io.flutter.embedding.android

Interface FlutterEngineProvider

All Known Implementing Classes:

FlutterFragmentActivity

public interface FlutterEngineProvider

Provides a FlutterEngine instance to be used by a FlutterActivity or FlutterFragment.

FlutterEngine instances require significant time to warm up. Therefore, a developer might choose to hold onto an existing FlutterEngine and connect it to various FlutterActivitys and/or FlutterFragments. This interface facilitates providing a cached, pre-warmed FlutterEngine.

Method Summary

Modifier and Type	Method and Description
FlutterEngine	provideFlutterEngine(Context context) Returns the FlutterEngine that should be used by a child FlutterFragment.

Method Detail

provideFlutterEngine

@Nullable
FlutterEngine provideFlutterEngine(@NonNull
                                             Context context)

Returns the FlutterEngine that should be used by a child FlutterFragment.

This method may return a new FlutterEngine, an existing, cached FlutterEngine, or null to express that the FlutterEngineProvider would like the FlutterFragment to provide its own FlutterEngine instance.