BRVAH 实现列表无限循环滚动 并且item 可点击 kotlin实现代码
时间: 2024-03-16 18:42:20 浏览: 51
html+css+javascript实现列表循环滚动示例代码
以下是Kotlin实现BRVAH列表无限循环滚动和item可点击的代码示例:
```kotlin
class MyAdapter(data: MutableList<Data>) : BaseQuickAdapter<Data, BaseViewHolder>(R.layout.item_layout, data) {
companion object {
private const val BANNER_VIEW_TYPE = 1
private const val NORMAL_VIEW_TYPE = 2
}
override fun getItemCount(): Int {
// 返回一个很大的数,实现列表的无限循环滚动
return Integer.MAX_VALUE
}
override fun getItemViewType(position: Int): Int {
// 第一个位置返回BANNER_VIEW_TYPE,其他位置返回NORMAL_VIEW_TYPE
return if (position == 0) {
BANNER_VIEW_TYPE
} else {
NORMAL_VIEW_TYPE
}
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BaseViewHolder {
return when (viewType) {
BANNER_VIEW_TYPE -> {
val view = LayoutInflater.from(parent.context).inflate(R.layout.banner_layout, parent, false)
BannerViewHolder(view)
}
else -> {
val view = LayoutInflater.from(parent.context).inflate(R.layout.item_layout, parent, false)
NormalViewHolder(view, mOnItemClickListener)
}
}
}
override fun onBindViewHolder(holder: BaseViewHolder, position: Int) {
// 将数据绑定到itemView上
holder.setData(data[position % data.size])
}
inner class BannerViewHolder(view: View) : BaseViewHolder(view) {
private val bannerLayoutHelper = BannerLayoutHelper()
init {
bannerLayoutHelper.autoPlay = true
bannerLayoutHelper.setLooperEnable(true)
bannerLayoutHelper.setPagePadding(20)
bannerLayoutHelper.setShowIndicator(false)
bannerLayoutHelper.setPageChangeListener(object : PageChangeListener {
override fun onPageSelected(position: Int) {
// do something
}
})
bannerLayoutHelper.bindRecyclerView(recyclerView)
}
}
inner class NormalViewHolder(view: View, onItemClickListener: OnItemClickListener?) : BaseViewHolder<Data>(view), View.OnClickListener {
private val titleTextView = view.findViewById<TextView>(R.id.titleTextView)
private val contentTextView = view.findViewById<TextView>(R.id.contentTextView)
init {
itemView.setOnClickListener(this)
onItemClickListener?.let { setOnItemClickListener(it) }
}
override fun setData(data: Data) {
titleTextView.text = data.title
contentTextView.text = data.content
}
override fun onClick(v: View?) {
// 处理item点击事件
onItemClickListener?.let { it.onItemClick(adapterPosition) }
}
}
}
```
注意:以上代码只是示例,具体实现可能会有所不同,需要根据实际情况进行调整。
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