flutter - 如何关闭 Navigator.of(context).overlay

Question

用我的代码:

final CustomOverlay customOverlay = new CustomOverlay(); 
Navigator.of(context).overlay.insert(OverlayEntry(builder: (BuildContext context) { return customOverlay; }));

但是当我想关闭那个 customOverlay 但我不知道如何......

我尝试了Navigator.of(context).overlay.dispose();

但这不起作用......

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! Doctor found issues in 1 category.
Macbooks-MacBook-Pro:TweensTalent-Front-end daniquedejong$ flutter doctor -v
[✓] Flutter (Channel stable, v1.0.0, on Mac OS X 10.13.6 17G4015, locale en-NL)
• Flutter version 1.0.0 at /Users/daniquedejong/tools/flutter
• Framework revision [5391447](https://github.com/flutter/flutter/commit/5391447fae6209bb21a89e6a5a6583cac1af9b4b) (3 months ago), 2018-11-29 19:41:26 -0800
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• Xcode 10.1, Build version 10B61
✗ Verify that all connected devices have been paired with this computer in Xcode.
If all devices have been paired, libimobiledevice and ideviceinstaller may require updating.
To update with Brew, run:
brew update
brew uninstall --ignore-dependencies libimobiledevice
brew uninstall --ignore-dependencies usbmuxd
brew install --HEAD usbmuxd
brew unlink usbmuxd
brew link usbmuxd
brew install --HEAD libimobiledevice
brew install ideviceinstaller
• ios-deploy 2.0.0
• CocoaPods version 1.5.3

[✓] Android Studio (version 3.3)
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Answer 1

使用 remove 从您的 OverlayEntry

final customOverlay = new CustomOverlay(); 
final overlayEntry = OverlayEntry(builder: (BuildContext context) { return customOverlay; })); 
overlayEntry.remove();