Package io.flutter.embedding.engine

Interface FlutterJNI.AccessibilityDelegate

All Known Subinterfaces:

AccessibilityChannel.AccessibilityMessageHandler

Enclosing class:

FlutterJNI

public static interface FlutterJNI.AccessibilityDelegate

Delegate responsible for creating and updating Android-side caches of Flutter's semantics tree and custom accessibility actions.

AccessibilityBridge is an example of an AccessibilityDelegate.

Method Summary

Modifier and Type	Method	Description
void	updateCustomAccessibilityActions(ByteBuffer buffer, String[] strings)	Sends new custom accessibility actions from Flutter to Android.
void	updateSemantics(ByteBuffer buffer, String[] strings, ByteBuffer[] stringAttributeArgs)	Sends new SemanticsNode information from Flutter to Android.

Method Detail

updateCustomAccessibilityActions

void updateCustomAccessibilityActions(@NonNull
                                      ByteBuffer buffer,
                                      @NonNull
                                      String[] strings)

Sends new custom accessibility actions from Flutter to Android.

Implementers are expected to maintain an Android-side cache of custom accessibility actions. This method provides new actions to add to that cache.

updateSemantics

void updateSemantics(@NonNull
                     ByteBuffer buffer,
                     @NonNull
                     String[] strings,
                     @NonNull
                     ByteBuffer[] stringAttributeArgs)

Sends new SemanticsNode information from Flutter to Android.

Implementers are expected to maintain an Android-side cache of Flutter's semantics tree. This method provides updates from Flutter for the Android-side semantics tree cache.