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@jw@jakewharton.com
Playing in the Treehouse
with Redwood and Zipline
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Redwood Zipline
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Redwood Zipline
Treehouse
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Figma Android Eng
iOS Eng
Web Eng
Redwood
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Figma Android Eng
iOS Eng
Web Eng
View Impl
UIKit Impl
DOM Impl
Redwood
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Figma Android Eng
iOS Eng
Web Eng
View Impl
UIKit Impl
DOM Impl
Redwood
Redwood
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Figma Android Eng
iOS Eng
Web Eng
View Impl
UIKit Impl
DOM Impl
Redwood
Redwood
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Schema Widgets
Redwood
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Schema
Widgets
Compose
Redwood
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Redwood Schema
data class Column(
val children: () -> Unit,
)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
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Redwood Schema
data class Column(
val children: () -> Unit,
val birthday: LocalDate,
)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
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Redwood Schema
import kotlinx.datetime.LocalDate
data class Column(
val children: () -> Unit,
val birthday: LocalDate,
)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
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Redwood Schema
data class Column(
val children: () -> Unit,
)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
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Redwood Schema
data class Column(
val children: () -> Unit,
)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
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Redwood Schema
data class Column(
val children: () -> Unit,
)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
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Redwood Schema
data class Column(
val children: () -> Unit,
)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
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Redwood Schema
data class Column(
val children: () -> Unit,
)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
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Redwood Schema
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Redwood Schema
data class Row(…)
data class Column(…)
data class Image(
val url: HttpUrl,
val size: ImageSize,
val borderStyle: BorderStyle,
)
data class Text(
val text: String,
val font: FontFamily,
val style: FontStyle,
)
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Redwood Schema
data class ContactItem(
val name: String,
val image: HttpUrl,
val content: () -> Unit,
)
data class Text(
val text: String,
val font: FontFamily,
val style: FontStyle,
)
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Redwood Schema
data class Row(…)
data class Column(…)
data class Image(
val url: HttpUrl,
val size: ImageSize,
val borderStyle: BorderStyle,
)
data class Text(
val text: String,
val font: FontFamily,
val style: FontStyle,
)
data class ContactItem(
val name: String,
val image: HttpUrl,
val content: () -> Unit,
)
data class Text(
val text: String,
val font: FontFamily,
val style: FontStyle,
)
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Redwood Compose
data class Column(
val children: () -> Unit,
)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
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Redwood Compose
data class Column(
val children: () -> Unit,
)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
@Composable fun Column(
children: @Composable () -> Unit,
) { … }
@Composable fun TextInput(
hint: String,
text: String,
onTextChanged: (String) -> Unit,
) { … }
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Redwood Compose
@Composable fun Column(
children: @Composable () -> Unit,
) { … }
@Composable fun TextInput(
hint: String,
text: String,
onTextChanged: (String) -> Unit,
) { … }
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Redwood Compose
Column {
var query by remember { mutableStateOf("") }
TextInput(
hint = "Search",
text = query,
onTextChanged = { query = it },
)
val images = LoadImages(query)
ScrollableColumn {
for (image in images) {
Image(url = image.url)
}
}
}
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Redwood Widgets
data class Column(
val children: () -> Unit,
)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
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Redwood Widgets
data class Column(
val children: () -> Unit,
)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
interface Column : Widget {
val children: Widget.Children
}
interface TextInput : Widget {
fun hint(hint: String)
fun text(text: String)
fun onTextChanged(onTextChanged: ((String) -> Unit)?)
}
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Redwood Widgets
interface Column : Widget {
val children: Widget.Children
}
interface TextInput : Widget {
fun hint(hint: String)
fun text(text: String)
fun onTextChanged(onTextChanged: ((String) -> Unit)?)
}
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Redwood Widgets
interface Widget {
val value: T
}
interface Column : Widget {
val children: Widget.Children
}
interface TextInput : Widget {
fun hint(hint: String)
fun text(text: String)
fun onTextChanged(onTextChanged: ((String) -> Unit)?)
