Package io.flutter.embedding.android

Class FlutterFragmentActivity.NewEngineInGroupIntentBuilder

java.lang.Object

io.flutter.embedding.android.FlutterFragmentActivity.NewEngineInGroupIntentBuilder

Enclosing class:

FlutterFragmentActivity

public static class FlutterFragmentActivity.NewEngineInGroupIntentBuilder
extends Object

Builder to create an Intent that launches a FlutterFragmentActivity with a new FlutterEngine by FlutterEngineGroup#createAndRunEngine.

Constructor Summary

Constructors

Constructor	Description
NewEngineInGroupIntentBuilder(Class<? extends FlutterFragmentActivity> activityClass, String engineGroupId)	Constructor that allows this NewEngineInGroupIntentBuilder to be used by subclasses of FlutterActivity.

Method Summary

Modifier and Type	Method	Description
FlutterFragmentActivity.NewEngineInGroupIntentBuilder	backgroundMode(FlutterActivityLaunchConfigs.BackgroundMode backgroundMode)	The mode of FlutterFragmentActivity's background, either FlutterActivityLaunchConfigs.BackgroundMode.opaque or FlutterActivityLaunchConfigs.BackgroundMode.transparent.
Intent	build(Context context)	Creates and returns an Intent that will launch a FlutterFragmentActivity with the desired configuration.
FlutterFragmentActivity.NewEngineInGroupIntentBuilder	dartEntrypoint(String dartEntrypoint)	The Dart entrypoint that will be executed as soon as the Dart snapshot is loaded, default to "main".
FlutterFragmentActivity.NewEngineInGroupIntentBuilder	initialRoute(String initialRoute)	The initial route that a Flutter app will render in this FlutterFragmentActivity, defaults to "/".

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

NewEngineInGroupIntentBuilder

public NewEngineInGroupIntentBuilder(@NonNull
 Class<? extends FlutterFragmentActivity> activityClass,
 @NonNull
 String engineGroupId)

Constructor that allows this NewEngineInGroupIntentBuilder to be used by subclasses of FlutterActivity.

Subclasses of FlutterFragmentActivity should provide their own static version of FlutterFragmentActivity.withNewEngineInGroup(java.lang.String), which returns an instance of NewEngineInGroupIntentBuilder constructed with a Class reference to the FlutterFragmentActivity subclass, e.g.:

return new NewEngineInGroupIntentBuilder(FlutterFragmentActivity.class, cacheedEngineGroupId);

Parameters:

activityClass - A subclass of FlutterFragmentActivity.

engineGroupId - The engine group id.

Method Details

dartEntrypoint

@NonNull
public FlutterFragmentActivity.NewEngineInGroupIntentBuilder dartEntrypoint(@NonNull
 String dartEntrypoint)

The Dart entrypoint that will be executed as soon as the Dart snapshot is loaded, default to "main".

Parameters:

dartEntrypoint - The dart entrypoint's name

Returns:

The engine group intent builder

initialRoute

@NonNull
public FlutterFragmentActivity.NewEngineInGroupIntentBuilder initialRoute(@NonNull
 String initialRoute)

The initial route that a Flutter app will render in this FlutterFragmentActivity, defaults to "/".

backgroundMode

@NonNull
public FlutterFragmentActivity.NewEngineInGroupIntentBuilder backgroundMode(@NonNull
 FlutterActivityLaunchConfigs.BackgroundMode backgroundMode)

The mode of FlutterFragmentActivity's background, either FlutterActivityLaunchConfigs.BackgroundMode.opaque or FlutterActivityLaunchConfigs.BackgroundMode.transparent.

The default background mode is FlutterActivityLaunchConfigs.BackgroundMode.opaque.

Choosing a background mode of FlutterActivityLaunchConfigs.BackgroundMode.transparent will configure the inner FlutterView of this FlutterFragmentActivity to be configured with a FlutterTextureView to support transparency. This choice has a non-trivial performance impact. A transparent background should only be used if it is necessary for the app design being implemented.

A FlutterFragmentActivity that is configured with a background mode of FlutterActivityLaunchConfigs.BackgroundMode.transparent must have a theme applied to it that includes the following property: <item name="android:windowIsTranslucent">true</item>.

build

@NonNull
public Intent build(@NonNull
 Context context)

Creates and returns an Intent that will launch a FlutterFragmentActivity with the desired configuration.