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https://github.com/tevelee/swiftui-flow
Flow Layout implemented in SwiftUI
https://github.com/tevelee/swiftui-flow
flow-layout layout swiftui
Last synced: about 23 hours ago
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Flow Layout implemented in SwiftUI
- Host: GitHub
- URL: https://github.com/tevelee/swiftui-flow
- Owner: tevelee
- License: mit
- Created: 2022-07-05T08:42:21.000Z (over 2 years ago)
- Default Branch: main
- Last Pushed: 2024-09-29T20:29:46.000Z (3 months ago)
- Last Synced: 2024-12-01T09:08:37.514Z (22 days ago)
- Topics: flow-layout, layout, swiftui
- Language: Swift
- Homepage: https://swiftpackageindex.com/tevelee/swiftui-flow/main/documentation/flow
- Size: 6.7 MB
- Stars: 395
- Watchers: 2
- Forks: 32
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE.txt
Awesome Lists containing this project
README
# SwiftUI Flow Layout
Introduces `HFlow` and `VFlow` similar to `HStack` and `VStack`.
Arranges views in lines and cuts new lines accordingly (if elements don't fit the bounding space).
## HFlow
```swift
struct Colors: View {
let colors: [Color] = [
.blue,
.orange,
.green,
.yellow,
.brown,
.mint,
.indigo,
.cyan,
.gray,
.pink
]
var body: some View {
HFlow {
ForEach(colors, id: \.description) { color in
RoundedRectangle(cornerRadius: 10)
.fill(color.gradient)
.frame(width: .random(in: 40...60), height: 50)
}
}
.frame(maxWidth: 300)
}
}
```
## VFlow
```swift
VFlow {
ForEach(colors, id: \.description) { color in
RoundedRectangle(cornerRadius: 10)
.fill(color.gradient)
.frame(width: 50, height: .random(in: 40...60))
}
}
.frame(maxHeight: 300)
```
## Alignment
Supports the same alignments as HStack and VStack do.
```swift
HFlow(alignment: .top) {
ForEach(colors, id: \.description) { color in
RoundedRectangle(cornerRadius: 10)
.fill(color.gradient)
.frame(width: 50, height: .random(in: 40...60))
}
}
.frame(maxWidth: 300)
```
Additionally, alignment can be specified on both axes. Ideal for tags.
```swift
HFlow(horizontalAlignment: .center, verticalAlignment: .top) {
ForEach(colors, id: \.description) { color in
RoundedRectangle(cornerRadius: 10)
.fill(color.gradient)
.frame(width: .random(in: 30...60), height: 30)
}
}
.frame(maxWidth: 300)
```
## Spacing
Customize spacing between rows and items separately.
```swift
HFlow(itemSpacing: 4, rowSpacing: 20) {
ForEach(colors, id: \.description) { color in
RoundedRectangle(cornerRadius: 10)
.fill(color.gradient)
.frame(width: 50, height: 50)
}
}
.frame(maxWidth: 300)
```
## Distribute items
Distribute items evenly by minimizing the empty spaces left in each row.
Implements the Knuth-Plass line breaking algorithm.
```swift
HFlow(distributeItemsEvenly: true) {
ForEach(colors, id: \.description) { color in
RoundedRectangle(cornerRadius: 10)
.fill(color.gradient)
.frame(width: 65, height: 50)
}
}
.frame(width: 300, alignment: .leading)
```
## Justified
```swift
HFlow(justified: true) {
ForEach(colors, id: \.description) { color in
RoundedRectangle(cornerRadius: 10)
.fill(color.gradient)
.frame(width: 50, height: 50)
}
}
.frame(width: 300)
```
## Flexibility
```swift
HFlow { // distributes flexible items proportionally
RoundedRectangle(cornerRadius: 10)
.fill(.red)
.frame(minWidth: 50, maxWidth: .infinity)
.frame(height: 50)
.flexibility(.minimum) // takes as little space as possible, rigid
RoundedRectangle(cornerRadius: 10)
.fill(.green)
.frame(minWidth: 50, maxWidth: .infinity)
.frame(height: 50)
.flexibility(.natural) // expands
RoundedRectangle(cornerRadius: 10)
.fill(.blue)
.frame(minWidth: 50, maxWidth: .infinity)
.frame(height: 50)
.flexibility(.natural) // expands
RoundedRectangle(cornerRadius: 10)
.fill(.yellow)
.frame(minWidth: 50, maxWidth: .infinity)
.frame(height: 50) // takes as much space as possible
.flexibility(.maximum)
}
.frame(width: 300)
```
## Line breaks
```swift
HFlow {
RoundedRectangle(cornerRadius: 10)
.fill(.red)
.frame(width: 50, height: 50)
RoundedRectangle(cornerRadius: 10)
.fill(.green)
.frame(width: 50, height: 50)
RoundedRectangle(cornerRadius: 10)
.fill(.blue)
.frame(width: 50, height: 50)
LineBreak()
RoundedRectangle(cornerRadius: 10)
.fill(.yellow)
.frame(width: 50, height: 50)
}
.frame(width: 300)
```
```swift
HFlow {
RoundedRectangle(cornerRadius: 10)
.fill(.red)
.frame(width: 50, height: 50)
RoundedRectangle(cornerRadius: 10)
.fill(.green)
.frame(width: 50, height: 50)
.startInNewLine()
RoundedRectangle(cornerRadius: 10)
.fill(.blue)
.frame(width: 50, height: 50)
RoundedRectangle(cornerRadius: 10)
.fill(.yellow)
.frame(width: 50, height: 50)
}
.frame(width: 300)
```
## RTL
Adapts to left-to-right and right-to-left environments too.
```swift
HFlow {
ForEach(colors, id: \.description) { color in
RoundedRectangle(cornerRadius: 10)
.fill(color.gradient)
.frame(width: .random(in: 40...60), height: 50)
}
}
.frame(maxWidth: 300)
.environment(\.layoutDirection, .rightToLeft)
```
