I am trying to create a pagiewView in flutter that shows preview of the next page and the a preview of the next page as is in the attached image. How can I achieve that?
I finally knew how to achieve this with pageView
PageView(
children: items,
controller: PageController(
viewportFraction: 0.8,
initialPage: 0,
)
)
Related
I've been wondering how to implement a really cool little feature I saw in the Algorand app. I've attached a picture to help illustrate what I mean.
The middle button of the navigation bar at the bottom animates the Send and Receive button onto the view, and then changes it's icon to a cross. These buttons persist when you navigate to other views through the other 4 bottom navigation bar items. And when you click the middle cross button, they disappear.
I tried for a bit to implement this in Flutter. My best attempt was creating my own Bottom Navigation Bar widget for my scaffold, containing the bottom icons and a couple buttons on top, but this seemed really janky. I'm not asking for specific code examples of how to get this done, just rather a point in the right direction of how to do this kind of thing.
Speaking of specific code, their code is actually open source, and the code for the bottom nav bar is here
https://github.com/algorand/algorand-wallet/blob/master/ios/Classes/ViewControllers/Core/Container/TabBar/TabBarController.swift
I've been reading it but unfortunately my Swift is not all that great, working through it line by line. I can make a custom bottom nav bar with Container and Row, and then figure out the onTap behaviours, but it's the presenting two buttons above it that's really blocking me.
Scaffold’s floatingActionButton parameter is exactly what you’re looking for.
Need two buttons? No problem, it doesn’t have to be a FloatingActionButton, it can be any widget, including a Row.
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
FloatingActionButton.extended(
icon: Icon(Icons.arrow_upward),
label: Text('Send'),
onPressed: (){},
backgroundColor: Colors.redAccent),
Padding(padding: EdgeInsets.symmetric(horizontal: 8)),
FloatingActionButton.extended(
icon: Icon(Icons.arrow_downward),
label: Text('Request'),
onPressed: (){},
backgroundColor: Colors.teal),
]
),
Then to trigger it with a button press, just make it conditional:
bool appear = false;
...
floatingActionButton: appear ? Row(...) : null
Then you can make it appear or disappear by changing the boolean in your button’s onPressed (and don’t forget to call setState).
I am having fours pages with no tab bars If I want to click mobile phone back button to go the previous page. I didn't any solution to do it.
wrap your Scaffold with WillPopScop, onWillPop property will help you controll it as you like.
return new WillPopScope(
onWillPop: (){
Navigator.pushReplacement(context,
new MaterialPageRoute(builder: (context) => MyHomePage()));
},
child : Scaffold( child : Center(child : Text('welcome to page 2 press back button to return to page 1 ') ),);
i think flutter mange default when user press back button remove screen.then you can try this..
Navigator.pop(context);
more information refer this link..
https://medium.com/flutterpub/my-flutter-path-003-navigator-ad1472ff4e1a
I want to hold the camera screen after clicking the image in the flutter.
Now I am holding the image using container, but its displaying mirror image.
Container(
child:
Center(child:
Image.file(new File(imagePath)))),
return new AspectRatio(
aspectRatio: controller.value.aspectRatio,
child: new CameraPreview(controller),
);
Add a Stack view with preview controller and list to display the captured images list and capture button to capture image.
Add the path to list, use the same list to populate in list view. after taking the no of pictures you need to have a submit button to pop the view.
here is the sample code camera_view_sample_code
I want animate widgets like the below gif
But whats happening is like the below gif
I just added a color to the container to get a sense of the frame of parent container
How can we make the inner widgets to clip when moving out of parent widget?
I am using Transform to animate like projects.
Please let me know if any more info is required.
If you want your red container to clip overflow, you have to wrap it into a ClipRect.
new ClipRect(
child: new Container(color: Colors.red, child: myAnimationThing),
),
Is there any way to include a Floating Action Button in a screen consisting of a CustomScrollView with a SliverAppBar and a SliverList?
I want to be able to have the default behaviour of a sliver list with a FAB fixed on the screen.
Is it possible?
You can still use the Scaffold when you're using the SliverAppBar such as:
new Scaffold(
body: new CustomScrollView(
slivers: <Widget>[
new SliverAppBar(...),
...
],
),
floatingActionButton: new FloatingActionButton(...),
);
Otherwise, you can generally use a Stack above the CustomScrollView and the FloatingActionButton (in a Positioned) as well.