How can I remove the debug banner in Flutter?

Question

I'm using flutter screenshot and I expected the screenshot to not have a banner, but it has.

Note that I get a not supported for emulator message for profile and release mode.

Answer 1

On your MaterialApp set debugShowCheckedModeBanner to false.

MaterialApp(
 debugShowCheckedModeBanner: false,
)

The debug banner will also automatically be removed on the release build.

• Alex Angelico: Usage: return new MaterialApp( home: new LoginPage(), debugShowCheckedModeBanner: false, theme: new ThemeData( primarySwatch: Colors.green, ));
• Ashish: do i need to use debugShowCheckedModeBanner: false on each class means activity ?
• Eric Seidel: The flutter tool's built-in screenshot command also knows how to automatically remove the "debug" banner while taking a screenshot if that's helpful.
• Thomas: @EricSeidel Not by default it doesn't (Flutter 1.16.4-pre.18 • channel master • github.com/flutter/flutter.git Framework • revision c8efcb632b (6 weeks ago) • 2020年03月27日 22:31:01 -0700 Engine • revision 3ee9e3d378) Is there a trick to enable this?
• Moti Bartov: Is there any way to show it in release build? I am building a release versions but for dev/production environments

Answer 2

Outdated

• If you are using Android Studio, you can find the option in the Flutter Inspector tab → More Actions.

  Android Studio

• Or if you're using Dart DevTools, you can find the same button in the top right corner as well.

  Dart DevTools

• stan: Disappeared on the DevTools View, but I have found it through AndroidStudio

Answer 3

Well, this is the simple answer you want.

MaterialApp(
 debugShowCheckedModeBanner: false
)
CupertinoApp(
 debugShowCheckedModeBanner: false
)

But if you want to go deep with the app (want a release APK file (which doesn't have a debug banner) and if you are using Android Studio then go to Run → Flutter → Run 'main.dart' in Release mode.

Answer 4

If you are using IntelliJ IDEA, there is an option in the Flutter Inspector to disable it.

Run the project:

Open the Flutter inspector

Hide the slow banner

When you are in the Flutter Inspector, click or choose "More Actions."

Picture of the Flutter Inspector

When the menu appears, choose "Hide Debug Mode Banner":

Picture of Hide Debug Mode Banner

• AaA: This menu and related item doesn't exist in idea 2020.3 and flutter 55.0.3

Answer 5

The debug banner appears only while in development and is automatically removed in the release build.

To hide this there is a need to set debugShowCheckedModeBanner to false

MaterialApp(
 debugShowCheckedModeBanner: false,
)

enter image description here

Answer 6

Three ways to remove flutter debug banner:-

1. In the MaterialApp/ScaffoldApp

Snippet

MaterialApp(
 debugShowCheckedModeBanner: false,
)

OR

ScaffoldApp(
 debugShowCheckedModeBanner: false,
 );

---

2.By making release version of your app

For running release version of your app, use this command

flutter run --release

Or if using real devices rather than emulators or simulators. make a build version of the app.

flutter build apk

---

3.BY using dart dev tool to remove debug banner

IN vs code type ctr+shift+pin windows and for mac cmd+shift+p and use this command to open dart dev tool

Dart: Open DevTools

enter image description here

• The Coder: Ctrl-Shift-P stopped my phone debugging working, and didn't bring up the Dart Dev tools. Have restarted Android Studio and still not working, will try reboot now, but try at your own risk!

Answer 7

There is also another way for removing the "debug" banner from the Flutter app. Now after a new release there is no "debugShowCheckedModeBanner: false," code line in the main .dart file. So I think these methods are effective:

1. If you are using Visual Studio Code, then install `"Dart DevTools" from extensions. After installation, you can easily find the "Dart DevTools" text icon at the bottom of Visual Studio Code. When you click on that text icon, a link will be opened in Google Chrome. From that link page, you can easily remove the banner by just tapping on the banner icon as shown in this screenshot.

