我正在转换一堆视图来代替使用RecyclerView中的ViewHolder模式。我有需要在onAttachedToWindow()和onDetachedFromWindow()中运行的代码,或者在View生命周期方面最接近它的代码。我能做些什么来复制它?
答案 0 :(得分:0)
我们可以在View.OnAttachStateChangeListener
中实现ViewHolder
:
class SomeViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView),
View.OnAttachStateChangeListener {
...
init {
itemView.addOnAttachStateChangeListener(this)
}
override fun onViewDetachedFromWindow(v: View?) {
// Do what you need
}
override fun onViewAttachedToWindow(v: View?) {
// Do what you need
}
}
在Adapter
中,我们在onCreateViewHolder(...)
中设置了视图:
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): SomeViewHolder {
val view = LayoutInflater.from(parent.context).inflate(R.layout.some_item, parent, false)
return SomeViewHolder(view)
}