}
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Redwood Widgets
interface Column : Widget {
val children: Widget.Children
}
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Redwood Widgets
class ViewColumn : Column
interface Column : Widget {
val children: Widget.Children
}
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Redwood Widgets
class ViewColumn(
override val value: LinearLayout,
) : Column
interface Column : Widget {
val children: Widget.Children
}
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Redwood Widgets
class ViewColumn(
override val value: LinearLayout,
) : Column {
override val children = ViewGroupChildren(value)
}
interface Column : Widget {
val children: Widget.Children
}
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Redwood Widgets
interface EmojiWidgetFactory : Widget.Factory {
fun Column(): Column
fun ScrollableColumn(): ScrollableColumn
fun TextInput(): TextInput
fun Image(): Image
}
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Redwood Widgets
interface EmojiWidgetFactory : Widget.Factory {
fun Column(): Column
…
}
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Redwood Widgets
class EmojiViewWidgetFactory : EmojiWidgetFactory
interface EmojiWidgetFactory : Widget.Factory {
fun Column(): Column
…
}
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Redwood Widgets
class EmojiViewWidgetFactory(
private val context: Context,
) : EmojiWidgetFactory
interface EmojiWidgetFactory : Widget.Factory {
fun Column(): Column
…
}
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Redwood Widgets
class EmojiViewWidgetFactory(
private val context: Context,
) : EmojiWidgetFactory {
override fun Column(): Column {
}
}
interface EmojiWidgetFactory : Widget.Factory {
fun Column(): Column
…
}
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Redwood Widgets
class EmojiViewWidgetFactory(
private val context: Context,
) : EmojiWidgetFactory {
override fun Column(): Column {
return ViewColumn(LinearLayout(context))
}
}
interface EmojiWidgetFactory : Widget.Factory {
fun Column(): Column
…
}
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Redwood Widgets
class EmojiViewWidgetFactory(
private val context: Context,
) : EmojiWidgetFactory {
override fun Column(): Column {
return ViewColumn(LinearLayout(context))
}
…
}
interface EmojiWidgetFactory : Widget.Factory {
fun Column(): Column
…
}
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@Composable
fun MessageCard(msg: Message) {
Row(modifier = Modifier.padding(all = 8.dp)) {
Image(
painter = painterResource(R.drawable.profile_picture),
contentDescription = null,
modifier = Modifier
.size(40.dp)
.clip(CircleShape)
.border(1.5.dp, MaterialTheme.colors.secondary, CircleShape),
)
Spacer(modifier = Modifier.width(8.dp))
Column {
Text(
text = msg.author,
color = MaterialTheme.colors.secondaryVariant,
style = MaterialTheme.typography.subtitle2,
)
Spacer(modifier = Modifier.height(4.dp))
Surface(shape = MaterialTheme.shapes.medium, elevation = 1.dp) {
Text(
text = msg.body,
modifier = Modifier.padding(all = 4.dp),
style = MaterialTheme.typography.body2,
)
}
}
}
}
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@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
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@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
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@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
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@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
Row
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@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
Row
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@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
Row
Image
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@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
Row
Spacer
Image
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Spacer
Image Column
@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
Row
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Spacer
Image Column
@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
Row
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Spacer
Image Column
@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
Row
Text
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Spacer
Image Column
@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
Row
Text Spacer
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Text Spacer Surface
Spacer
Image Column
@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
Row
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Text Spacer Surface
Spacer
Image Column
@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
Row
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Text Spacer Surface
Spacer
Image Column
@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
Row
Text
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@Composable
fun MessageCard(…) {
Row(…) {
Image(…)
Spacer(…)
Column {
Text(…)
Spacer(…)
Surface(…) {
Text(…)
}
}
}
}
Root
Row
Spacer
Image Column
Text Spacer Surface
Text
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Root
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Root FrameLayout
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Root
Row
Spacer
Image Column
Text Spacer Surface
Text
FrameLayout
LinearLayout
View
ImageView LinearLayout
TextView View FrameLayout
TextView
