Use Environment variable to set min Height of the row in the list and after that change the HStack frame height to your desired height.
Here is the code:
var body: some View {
VStack {
Text("Pressure Readings")
.font(.system(size: 30))
List(pressureList) { row in
HStack {
Spacer()
Text(row.timeStamp)
Text("--->")
Text(String(row.pressureVal))
Spacer()
}.frame(height: 10)
}.environment(\.defaultMinListRowHeight, 10)
}
}
Here is the output: