no.nordicsemi.android.ble.data

Interface DataSplitter

All Known Implementing Classes:

DefaultMtuSplitter

public interface DataSplitter

Method Summary

Modifier and Type	Method and Description
byte[]	chunk(byte[] message, int index, int maxLength) The implementation should return a index'th byte array from given message, with at most maxLength size, or null if no bytes are left to be sent.

Method Detail

chunk

@Nullable
byte[] chunk(@NonNull
                        byte[] message,
                        int index,
                        int maxLength)

The implementation should return a index'th byte array from given message, with at most maxLength size, or null if no bytes are left to be sent.

Parameters:

message - the full message to be chunk.

index - index of a packet, 0-based.

maxLength - maximum length of the returned packet. Equals to MTU-3. Use BleManager.requestMtu(int) to request higher MTU, or BleManager.overrideMtu(int) If the MTU change was initiated by the target device.

Returns:

The packet to be sent, or null, if the whole message was already split.