i am using overlay in flutter and if the overlay pop up i want to prevent the user from clicking the buttons behind it like this
before click
after click
try to use ignorePointer like this Ignore pointer demo
or you can use Boolean like isShow = true, when alert popup make it isShow =false
Related
On using onWillPop the flutter app bottomScreen closes for two conditions.
On tapping outside bottom sheet.
On pressing mobile back button.
How to make first condition disable i.e. bottom sheet should only close on clicking mobile back button.
Use isDismissible property of showModalBottomSheet. It works only for outside tap.
showModalBottomSheet(
isDismissible: false,
////other
)
I want to dim (gray) the background when the bottom sheet opens, like a modal bottom sheet, but still be able to interact with the rest of the UI while the bottom sheet is open - like a regular bottom sheet.
Any ideas?
Even though, I won't recommend creating such an effect as it is not very understandable from the user perspective.
You can achieve this by using the IgnorePointer, Stack and setState((){})
1- Add a field bool showOverlay = false;
2- Align some Container to with Alignment.bottom to represent ur bottom sheet
3- Put some overlay Container with some background color and opacity and wrap it with IgnorePointer(ignoring: true, ...) which will let it not interfere with your widgets below.
I think you got it from here.
I want to show my own page on dropdown button tap, then item selected on page should be set as dropdown button value.
So basically, I need DropdownButton without any popup on tap. When I use onTap still default popup will be shown, how to prevent that?
why you don't use a button instead? or you can try to create an Inkwell put a container on its child and make it look like a button and write your code inside Inkwell OnTap(){}
1- Pass null to items parameter to disable the button.
2- You'll notice icon's color will be grey with disabled button, you can change it by setting color of the icon you send to icon parameter or send color directly to iconDisabledColor parameter.
3- You'll not use value parameter, instead you'll just use hint to show both your hint and your value. and update it using your state management after you pick new value from your own page.
4- Wrap your DropdownButton with GestureDetector or InkWell to show your own page when you tap on the button.
5- If you want to customize your DropdownButton shape, size and more. You can try my new package DropdownButton2. It's simple, easy, based on Flutter's core DropdownButton and have lots of features.
I have a drawer in my
app. When I long tap it, "Open navigator menu" pops up. How can I change this? I already tried changing somethings in drawer.dart etc. but it didn't work.
it depends which action you use.
if you want different tap behaviour you can user GestureDetector
with Default drawer class, use Scaffold.of(context).openDrawer(); to open drawer with text in GestureDetector.
During inspecting scaffold Flutter project (without any modification) with Flutter Inspector in some cases of toggling widgets in left bottom corner magnifying glass button appear.
Where is it come from and what is its purpose?
Attached screenshots show that this button exists only on Render Tree tab.
This button appears only after you turned on "Select Widget Mode" in Flutter Inspector and selected a first widget to inspect. In order to inspect another widget you first need to tap the magnifier FAB.