diff --git a/android-offline-maps/app/.gitignore b/android-offline-maps/app/.gitignore
new file mode 100644
index 0000000..42afabf
--- /dev/null
+++ b/android-offline-maps/app/.gitignore
@@ -0,0 +1 @@
+/build
\ No newline at end of file
diff --git a/android-offline-maps/app/build.gradle.kts b/android-offline-maps/app/build.gradle.kts
new file mode 100644
index 0000000..9f730ed
--- /dev/null
+++ b/android-offline-maps/app/build.gradle.kts
@@ -0,0 +1,61 @@
+plugins {
+ alias(libs.plugins.android.application)
+ alias(libs.plugins.kotlin.android)
+ alias(libs.plugins.kotlin.compose)
+}
+
+android {
+ namespace = "com.example.mapbox_offline"
+ compileSdk = 36
+
+ defaultConfig {
+ applicationId = "com.example.mapbox_offline"
+ minSdk = 24
+ targetSdk = 35
+ versionCode = 1
+ versionName = "1.0"
+
+ testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+ }
+
+ buildTypes {
+ release {
+ isMinifyEnabled = false
+ proguardFiles(
+ getDefaultProguardFile("proguard-android-optimize.txt"),
+ "proguard-rules.pro"
+ )
+ }
+ }
+ compileOptions {
+ sourceCompatibility = JavaVersion.VERSION_11
+ targetCompatibility = JavaVersion.VERSION_11
+ }
+ kotlinOptions {
+ jvmTarget = "11"
+ }
+ buildFeatures {
+ compose = true
+ }
+}
+
+dependencies {
+
+ implementation(libs.androidx.core.ktx)
+ implementation(libs.androidx.lifecycle.runtime.ktx)
+ implementation(libs.androidx.activity.compose)
+ implementation(platform(libs.androidx.compose.bom))
+ implementation(libs.androidx.ui)
+ implementation(libs.androidx.ui.graphics)
+ implementation(libs.androidx.ui.tooling.preview)
+ implementation(libs.androidx.material3)
+ testImplementation(libs.junit)
+ androidTestImplementation(libs.androidx.junit)
+ androidTestImplementation(libs.androidx.espresso.core)
+ androidTestImplementation(platform(libs.androidx.compose.bom))
+ androidTestImplementation(libs.androidx.ui.test.junit4)
+ debugImplementation(libs.androidx.ui.tooling)
+ debugImplementation(libs.androidx.ui.test.manifest)
+ implementation("com.mapbox.maps:android-ndk27:11.15.3")
+ implementation("com.mapbox.extension:maps-compose-ndk27:11.15.3")
+}
\ No newline at end of file
diff --git a/android-offline-maps/app/proguard-rules.pro b/android-offline-maps/app/proguard-rules.pro
new file mode 100644
index 0000000..481bb43
--- /dev/null
+++ b/android-offline-maps/app/proguard-rules.pro
@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+# http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+# public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
\ No newline at end of file
diff --git a/android-offline-maps/app/src/androidTest/java/com/example/mapbox_offline/ExampleInstrumentedTest.kt b/android-offline-maps/app/src/androidTest/java/com/example/mapbox_offline/ExampleInstrumentedTest.kt
new file mode 100644
index 0000000..1ccb677
--- /dev/null
+++ b/android-offline-maps/app/src/androidTest/java/com/example/mapbox_offline/ExampleInstrumentedTest.kt
@@ -0,0 +1,24 @@
+package com.example.mapbox_offline
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+ @Test
+ fun useAppContext() {
+ // Context of the app under test.
+ val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+ assertEquals("com.example.mapbox_offline", appContext.packageName)
+ }
+}
\ No newline at end of file
diff --git a/android-offline-maps/app/src/main/AndroidManifest.xml b/android-offline-maps/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..177187d
--- /dev/null
+++ b/android-offline-maps/app/src/main/AndroidManifest.xml
@@ -0,0 +1,28 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/android-offline-maps/app/src/main/java/com/example/mapbox_offline/MainActivity.kt b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/MainActivity.kt
new file mode 100644
index 0000000..6a65f50
--- /dev/null
+++ b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/MainActivity.kt
@@ -0,0 +1,86 @@
+package com.example.mapbox_offline
+
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.BackHandler
+import androidx.activity.compose.setContent
+import androidx.compose.foundation.layout.*
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.KeyboardArrowDown
+import androidx.compose.material3.Button
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import com.mapbox.geojson.Point
+import com.mapbox.maps.extension.compose.MapboxMap
+import com.mapbox.maps.extension.compose.animation.viewport.rememberMapViewportState
+import com.example.mapbox_offline.OfflineRegion
+
+public class MainActivity : ComponentActivity() {
+ @OptIn(ExperimentalMaterial3Api::class)
+ override fun onCreate(savedInstanceState: Bundle?) {
+ super.onCreate(savedInstanceState)
+ // Ensure Mapbox standard style pack is present (no-op if already downloaded).
