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These are already automatically adapted when using
the Material AppBar and SliverAppBar widgets.
You can also further customize the properties of these widgets to better
match iOS platform styles, as shown below.But, because app bars are displayed alongside
other content in your page, it’s only recommended to adapt the styling
so long as its cohesive with the rest of your application. You can see
additional code samples and a further explanation in
the GitHub discussion on app bar adaptations.<topic_end>
<topic_start>
Bottom navigation bars
Since Android 12, the default UI for bottom navigation
bars follow the design guidelines defined in Material 3.
On iOS, an equivalent component called “Tab Bars”
is defined in Apple’s Human Interface Guidelines (HIG).Since tab bars are persistent across your app, they should match your
own branding. However, if you choose to use Material’s default
styling on Android, you might consider adapting to the default iOS
tab bars.To implement platform-specific bottom navigation bars,
you can use Flutter’s NavigationBar widget on Android
and the CupertinoTabBar widget on iOS.
Below is a code snippet you can
adapt to show a platform-specific navigation bars.<topic_end>
<topic_start>
Text fields
Since Android 12, text fields follow the
Material 3 (M3) design guidelines.
On iOS, Apple’s Human Interface Guidelines (HIG) define
an equivalent component.Since text fields require user input,
their design should follow platform conventions.To implement a platform-specific TextField
in Flutter, you can adapt the styling of the
Material TextField.To learn more about adapting text fields, check out
the GitHub discussion on text fields.
You can leave feedback or ask questions in the discussion.<topic_end>
<topic_start>
Alert dialog
Since Android 12, the default UI of alert dialogs
(also known as a “basic dialog”) follows the design guidelines
defined in Material 3 (M3).
On iOS, an equivalent component called “alert” is defined in Apple’s
Human Interface Guidelines (HIG).Since alert dialogs are often tightly integrated with the operating system,
their design generally needs to follow the platform conventions.
This is especially important when a dialog is used to request user input
about security, privacy, and destructive operations (e.g., deleting files
permanently). As an exception, a branded alert dialog design can be used on
non-critical user flows to highlight specific information or messages.To implement platform-specific alert dialogs,
you can use Flutter’s AlertDialog widget on Android
and the CupertinoAlertDialog widget on iOS. Below is a code snippet you can
adapt to show a platform-specific alert dialog.To learn more about adapting alert dialogs, check out
the GitHub discussion on dialog adaptations.
You can leave feedback or ask questions in the discussion.
<topic_end>
<topic_start>Android
<topic_end>
<topic_start>
Topics
<topic_end>
<topic_start>Add Android devtools for Flutter
To choose the guide to add Android Studio to your Flutter configuration,
click the Getting Started path you followed.
<topic_end>
<topic_start>Adding a splash screen to your Android app
Splash screens (also known as launch screens) provide
a simple initial experience while your Android app loads.
They set the stage for your application,
while allowing time for the app engine
to load and your app to initialize.<topic_end>
<topic_start>
Overview
warning Warning
If you are experiencing a crash from implementing a splash screen, you
might need to migrate your code. See detailed instructions in the
Deprecated Splash Screen API Migration guide.In Android, there are two separate screens that you can control:
a launch screen shown while your Android app initializes,
and a splash screen that displays while the Flutter experience
initializes.info Note
As of Flutter 2.5, the launch and splash screens have been
consolidated—Flutter now only implements the Android launch screen,
which is displayed until the framework draws the first frame.
This launch screen can act as both an Android launch screen and an
Android splash screen via customization, and thus, is referred to
as both terms. For example of such customization, check out the
Android splash screen sample app.If, prior to 2.5, you used flutter create to create an app,
and you run the app on 2.5 or later, the app might crash.
For more info, see the Deprecated Splash Screen API Migration guide.info Note
For apps that embed one or more Flutter screens within an
existing Android app, consider
pre-warming a FlutterEngine and reusing the
same engine throughout your app to minimize wait
time associated with initialization of the Flutter engine.<topic_end>
<topic_start>
Initializing the app
Every Android app requires initialization time while the
operating system sets up the app’s process.
Android provides the concept of a launch screen to
display a Drawable while the app is initializing.A Drawable is an Android graphic.
To learn how to add a Drawable to your
Flutter project in Android Studio,
check out Import drawables into your project
in the Android developer documentation.The default Flutter project template includes a definition
of a launch theme and a launch background. You can customize
this by editing styles.xml, where you can define a theme