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Use .overlay instead of .background to inject introspection view. Fixes #2

This commit is contained in:
Lois Di Qual 2019-12-01 17:01:51 -08:00
parent 6688ebeb67
commit ec46ea495b
2 changed files with 20 additions and 14 deletions
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32
Introspect/Introspect.swift
View File

@ -103,6 +103,8 @@ public class IntrospectionUIView: UIView {
required init() {
super.init(frame: .zero)
isHidden = true
isUserInteractionEnabled = false
}
@available(*, unavailable)
@ -133,7 +135,7 @@ public struct IntrospectionView<TargetViewType: UIView>: UIViewRepresentable {
public func makeUIView(context: UIViewRepresentableContext<IntrospectionView>) -> IntrospectionUIView {
let view = IntrospectionUIView()
view.accessibilityLabel = "IntrospectionUIView<\(TargetViewType.self)>"
return view
return IntrospectionUIView()
}
/// When `updateUiView` is called after creating the Introspection view, it is not yet in the UIKit hierarchy.
@ -204,20 +206,24 @@ public struct IntrospectionViewController<TargetViewControllerType: UIViewContro
extension View {
public func inject<SomeView>(_ view: SomeView) -> some View where SomeView: View {
return overlay(view.frame(width: 0, height: 0))
}
/// Finds a `UITableView` from a `SwiftUI.List`, or `SwiftUI.List` child.
public func introspectTableView(customize: @escaping (UITableView) -> ()) -> some View {
return background(IntrospectionView(
return inject(IntrospectionView(
selector: { introspectionView in
// Search in ancestors
if let tableView = Introspect.findAncestor(ofType: UITableView.self, from: introspectionView) {
return tableView
}
guard let viewHost = Introspect.findViewHost(from: introspectionView) else {
return nil
}
// Search in siblings
return Introspect.firstSibling(containing: UITableView.self, from: viewHost)
},
@ -227,7 +233,7 @@ extension View {
/// Finds a `UIScrollView` from a `SwiftUI.ScrollView`, or `SwiftUI.ScrollView` child.
public func introspectScrollView(customize: @escaping (UIScrollView) -> ()) -> some View {
return background(IntrospectionView(
return inject(IntrospectionView(
selector: { introspectionView in
// Search in ancestors
@ -248,7 +254,7 @@ extension View {
/// Finds a `UINavigationController` from any view embedded in a `SwiftUI.NavigationView`.
public func introspectNavigationController(customize: @escaping (UINavigationController) -> ()) -> some View {
return background(IntrospectionViewController(
return inject(IntrospectionViewController(
selector: { $0.navigationController },
customize: customize
))
@ -256,7 +262,7 @@ extension View {
/// Finds a `UITabBarController` from any SwiftUI view embedded in a `SwiftUI.TabView`
public func introspectTabBarController(customize: @escaping (UITabBarController) -> ()) -> some View {
return background(IntrospectionViewController(
return inject(IntrospectionViewController(
selector: { $0.tabBarController },
customize: customize
))
@ -264,7 +270,7 @@ extension View {
/// Finds a `UITextField` from a `SwiftUI.TextField`
public func introspectTextField(customize: @escaping (UITextField) -> ()) -> some View {
return self.background(IntrospectionView(
return inject(IntrospectionView(
selector: { introspectionView in
guard let viewHost = Introspect.findViewHost(from: introspectionView) else {
return nil
@ -277,7 +283,7 @@ extension View {
/// Finds a `UISwitch` from a `SwiftUI.Toggle`
public func introspectSwitch(customize: @escaping (UISwitch) -> ()) -> some View {
return self.background(IntrospectionView(
return inject(IntrospectionView(
selector: { introspectionView in
guard let viewHost = Introspect.findViewHost(from: introspectionView) else {
return nil
@ -290,7 +296,7 @@ extension View {
/// Finds a `UISlider` from a `SwiftUI.Slider`
public func introspectSlider(customize: @escaping (UISlider) -> ()) -> some View {
return self.background(IntrospectionView(
return inject(IntrospectionView(
selector: { introspectionView in
guard let viewHost = Introspect.findViewHost(from: introspectionView) else {
return nil
@ -303,7 +309,7 @@ extension View {
/// Finds a `UIStepper` from a `SwiftUI.Stepper`
public func introspectStepper(customize: @escaping (UIStepper) -> ()) -> some View {
return self.background(IntrospectionView(
return inject(IntrospectionView(
selector: { introspectionView in
guard let viewHost = Introspect.findViewHost(from: introspectionView) else {
return nil
@ -316,7 +322,7 @@ extension View {
/// Finds a `UIDatePicker` from a `SwiftUI.DatePicker`
public func introspectDatePicker(customize: @escaping (UIDatePicker) -> ()) -> some View {
return self.background(IntrospectionView(
return inject(IntrospectionView(
selector: { introspectionView in
guard let viewHost = Introspect.findViewHost(from: introspectionView) else {
return nil

2
README.md
View File

@ -125,7 +125,7 @@ In case Introspect doesn't support the SwiftUI element that you're looking for,
```swift
extension View {
public func introspectTextField(customize: @escaping (UITextField) -> ()) -> some View {
return self.background(IntrospectionView(
return inject(IntrospectionView(
selector: { introspectionView in
guard let viewHost = Introspect.findViewHost(from: introspectionView) else {
return nil