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Root
Row
Spacer
Image Column
Text Spacer Surface
Text
UIStackView
UIStackView
UIView
UIImageView UIStackView
UITextView UIView UIView
UITextView
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Root
Row
Spacer
Image Column
Text Spacer Surface
Text
![]()
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Redwood Compose & Widgets
@Composable fun TextInput(
hint: String,
text: String,
onTextChanged: (String) -> Unit,
) { … }
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Redwood Compose & Widgets
@Composable fun TextInput(
hint: String,
text: String,
onTextChanged: (String) -> Unit,
) {
ComposeNode<…>(
factory = …,
update = { … },
)
}
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Redwood Compose & Widgets
@Composable fun TextInput(
hint: String,
text: String,
onTextChanged: (String) -> Unit,
) {
RedwoodComposeNode<…>(
factory = …,
update = { … },
)
}
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Redwood Compose & Widgets
@Composable fun TextInput(
hint: String,
text: String,
onTextChanged: (String) -> Unit,
) {
RedwoodComposeNode, …>(
factory = …,
update = { … },
)
}
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Redwood Compose & Widgets
@Composable fun TextInput(
hint: String,
text: String,
onTextChanged: (String) -> Unit,
) {
RedwoodComposeNode, TextInput<*>>(
factory = …,
update = { … },
)
}
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Redwood Compose & Widgets
@Composable fun TextInput(
hint: String,
text: String,
onTextChanged: (String) -> Unit,
) {
RedwoodComposeNode, TextInput<*>>(
factory = EmojiWidgetFactory<*>::TextInput,
update = { … },
)
}
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Redwood Compose & Widgets
@Composable fun TextInput(
hint: String,
text: String,
onTextChanged: (String) -> Unit,
) {
RedwoodComposeNode, TextInput<*>>(
factory = EmojiWidgetFactory<*>::TextInput,
update = {
set(hint) { hint(hint) }
set(text) { text(text) }
set(onTextChanged) { onTextChanged(onTextChanged) }
},
)
}
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Redwood Compose & Widgets
@Composable fun TextInput(
hint: String,
text: String,
onTextChanged: (String) -> Unit,
) {
RedwoodComposeNode, TextInput<*>>(
factory = EmojiWidgetFactory<*>::TextInput,
update = {
set(hint) { hint(hint) }
set(text) { text(text) }
set(onTextChanged) { onTextChanged(onTextChanged) }
},
)
}
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Root
Row
Spacer
Image Column
Text Spacer Surface
Text
FrameLayout
LinearLayout
View
ImageView LinearLayout
TextView View FrameLayout
TextView
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Root
Row
Spacer
Image Column
Text Spacer Surface
Text
FrameLayout
LinearLayout
View
ImageView LinearLayout
TextView View FrameLayout
TextView
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Root
Row
Spacer
Image Column
Text Spacer Surface
Text
FrameLayout
LinearLayout
View
ImageView LinearLayout
TextView View FrameLayout
TextView
Text(msg.body, …)
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Root
Row
Spacer
Image Column
Text Spacer Surface
Text
FrameLayout
LinearLayout
View
ImageView LinearLayout
View FrameLayout
TextView
TextView
Text(msg.body, …)
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Redwood Layout
data class Row(
val width: Constraint,
val height: Constraint,
val margin: Margin,
val overflow: Overflow,
val horizontalAlignment: MainAxisAlignment,
val verticalAlignment: CrossAxisAlignment,
val children: RowScope.() -> Unit,
)
data class Column(…)
data class Spacer(…)
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Redwood Counter Sample
data class Text(
val text: String?,
)
data class Button(
val text: String?,
val enabled: Boolean = true,
val onClick: (() -> Unit)? = null,
)
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Redwood Counter Sample
@Composable
fun Counter(value: Int = 0) {
var count by remember { mutableStateOf(value) }
Column {
Button("-1", onClick = { count-- })
Text("Count: $count")
Button("+1", onClick = { count++ })
}
}
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Redwood Counter Sample
@Composable
fun Counter(value: Int = 0) {
var count by remember { mutableStateOf(value) }
Column {
Button("-1", onClick = { count-- })
Text("Count: $count")
Button("+1", onClick = { count++ })
}
}
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Redwood Counter Sample
@Composable
fun Counter(value: Int = 0) {
var count by remember { mutableStateOf(value) }
Column {
Button("-1", onClick = { count-- })
Text("Count: $count")
Button("+1", onClick = { count++ })
}
}
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Redwood Counter Sample
@Composable
fun Counter(value: Int = 0) {
var count by remember { mutableStateOf(value) }
Column {
Button("-1", onClick = { count-- })
Text("Count: $count")
Button("+1", onClick = { count++ })
}
}
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Redwood Counter Sample
@Composable
fun Counter(value: Int = 0) {
var count by remember { mutableStateOf(value) }
Column {
Button("-1", onClick = { count-- })
Text("Count: $count")
Button("+1", onClick = { count++ })
}
}
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Redwood Counter Sample
class AndroidText(
override val value: TextView,
) : Text {
override fun text(text: String?) {
value.text = text
}
}
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Redwood Counter Sample
val root = findViewById(android.R.id.content)!!
