XML to Jetpack Compose Converter
Convert Android XML layouts to idiomatic Jetpack Compose code.
Conversion Process
- Analyze the XML structure and identify root layout
- Map each view to its Compose equivalent
- Convert attributes to Modifier chains (order matters!)
- Handle resource references (@string, @dimen, @color)
- Extract styles into reusable composables or theme values
Quick Reference
Layouts
| XML | Compose |
|---|---|
LinearLayout (vertical) | Column |
LinearLayout (horizontal) | Row |
FrameLayout | Box |
ConstraintLayout | Column/Row or ConstraintLayout (dependency) |
ScrollView | Column + Modifier.verticalScroll() |
RecyclerView | LazyColumn / LazyRow |
ViewPager2 | HorizontalPager |
Common Widgets
| XML | Compose |
|---|---|
TextView | Text |
EditText | TextField / OutlinedTextField |
Button | Button |
ImageView | Image / AsyncImage (Coil) |
CheckBox | Checkbox |
Switch | Switch |
ProgressBar | CircularProgressIndicator / LinearProgressIndicator |
CardView | Card |
Modifier Order
Order matters! Follow this sequence:
clickable/toggleablepadding(outer)size/fillMaxWidth/weightbackground/clipborderpadding(inner)
Detailed Mappings
See reference files for complete mappings:
references/layouts.md— Layout containersreferences/widgets.md— UI componentsreferences/attributes.md— XML attributes to Modifiers
Output Guidelines
- Use Material 3 — Import from
androidx.compose.material3 - Prefer built-in modifiers — Avoid custom implementations
- Handle nullability — XML allows null text, Compose needs defaults
- Extract dimensions — Use
dimensionResource()or define in theme - Keep composables stateless — Hoist state to caller
- Add Preview — Include
@Previewfunction for each composable
Example
Input:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="16dp">
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="@string/welcome"
android:textSize="24sp"
android:textStyle="bold"/>
<Button
android:id="@+id/action_button"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:text="@string/get_started"/>
</LinearLayout>
Output:
@Composable
fun WelcomeSection(
onGetStartedClick: () -> Unit,
modifier: Modifier = Modifier
) {
Column(
modifier = modifier
.fillMaxWidth()
.padding(16.dp)
) {
Text(
text = stringResource(R.string.welcome),
fontSize = 24.sp,
fontWeight = FontWeight.Bold
)
Spacer(modifier = Modifier.height(8.dp))
Button(
onClick = onGetStartedClick,
modifier = Modifier.fillMaxWidth()
) {
Text(text = stringResource(R.string.get_started))
}
}
}
@Preview(showBackground = true)
@Composable
private fun WelcomeSectionPreview() {
WelcomeSection(onGetStartedClick = {})
}
Key conversions:
match_parent→fillMaxWidth()/fillMaxHeight()wrap_content→ default (no modifier needed)layout_marginTop→Spacerbetween elements- Click listeners → lambda parameters
- IDs → not needed (state hoisting instead)