Ios 如何在swiftui中动态更改文本背景色?
我想通过传递函数将文本背景颜色更改为.background(),如下所示,颜色值为0或1或2将取决于DB的数据。如何修复它:Ios 如何在swiftui中动态更改文本背景色?,ios,swift,swiftui,Ios,Swift,Swiftui,我想通过传递函数将文本背景颜色更改为.background(),如下所示,颜色值为0或1或2将取决于DB的数据。如何修复它: import SwiftUI struct ContentView: View { @State var color = 0; var body: some View { Text("Hello, World!") .background(changeBkColor(int : self.$co
import SwiftUI
struct ContentView: View {
@State var color = 0;
var body: some View {
Text("Hello, World!")
.background(changeBkColor(int : self.$color))
}
}
func changeBkColor(int : color)
{
if(color == 1)
{
return Color.red;
}
else if(color == 2)
{
return Color.green;
}
else
{
return Color.blue;
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
给你
struct ContentView: View {
@State var color = 0;
var body: some View {
Text("Hello, World!")
.background(changeBkColor(color: self.color))
}
}
func changeBkColor(color: Int) -> Color
{
if(color == 1)
{
return Color.red;
}
else if(color == 2)
{
return Color.green;
}
else
{
return Color.blue;
}
}