val composition = RedwoodComposition(
scope = mainScope,
container = ViewGroupChildren(root),
provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
),
)
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Redwood Counter Sample
val root = findViewById(android.R.id.content)!!
val composition = RedwoodComposition(
scope = mainScope,
container = ViewGroupChildren(root),
provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
),
)
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Redwood Counter Sample
val root = findViewById(android.R.id.content)!!
val composition = RedwoodComposition(
scope = mainScope,
container = ViewGroupChildren(root),
provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
),
)
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Redwood Counter Sample
val root = findViewById(android.R.id.content)!!
val composition = RedwoodComposition(
scope = mainScope,
container = ViewGroupChildren(root),
provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
),
)
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Redwood Counter Sample
val root = findViewById(android.R.id.content)!!
val composition = RedwoodComposition(
scope = mainScope,
container = ViewGroupChildren(root),
provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
),
)
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Redwood Counter Sample
val root = findViewById(android.R.id.content)!!
val composition = RedwoodComposition(
scope = mainScope,
container = ViewGroupChildren(root),
provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
),
)
composition.setContent {
Counter()
}
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Redwood Counter Sample
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Redwood Counter Sample
class ComposeUiText : Text<@Composable () -> Unit> {
private var text by mutableStateOf("")
override val value = @Composable {
Text(text = text)
}
override fun text(text: String?) {
this.text = text ?: ""
}
}
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Redwood Counter Sample
val factories = SchemaWidgetFactories(
Counter = ComposeUiCounterWidgetFactory,
RedwoodLayout = ComposeUiRedwoodLayoutWidgetFactory(),
)
setContent {
CounterTheme {
RedwoodContent(factories) {
Counter()
}
}
}
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Redwood Counter Sample
val factories = SchemaWidgetFactories(
Counter = ComposeUiCounterWidgetFactory,
RedwoodLayout = ComposeUiRedwoodLayoutWidgetFactory(),
)
setContent {
CounterTheme {
RedwoodContent(factories) {
Counter()
}
}
}
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Redwood Counter Sample
val factories = SchemaWidgetFactories(
Counter = ComposeUiCounterWidgetFactory,
RedwoodLayout = ComposeUiRedwoodLayoutWidgetFactory(),
)
setContent {
CounterTheme {
RedwoodContent(factories) {
Counter()
}
}
}
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Redwood Counter Sample
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Redwood Counter Sample
application {
Window(
onCloseRequest = ::exitApplication,
title = "Counter",
state = rememberWindowState(300.dp, 300.dp),
) {
CounterTheme {
RedwoodContent(factories) {
Counter()
}
}
}
}
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Redwood Counter Sample
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Redwood Counter Sample
class HtmlText(
override val value: HTMLSpanElement,
) : Text {
override fun text(text: String?) {
value.textContent = text
}
}
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Redwood Counter Sample
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Redwood Counter Sample
class IosText : Text {
override val value = UILabel().apply {
textAlignment = NSTextAlignmentCenter
}
override fun text(text: String?) {
value.text = text
}
}
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Redwood Counter Sample
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Redwood
Treehouse
Zipline
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Zipline
2016
2019
2022
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No content
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No content
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No content
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No content
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American Red Cross
Payment to $redcross
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American Red Cross
Payment to $redcross
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American Red Cross
Payment to $redcross
Donation
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American Red Cross
Payment to $redcross
Donation
~1 day
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American Red Cross
