From 2ee52915fe4d2889ddac217678d40dca9beae176 Mon Sep 17 00:00:00 2001
From: John Firebaugh <john.firebaugh@gmail.com>
Date: Wed, 16 Dec 2015 11:13:59 -0800
Subject: [PATCH] [ios, android] Add a method to invalidate custom layers,
 forcing a repaint

---
 include/mbgl/ios/MGLMapView+MGLCustomStyleLayerAdditions.h   | 2 ++
 .../src/main/java/com/mapbox/mapboxsdk/views/MapView.java    | 5 +++++
 platform/ios/MGLMapView.mm                                   | 5 +++++
 3 files changed, 12 insertions(+)

diff --git a/include/mbgl/ios/MGLMapView+MGLCustomStyleLayerAdditions.h b/include/mbgl/ios/MGLMapView+MGLCustomStyleLayerAdditions.h
index afb21f9b6..3c74b0296 100644
--- a/include/mbgl/ios/MGLMapView+MGLCustomStyleLayerAdditions.h
+++ b/include/mbgl/ios/MGLMapView+MGLCustomStyleLayerAdditions.h
@@ -20,6 +20,8 @@ typedef void (^MGLCustomStyleLayerCompletionHandler)(void);
 
 - (void)insertCustomStyleLayerWithIdentifier:(NSString *)identifier preparationHandler:(MGLCustomStyleLayerPreparationHandler)preparation drawingHandler:(MGLCustomStyleLayerDrawingHandler)drawing completionHandler:(MGLCustomStyleLayerCompletionHandler)completion belowStyleLayerWithIdentifier:(nullable NSString *)otherIdentifier;
 
+- (void)invalidateCustomStyleLayers;
+
 @end
 
 NS_ASSUME_NONNULL_END
diff --git a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/views/MapView.java b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/views/MapView.java
index f169e98b8..e36a08aed 100644
--- a/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/views/MapView.java
+++ b/platform/android/MapboxGLAndroidSDK/src/main/java/com/mapbox/mapboxsdk/views/MapView.java
@@ -3792,6 +3792,11 @@ public final class MapView extends FrameLayout {
         mNativeMapView.addCustomLayer(customLayer, before);
     }
 
+    @UiThread
+    public void invalidateCustomLayers() {
+        mNativeMapView.update();
+    }
+
     private void setWidgetGravity(@NonNull final View view, int gravity) {
         LayoutParams layoutParams = (LayoutParams) view.getLayoutParams();
         layoutParams.gravity = gravity;
diff --git a/platform/ios/MGLMapView.mm b/platform/ios/MGLMapView.mm
index e9657f561..ab18c1b4c 100644
--- a/platform/ios/MGLMapView.mm
+++ b/platform/ios/MGLMapView.mm
@@ -3675,4 +3675,9 @@ void MGLFinishCustomStyleLayer(void *context)
                              context, otherIdentifier.UTF8String);
 }
 
+- (void)invalidateCustomStyleLayers
+{
+    _mbglMap->update(mbgl::Update::Repaint);
+}
+
 @end