1 files changed, 67 insertions, 0 deletions
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/CameraChangeDispatcher.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/CameraChangeDispatcher.java
new file mode 100644
index 0000000000..bd028aecb6
--- /dev/null
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/maps/CameraChangeDispatcher.java
@@ -0,0 +1,67 @@
+package com.mapbox.mapboxsdk.maps;
+
+import static com.mapbox.mapboxsdk.maps.MapboxMap.OnCameraIdleListener;
+import static com.mapbox.mapboxsdk.maps.MapboxMap.OnCameraMoveCanceledListener;
+import static com.mapbox.mapboxsdk.maps.MapboxMap.OnCameraMoveStartedListener;
+import static com.mapbox.mapboxsdk.maps.MapboxMap.OnCameraMoveListener;
+
+class CameraChangeDispatcher implements MapboxMap.OnCameraMoveStartedListener, MapboxMap.OnCameraMoveListener,
+  MapboxMap.OnCameraMoveCanceledListener, OnCameraIdleListener {
+
+  private boolean idle = true;
+
+  private OnCameraMoveStartedListener onCameraMoveStartedListener;
+  private OnCameraMoveCanceledListener onCameraMoveCanceledListener;
+  private OnCameraMoveListener onCameraMoveListener;
+  private OnCameraIdleListener onCameraIdleListener;
+
+  void setOnCameraMoveStartedListener(OnCameraMoveStartedListener onCameraMoveStartedListener) {
+    this.onCameraMoveStartedListener = onCameraMoveStartedListener;
+  }
+
+  void setOnCameraMoveCanceledListener(OnCameraMoveCanceledListener onCameraMoveCanceledListener) {
+    this.onCameraMoveCanceledListener = onCameraMoveCanceledListener;
+  }
+
+  void setOnCameraMoveListener(OnCameraMoveListener onCameraMoveListener) {
+    this.onCameraMoveListener = onCameraMoveListener;
+  }
+
+  void setOnCameraIdleListener(OnCameraIdleListener onCameraIdleListener) {
+    this.onCameraIdleListener = onCameraIdleListener;
+  }
+
+  @Override
+  public void onCameraMoveStarted(int reason) {
+    if (!idle) {
+      return;
+    }
+
+    idle = false;
+    if (onCameraMoveStartedListener != null) {
+      onCameraMoveStartedListener.onCameraMoveStarted(reason);
+    }
+  }
+
+  @Override
+  public void onCameraMove() {
+    if (onCameraMoveListener != null && !idle) {
+      onCameraMoveListener.onCameraMove();
+    }
+  }
+
+  @Override
+  public void onCameraMoveCanceled() {
+    if (onCameraMoveCanceledListener != null && !idle) {
+      onCameraMoveCanceledListener.onCameraMoveCanceled();
+    }
+  }
+
+  @Override
+  public void onCameraIdle() {
+    if (onCameraIdleListener != null && !idle) {
+      idle = true;
+      onCameraIdleListener.onCameraIdle();
+    }
+  }
+}