WebJul 10, 2024 · Do I need to get MediaQuery.of(context).size.width with every widget or is there a way to get it once, perhaps in main.dart, store it and have it available in every file and every class?Preferably without having to pass it through either. At the end of the day, it is not a value that will ever change so hopefully can get it just once. WebMar 14, 2024 · orientation = MediaQuery.of (context).orientation; screenWidth = MediaQuery.of (context).size.width; screenHeight = MediaQuery.of (context).size.height; I made a new topic because I found out that this part was actually causing the error, when I remove it everything works fine.
Flutter 性能优化:打造高性能 widget
WebAug 23, 2024 · 2. It is because calling notifyListeners will rebuild the build method (The one from which you have called Provider.of... ), which will create a loop. (The build method call the future and notifyListener will rebuild the build method, and this process continues for ever). To prevent this, provide another argument to the of method: listen: false. WebJun 12, 2024 · In order to determine the Orientation of the screen, we can use the OrientationBuilder Widget. The OrientationBuilder will determine the current Orientation and rebuild when the Orientation changes. new OrientationBuilder ( builder: (context, orientation) { return new GridView.count ( // Create a grid with 2 columns in portrait … cheapest silver nose ring
NoSuchMethodError:The method
WebMar 17, 2024 · Đây là lý do tại sao Flutter làm việc rất hiệu quả. Element Tree không cần rebuild khi phương thức build(){…} được call. Chỉ Widget Tree được rebuild và sau đó Element Tree chỉ cập nhật tham chiếu của nó trỏ đến Widget Tree mới. Sau đó, nó sẽ kiểm tra xem thông tin mới của các ... WebJul 4, 2024 · the only reason why your widgets got rebuilds after keyboard pop up. is that one or more of your widgets size depends on MediaQuery. you can try to ge your screen size from LayoutBuilder as an alternative for MediaQuery. After hours of testing different solutions and debugging this is what I needed, thanks! WebApr 10, 2024 · the setstate changes all of the items in flutter. I have a problem that my code is working fine when I tap on one product button, but when I tap on the other one it mixes up, So basically when I tap on the one product it changes the button as I want but when I tap another one it changes the state of first one, this all mix up is happening. cheapest silver online