Payment to $redcross
Donation
~1 day
3 - 7 days
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American Red Cross
Payment to $redcross
Donation
~1 day
3 - 7 days
4 - 10 days
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No content
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No content
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{"id":"Lgh13IUG7f6","amount":137,"currency":"USD","sender":
{"id":"2q3u9bUG8f6","username":"jake","display_name":"Jake
Wharton","is_non_profit":false},"recipient":
{"id":"h98FUH87gwe","username":"redcross","display_name":"America
n Red Cross","is_non_profit":true},"date":"2018-10-29T15:22:21"}
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{"id":"Lgh13IUG7f6","amount":137,"currency":"USD","sender":
{"id":"2q3u9bUG8f6","username":"jake","display_name":"Jake
Wharton","is_non_profit":false},"recipient":
{"id":"h98FUH87gwe","username":"redcross","display_name":"America
n Red Cross","is_non_profit":true},"date":"2018-10-29T15:22:21"}
{"payment_line_1":"American Red Cross","payment_line_2":"Donation
to $redcross","payment_line_3":"$1.37","payment_line_4":"Oct 29,
2018 at 3:22PM"}
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{"id":"Lgh13IUG7f6","amount":137,"currency":"USD","sender":
{"id":"2q3u9bUG8f6","username":"jake","display_name":"Jake
Wharton","is_non_profit":false},"recipient":
{"id":"h98FUH87gwe","username":"redcross","display_name":"America
n Red Cross","is_non_profit":true},"date":"2018-10-29T15:22:21"}
{"payment_line_1":"American Red Cross","payment_line_2":"Donation
to $redcross","payment_line_3":"$1.37","payment_line_4":"Oct 29,
2018 at 3:22PM"}
if (payment.recipient.is_non_profit
&& payment.sender.is_florida_man) {
return "Donation to %s"
}
return "Payment to %s
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No content
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No content
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No content
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No content
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class PaymentRenderer {
fun render(payment: Payment): String {
…
}
}
PaymentRenderer {
fun render(payment: Payment): String {
}
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class RealPaymentRenderer : PaymentRenderer {
override fun render(payment: Payment): String {
…
}
}
interface PaymentRenderer {
fun render(payment: Payment): String
}
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class RealPaymentRenderer : PaymentRenderer {
override fun render(payment: Payment): String {
…
}
}
interface PaymentRenderer : ZiplineService {
fun render(payment: Payment): String
}
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class RealPaymentRenderer : PaymentRenderer {
override fun render(payment: Payment): String {
…
}
}
interface PaymentRenderer : ZiplineService {
fun render(payment: Payment): String
}
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class RealPaymentRenderer : PaymentRenderer {
override fun render(payment: Payment): String {
…
}
}
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class RealPaymentRenderer : PaymentRenderer {
override fun render(payment: Payment): String {
…
}
}
zipline.bind(RealPaymentRenderer())
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class RealPaymentRenderer : PaymentRenderer {
override fun render(payment: Payment): String {
…
}
}
zipline.bind(RealPaymentRenderer())
val renderer = zipline.take()
println(renderer.render(Payment(…))
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class RealPaymentRenderer : PaymentRenderer {
override fun render(payment: Payment): String {
/* Fancy new impl */
}
}
zipline.bind(RealPaymentRenderer())
val renderer = zipline.take()
println(renderer.render(Payment(…))
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zipline.bind(SystemLocationManager(…))
// Load Kotlin/JS
val renderer = zipline.take()
println(renderer.render(Payment(…))
class RealPaymentRenderer : PaymentRenderer {
override fun render(payment: Payment): String {
/* Fancy new impl */
}
}
zipline.bind(RealPaymentRenderer())
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zipline.bind(SystemLocationManager(…))
// Load Kotlin/JS
val renderer = zipline.take()
println(renderer.render(Payment(…))
class RealPaymentRenderer(
private val location: LocationManager,
) : PaymentRenderer {
override fun render(payment: Payment): String {
/* Fancy new impl */
}
}
val location = zipline.take()
zipline.bind(RealPaymentRenderer(location))
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interface SomeService : ZiplineService {
fun sync(in: String): String
}
