package cn.flightfeather.thirdapp.view.recyclerview
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import com.chad.library.adapter.base.BaseMultiItemQuickAdapter
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import com.chad.library.adapter.base.entity.AbstractExpandableItem
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import com.chad.library.adapter.base.entity.MultiItemEntity
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/**
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* @author riku
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* Date: 2019/4/18
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* recyclerView的基类adapter
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*/
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abstract class BaseRecyclerAdapter<T> constructor(
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layoutIdMap: Map<Int, Int>,
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sectionLayoutId: Int?,
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mData: List<MySection<T>>
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) : BaseMultiItemQuickAdapter<MySection<T>, BaseCustomViewHolder>(mData) {
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companion object {
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const val SECTION_HEADER_VIEW = 0x00000444
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}
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init {
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sectionLayoutId?.let { addItemType(SECTION_HEADER_VIEW, it) }
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layoutIdMap.forEach {
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addItemType(it.key, it.value)
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}
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}
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override fun onBindViewHolder(holder: BaseCustomViewHolder, position: Int) {
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when (holder.itemViewType) {
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SECTION_HEADER_VIEW -> {
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setFullSpan(holder)
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convertHead(holder, getItem(position - headerLayoutCount))
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}
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else -> super.onBindViewHolder(holder, position)
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}
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}
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override fun onBindViewHolder(
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holder: BaseCustomViewHolder,
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position: Int,
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payloads: MutableList<Any>
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) {
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if (payloads.isEmpty()) {
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super.onBindViewHolder(holder, position, payloads)
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} else {
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convertPartView(holder, getItem(position - headerLayoutCount), payloads)
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}
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}
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protected abstract fun convertHead(holder: BaseCustomViewHolder, item: MySection<T>?)
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//局部刷新
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protected abstract fun convertPartView(holder: BaseCustomViewHolder, item: MySection<T>?, payloads: MutableList<Any>)
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// override fun convertHead(helper: BaseCustomViewHolder?, item: MySection<T>?) {
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// convertListener?.onConvertHead(helper, item)
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// }
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//
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// override fun convert(helper: BaseCustomViewHolder, item: MySection<T>?) {
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// convertListener?.onConvert(helper, item)
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// }
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}
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class MySection<T> : AbstractExpandableItem<MySection<T>>, MultiItemEntity {
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var mItemType: Int = DEFAULT_ITEM_TYPE
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var isHeader: Boolean = false
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var t: T
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var header: String? = null
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var myLevel = 1
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constructor (isHeader: Boolean, header: String?, t: T) {
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this.isHeader = isHeader
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this.header = header
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this.myLevel = 1
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this.mItemType = BaseRecyclerAdapter.SECTION_HEADER_VIEW
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this.t = t
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}
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constructor(t: T, mItemType: Int = DEFAULT_ITEM_TYPE, level: Int = 1) {
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this.mItemType = mItemType
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this.t = t
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this.myLevel = level
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}
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companion object {
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const val DEFAULT_ITEM_TYPE = -1
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/**
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* 将普通的list转化为SectionEntity列表
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*/
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fun <T> convert2Section(list: List<T>?): ArrayList<MySection<T>> {
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val resultList = ArrayList<MySection<T>>()
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list?.forEach {
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resultList.add(MySection(it))
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}
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return resultList
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}
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/**
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* 将SectionEntity列表转化为普通的list
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*/
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fun <T> convert2List(list: List<MySection<T>>?): List<T> {
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val resultList = mutableListOf<T>()
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list?.forEach {
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resultList.add(it.t)
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}
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return resultList
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}
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}
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override fun getItemType(): Int = mItemType
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override fun getLevel(): Int = myLevel
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}
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