App screen is covered with an image, there is a bottom app bar which I need to see the background image as transparent.
I am using svg icons for bottom navigationbar icons. The same screen top appbar is transparent but bottom app bar showing white color.
BottomAppBar _buildBottomNavigationBar() {
return BottomAppBar(
color: Colors.transparent,
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
IconButton(
onPressed: () {},
icon: SvgPicture.asset(
'assets/icons/home.svg',
color: Colors.black,
),
//color: Colors.black,
),
IconButton(
onPressed: () {},
icon: SvgPicture.asset('assets/icons/location.svg'),
color: Colors.black,
),
IconButton(
onPressed: () {},
icon: SvgPicture.asset('assets/icons/fish.svg'),
color: Colors.black,
),
IconButton(
onPressed: () {},
icon: SvgPicture.asset('assets/icons/menu.svg'),
color: Colors.black,
),
],
),
);
}
try this:
Scaffold(
extendBody: true,
Try to set elevation
set elevation to zero:
BottomAppBar(elevation: 0)
Example
BottomAppBar _buildBottomNavigationBar() {
return BottomAppBar(
elevation: 0,
color: Colors.transparent,
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
IconButton(
onPressed: () {},
icon: SvgPicture.asset(
'assets/icons/home.svg',
color: Colors.black,
),
//color: Colors.black,
),
IconButton(
onPressed: () {},
icon: SvgPicture.asset('assets/icons/location.svg'),
color: Colors.black,
),
IconButton(
onPressed: () {},
icon: SvgPicture.asset('assets/icons/fish.svg'),
color: Colors.black,
),
IconButton(
onPressed: () {},
icon: SvgPicture.asset('assets/icons/menu.svg'),
color: Colors.black,
),
],
),
);
}
Explain
elevation make a shadow in widgets
Related
I want a docked bottom navigation bar in flutter where the item in the center is uplifted and fixed,
any idea how can I do that
this is the output that I want and I don't have any idea I can I do that
try adding floating action button in scaffold
Scaffold(
bottomNavigationBar: BottomAppBar(
child: Row(
children: [
IconButton(icon: Icon(Icons.menu), onPressed: () {}),
Spacer(),
IconButton(icon: Icon(Icons.search), onPressed: () {}),
IconButton(icon: Icon(Icons.more_vert), onPressed: () {}),
],
),
),
floatingActionButton:
FloatingActionButton(child: Icon(Icons.add), onPressed: () {}),
floatingActionButtonLocation: FloatingActionButtonLocation.centerDocked,
),
See I have two options for you here (potentially three):
1. Create a mix of bottom-navigation-bar and floating-action-button
floatingActionButton: FloatingActionButton(
onPressed: () {},
shape:
RoundedRectangleBorder(borderRadius: BorderRadius.circular(15)),
child: Icon(Icons.video_call),
),
floatingActionButtonLocation: FloatingActionButtonLocation.centerDocked,
bottomNavigationBar: BottomAppBar(
color: Colors.redAccent,
notchMargin: 5,
child: Row(
mainAxisSize: MainAxisSize.max,
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: <Widget>[
IconButton(
icon: Icon(
Icons.menu,
color: Colors.white,
),
onPressed: () {},
),
IconButton(
icon: Icon(
Icons.search,
color: Colors.white,
),
onPressed: () {},
),
IconButton(
icon: Icon(
Icons.print,
color: Colors.white,
),
onPressed: () {},
),
IconButton(
icon: Icon(
Icons.people,
color: Colors.white,
),
onPressed: () {},
),
],
),
),
pseudo second:
Create a notch in the bottom-navigation-bar :
bottomNavigationBar: BottomAppBar(
shape: shape: AutomaticNotchedShape(
RoundedRectangleBorder(
borderRadius: BorderRadius.vertical(
top: Radius.circular(15),
),
),
RoundedRectangleBorder(
borderRadius: BorderRadius.all(Radius.circular(10)),
),
), // by adding this line in the above code
color: Colors.redAccent,
notchMargin: 5,
child: Row(
2. Use Stack BottomNavBar Combo :
Stack(
children: [
Align(
alignment: Alignment.bottomCenter,
child: BottomNavigationBar(
backgroundColor: Colors.transparent,
items: const [
BottomNavigationBarItem(
icon: Icon(
Icons.home,
color: Colors.white,
),
label: 'a',
backgroundColor: Colors.transparent),
BottomNavigationBarItem(
icon: Icon(Icons.search),
label: 'a',
backgroundColor: Colors.yellow),
BottomNavigationBarItem(
icon: Icon(Icons.person),
label: 'a',
backgroundColor: Colors.blue,
),
BottomNavigationBarItem(
icon: Icon(Icons.person),
label: 'a',
backgroundColor: Colors.blue,
),
],
type: BottomNavigationBarType.shifting,
selectedItemColor: Colors.black,
iconSize: 20,
elevation: 5),
),
Positioned(
top: height * 0.25,
left: width * 0.40,
child: FloatingActionButton(
onPressed: () {},
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(15)),
child: Icon(Icons.video_call),
),
),
],
),
),
),
],
),
Try below code:
Scaffold(
body: Container(),
floatingActionButton: FloatingActionButton(
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10)),
onPressed: () {},
tooltip: 'Increment',
child: Icon(Icons.video_camera_back),
elevation: 4.0,
backgroundColor: Colors.pink,
),
bottomNavigationBar: BottomAppBar(
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: IconButton(icon: Icon(Icons.home), onPressed: () {}),
),
Expanded(
child: IconButton(icon: Icon(Icons.show_chart), onPressed: () {}),
),
Expanded(child: new Text('')),
Expanded(
child: IconButton(icon: Icon(Icons.tab), onPressed: () {}),
),
Expanded(
child: IconButton(icon: Icon(Icons.settings), onPressed: () {}),
),
],
),
),
floatingActionButtonLocation: FloatingActionButtonLocation.centerDocked,
)
Result->
Refer persistent_bottom_nav_bar also and refer bottom_nav_bar also for more design of
I am trying to create a Bottom Navigation Bar with a button group in the middle. The 2 icons on either side of the button group will switch the displayed screen. The centered button group has 3 buttons which would act on the displayed screen. This is similar to the new Google Assistant bottom bar
.
