如何在适配器中执行最新的喷气背包“视图绑定”，绑定视图？

Question

如何在适配器中执行最新的喷气背包“视图绑定”，以自动绑定视图。我没有使用 findVeiwById 或 Butterknife 或 Kotlin 合成工具？？？我已经使用了新的视图绑定，并且对于 Activity 和 Fragment 工作正常。在 build.gradle 文件中启用 viewBinding 后，我能够看到 ActivityHomeBinding 和 FragmentHomeBinding 文件。另外，我看到了用于项目 xml 的 ItemListBinding 类，即 item_list.xml。但是如何在recyclerview的adapter中使用这个文件

viewBinding {
        enabled = true
}

主页活动文件

override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityHomeBinding.inflate(layoutInflater)
        setContentView(binding.root)
}

分段

override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        binding = FragmentHomeBinding.inflate(inflater, container, false)
        val view = binding.root
        return view
}

Base Adapter：想在这里使用视图绑定。我能够看到 ItemListBinding，但不知道如何使用它。

class BaseAdapter @Inject constructor(
    private val context: Context,
    private val picasso: Picasso
) :
    RecyclerView.Adapter<BaseAdapter.ViewHolder>() {

    private var data = ArrayList<Data>()

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
        return ViewHolder(
            LayoutInflater.from(context).inflate(R.layout.item_list, parent, false)
        )
    }

    override fun getItemCount() = data.size

    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
        with(holder) {
              // TODO
        }
    }

    class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {

        @BindView(R.id.tvMovieName)
        lateinit var nameTV: TextView

        @BindView(R.id.imageView)
        lateinit var bannerImage: ImageView

        init {
            ButterKnife.bind(this@ViewHolder, view)
        }
    }

    fun setData(serverData: ArrayList<Data>) {
        data = serverData
        notifyDataSetChanged()
    }
}

Answer 1

您可以使用bindViewBinding 的静态方法从现有布局创建绑定。将其作为属性添加到 viewholder：

class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
   val binding = ItemListBinding.bind(view)
}

然后您可以通过该binding字段访问所有视图，例如：

override fun onBindViewHolder(holder: ViewHolder, position: Int) {
    with(holder) {
          // TODO
          binding.tvMovieName.text = data[position].title
          binding.imageView.setDrawableImage(data[position].image)
    }
}

Answer 2

找到另一个来解决它

override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
        val binding = ItemListBinding.inflate(LayoutInflater.from(context), parent, false)
        return MovieViewHolder(binding)
}

override fun onBindViewHolder(holder: ViewHolder, position: Int) {
        with(holder) {

            with(moviesData[position]) {
                binding.tvMovieName.text = title
            }
        }
    }
}

class MovieViewHolder(val binding: ItemMovieBinding) : RecyclerView.ViewHolder(binding.root)

Answer 3

与您通常的做法相比，没有什么真正改变。

class DataAdapter(
    private val context: Context,
    private val picasso: Picasso
) : RecyclerView.Adapter<DataAdapter.ViewHolder>() {
    private var dataList: List<Data> = Collections.emptyList()

    override fun getItemCount() = dataList.size

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder = ViewHolder(
        LayoutInflater.from(context).inflate(R.layout.item_list, parent, false)
    )

    override fun onBindViewHolder(holder: ViewHolder, position: Int) {
        holder.bind(dataList[position])
    }

    fun setData(dataList: List<Data>) {
        this.dataList = dataList
        notifyDataSetChanged()
    }

    class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
        private val binding = ItemListBinding.bind(view)   

        fun bind(data: Data) {
            with(binding) {
                // TODO
                nameTV.text = data.name
                bannerImage.loadWithPicasso(picasso, data.imageUrl)
            }
        }
    }
}