1 files changed, 48 insertions, 0 deletions
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/location/LocationComponentPositionManager.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/location/LocationComponentPositionManager.java
new file mode 100644
index 0000000000..f2e4d0bb41
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/location/LocationComponentPositionManager.java
@@ -0,0 +1,48 @@
+package com.mapbox.mapboxsdk.location;
+
+import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
+
+import com.mapbox.mapboxsdk.maps.Style;
+import com.mapbox.mapboxsdk.style.layers.Layer;
+
+class LocationComponentPositionManager {
+
+  @NonNull
+  private final Style style;
+
+  @Nullable
+  private String layerAbove;
+
+  @Nullable
+  private String layerBelow;
+
+  LocationComponentPositionManager(@NonNull Style style, @Nullable String layerAbove, @Nullable String layerBelow) {
+    this.style = style;
+    this.layerAbove = layerAbove;
+    this.layerBelow = layerBelow;
+  }
+
+  /**
+   * Returns true whenever layer above/below configuration has changed and requires re-layout.
+   */
+  boolean update(@Nullable String layerAbove, @Nullable String layerBelow) {
+    boolean requiresUpdate =
+      !(this.layerAbove == layerAbove || (this.layerAbove != null && this.layerAbove.equals(layerAbove)))
+        || !(this.layerBelow == layerBelow || (this.layerBelow != null && this.layerBelow.equals(layerBelow)));
+
+    this.layerAbove = layerAbove;
+    this.layerBelow = layerBelow;
+    return requiresUpdate;
+  }
+
+  void addLayerToMap(@NonNull Layer layer) {
+    if (layerAbove != null) {
+      style.addLayerAbove(layer, layerAbove);
+    } else if (layerBelow != null) {
+      style.addLayerBelow(layer, layerBelow);
+    } else {
+      style.addLayer(layer);
+    }
+  }
+}