相关疑难解决方法(0)

背景

可以使用以下方法将RecyclerView捕捉到其中心:

LinearSnapHelper().attachToRecyclerView(recyclerView)

例:

MainActivity.kt

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        val inflater = LayoutInflater.from(this)

        recyclerView.adapter = object : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
            override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
                val textView = holder.itemView as TextView
                textView.setBackgroundColor(if (position % 2 == 0) 0xffff0000.toInt() else 0xff00ff00.toInt())
                textView.text = position.toString()
            }

            override fun getItemCount(): Int {
                return 100
            }

            override fun onCreateViewHolder(parent: ViewGroup?, viewType: Int): RecyclerView.ViewHolder {
                val view = inflater.inflate(android.R.layout.simple_list_item_1, parent, false) as TextView
                val cellSize = …