I tried using the BottomNavigationBar with the centre item a custom widget. However the sizes of all the items end up equal. Any help creating this layout would be appreciated. Thanks.
This is the design I am trying to achieve
Here's what I have now:
#override
Widget build(BuildContext context) {
return WillPopScope(
onWillPop: () async => false,
child: Scaffold(
appBar: AppBar(
backgroundColor: Theme.of(context).colorScheme.primary,
foregroundColor: Theme.of(context).colorScheme.secondary,
leading: IconButton(
icon: Image.asset(alInvertedIcon, width: 32, semanticLabel: "Home screen"),
onPressed: () {
push(const HomeScreen());
},
iconSize: 32,
),
title: Image.asset(alTextInv, width: 175),
centerTitle: true,
actions: [
IconButton(
icon: const Icon(Icons.person_outlined, semanticLabel: "User Profile"),
onPressed: () {
push(const ProfileScreen());
},
iconSize: 32,
)
],
),
body: bodyWidget,
bottomNavigationBar: BottomNavigationBar(
type: BottomNavigationBarType.fixed,
onTap: _onItemTapped,
showSelectedLabels: false,
showUnselectedLabels: false,
backgroundColor: Theme.of(context).colorScheme.secondary,
selectedItemColor: Theme.of(context).colorScheme.primary,
unselectedItemColor: Colors.grey,
currentIndex: _currentIndex,
items: [
const BottomNavigationBarItem(
icon: Icon(
Icons.camera_alt,
),
label: 'Visual',
),
BottomNavigationBarItem(
icon: SizedBox(
width: 300,
child: _actionPanel(),
),
label: 'Add',
),
const BottomNavigationBarItem(
icon: Icon(
Icons.chat,
),
label: 'Text',
),
],
),
),
);
}
Widget _actionPanel() {
return Material(
elevation: 1.0,
borderRadius: const BorderRadius.all(Radius.circular(25)),
child: Row(
children: <Widget>[
IconButton(
onPressed: () {},
icon: const Icon(
Icons.refresh,
),
),
IconButton(
onPressed: () {},
icon: const Icon(
Icons.mic,
),
),
IconButton(
onPressed: () {},
icon: const Icon(
Icons.camera,
),
),
],
),
);
}
Try using this way.
Widget _actionPanel() {
return Material(
elevation: 1.0,
borderRadius: BorderRadius.all(Radius.circular(25)),
child: Container(
padding: EdgeInsets.symmetric(vertical: 3),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceAround,
children: [
MaterialButton(
onPressed: () {},
shape: CircleBorder(),
minWidth: 0,
padding: EdgeInsets.all(5),
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
child: Icon(Icons.refresh),
),
MaterialButton(
onPressed: () {},
shape: CircleBorder(),
minWidth: 0,
padding: EdgeInsets.all(5),
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
child: Icon(Icons.mic),
),
MaterialButton(
onPressed: () {},
shape: CircleBorder(),
minWidth: 0,
padding: EdgeInsets.all(5),
materialTapTargetSize: MaterialTapTargetSize.shrinkWrap,
child: Icon(Icons.camera),
),
],
),
),
);
}
I have a persistentFooterButtons option for my Scaffold.
persistentFooterButtons: [
FloatingActionButton(
heroTag: "editself",
child: Icon(Icons.edit),
onPressed: () {
print(InterfaceViewRoute);
Navigator.pushNamed(context, InterfaceViewRoute, arguments: "-1");
}),
FloatingActionButton(
heroTag: "scanneredit",
child: Icon(Icons.qr_code_scanner_rounded),
onPressed: () => _scan(),
),
],
);
But now the whole background is filled there. See image:
Is there a way to make this background transparent so that you can see the list all the way down
Transparent Footer with Floating Action buttons
This is a Code Snippet.
