Android 无法解析RecyclerView中的视图保持架
我是RecyclerView的新手,我想实现这一点,但问题是我无法解决以下代码中的viewholder引用,请帮助我Android 无法解析RecyclerView中的视图保持架,android,kotlin,android-recyclerview,android-viewholder,Android,Kotlin,Android Recyclerview,Android Viewholder,我是RecyclerView的新手,我想实现这一点,但问题是我无法解决以下代码中的viewholder引用,请帮助我 class ViewAdapter : RecyclerView.Adapter<ViewAdapter.ViewHolder>(){ override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewAdapter.ViewHolder { // return Vi
class ViewAdapter : RecyclerView.Adapter<ViewAdapter.ViewHolder>(){
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewAdapter.ViewHolder {
// return ViewHolder(LayoutInflater.from(parent.context).inflate(R.layout.slider, parent, false))
// }
}
override fun getItemCount(): Int {
TODO("not implemented")
}
override fun onBindViewHolder(holder: ViewAdapter.ViewHolder, position: Int) {
TODO("not implemented")
}
}
您需要在ViewAdapter类中创建一个类ViewHolder 示例代码
class ViewAdapter : RecyclerView.Adapter<ViewAdapter.ViewHolder>() {
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewAdapter.ViewHolder {
// return ViewHolder(LayoutInflater.from(parent.context).inflate(R.layout.slider, parent, false))
// }
}
override fun getItemCount(): Int {
TODO("not implemented")
}
override fun onBindViewHolder(holder: ViewAdapter.ViewHolder, position: Int) {
TODO("not implemented")
}
class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
}
}
您尚未在ViewAdapter中定义ViewHolder类
class ViewHolder(itemView: View): RecyclerView.ViewHolder(itemView) {
}
只需在ViewAdapter中定义ViewHolder类
class ViewHolder(itemView: View): RecyclerView.ViewHolder(itemView) {
}
ViewAdapter是您正在创建的类,因此ViewAdapter.ViewHolder是它的内部类
您需要创建此内部类,如:
class ViewAdapter : RecyclerView.Adapter<ViewAdapter.ViewHolder>(){
...
class ViewHolder(itemView: View) : RecyclerView.ViewHolder(itemView) {
...
}
}
ViewHolder是一个抽象类,您必须提供自己的实现。如果您使用的是基于IntelliJ的IDE,您可以在未解析的视图顶部alt+enter并创建该类。在这种情况下,这就是你需要做的。