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class LiveStreamActivity : AppCompatActivity(R.layout.activity_main) { | |
private val adapter = MessagesListAdapter() | |
private val messageListSmoothScroller by lazy { | |
object : LinearSmoothScroller(this) { | |
val MILLISECONDS_PER_INCH = 400f | |
override fun calculateSpeedPerPixel(displayMetrics: DisplayMetrics?): Float { | |
return MILLISECONDS_PER_INCH / displayMetrics!!.densityDpi | |
} |
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private fun updateMessagesList(messages: List<Message>) { | |
adapter.submitList(messages) | |
adapter.notifyDataSetChanged() | |
val scrollTarget = adapter.itemCount | |
messageListSmoothScroller.targetPosition = scrollTarget | |
messagesList.layoutManager?.startSmoothScroll(messageListSmoothScroller) | |
} |
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class ChannelFragment : Fragment() { | |
//... | |
override fun onViewCreated(view: View, savedInstanceState: Bundle?) { | |
binding.messageListView.setMessageViewHolderFactory(MyCustomMessageViewHolderFactory()) | |
} | |
} |
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