floatingActionButton: Container(
width: MediaQuery.of(context).size.width,
padding: const EdgeInsets.only(
left: 40.0,
),
child: Row(
crossAxisAlignment: CrossAxisAlignment.end,
children: [
FloatingActionButton(
tooltip: 'Home',
child: Icon(
Icons.home,
color: Colors.black,
),
onPressed: () {},
backgroundColor: Colors.white.withOpacity(.4),
),
Spacer(),
FloatingActionButton(
tooltip: 'Details',
child: Icon(
Icons.details,
color: Colors.black,
),
onPressed: () {},
backgroundColor: Colors.white.withOpacity(.4),
),
Spacer(),
FloatingActionButton(
tooltip: 'Bar Chart',
child: Icon(
Icons.bar_chart_outlined,
color: Colors.black,
),
onPressed: () {},
backgroundColor: Colors.white.withOpacity(.4),
),
Spacer(),
FloatingActionButton(
tooltip: 'Settings',
child: Icon(
Icons.settings,
color: Colors.black,
),
onPressed: () {},
backgroundColor: Colors.white.withOpacity(.4),
),
],
),
),
Have you tried put Row in floatingActionButton?
floatingActionButton: Row(
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
FloatingActionButton(
),
SizedBox(width: 10,),
FloatingActionButton(
),
],
)),
Another way is to use bottomNavigationBar of Scaffold
...
extendBody: true, // if you want body to be extended below buttons
bottomNavigationBar: SafeArea(
child: Container(
child: TextButton(child: Text('button'), onPressed: () {}), //or row of buttons
width: MediaQuery.of(context).size.width,
color: Colors.transparent, //background color
padding: EdgeInsets.only(top: 5, bottom: 3),
),
),
...
When the keyboard is activated, persistentFooterButtons are covered.
...
persistentFooterButtons: <Widget>[
ButtonBar(
children: [
IconButton(
iconSize: 15,
onPressed: () {},
icon: Icon(Icons.east, color: Colors.green),
),
IconButton(
iconSize: 15,
onPressed: () {},
icon: Icon(Icons.api, color: Colors.blue),
),],),],
); //Scaffold
When the keyboard is activated, the icons should be displayed above the keyboard.
write in floatingActionButton
for example :
floatingActionButton: Column(
children: [
Row(
children: [
Expanded(child: Container()),
FloatingActionButton(
onPressed: _incrementCounter,
tooltip: 'Increment',
child: Icon(Icons.add),
),
],
),
Container(
height: 1, color: Colors.grey , margin: EdgeInsets.only(top: 10 , left: 30),
),
Container(
child: ButtonBar(
children: [
IconButton(
iconSize: 15,
onPressed: () {},
icon: Icon(Icons.extension, color: Colors.green),
),
IconButton(
iconSize: 15,
onPressed: () {},
icon: Icon(Icons.ac_unit, color: Colors.blue),
),
],
),
)
],
mainAxisAlignment: MainAxisAlignment.end,
), //
Need to adjust the position of the Flatbutton and IconButton in Raw. How to use Stack and Positioned in the below code. is it possible to apply stack and positioned in this code?
return MaterialApp(
home: Scaffold(
body: Column(children: [
FlatButton( // `need to position in bottom right side`
color: Colors.green,
textColor: Colors.black,
padding: EdgeInsets.all(8.0),
onPressed: () {},
child: Text(
'Save',
style: TextStyle(fontSize: 20.0),
)),
Row(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: <Widget>[
Expanded(
child: GestureDetector(
child: IconButton( // `need to position in center`
icon: Icon(Icons.mic),
color: Colors.black,
iconSize: 50,
onPressed: () async {
startRecord();
}),
),
),
Expanded(
child: GestureDetector(
child: IconButton( // `need to position in bottom center'
icon: Icon(Icons.pause),
color: Colors.black,
iconSize: 50,
onPressed: () {
pauseRecord();
},
),
),
),
RecordMp3.instance.status == RecordStatus.PAUSE
? Expanded(
child: GestureDetector(
child: IconButton(
icon: Icon(Icons.play_arrow),
color: Colors.black,
iconSize: 50,
onPressed: () {
resumeRecord();
},
),
),
)
: SizedBox(),
Expanded(
child: GestureDetector(
child: IconButton(
icon: Icon(Icons.stop),
color: Colors.black,
iconSize: 50,
onPressed: () {
stopRecord();
},
),
),
),
],
),
Padding(
padding: const EdgeInsets.only(top: 20.0),
child: Text(
statusText,
style: TextStyle(color: Colors.red, fontSize: 20),
),
),
isComplete && recordFilePath != null
? Expanded(
child: GestureDetector(
child: IconButton( // `need to position in between bottom and middle`
icon: Icon(Icons.play_circle_filled),
color: Colors.black,
iconSize: 50,
onPressed: () {
play();
}),
),
)
: SizedBox(),
]),
),
);
need to position the Flatbutton in the right bottom. need to position the Iconbuttons in middle and space between the middle and bottom.