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UIViewController+FlutterScreenAndSceneIfLoaded.mm
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #import "flutter/shell/platform/darwin/ios/framework/Source/UIViewController+FlutterScreenAndSceneIfLoaded.h"
6
7 #include "flutter/fml/logging.h"
8 #import "flutter/shell/platform/darwin/common/framework/Headers/FlutterMacros.h"
9
10 FLUTTER_ASSERT_ARC
11
12 @implementation UIViewController (FlutterScreenAndSceneIfLoaded)
13
14 - (UIWindowScene*)flutterWindowSceneIfViewLoaded {
15 if (self.viewIfLoaded == nil) {
16 FML_LOG(WARNING) << "Trying to access the window scene before the view is loaded.";
17 return nil;
18 }
19 return self.viewIfLoaded.window.windowScene;
20 }
21
22 - (UIScreen*)flutterScreenIfViewLoaded {
23 if (@available(iOS 13.0, *)) {
24 if (self.viewIfLoaded == nil) {
25 FML_LOG(WARNING) << "Trying to access the screen before the view is loaded.";
26 return nil;
27 }
28 return [self flutterWindowSceneIfViewLoaded].screen;
29 }
30 return UIScreen.mainScreen;
31 }
32
33 @end
FlutterMacros.h
UIViewController(FlutterScreenAndSceneIfLoaded)
Definition: UIViewController+FlutterScreenAndSceneIfLoaded.h:10
UIViewController+FlutterScreenAndSceneIfLoaded.h
FLUTTER_ASSERT_ARC
Definition: FlutterChannelKeyResponder.mm:13