I have a design in adobe xd. I want to apply it to flutter. The application should not have a status bar bottom in all layout screens. I added this code in the main:
main code :
void main() {
SystemChrome.setEnabledSystemUIMode(SystemUiMode.manual,
overlays: [SystemUiOverlay.top]);
runApp(const MyApp());
}
status bar bottom has actually disappeared but when I press a button to enter another screen it appears first on the first click and when I press again it moves to the other screen and remains visible and does not disappear even though I put the status bar bottom code in the main
These attached pictures illustrate my explanation above in full:
:
import 'package:flutter/services.dart';
Hide Statusbar
SystemChrome.setEnabledSystemUIMode([SystemUiOverlay.bottom])
For Single Screen
#override
void initState() {
// put hide code here to hide statusbar
super.initState();
}
Related
Is there any way for me to create different splash screen for multiple flavor in flutter?
I'll try to edit later for Android, but as for the iOS, here's the process.
<key>UILaunchStoryboardName</key>
<string>LaunchScreen</string>
That's how your LaunchScreen is defined in Info.plist.
Open XCode, add User-Defined Setting.
By opening the build settings and clicking the tiny + button.
Add a variable, like LAUNCH_SCREEN.
Now we will create another LaunchScreen, by creating new LaunchScreen, like called LaunchScreenFlavor2.
Once you create the new launch screen, and assign LAUNCH_SCREEN variable to that storyboards, scroll to the beginning of my answer, and give the variable in Info.plist. Like:
<key>UILaunchStoryboardName</key>
<string>${LAUNCH_SCREEN}</string>
on main.dart
import 'dart:io';
Widget splashScreen = DefaultSplash();
void main() async {
...
if (Platform.isIOS) {
splashScreen = SplashScreenIOS();
} else if (Platform.isAndroid) {
splashScreen = SplashScreenAndroid();
}
...
}
then in MyApp class
MaterialApp(
home : splashScreen
)
I'd like to remove the status bar at the top of android screens. When I add the code below to my first screen
void initState() {
super.initState();
SystemChrome.setEnabledSystemUIMode(SystemUiMode.manual, overlays: []);
}
it removes the bar but adds the dialog below? How do I just remove the status bar?
When I launch my app with the smartphone emulator I get a white space at the bottom :
I tried to add this line in my Scaffold but doesn't seems to work :
resizeToAvoidBottomInset: false
It looks like the white space is coming from your device navigation bar.
Try to set SystemChrome.setEnabledSystemUIMode() to manually set the ui overlays you want.
Future<void> main() async {
WidgetsFlutterBinding.ensureInitialized();
SystemChrome.setEnabledSystemUIMode(
SystemUiMode.manual,
overlays: [SystemUiOverlay.top],
);
runApp(AppWidget());
}
Or set overlays: [], for fullscreen
Documentation: https://api.flutter.dev/flutter/services/SystemChrome/setEnabledSystemUIMode.html
I am trying to get bottom system navigation like the image below:
I've tried with AnnotatedRegion but not working. When I try to make it transparent it gets like this:
I am not able to use the area on system navigator bar. How can I use the restricted area? I have a background image, I want to have the image also cover the bottom restricted area. Thanks
Found the answer from this GitHub discussion.
In android/app/build.gradle
dependencies {
implementation 'androidx.core:core-ktx:1.5.0-beta01'
}
In android/app/src/main/kotlin/com/example/edge2edge/MainActivity.kt
package com.example.edge2edge
import androidx.core.view.WindowCompat
import io.flutter.embedding.android.FlutterActivity
class MainActivity: FlutterActivity() {
override fun onPostResume() {
super.onPostResume()
WindowCompat.setDecorFitsSystemWindows(window, false).
}
}
In main.dart
void main() {
SystemChrome.setSystemUIOverlayStyle(SystemUiOverlayStyle(
statusBarColor: Colors.transparent,
statusBarIconBrightness: Brightness.dark,
systemNavigationBarColor: Colors.transparent,
));
runApp(MyApp());
}
This is probably because your current widget is wrapped inside a (or equivalent) SafeArea widget!
I do think that widgets such as Scaffold have that kind of behaviour.
So if you just used a Container instead of a Scaffold, you would probably be able to draw in this area.
I used to remove all my widgets and just add a Container(align: Alignment.center, color: Colors.red) and see if it could reach the area or not. Moving this red container in the widget tree will give you hints about which widget causes the issue.
I have created flat buttons that hide or show widget by inserting and removing widget in overlay.
And if I keep pressing the hide button even after there are no more widgets left in overlay, I get
'_overlay != null': is not true.
Now, I wish to add a check in there but I didn't find any way to check present number of widgets in Overlay stack.
Any help?
void showOverlayEntry() {
createOverlayEntry();
Overlay.of(context).insert(overlayEntry);
}
void removeOverlayEntry() {
//wish to add a check here if there are no more inserts left to remove
overlayEntry.remove();
}