SwiftUI padding distance is not consistent

Question

I am using Xcode 12.4 with Swift 5.4 on macos 11.2.2
I want to control the space between two Text views. Naturally, padding comes to mind. Here's the code

VStack(alignment: .leading) {
    Text("Exploring San Francisco")
        .font(.appTitle1)
        .fontWeight(.bold)
        .padding(.bottom, 0)
    Text("May 1, 2021 - May 5, 2021")
        .font(.appSmallBody)
        .fontWeight(.bold)
        .textCase(.uppercase)
        .foregroundColor(.init(hex: "666666"))
}

Note that I explicitly write bottom padding is 0px. And here's the result:

Now if I want 1px padding between them, the padding would become too large. Here's the result of bottom padding of 1 px:

As you could probably tell, the distance between them is definitely not 1px, but more like 10px.

However, if I increase the padding to 2px, you could barely see the difference between 1px and 2px:

Why is the padding distance inconsistent?

The only workaround I found is removing the padding and use the VStack's spacing parameter:

VStack(alignment: .leading, spacing: 1) {
    Text("Exploring San Francisco")
        .font(.appTitle1)
        .fontWeight(.bold)
    Text("May 1, 2021 - May 5, 2021")
        .font(.appSmallBody)
        .fontWeight(.bold)
        .textCase(.uppercase)
        .foregroundColor(.init(hex: "666666"))
}

But this is not ideal when there're multiple views in the stack and I want to customize the distance between each pair of them.

Is this a SwiftUI bug? Is there a more elegant workaround for this issue? Thanks!

user_7843309 · Answer

You can try and do the following: basically declare spacing: 0 on the vstack and then change the padding and it will behave the way you want.

    VStack(alignment: .leading, spacing: 0) {
        Text("Exploring San Francisco")
            .font(.title)
            .fontWeight(.bold)
            .lineLimit(1)

        Text("May 1, 2021 - May 5, 2021")
            .font(.subheadline)
            .fontWeight(.bold)
            .textCase(.uppercase)
            .foregroundColor(Color.gray)
            .padding(.top, 1)
    }

changing the last line in the example you can see the difference from

.padding(.top, 0)

.padding(.top, 1)

.padding(.top, 5)

SwiftUI padding distance is not consistent

1 Answers