Package io.flutter.embedding.android

## Class KeyData

- java.lang.Object
- - io.flutter.embedding.android.KeyData

-     public class KeyData
      extends Object

  The resulting Flutter key events generated by `KeyEmbedderResponder`, and are sent through the messenger after being marshalled with `toBytes()`.

  This class is the Java adaption of `KeyData` and `KeyDataPacket` in the C engine. Changes made to either side must also be made to the other.

  Each `KeyData` corresponds to a `ui.KeyData` in the framework.

- - ### Nested Class Summary

    Nested Classes
    Modifier and Type | Class | Description
    --- | --- | ---
    `static class` | `KeyData.Type` | The action type of the key data.

  - ### Field Summary

    Fields
    Modifier and Type | Field | Description
    --- | --- | ---
    `static String` | `CHANNEL` | The channel that key data should be sent through.

  - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `KeyData()` | Creates an empty `KeyData`.
    `KeyData​(ByteBuffer buffer)` | Unmarshal fields from a buffer.

  - ### Method Summary

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### CHANNEL

          public static final String CHANNEL

      The channel that key data should be sent through.

      Must be kept in sync with kFlutterKeyDataChannel in embedder.cc

      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### KeyData

          public KeyData()

      Creates an empty `KeyData`.

    - #### KeyData

          public KeyData​(@NonNull
                         ByteBuffer buffer)

      Unmarshal fields from a buffer.

      For the binary format, see `lib/ui/window/key_data_packet.h`.