[android] update viewport size when framebuffer size changed

2 files changed, 7 insertions, 0 deletions

diff --git a/platform/android/src/native_map_view.cpp b/platform/android/src/native_map_view.cpp
index 65e39b198e..c1283693d0 100755
--- a/platform/android/src/native_map_view.cpp
+++ b/platform/android/src/native_map_view.cpp
@@ -197,6 +197,11 @@ void NativeMapView::invalidate() {
 void NativeMapView::render() {
     activate();
 
+    if (framebufferSizeChanged) {
+        getContext().viewport = { 0, 0, getFramebufferSize() };
+        framebufferSizeChanged = false;
+    }
+
     updateViewBinding();
     map->render(*this);
 
@@ -729,6 +734,7 @@ void NativeMapView::resizeView(int w, int h) {
 void NativeMapView::resizeFramebuffer(int w, int h) {
     fbWidth = w;
     fbHeight = h;
+    framebufferSizeChanged = true;
     invalidate();
 }
 
diff --git a/platform/android/src/native_map_view.hpp b/platform/android/src/native_map_view.hpp
index 09619802ce..18f9ebc144 100755
--- a/platform/android/src/native_map_view.hpp
+++ b/platform/android/src/native_map_view.hpp
@@ -90,6 +90,7 @@ private:
     int height = 0;
     int fbWidth = 0;
     int fbHeight = 0;
+    bool framebufferSizeChanged = true;
 
     int availableProcessors = 0;
     size_t totalMemory = 0;