Here is the code snippets.
struct RealityViewTestView: View {
@State private var texts: [String] = []
var body: some View {
RealityView { content, attachments in
} update: { content, attachments in
for text in texts {
if let textEntity = attachments.entity(for: text) {
textEntity.position.x = Float.random(in: -0.1...0.1)
content.add(textEntity)
}
}
} attachments: {
ForEach(texts, id: \.self) { text in
Attachment(id: text) {
Text(text)
.padding()
.glassBackgroundEffect()
}
}
}
.toolbar {
ToolbarItem {
Button("Add") {
texts.append(String(UUID().uuidString.prefix(6)))
}
}
ToolbarItem {
Button("Remove") {
texts.remove(at: Int.random(in: 0..<texts.count))
}
}
}
}
}
struct RealityViewTestView: View {
@State private var texts: [String] = []
@State private var entities: [Entity] = []
var body: some View {
RealityView { content, attachments in
} update: { content, attachments in
// for text in texts {
// if let textEntity = attachments.entity(for: text) {
// textEntity.position.x = Float.random(in: -0.1...0.1)
// content.add(textEntity)
// }
// }
for entity in entities {
content.add(entity)
}
} attachments: {
ForEach(texts, id: \.self) { text in
Attachment(id: text) {
Text(text)
.padding()
.glassBackgroundEffect()
}
}
}
.toolbar {
ToolbarItem {
Button("Add") {
//texts.append(String(UUID().uuidString.prefix(6)))
let m = ModelEntity(mesh: .generateSphere(radius: 0.1), materials: [SimpleMaterial(color: .white, isMetallic: false)])
m.position.x = Float.random(in: -0.2...0.2)
entities.append(m)
}
}
ToolbarItem {
Button("Remove") {
//texts.remove(at: Int.random(in: 0..<texts.count))
entities.removeLast()
}
}
}
}
}
About the first code snippet, when I remove an element from the texts, why content can automatically remove the corresponding entity? And about the second code snippet, content do not automatically remove the corresponding entity. I am very curious.
