforehand (e.g. in storyboard).

For instance, you may want the image have some padding from the top and bottom of the container, but still move the image to the right side of the button.

I extended the concept with this method:-

- (void) moveImageToRightSide {
    [self sizeToFit];

    CGFloat titleWidth = self.titleLabel.frame.size.width;
    CGFloat imageWidth = self.imageView.frame.size.width;
    CGFloat gapWidth = self.frame.size.width - titleWidth - imageWidth;
    self.titleEdgeInsets = UIEdgeInsetsMake(self.titleEdgeInsets.top,
                                            -imageWidth + self.titleEdgeInsets.left,
                                            self.titleEdgeInsets.bottom,
                                            imageWidth - self.titleEdgeInsets.right);

    self.imageEdgeInsets = UIEdgeInsetsMake(self.imageEdgeInsets.top,
                                            titleWidth + self.imageEdgeInsets.left + gapWidth,
                                            self.imageEdgeInsets.bottom,
                                            -titleWidth + self.imageEdgeInsets.right - gapWidth);
}

Answer 5

Another simple way (that is NOT iOS 9 only) is to subclass UIButton to override these two methods

override func titleRectForContentRect(contentRect: CGRect) -> CGRect {
    var rect = super.titleRectForContentRect(contentRect)
    rect.origin.x = 0
    return rect
}

override func imageRectForContentRect(contentRect: CGRect) -> CGRect {
    var rect = super.imageRectForContentRect(contentRect)
    rect.origin.x = CGRectGetMaxX(contentRect) - CGRectGetWidth(rect)
    return rect
}

contentEdgeInsets is already taken into account by using super.

Answer 6

This solution works iOS 7 and above

Just subclass UIButton

@interface UIButton (Image)

- (void)swapTextWithImage;

@end

@implementation UIButton (Image)

- (void)swapTextWithImage {
   const CGFloat kDefaultPadding = 6.0f;
   CGSize buttonSize = [self.titleLabel.text sizeWithAttributes:@{
                                                               NSFontAttributeName:self.titleLabel.font
                                                               }];

   self.titleEdgeInsets = UIEdgeInsetsMake(0, -self.imageView.frame.size.width, 0, self.imageView.frame.size.width);
   self.imageEdgeInsets = UIEdgeInsetsMake(0, buttonSize.width + kDefaultPadding, 0, -buttonSize.width); 
}

@end

Usage (Somewhere in your class):

[self.myButton setTitle:@"Any text" forState:UIControlStateNormal];
[self.myButton swapTextWithImage];