Create Button with Image in SwiftUI

A button in SwiftUI Is very flexible. You can use any view as its content.

In this article, I will show you how to create an image button and how to adjust its color.

How to create a button with image in SwiftUI

To create a button with an image in SwiftUI, you use an Image view as a label.

In this example, I use Symbols image as a button's content.

Button {
        
} label: {
    Image(systemName: "swift")
}

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How to change a button image color

The part where you should aware of when using an image in a button is the color.

All image has a rendering mode property which dictate how that image should be rendered.

There are two rendering modes.

1. Original (.original) which render an image as-is.
2. Template (.template) which treat an image as a masking layer.

This is where things get a little complicated.

• All SF Symbols are created with a Template rendering mode by default.
• Other images are created with a Default rendering mode (or whatever you set in an Asset Catalog).

Let's see an example. Here are our image assets.

And here is an example where we use SF Symbols and normal images.

HStack {
    Button {
        
    } label: {
        Image(systemName: "swift")
    }
    Button {
        
    } label: {
        Image(systemName: "applelogo")
    }
    
    Button {
        
    } label: {
        Image("visa")
    }    
    Button {
        
    } label: {
        Image("city")
    }
}

Images with Template rendering mode pick up a button tint color (blue) and use that as its color.

For images with default rendering mode, a SwiftUI Button will use render them using Original rendering mode, which renders using their true color.

This may or may not be the behavior you expected.

For the Visa image, you might ok to render it as-is, but you might want the City image to render in template mode.

You can control this behavior by changing the image rendering mode.

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How to change Image Rendering Mode

There are two ways to change an image rendering mode.

1. .renderingMode(_:) modifier
2. Set image property in Asset Catalog

renderingMode modifier

You can set a rendering mode by using .renderingMode(_:) modifier.

We change the image rendering mode to template in this example.

Image("city")
    .renderingMode(.template)

Asset Catalog

You can also change an image rendering mode in the Asset Catalog.

To do that:

1. Selecting an image you want to change the rendering mode in Asset Catalog.
2. Change image rendering mode from the "Render As" option under the Attributed Inspector.

Here is an example where we change our images to template rendering mode.

HStack {
    Button {
        
    } label: {
        Image("visa")
            .renderingMode(.template)
    }
    
    Button {
        
    } label: {
        Image("city")
            .renderingMode(.template)
    }
}