Merge pull request livecode#5880 from runrevmark/bugfix-9992

livecodepanos · web-flow · commit 2dc2938bba80 · 2017-08-31T17:35:42.000+01:00
[[ Bug 9992 ]] Improve export/import snapshot from screen on iOS7+
diff --git a/docs/notes/bugfix-9992.md b/docs/notes/bugfix-9992.md
@@ -0,0 +1,5 @@
+# Improve export/import snapshot from screen on iOS
+
+The from screen form of export/import snapshot has been changed
+to use a different API on iOS7+, which allows a greater variety
+of native layers to be captured.
diff --git a/engine/src/mbliphonedc.mm b/engine/src/mbliphonedc.mm
@@ -617,8 +617,19 @@ static void MCScreenDCDoSnapshot(void *p_env)
 										  -[window bounds].size.height * [[window layer] anchorPoint].y);
 					
 					// Render the layer hierarchy to the current context
-					[[window layer] renderInContext:t_img_context];
-					
+                    if ([window respondsToSelector: @selector(drawViewHierarchyInRect:afterScreenUpdates:)])
+                    {
+                        // This method is supported in iOS7+ and will capture many
+                        // native view's content.
+                        UIGraphicsPushContext(t_img_context);
+                        [window drawViewHierarchyInRect:[window bounds] afterScreenUpdates:YES];
+                        UIGraphicsPopContext();
+                    }
+                    else
+                    {
+                        [[window layer] renderInContext:t_img_context];
+					}
+                    
 					// Restore the context
 					CGContextRestoreGState(t_img_context);
 				}
