RecyclerView显示所有元素，不需要包含在NestedScrollView中

import android.content.Context
import android.util.AttributeSet
import androidx.recyclerview.widget.RecyclerView

class DynamicHeightRecyclerView(context: Context, attrs: AttributeSet) :
    RecyclerView(context, attrs) {

    override fun onMeasure(widthSpec: Int, heightSpec: Int) {
        super.onMeasure(
            widthSpec,
            MeasureSpec.makeMeasureSpec(Int.MAX_VALUE shr 2, MeasureSpec.AT_MOST)
        )
    }
}