+ OfflineRegionManager.ensureStylePackDownloaded(this)
+ setContent {
+ var showingDownload by remember { mutableStateOf(false) }
+
+ // Ensure system back button will dismiss the modal when open
+ if (showingDownload) {
+ BackHandler { showingDownload = false }
+ }
+
+ Box(Modifier.fillMaxSize()) {
+ MapboxMap(
+ Modifier.fillMaxSize(),
+ mapViewportState = rememberMapViewportState {
+ setCameraOptions {
+ zoom(2.0)
+ center(Point.fromLngLat(-98.0, 39.5))
+ pitch(0.0)
+ bearing(0.0)
+ }
+ },
+ )
+
+ // Download button overlay (top-right)
+ Box(
+ modifier = Modifier
+ .fillMaxSize()
+ // moved down by increasing top padding
+ .padding(start = 12.dp, end = 12.dp, top = 72.dp, bottom = 12.dp),
+ contentAlignment = Alignment.TopEnd
+ ) {
+ Button(onClick = { showingDownload = true }) {
+ Icon(Icons.Default.KeyboardArrowDown, contentDescription = null)
+ Spacer(Modifier.width(8.dp))
+ Text("Manage Offline Regions")
+ }
+ }
+
+ // Present the TileRegionDownloadScreen as a full-screen overlay that completely covers the map
+ if (showingDownload) {
+ Surface(
+ modifier = Modifier
+ .fillMaxSize(),
+ color = MaterialTheme.colorScheme.background
+ ) {
+ Column(modifier = Modifier.fillMaxSize()) {
+ // pass onDone so the top-left arrow dismisses the modal
+ TileRegionDownloadScreen(onDone = { showingDownload = false })
+ }
+ }
+ }
+
+ }
+ }
+ }
+}
\ No newline at end of file
diff --git a/android-offline-maps/app/src/main/java/com/example/mapbox_offline/OfflineRegion.kt b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/OfflineRegion.kt
new file mode 100644
index 0000000..826f843
--- /dev/null
+++ b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/OfflineRegion.kt
@@ -0,0 +1,26 @@
+package com.example.mapbox_offline
+
+import com.mapbox.geojson.Point
+import com.mapbox.geojson.Polygon
+import com.mapbox.maps.CoordinateBounds
+
+data class OfflineRegion(
+ val id: String,
+ val name: String,
+ val bounds: CoordinateBounds
+) {
+ // convert CoordinateBounds to Polygon (closed rectangular ring)
+ val polygon: Polygon
+ get() {
+ val sw = bounds.southwest
+ val ne = bounds.northeast
+ val coords = listOf(
+ Point.fromLngLat(sw.longitude(), sw.latitude()),
+ Point.fromLngLat(ne.longitude(), sw.latitude()),
+ Point.fromLngLat(ne.longitude(), ne.latitude()),
+ Point.fromLngLat(sw.longitude(), ne.latitude()),
+ Point.fromLngLat(sw.longitude(), sw.latitude())
+ )
+ return Polygon.fromLngLats(listOf(coords))
+ }
+}
diff --git a/android-offline-maps/app/src/main/java/com/example/mapbox_offline/OfflineRegionManager.kt b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/OfflineRegionManager.kt
new file mode 100644
index 0000000..14ef229
--- /dev/null
+++ b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/OfflineRegionManager.kt
@@ -0,0 +1,176 @@
+package com.example.mapbox_offline
+
+import android.content.Context
+import android.util.Log
+import com.mapbox.bindgen.Value
+import com.mapbox.geojson.Geometry
+import com.mapbox.maps.Style
+import com.mapbox.common.TileRegion
+import com.mapbox.common.TileRegionLoadOptions
+import com.mapbox.common.TileStore
+import com.mapbox.common.TilesetDescriptor
+import com.mapbox.maps.TilesetDescriptorOptions
+import com.mapbox.maps.StylePackLoadOptions
+import java.util.concurrent.atomic.AtomicReference
+import com.mapbox.maps.GlyphsRasterizationMode
+import com.mapbox.maps.OfflineManager
+import com.mapbox.common.MapboxOptions
+import com.mapbox.maps.mapsOptions
+
+
+object OfflineRegionManager {
+ private const val TAG = "OfflineRegionManager"
+ private val offlineManager: OfflineManager = OfflineManager()
+ private val tileStore: TileStore? = MapboxOptions.mapsOptions.tileStore!!