NOTE: Dart DevTools is a Dart language debugger extension in Visual Studio Code

2. If Dart DevTools is already installed in your Visual Studio Code, then you can directly open Google Chrome and open the URL "127.0.0.1: ZZZZZ/?hide=debugger&port=XXXXX"

Note: In this link, replace "XXXXX" by 5 digit port-id (on which your Flutter app is running) which will vary whenever you use the flutter run command and replace "ZZZZZ" by your global (unchangeable) 5 digit debugger-id

Note: These Dart developer tools are only for the Google Chrome browser

Answer 8

On your MaterialApp set debugShowCheckedModeBanner to false.

 MaterialApp(
 debugShowCheckedModeBanner: false,
 )

The debug banner will also automatically be removed on release build.

If you are using emulator or real device and you want to check it on release mode then =>

 flutter run release --apk 

run this command on terminal Android Studio / Vs Code

Answer 9

To remove the Flutter debug banner, there are several possibilities:

1. The first one is to use the debugShowCheckModeBanner property in your MaterialApp widget.

   Code:

   MaterialApp(
    debugShowCheckedModeBanner: false,
   )
   

   And then do a hot reload.

2. The second possibility is to hide debug mode banner in Flutter Inspector if you use Android Studio or IntelliJ IDEA.

   Enter image description here

3. The third possibility is to use Dart DevTools.

• AaA: This menu and related item doesn't exist in idea 2020.3 and flutter 55.0.3

Answer 10

All other answers are great for Android Studio, but if using Visual Studio Code there is a command you can use to toggle this easily. Open the command palette (Mac: Cmd + Shift + P or Windows: Ctrl + Shift + P). Then type toggle debug-mode banner as shown below:

Enter image description here

Answer 11

Use:

MaterialApp(
 debugShowCheckedModeBanner: false,
)

This is the code for removing this banner. The debug banner is due to MaterialApp, e.g., you can see this banner on all that pages that use MaterialApp.

There should be at least one MaterialApp in your app on main root.

Answer 12

It's the app.dart class property.

It displays a banner, saying "DEBUG" when running in checked mode. MaterialApp builds one of these by default.

For disabling this banner in debug mode also, you can set a Boolean false.

return MaterialApp(
 theme:....
 debugShowCheckedModeBanner: false,
 home: SplashScreen(),
);

In release mode this has no effect.

Answer 13

If you are still in debug mode, you can switch to release mode and the banner will be gone.

release

enter image description here

You can also open the same Run/Debug Configurations window via shortcuts:

ALT+SHIFT+F10, then Press 0 and Press ALT+a.

Now enter --release.

Answer 14

If you use Scaffold in Return Section so add on Top MaterialApp and Restart

void main() => runApp(
 const MaterialApp(
 debugShowCheckedModeBanner: false, 
 home: Home()),
 );

• Nehal Babu: This works well

Answer 15

This is the simplest way.

For : MaterialApp( debugShowCheckedModeBanner: false )

For : CupertinoApp( debugShowCheckedModeBanner: false )

If you are logically handle another flutter components them you use a bool variable & handle it. For Example bool isDebug === false ;

if(isDebug == true) { debugShowCheckedModeBanner: true }

else { debugShowCheckedModeBanner: false }

Thanks & Enjoy)):

• lepsch: Though we thank you for your answer, it would be better if it provided additional value on top of the other answers. In this case, your answer does not provide additional value, since another user already posted that solution. If a previous answer was helpful to you, you should vote it up once you have enough reputation

Answer 16

If you are using the Material library

MaterialApp(
 debugShowCheckedModeBanner: false
)

If you are using the GetX library

GetMaterialApp(
 debugShowCheckedModeBanner: false
)

If you are using the Cupertino library

CupertinoApp(
 debugShowCheckedModeBanner: false
)

• Nehal Babu: This works for me

Answer 17

add debugShowCheckedModeBanner: false, into the materialApp Widget.

 MaterialApp(
 debugShowCheckedModeBanner: false
)

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