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interface SomeService : ZiplineService {
fun sync(in: String): String
suspend fun async(in: String): String
}
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interface SomeService : ZiplineService {
fun sync(in: String): String
suspend fun async(in: String): String
fun stream(in: String): Flow
}
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interface SomeService : ZiplineService {
fun sync(in: String): String
suspend fun async(in: String): String
fun stream(in: String): Flow
fun stateStream(in: String): StateFlow
}
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interface SomeService : ZiplineService {
fun sync(in: String): String
suspend fun async(in: String): String
fun stream(in: Flow): String
fun stateStream(in: StateFlow): String
}
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interface SomeService : ZiplineService {
fun sync(in: String): String
suspend fun async(in: String): String
fun stream(in: Flow): String
fun stateStream(in: StateFlow): String
fun userTypes(in: Payment): RenderedPayment
}
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interface SomeService : ZiplineService {
…
fun userTypes(in: Payment): RenderedPayment
}
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interface SomeService : ZiplineService {
…
fun userTypes(in: Payment): RenderedPayment
internal object Adapter : ZiplineAdapter {
}
}
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interface SomeService : ZiplineService {
…
fun userTypes(in: Payment): RenderedPayment
internal object Adapter : ZiplineAdapter {
override fun outboundService(handler: Handler)
}
}
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interface SomeService : ZiplineService {
…
fun userTypes(in: Payment): RenderedPayment
internal object Adapter : ZiplineAdapter {
override fun outboundService(handler: Handler) =
object : SomeService {
override fun userTypes(in: Payment) =
handler.call(this, in) as RenderedPayment
}
}
}
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interface SomeService : ZiplineService {
…
fun userTypes(in: Payment): RenderedPayment
internal object Adapter : ZiplineAdapter {
override fun outboundService(handler: Handler) =
object : SomeService {
override fun userTypes(in: Payment) =
handler.call(this, in) as RenderedPayment
}
}
}
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interface SomeService : ZiplineService {
…
fun userTypes(in: Payment): RenderedPayment
internal object Adapter : ZiplineAdapter {
…
}
}
@Serializable
class RenderedPayment(…)
@Serializable
class Payment(…)
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QuickJS
function sayHello() {
return ['Hello', 'JavaScript']
.join(' ');
}
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QuickJS
function sayHello() {
return ['Hello', 'JavaScript']
.join(' ');
}
hello.js:1: function: sayHello
mode: strict
stack_size: 3
opcodes:
push_atom_value "Hello"
push_atom_value "JavaScript"
array_from 2
get_field2 join
push_atom_value " "
tail_call_method 1
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QuickJS
hello.js:1: function: sayHello
mode: strict
stack_size: 3
opcodes:
push_atom_value "Hello"
push_atom_value "JavaScript"
array_from 2
get_field2 join
push_atom_value " "
tail_call_method 1
"Hello, JavaScript"
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QuickJS
hello.js:1: function: sayHello
mode: strict
stack_size: 3
opcodes:
push_atom_value "Hello"
push_atom_value "JavaScript"
array_from 2
get_field2 join
push_atom_value " "
tail_call_method 1
function sayHello() {
return ['Hello', 'JavaScript']
.join(' ');
}
"Hello, JavaScript"
hello.js:1: function: sayHello
mode: strict
stack_size: 3
opcodes:
push_atom_value "Hello"
push_atom_value "JavaScript"
array_from 2
get_field2 join
push_atom_value " "
tail_call_method 1
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hello.js:1: function: sayHello
mode: strict
stack_size: 3
opcodes:
push_atom_value "Hello"
push_atom_value "JavaScript"
array_from 2
get_field2 join
push_atom_value " "
tail_call_method 1
function sayHello() {
return ['Hello', 'JavaScript']
.join(' ');
}
"Hello, JavaScript"
hello.js:1: function: sayHello
mode: strict
stack_size: 3
opcodes:
push_atom_value "Hello"
push_atom_value "JavaScript"
array_from 2
get_field2 join
push_atom_value " "
tail_call_method 1
Server:
Client:
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hello.js:1: function: sayHello
mode: strict
stack_size: 3
opcodes:
push_atom_value "Hello"
push_atom_value "JavaScript"
array_from 2
get_field2 join
push_atom_value " "
tail_call_method 1
function sayHello() {
return ['Hello', 'JavaScript']
.join(' ');
