[android] SurfaceView compatible snapshot api

[android] #5587 - snapshot API on surface view, create Bitmap with a ByteBuffer

[android] #5587 - write bitmap to external storage

PreMultipliedImage approach

callback implemented

clean up code

introduce bitmap reuse

cleanup

renaming surfaceContent to bitmap

1 files changed, 3 insertions, 0 deletions

diff --git a/platform/android/src/native_map_view.hpp b/platform/android/src/native_map_view.hpp
index 40cb012b0b..9b5af76dfe 100755
--- a/platform/android/src/native_map_view.hpp
+++ b/platform/android/src/native_map_view.hpp
@@ -49,6 +49,8 @@ public:
     mbgl::EdgeInsets getInsets() { return insets;}
     void setInsets(mbgl::EdgeInsets insets_);
 
+    void scheduleTakeSnapshot();
+
 private:
     EGLConfig chooseConfig(const EGLConfig configs[], EGLint numConfigs);
 
@@ -79,6 +81,7 @@ private:
     bool firstTime = false;
     bool fpsEnabled = false;
     bool sizeChanged = false;
+    bool snapshot = false;
     double fps = 0.0;
 
     int width = 0;