+
+
+ fun ensureStylePackDownloaded(context: Context) {
+ try {
+ val stylePackOptions = StylePackLoadOptions.Builder()
+ .glyphsRasterizationMode(GlyphsRasterizationMode.IDEOGRAPHS_RASTERIZED_LOCALLY)
+ .metadata(Value("mapbox-standard-stylepack"))
+ .acceptExpired(false)
+ .build()
+
+ offlineManager.loadStylePack(
+ Style.STANDARD,
+ stylePackOptions,
+ { progress ->
+ //
+ },
+ { expected ->
+ expected.value?.let { stylePack ->
+ // Style pack download finishes successfully
+ Log.d(TAG, "Style pack downloaded: $stylePack")
+ }
+ expected.error?.let {
+ // Handle error occurred during the style pack download.
+ }
+ }
+ )
+
+ } catch (e: Throwable) {
+ Log.w(TAG, "Style pack API not available or failed: ${e.message}")
+ }
+ }
+
+ fun downloadRegion(
+ region: OfflineRegion,
+ downloadingRegions: Set,
+ onDownloadingRegionsUpdate: (Set) -> Unit,
+ onProgress: (String, Float) -> Unit,
+ onCompletion: (String, Result) -> Unit
+ ) {
+ if (downloadingRegions.contains(region.id)) {
+ Log.d(TAG, "Region ${region.id} is already downloading; skipping")
+// return
+ }
+
+ val tilesetDescriptorOptions = TilesetDescriptorOptions.Builder()
+ .styleURI(Style.STANDARD)
+ .minZoom(10)
+ .maxZoom(14)
+ .build()
+
+ val tilesetDescriptor = offlineManager.createTilesetDescriptor(tilesetDescriptorOptions)
+
+
+
+ val loadOptions: TileRegionLoadOptions =TileRegionLoadOptions.Builder()
+ .geometry(region.polygon as Geometry)
+ .descriptors(listOf(tilesetDescriptor))
+ .metadata(Value(region.name))
+ .acceptExpired(true)
+ .build()
+
+
+ val updated = downloadingRegions.toMutableSet()
+ updated.add(region.id)
+ onDownloadingRegionsUpdate(updated)
+ onProgress(region.id, 0.0f)
+
+ // Ensure tileStore is available before calling its methods
+ val ts = tileStore
+ if (ts == null) {
+ Log.e(TAG, "TileStore not available")
+ val updatedAfter = updated.toMutableSet()
+ updatedAfter.remove(region.id)
+ onDownloadingRegionsUpdate(updatedAfter)
+ onCompletion(region.id, Result.failure(Exception("TileStore not available")))
+ return
+ }
+ // Safe to use non-null ts from here on
+ ts.loadTileRegion(
+ region.id,
+ loadOptions,
+ { progress ->
+ val total = maxOf(progress.requiredResourceCount, 1)
+ val progressVal = progress.completedResourceCount.toFloat() / total.toFloat()
+ onProgress(region.id, progressVal)
+ }
+ ) { result ->
+ val updatedAfter = updated.toMutableSet()
+ updatedAfter.remove(region.id)
+ onDownloadingRegionsUpdate(updatedAfter)
+
+ if (result.isValue) {
+ val tileRegion = result.value!!
+ onCompletion(region.id, Result.success(tileRegion))
+ } else {
+ // result.error may be a Serializable (not a Throwable). Convert safely to Throwable.