}
fun sayHello() {
return arrayOf("Hello", "JavaScript")
.asDynamic()
.join(" ")
}
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hello.js:1: function: sayHello
mode: strict
stack_size: 3
opcodes:
push_atom_value "Hello"
push_atom_value "JavaScript"
array_from 2
get_field2 join
push_atom_value " "
tail_call_method 1
function sayHello() {
return ['Hello', 'JavaScript']
.join(' ');
}
fun sayHello() {
return arrayOf("Hello", "JavaScript")
.asDynamic()
.join(" ")
}
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hello.js:1: function: sayHello
mode: strict
stack_size: 3
opcodes:
push_atom_value "Hello"
push_atom_value "JavaScript"
array_from 2
get_field2 join
push_atom_value " "
tail_call_method 1
function sayHello() {
return ['Hello', 'JavaScript']
.join(' ');
}
fun sayHello() {
return arrayOf("Hello", "JavaScript")
.asDynamic()
.join(" ")
}
{"version":3,"sources":
["../../src/commonMain/
kotlin/com/example/
Hello.kt"],"sourcesCont
ent":[null],,"names":
[],"mappings":";IAsBE,g
C;IAMA,wB;IAMA,4B;"}
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hello.js:1: function: sayHello
mode: strict
stack_size: 3
opcodes:
push_atom_value "Hello"
push_atom_value "JavaScript"
array_from 2
get_field2 join
push_atom_value " "
tail_call_method 1
function sayHello() {
return ['Hello', 'JavaScript']
.join(' ');
}
fun sayHello() {
return arrayOf("Hello", "JavaScript")
.asDynamic()
.join(" ")
}
{"version":3,"sources":
["../../src/commonMain/
kotlin/com/example/
Hello.kt"],"sourcesCont
ent":[null],,"names":
[],"mappings":";IAsBE,g
C;IAMA,wB;IAMA,4B;"}
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Hello.kt:1: function: sayHello
mode: strict
stack_size: 3
opcodes:
push_atom_value "Hello"
push_atom_value "JavaScript"
array_from 2
get_field2 join
push_atom_value " "
tail_call_method 1
function sayHello() {
return ['Hello', 'JavaScript']
.join(' ');
}
fun sayHello() {
return arrayOf("Hello", "JavaScript")
.asDynamic()
.join(" ")
}
{"version":3,"sources":
["../../src/commonMain/
kotlin/com/example/
Hello.kt"],"sourcesCont
ent":[null],,"names":
[],"mappings":";IAsBE,g
C;IAMA,wB;IAMA,4B;"}
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Hello.kt:1: function: sayHello
mode: strict
stack_size: 3
opcodes:
push_atom_value "Hello"
push_atom_value "JavaScript"
array_from 2
get_field2 join
push_atom_value " "
tail_call_method 1
function sayHello() {
return ['Hello', 'JavaScript']
.join(' ');
}
fun sayHello() {
return arrayOf("Hello", "JavaScript")
.asDynamic()
.join(" ")
}
{"version":3,"sources":
["../../src/commonMain/
kotlin/com/example/
Hello.kt"],"sourcesCont
ent":[null],,"names":
[],"mappings":";IAsBE,g
C;IAMA,wB;IAMA,4B;"}
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java.lang.Exception: unexpected timezone: America/Gotham
at captureStack (runtime/coreRuntime.kt:86)
at IllegalStateException_init (kotlin-kotlin-stdlib-js-ir.js)
at (app.cash.worldclock/TimeFormatter.kt:98)
at (app.cash.worldclock/WorldClockJs.kt:615)
at (InboundService.kt:837)
at (zipline-root-zipline.js)
at app.cash.zipline.OutboundService.runJob(platform.kt:37)
at app.cash.zipline.EventLoop.run(CoroutineEventLoop.kt:57)
at j.u.concurrent.Executor.runWorker(ThreadPoolExecutor.java:1167)
at j.u.concurrent.Executor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:920)
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java.lang.Exception: unexpected timezone: America/Gotham
at captureStack (runtime/coreRuntime.kt:86)
at IllegalStateException_init (kotlin-kotlin-stdlib-js-ir.js)
at (app.cash.worldclock/TimeFormatter.kt:98)
at (app.cash.worldclock/WorldClockJs.kt:615)
at (InboundService.kt:837)
at (zipline-root-zipline.js)
at app.cash.zipline.OutboundService.runJob(platform.kt:37)
at app.cash.zipline.EventLoop.run(CoroutineEventLoop.kt:57)
at j.u.concurrent.Executor.runWorker(ThreadPoolExecutor.java:1167)
at j.u.concurrent.Executor$Worker.run(ThreadPoolExecutor.java:641)
at java.lang.Thread.run(Thread.java:920)
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Zipline
JavaScript VM
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Zipline
JavaScript VM
2015 - 2023
WASM VM
Coming 2024
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Redwood Zipline
Treehouse
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Treehouse
val root = findViewById(android.R.id.content)!!
val composition = RedwoodComposition(
scope = mainScope,
container = ViewGroupChildren(root),
provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
),
)
composition.setContent {
Counter()
}
Treehouse Counter Sample
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Treehouse Counter Sample
val root = findViewById(android.R.id.content)!!
