-
Notifications
You must be signed in to change notification settings - Fork 0
/
CustomScrollView.swift
63 lines (50 loc) · 2.06 KB
/
CustomScrollView.swift
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
import SwiftUI
fileprivate class TransparentScroller: NSScroller {
override func draw(_ dirtyRect: NSRect) {
drawKnob()
}
}
class TransparentScrollView: NSScrollView {
override func tile() {
super.tile()
self.contentView.frame = self.bounds
}
}
struct CustomScrollView<Content: View>: NSViewRepresentable {
private var content: Content
public init(@ViewBuilder content: () -> Content) {
self.content = content()
}
public func makeNSView(context: Context) -> NSScrollView {
let scrollView = TransparentScrollView(frame: .zero)
scrollView.verticalScroller = TransparentScroller()
scrollView.drawsBackground = false
scrollView.hasVerticalScroller = true
scrollView.autohidesScrollers = true
scrollView.contentHuggingPriority(for: .horizontal)
scrollView.translatesAutoresizingMaskIntoConstraints = false
let document = NSHostingView(rootView: AnyView(content))
document.translatesAutoresizingMaskIntoConstraints = false
scrollView.documentView = document
NSLayoutConstraint.activate([
document.topAnchor.constraint(equalTo: scrollView.contentView.topAnchor),
document.widthAnchor.constraint(equalTo: scrollView.contentView.widthAnchor)
])
return scrollView
}
public func updateNSView(_ view: NSScrollView, context: Context) {
guard let document = view.documentView as? NSHostingView<AnyView> else {
return
}
document.rootView = AnyView(content)
}
}
struct CustomScrollView_Previews: PreviewProvider {
static var previews: some View {
CustomScrollView() {
ForEach(0 ..< 10) { _ in
Text("Hi there, this is my first time posting here and I'm looking for some help around how to properly wrap an NSTextView(inside a ScrollView) for use in SwiftUI.").lineLimit(2).fixedSize(horizontal: false, vertical: true).padding(20)
}
}.background(Color.red)
}
}