diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/main/AndroidManifest.xml b/platform/android/MapboxGLAndroidSDKTestApp/src/main/AndroidManifest.xml
index 0c5aa1551ec..326acabdb31 100644
--- a/platform/android/MapboxGLAndroidSDKTestApp/src/main/AndroidManifest.xml
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/main/AndroidManifest.xml
@@ -942,6 +942,18 @@
android:name="android.support.PARENT_ACTIVITY"
android:value=".activity.FeatureOverviewActivity" />
+
+
+
+
+
+
+ mapboxMap.cameraPosition = CameraPosition.Builder()
+ .target(LatLng(22.928207, 15.011543))
+ .zoom(10.0)
+ .build()
+
+ source = GeoJsonSource(SOURCE_ID, TurfTransformation.circle(
+ Point.fromLngLat(0.0, 0.0), 9000.0, 10, "meters")
+ )
+
+ stepsBar.setOnSeekBarChangeListener(this)
+ radiusBar.setOnSeekBarChangeListener(this)
+
+ mapboxMap.setStyle(Style.Builder()
+ .fromUrl(Style.SATELLITE_STREETS)
+ .withLayer(FillLayer(LAYER_ID, SOURCE_ID).withProperties(fillColor(Color.RED)))
+ .withSource(source)
+ )
+ }
+ }
+
+ override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
+ seekBar?.let {
+ if (it.id == stepsBar.id) {
+ steps = progress
+ } else {
+ radius = progress.toDouble()
+ }
+
+ source.setGeoJson(TurfTransformation.circle(
+ Point.fromLngLat(0.0, 0.0), radius, steps, "meters")
+ )
+ }
+ }
+
+ override fun onStartTrackingTouch(seekBar: SeekBar?) {
+ // no-op
+ }
+
+ override fun onStopTrackingTouch(seekBar: SeekBar?) {
+ // no-op
+ }
+
+ override fun onStart() {
+ super.onStart()
+ mapView.onStart()
+ }
+
+ override fun onResume() {
+ super.onResume()
+ mapView.onResume()
+ }
+
+ override fun onPause() {
+ super.onPause()
+ mapView.onPause()
+ }
+
+ override fun onStop() {
+ super.onStop()
+ mapView.onStop()
+ }
+
+ override fun onLowMemory() {
+ super.onLowMemory()
+ mapView.onLowMemory()
+ }
+
+ override fun onDestroy() {
+ super.onDestroy()
+ mapView.onDestroy()
+ }
+
+ override fun onSaveInstanceState(outState: Bundle?) {
+ super.onSaveInstanceState(outState)
+ outState?.let {
+ mapView.onSaveInstanceState(it)
+ }
+ }
+}
\ No newline at end of file
diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/layout/activity_physical_circle.xml b/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/layout/activity_physical_circle.xml
new file mode 100644
index 00000000000..83728b46a97
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/layout/activity_physical_circle.xml
@@ -0,0 +1,32 @@
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/categories.xml b/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/categories.xml
index 2c34a593278..94c805f3576 100644
--- a/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/categories.xml
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/categories.xml
@@ -17,4 +17,5 @@
Location
_Integration
Telemetry
+ Turf
\ No newline at end of file
diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/descriptions.xml b/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/descriptions.xml
index 778805b3b36..cc2577fb5eb 100644
--- a/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/descriptions.xml
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/descriptions.xml
@@ -82,4 +82,5 @@
Show a GLSurfaceView MapView as a recyclerView item
Show a MapView inside a viewpager inside a recyclerView
Show the use PerformanceEvent for performance measurements
+ Use TurfTransformation#circle() to show a Cirlce expressed in physical units
diff --git a/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/titles.xml b/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/titles.xml
index 12c82bf21ae..e5f7381918b 100644
--- a/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/titles.xml
+++ b/platform/android/MapboxGLAndroidSDKTestApp/src/main/res/values/titles.xml
@@ -82,4 +82,5 @@
RecyclerView GLSurfaceView
Nested ViewPager
Performance Measurement
+ Physical Unit Circle
\ No newline at end of file