+ val rawError = result.error
+ val throwable = when (rawError) {
+ is Throwable -> rawError
+ null -> Exception("Unknown error")
+ else -> Exception(rawError.toString())
+ }
+ onCompletion(region.id, Result.failure(throwable))
+ }
+ }
+
+ }
+
+ fun clearAllRegions(onCompletion: () -> Unit) {
+ tileStore?.getAllTileRegions { result ->
+ if (result.isValue) {
+ val tileRegions = result.value ?: emptyList()
+ if (tileRegions.isEmpty()) {
+ tileStore.clearAmbientCache { cacheResult ->
+ if (cacheResult.isValue) {
+ Log.i(TAG, "Cleared ${cacheResult.value} bytes from cache")
+ } else {
+ Log.e(TAG, "Failed to clear cache: ${cacheResult.error}")
+ }
+ onCompletion()
+ }
+// return
+ }
+
+ val removalsPending = AtomicReference(tileRegions.size)
+ for (tileRegion in tileRegions) {
+ tileStore.removeTileRegion(tileRegion.id) { removeResult ->
+ if (removeResult.isValue) {
+ Log.i(TAG, "Removed region: ${tileRegion.id}")
+ } else {
+ Log.e(TAG, "Failed to remove region ${tileRegion.id}: ${removeResult.error}")
+ }
+ val remaining = removalsPending.updateAndGet { it - 1 }
+ if (remaining <= 0) {
+ tileStore.clearAmbientCache { cacheResult ->
+ if (cacheResult.isValue) {
+ Log.i(TAG, "Cleared ${cacheResult.value} bytes from cache")
+ } else {
+ Log.e(TAG, "Failed to clear cache: ${cacheResult.error}")
+ }
+ onCompletion()
+ }
+ }
+ }
+ }
+ } else {
+ Log.e(TAG, "Failed to get tile regions: ${result.error}")
+ onCompletion()
+ }
+ }
+ }
+}
diff --git a/android-offline-maps/app/src/main/java/com/example/mapbox_offline/TileRegionDownloadView.kt b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/TileRegionDownloadView.kt
new file mode 100644
index 0000000..23be727
--- /dev/null
+++ b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/TileRegionDownloadView.kt
@@ -0,0 +1,151 @@
+package com.example.mapbox_offline
+
+import android.util.Log
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.lazy.LazyColumn
+import androidx.compose.foundation.lazy.items
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.ArrowBack
+import androidx.compose.material.icons.filled.CheckCircle
+import androidx.compose.material3.Button
+import androidx.compose.material3.CircularProgressIndicator
+import androidx.compose.material3.Divider
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
+import androidx.compose.material3.TopAppBar
+import androidx.compose.runtime.*
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import com.mapbox.common.MapboxOptions
+import com.mapbox.common.TileStore
+import com.mapbox.common.TileRegion
+import com.mapbox.maps.mapsOptions
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun TileRegionDownloadScreen(
+ viewModel: TileRegionDownloadViewModel = TileRegionDownloadViewModel(),
+ onDone: () -> Unit = {}
+) {
+ Scaffold(
+ topBar = {
+ TopAppBar(
+ navigationIcon = {
+ IconButton(onClick = onDone) {
+ Icon(Icons.Filled.ArrowBack, contentDescription = "Back")
+ }
+ },
+ title = { Text("Offline Regions") },
+ actions = {
+ TextButton(onClick = { viewModel.clearAllRegions() }) {
+ Text("Clear All", color = MaterialTheme.colorScheme.error)
+ }
+ }
+ )
+ }
+ ) { padding ->
+ LazyColumn(modifier = Modifier
+ .fillMaxSize()
+ .padding(padding)
+ .padding(8.dp)
+ ) {
+ items(viewModel.regions) { region ->
+ RegionRow(
+ region = region,
+ isDownloading = viewModel.downloadingRegions.contains(region.id),
+ progress = viewModel.downloadProgress[region.id] ?: 0f,
+ refreshTrigger = viewModel.refreshTrigger,
+ onDownload = { viewModel.downloadRegion(region) }
+ )
+ Divider()
+ }
+ }
+ }
+}
+
+@Composable
+fun RegionRow(
+ region: OfflineRegion,
+ isDownloading: Boolean,
+ progress: Float,
+ refreshTrigger: Boolean,
+ onDownload: () -> Unit
+) {
+ var isDownloaded by remember { mutableStateOf(false) }
+ var sizeInMB by remember { mutableStateOf(0.0) }
+ val TAG = "RegionRow-${region.id}"
+ val tileStore: TileStore? = MapboxOptions.mapsOptions.tileStore
+
+
+ fun checkIfDownloaded() {
+ try {
+ tileStore?.getTileRegion(region.id) { result ->
+ if (result.isValue) {
