Composable Diff syntax created.

[ibrahimyilmaz]

Proposed Changes/Issues Fixed

In order to have more readable diff calculation:

val recyclerViewAdapter = adapterOf<MessageViewState> {
                diff(
                    areContentsTheSame = { old, new -> old == new },
                    areItemsTheSame = { old, new -> old.message.id == new.message.id },
                    getChangePayload = { oldItem, newItem ->
                        val diffBundle = Bundle()

                        if (oldItem.selectionState != newItem.selectionState) {
                            diffBundle.putParcelable(
                                MessageViewHolder.KEY_SELECTION,
                                newItem.selectionState
                            )
                        }

                        if (diffBundle.isEmpty) null else diffBundle
                    }
                )
             ...

General

• Change/Fix added to CHANGELOG.md
• Issue Link [kiel] : Make DiffUtil usage composable too #26
• Current Sample was changed/ new sample is introcuded

Testing

• [] Unit-Tests implemented
• Monkey-Test done
• Does your submission pass ./gradlew check?