val composition = RedwoodComposition(
scope = mainScope,
container = ViewGroupChildren(root),
provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
),
)
composition.setContent {
Counter()
}
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Treehouse Counter Sample
val root = findViewById(android.R.id.content)!!
val composition = RedwoodComposition(
scope = mainScope,
container = ViewGroupChildren(root),
provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
),
)
composition.setContent {
Counter()
}
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Treehouse Counter Sample
)
val root = findViewById(android.R.id.content)!!
val composition = RedwoodComposition(
scope = mainScope,
container = ViewGroupChildren(root),
provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
),
)
composition.setContent {
Counter()
}
val = Redwood (
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val composition = RedwoodComposition(
scope = mainScope,
)
composition.setContent {
Counter()
}
val root = findViewById(android.R.id.content)!!
val rendering = RedwoodRendering(
container = ViewGroupChildren(root),
provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
),
)
Presenter
Compose
Widgets
Platform UI
Zipline
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val composition = RedwoodComposition(
scope = mainScope,
)
composition.setContent {
Counter()
}
Widgets
Zipline
Presenter
Platform UI
Compose
val root = findViewById(android.R.id.content)!!
val container = ViewGroupChildren(root)
val provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
)
val rendering = RedwoodRendering(
container = container,
provider = provider,
)
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val composition = RedwoodComposition(
scope = mainScope,
)
composition.setContent {
Counter()
}
Widgets
Zipline
Presenter
Platform UI
Compose
val root = findViewById(android.R.id.content)!!
val container = ViewGroupChildren(root)
val provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
)
val rendering = RedwoodRendering(
container = container,
provider = provider,
)
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val composition = RedwoodComposition(
scope = mainScope,
)
composition.setContent {
Counter()
}
Widgets
Zipline
Presenter
Platform UI
Compose
val root = findViewById(android.R.id.content)!!
val container = ViewGroupChildren(root)
val provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
)
val rendering = RedwoodRendering(
container = container,
provider = provider,
)
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val composition = RedwoodComposition(
scope = mainScope,
)
composition.setContent {
Counter()
}
Widgets
kotlinx
serialization
Zipline
Presenter
Platform UI
Compose
kotlinx
serialization
val root = findViewById(android.R.id.content)!!
val container = ViewGroupChildren(root)
val provider = SchemaWidgetFactories(
Counter = AndroidCounterWidgetFactory(this),
RedwoodLayout = ViewRedwoodLayoutWidgetFactory(this),
)
val rendering = RedwoodRendering(
container = container,
provider = provider,
)
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Schema
Widgets
Compose
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Schema
Widgets
Compose
Compose
Protocol
Widget
Protocol
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Widgets
Widget
Protocol
Zipline
Presenter
Platform UI
Compose
Compose
Protocol
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Widgets
Widget
Protocol
Zipline
Platform UI
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Widgets
Widget
Protocol
Zipline
Platform UI
Presenter Compose
Compose
Protocol
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Redwood Protocol
data class Column(
val children: () -> Unit,
)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
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Redwood Protocol
@Widget(1)
data class Column(
val children: () -> Unit,
)
@Widget(2)
data class TextInput(
val hint: String,
val text: String,
val onTextChanged: (String) -> Unit,
)
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Redwood Protocol
@Widget(1)
data class Column(
val children: () -> Unit,
)
@Widget(2)
data class TextInput(
@Property(1) val hint: String,
@Property(2) val text: String,
@Property(3) val onTextChanged: (String) -> Unit,
)
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Redwood Protocol
@Widget(1)
data class Column(
@Children(1) val children: () -> Unit,
)
@Widget(2)
data class TextInput(
@Property(1) val hint: String,
@Property(2) val text: String,
@Property(3) val onTextChanged: (String) -> Unit,
)
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Widgets
Widget
Protocol
Zipline
Platform UI
Presenter Compose
Compose
Protocol
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Treehouse
Widgets
Widget
Protocol
Zipline
Platform UI
Presenter Compose
Compose
Protocol
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Treehouse Demo
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No content
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Treehouse Demo
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Redwood Zipline
Treehouse
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deviceframes.com
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.com/cashapp/zipline
.com/cashapp/redwood
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@jw@jakewharton.com
Playing in the Treehouse
with Redwood and Zipline