+ val tileRegion: TileRegion? = result.value
+ if (tileRegion != null) {
+ isDownloaded = true
+ sizeInMB = tileRegion.completedResourceSize.toDouble() / (1024.0 * 1024.0)
+ } else {
+ isDownloaded = false
+ sizeInMB = 0.0
+ }
+ } else {
+ isDownloaded = false
+ sizeInMB = 0.0
+ }
+ }
+ } catch (e: Throwable) {
+ Log.w(TAG, "checkIfDownloaded failed: ${e.message}")
+ isDownloaded = false
+ sizeInMB = 0.0
+ }
+ }
+
+ LaunchedEffect(key1 = isDownloading, key2 = refreshTrigger) {
+ // when row appears or download state changes, re-check
+ checkIfDownloaded()
+ }
+
+ Row(
+ modifier = Modifier
+ .fillMaxWidth()
+ .padding(vertical = 12.dp, horizontal = 4.dp),
+ verticalAlignment = Alignment.CenterVertically
+ ) {
+ Column(modifier = Modifier.weight(1f)) {
+ Text(region.name, style = MaterialTheme.typography.titleLarge)
+ Spacer(modifier = Modifier.height(4.dp))
+ when {
+ isDownloaded -> Text("Downloaded • ${"%.1f".format(sizeInMB)} MB", style = MaterialTheme.typography.labelSmall, color = MaterialTheme.colorScheme.primary)
+ isDownloading -> Text("Downloading...", style = MaterialTheme.typography.labelSmall, color = MaterialTheme.colorScheme.primary)
+ else -> Text("Not downloaded", style = MaterialTheme.typography.labelSmall, color = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.6f))
+ }
+ }
+
+ Spacer(modifier = Modifier.width(8.dp))
+
+ when {
+ isDownloading -> {
+ Column(horizontalAlignment = Alignment.CenterHorizontally) {
+ CircularProgressIndicator(progress = progress, modifier = Modifier.size(36.dp))
+ Spacer(modifier = Modifier.height(4.dp))
+ Text("${(progress * 100).toInt()}%", style = MaterialTheme.typography.labelSmall, color = MaterialTheme.colorScheme.primary)
+ }
+ }
+ isDownloaded -> {
+ Icon(Icons.Filled.CheckCircle, contentDescription = "Downloaded", tint = MaterialTheme.colorScheme.primary)
+ }
+ else -> {
+ Button(onClick = onDownload) {
+ Text("Download")
+ }
+ }
+ }
+ }
+}
diff --git a/android-offline-maps/app/src/main/java/com/example/mapbox_offline/TileRegionDownloadViewModel.kt b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/TileRegionDownloadViewModel.kt
new file mode 100644
index 0000000..361111e
--- /dev/null
+++ b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/TileRegionDownloadViewModel.kt
@@ -0,0 +1,85 @@
+package com.example.mapbox_offline
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.ViewModel
+import com.mapbox.geojson.Point
+import com.mapbox.maps.CoordinateBounds
+import com.mapbox.common.TileRegion
+import android.util.Log
+
+class TileRegionDownloadViewModel : ViewModel() {
+ private val TAG = "TileRegionVM"
+
+ var downloadingRegions by mutableStateOf(setOf())
+ private set
+
+ var downloadProgress by mutableStateOf(mapOf())
+ private set
+
+ var refreshTrigger by mutableStateOf(false)
+ private set
+
+ val regions = listOf(
+ OfflineRegion(
+ id = "new-york-region",
+ name = "New York",
+ bounds = CoordinateBounds(
+ Point.fromLngLat(-74.28127, 40.48398),
+ Point.fromLngLat(-73.58442, 40.98701)
+ )
+ ),
+ OfflineRegion(
+ id = "london-region",
+ name = "London",
+ bounds = CoordinateBounds(
+ Point.fromLngLat(-0.1278, 51.4874),
+ Point.fromLngLat(-0.0978, 51.5174)
+ )
+ ),
+ OfflineRegion(
+ id = "paris-region",
+ name = "Paris",
+ bounds = CoordinateBounds(
+ Point.fromLngLat(2.3522, 48.8366),
+ Point.fromLngLat(2.3822, 48.8666)
+ )
+ )
+ )
+
+ fun downloadRegion(region: OfflineRegion) {
+ OfflineRegionManager.downloadRegion(
+ region = region,
+ downloadingRegions = downloadingRegions,
+ onDownloadingRegionsUpdate = { updatedSet ->
+ // replace whole set so Compose re-composes
+ downloadingRegions = updatedSet
+ },
+ onProgress = { regionId, progress ->
+ downloadProgress = downloadProgress + (regionId to progress)
+ },
+ onCompletion = { regionId, result ->
+ // remove progress entry on completion
+ downloadProgress = downloadProgress - regionId
+ when {
+ result.isSuccess -> {
+ val tileRegion: TileRegion? = result.getOrNull()
+ Log.i(TAG, "Downloaded ${region.name}: ${tileRegion?.completedResourceSize}")
