feat(android): init basic marker and polylines

composeApp/build.gradle.kts

@@ -41,6 +41,7 @@ kotlin {
             implementation(compose.runtime)
             implementation(compose.foundation)
             implementation(compose.material)
+            implementation(compose.material3)
             implementation(compose.ui)
             implementation(compose.components.resources)
             implementation(compose.components.uiToolingPreview)

composeApp/src/androidMain/kotlin/moe/lava/banksia/native/maps/Maps.android.kt

@@ -1,13 +1,96 @@
 package moe.lava.banksia.native.maps
 
+import android.app.ActivityManager
+import android.content.Context
+import android.os.Build
+import android.util.DisplayMetrics
+import android.view.View
+import android.view.WindowManager
+import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.add
+import androidx.compose.foundation.layout.asPaddingValues
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.safeDrawing
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.SheetState
+import androidx.compose.material3.SheetValue
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalDensity
+import com.google.android.gms.maps.model.CameraPosition
+import com.google.android.gms.maps.model.LatLng
+import com.google.maps.android.compose.ComposeMapColorScheme
+import com.google.maps.android.compose.DefaultMapProperties
+import com.google.maps.android.compose.DefaultMapUiSettings
 import com.google.maps.android.compose.GoogleMap
+import com.google.maps.android.compose.Marker
+import com.google.maps.android.compose.Polyline
+import com.google.maps.android.compose.rememberCameraPositionState
+import kotlin.math.roundToInt
 
+
+fun Point.toLatLng(): LatLng = LatLng(this.lat, this.lng)
+
+@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 actual fun Maps(
     modifier: Modifier,
-    markers: List<Marker>
+    markers: List<Marker>,
+    polylines: List<Polyline>,
+    cameraPosition: Point,
+    sheetState: SheetState,
 ) {
-    GoogleMap()
+    val extInsets = if (
+        sheetState.currentValue != SheetValue.Hidden ||
+        sheetState.targetValue != SheetValue.Hidden
+    ) {
+        val context = LocalContext.current
+        val windowManager = remember { context.getSystemService(Context.WINDOW_SERVICE) as WindowManager }
+        val screenHeight = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R)
+            windowManager.currentWindowMetrics.bounds.height()
+        else {
+            var outMetrics = DisplayMetrics()
+            @Suppress("DEPRECATION")
+            windowManager.defaultDisplay.getMetrics(outMetrics)
+            outMetrics.heightPixels
+        }
+        val scaffoldOffset = sheetState.requireOffset().roundToInt()
+        (screenHeight - scaffoldOffset - WindowInsets.safeDrawing.getBottom(LocalDensity.current)).coerceAtLeast(0)
+    } else 0
+    var camPos = rememberCameraPositionState()
+    LaunchedEffect(cameraPosition) {
+        camPos.position = CameraPosition(cameraPosition.toLatLng(), 16.0f, 0.0f, 0.0f)
+    }
+
+    GoogleMap(
+        modifier = Modifier.fillMaxSize(),
+        cameraPositionState = camPos,
+        mapColorScheme = ComposeMapColorScheme.FOLLOW_SYSTEM,
+        properties = DefaultMapProperties.copy(
+            //mapStyleOptions = MapStyleOptions.loadRawResourceStyle(LocalContext.current, R.raw.def_mapstyle),
+            //isMyLocationEnabled = checkLocationPermission(),
+        ),
+        uiSettings = DefaultMapUiSettings.copy(
+            zoomControlsEnabled = false,
+            myLocationButtonEnabled = false,
+            mapToolbarEnabled = false,
+        ),
+        contentPadding = WindowInsets.safeDrawing.add(WindowInsets(bottom = extInsets)).asPaddingValues()
+    ) {
+        for (marker in markers) {
+            Marker(
+                name = marker.name,
+                onClick = marker.onClick
+            )
+        }
+        for (polyline in polylines) {
+            Polyline(
+                points = polyline.points.map { it.toLatLng() },
+                color = polyline.colour
+            )
+        }
+    }
 }

composeApp/src/commonMain/kotlin/moe/lava/banksia/App.kt

@@ -2,14 +2,16 @@ package moe.lava.banksia
 
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.foundation.Image
+import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.material.BottomSheetScaffold
-import androidx.compose.material.Button
-import androidx.compose.material.MaterialTheme
-import androidx.compose.material.Scaffold
-import androidx.compose.material.Text
+import androidx.compose.material3.BottomSheetScaffold
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.SheetValue
+import androidx.compose.material3.rememberBottomSheetScaffoldState
+import androidx.compose.material3.rememberStandardBottomSheetState
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -20,12 +22,25 @@ import banksia.composeapp.generated.resources.Res
 import banksia.composeapp.generated.resources.compose_multiplatform
 import moe.lava.banksia.native.maps.Maps
 
+@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 @Preview
 fun App() {
+    val scaffoldState = rememberBottomSheetScaffoldState(
+        bottomSheetState = rememberStandardBottomSheetState(
+            initialValue = SheetValue.Hidden,
+            skipHiddenState = false
+        )
+    )
     MaterialTheme {
-        Scaffold {
-            Maps(modifier = Modifier.fillMaxSize())
+        BottomSheetScaffold(
+            scaffoldState = scaffoldState,
+            sheetContent = { Box(modifier = Modifier) },
+        ) {
+            Maps(
+                modifier = Modifier.fillMaxSize(),
+                sheetState = scaffoldState.bottomSheetState,
+            )
         }
     }
 }

composeApp/src/commonMain/kotlin/moe/lava/banksia/native/maps/Maps.kt

@@ -1,12 +1,21 @@
 package moe.lava.banksia.native.maps
 
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.SheetState
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.Color
 
-data class Marker(val name: String)
+data class Marker(val name: String, val onClick: () -> Boolean)
+data class Point(val lat: Double, val lng: Double)
+data class Polyline(val points: List<Point>, val colour: Color)
 
+@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 expect fun Maps(
     modifier: Modifier = Modifier,
-    markers: List<Marker> = listOf()
+    markers: List<Marker> = listOf(),
+    polylines: List<Polyline> = listOf(),
+    cameraPosition: Point = Point(-37.8136, 144.9631),
+    sheetState: SheetState,
 )

composeApp/src/iosMain/kotlin/moe/lava/banksia/native/maps/Maps.ios.kt

@@ -1,12 +1,18 @@
 package moe.lava.banksia.native.maps
 
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.SheetState
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 
+@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 actual fun Maps(
     modifier: Modifier,
-    markers: List<Marker>
+    markers: List<Marker>,
+    polylines: List<Polyline>,
+    cameraPosition: Point,
+    sheetState: SheetState,
 ) {
     TODO("Not yet implemented")
 }