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.
Related
Please see the photos attached for the feature, or simply head to https://www.chrislorenzomusic.com and resize the window until you see the dropdown menu in top right corner appears and click on the menu to see the effect.
I'm not sure what this effect or feature is called, but was wondering what it's called and if it was possible to make something similar in flutter?
Before resizing the window
After resizing window the menu at top right corner appears
When clicking on the menu
When an app or widget behaves differently depending on the screen size or orientation it is considered responsive or has a responsive layout.
https://docs.flutter.dev/development/ui/layout/adaptive-responsive
The Menu itself can be created using a Scaffold with an AppBar and a Drawer. You can configure the AppBar to have the menu icon or the links depending on the size using LayoutBuilder and MediaQuery.of.
AppBar
https://material.io/components/app-bars-top
Drawer
https://material.io/components/navigation-drawer
We have a screen with listItems. Each item can be longPressed to open a popupMenu. Now requirement is to blur the screen except the selected listItem on long press. (check screenshot)
How can this be achieved?
I think you are looking for something like this one.
https://pub.dev/packages/focused_menu
Using this library you can show the popup menu by making the background blurry without the tapped item.
I have a basic layout where I am using a stack widget to hold my other widgets.. I have a side toolbar, inside that I have a pen menu on click of which a popup should appear. When i am clicking the pen menu an alert dialog appears but not in the expected place, what i mean is...
I am expecting a dialog like the one in the below image. Do I need to use any plugin to create a dialog like this with a chevron mark?enter image description here
As you are using Alert dialog, it will by default be aligned in center of your screen. In order to achieve what you are trying to, I would suggest using a plugin like this.
I am building a app activity which has an app bar which has an icon in the center of the appbar and some text. I want to be able to show the text below t the icon with some transition inside the appbar on click of the icon mentioned before and make it disappear it is already showing.
I tried using sliver but I need the transition to happen with click event not scroll up and down event.
I'm asking how to disable Overlays to move when a Scaffold.of(context).showSnackBar is called like on my video below.
The same thing is happening when the keyboard appear. Sometime the blue floattingButton (+) don't come back to it's original position :-(
Thx in advance.
Problem animation
The FloatingActionButton going up when the Scaffold is displayed is something common to all default implementations.
Give a look to the "Bootom app bar" demo in the Gallery app. Press on the search button and you will see it coming up. Or just add a Scaffold to the app that is built with flutter create command.
This happens because of the way the FAB button is placed on the screen and the effect of displaying the Snackbar by the Scaffold.
The FAB button is displayed at the bottom of the content area of the Scaffold content. When the content area is shrinked to include the BottomAppBar, the FAB goes up with it. It has nothing to do with Overlay.
You have two options:
Either you create your own versión of the FAB which is not
controlled by the Scaffold.
Or you hack the Scaffold so the size of the SnackBar is not taken
into account.
For this second option you can try the following:
Go to the file /lib/src/material/scaffold.dart in your flutter installation and look for the line with the code snackBarSize: snackBarSize, inside the _ScaffoldLayout class.
Replace it with snackBarSize: Size(0.0, 0.0),
You will see that the FAB stays in its place.