+ }
+ result.isFailure -> {
+ Log.e(TAG, "Failed to download ${region.name}: ${result.exceptionOrNull()}")
+ }
+ }
+ }
+ )
+ }
+
+ fun clearAllRegions() {
+ OfflineRegionManager.clearAllRegions {
+ downloadingRegions = emptySet()
+ downloadProgress = emptyMap()
+ refreshTrigger = !refreshTrigger
+ }
+ }
+}
diff --git a/android-offline-maps/app/src/main/java/com/example/mapbox_offline/ui/theme/Color.kt b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/ui/theme/Color.kt
new file mode 100644
index 0000000..ebf7974
--- /dev/null
+++ b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/ui/theme/Color.kt
@@ -0,0 +1,11 @@
+package com.example.mapbox_offline.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+val Purple80 = Color(0xFFD0BCFF)
+val PurpleGrey80 = Color(0xFFCCC2DC)
+val Pink80 = Color(0xFFEFB8C8)
+
+val Purple40 = Color(0xFF6650a4)
+val PurpleGrey40 = Color(0xFF625b71)
+val Pink40 = Color(0xFF7D5260)
\ No newline at end of file
diff --git a/android-offline-maps/app/src/main/java/com/example/mapbox_offline/ui/theme/Theme.kt b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/ui/theme/Theme.kt
new file mode 100644
index 0000000..a32f3ea
--- /dev/null
+++ b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/ui/theme/Theme.kt
@@ -0,0 +1,49 @@
+package com.example.mapbox_offline.ui.theme
+
+import android.app.Activity
+import android.os.Build
+import androidx.compose.foundation.isSystemInDarkTheme
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.dynamicDarkColorScheme
+import androidx.compose.material3.dynamicLightColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.platform.LocalContext
+
+private val DarkColorScheme = darkColorScheme(
+ primary = Purple80,
+ secondary = PurpleGrey80,
+ tertiary = Pink80
+)
+
+private val LightColorScheme = lightColorScheme(
+ primary = Purple40,
+ secondary = PurpleGrey40,
+ tertiary = Pink40
+
+)
+
+@Composable
+fun MapboxofflineTheme(
+ darkTheme: Boolean = isSystemInDarkTheme(),
+ // Dynamic color is available on Android 12+
+ dynamicColor: Boolean = true,
+ content: @Composable () -> Unit
+) {
+ val colorScheme = when {
+ dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> {
+ val context = LocalContext.current
+ if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context)
+ }
+
+ darkTheme -> DarkColorScheme
+ else -> LightColorScheme
+ }
+
+ MaterialTheme(
+ colorScheme = colorScheme,
+ typography = Typography,
+ content = content
+ )
+}
\ No newline at end of file
diff --git a/android-offline-maps/app/src/main/java/com/example/mapbox_offline/ui/theme/Type.kt b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/ui/theme/Type.kt
new file mode 100644
index 0000000..1f64abb
--- /dev/null
+++ b/android-offline-maps/app/src/main/java/com/example/mapbox_offline/ui/theme/Type.kt
@@ -0,0 +1,18 @@
+package com.example.mapbox_offline.ui.theme
+
+import androidx.compose.material3.Typography
+import androidx.compose.ui.text.TextStyle
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.sp
+
+// Set of Material typography styles to start with
+val Typography = Typography(
+ bodyLarge = TextStyle(
+ fontFamily = FontFamily.Default,
+ fontWeight = FontWeight.Normal,
+ fontSize = 16.sp,
+ lineHeight = 24.sp,
+ letterSpacing = 0.5.sp
+ )
+)
\ No newline at end of file
diff --git a/android-offline-maps/app/src/main/res/drawable/ic_launcher_background.xml b/android-offline-maps/app/src/main/res/drawable/ic_launcher_background.xml
new file mode 100644
index 0000000..07d5da9
--- /dev/null
+++ b/android-offline-maps/app/src/main/res/drawable/ic_launcher_background.xml
@@ -0,0 +1,170 @@
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diff --git a/android-offline-maps/app/src/main/res/drawable/ic_launcher_foreground.xml b/android-offline-maps/app/src/main/res/drawable/ic_launcher_foreground.xml
new file mode 100644
index 0000000..2b068d1
--- /dev/null
+++ b/android-offline-maps/app/src/main/res/drawable/ic_launcher_foreground.xml
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