core_layout_more_list_3
    image.png
    core_layout_more_list_2
    image.png

    1. class MainActivity : AppCompatActivity() {
    2.     private lateinit var popWindow: PopWindowManager
    3.     override fun onCreate(savedInstanceState: Bundle?) {
    4.         super.onCreate(savedInstanceState)
    5.         setContentView(R.layout.activity_main)
    7.         initView()
    8.     }
    10.     private var oneIndex = 0
    11.     private var oneData: MoreListBean? = null
    12.     private var twoIndex = 0
    13.     private var twoData: MoreListBean? = null
    14.     private var treeIndex = 0
    15.     private var treeData: MoreListBean? = null
    17.     private fun initView() {
    18.         val zoneView = LayoutInflater.from(this).inflate(R.layout.core_layout_more_list_3, null, false)
    19.         popWindow = PopWindowManager(this, zoneView, From.TOP, 300)
    20.         val listViewOne = zoneView.findViewById<RecyclerView>(R.id.more_list_one)
    21.         val listViewTwo = zoneView.findViewById<RecyclerView>(R.id.more_list_two)
    22.         val listViewTree = zoneView.findViewById<RecyclerView>(R.id.more_list_tree)
    23.         listViewOne.layoutManager = LinearLayoutManager(this)
    24.         listViewTwo.layoutManager = LinearLayoutManager(this)
    25.         listViewTree.layoutManager = LinearLayoutManager(this)
    26.         val oneAdapter = MoreListAdapter(this, TYPE_One, true)
    27.         val twoAdapter = MoreListAdapter(this, TYPE_Two, true)
    28.         val treeAdapter = MoreListAdapter(this, TYPE_Tree, true)
    29.         listViewOne.adapter = oneAdapter
    30.         listViewTwo.adapter = twoAdapter
    31.         listViewTree.adapter = treeAdapter
    32.         oneAdapter.setMoreListListener { i, data ->
    33.             oneIndex = i
    34.             oneData = data
    35.             twoIndex = 0
    36.             twoData = null
    37.             treeIndex = 0
    38.             treeData = null
    39.             twoAdapter.clear()
    40.             treeAdapter.clear()
    42.             // 获取网络数据
    43.             // 设置第二级的数据
    44.             if (data.title != "全部") {
    45.                 val datas = getTwoData(data.title)
    46.                 datas.add(0, MoreListBean("全部"))
    47.                 twoAdapter.setData(datas)
    48.             }
    49.         }
    50.         twoAdapter.setMoreListListener { i, data ->
    51.             twoIndex = i
    52.             twoData = data
    53.             treeIndex = 0
    54.             treeData = null
    55.             treeAdapter.clear()
    57.             // 获取网络数据
    58.             // 设置第三级的数据
    59.             if (data.title != "全部") treeAdapter.setData(getTreeData(data.title))
    60.         }
    61.         treeAdapter.setMoreListListener { i, data ->
    62.             treeIndex = i
    63.             treeData = data
    65.             // 获取网络数据
    66.         }
    67.         // 设置第一级的数据
    68.         oneAdapter.setData(getOneData().apply {
    69.             add(0, MoreListBean("全部"))
    70.         })
    72.         tv.setOnClickListener {
    73.             oneAdapter.setCurrent(oneIndex)
    74.             twoAdapter.setCurrent(twoIndex)
    75.             treeAdapter.setCurrent(treeIndex)
    76.             popWindow.setAnchorView(it)
    77.             popWindow.show()
    78.         }
    79.     }
    81.     private fun getOneData(): ArrayList<MoreListBean> {
    82.         return ArrayList<MoreListBean>().apply {
    83.             repeat(10) {
    84.                 add(MoreListBean("第一级${it}"))
    85.             }
    86.         }
    87.     }
    89.     private fun getTwoData(titie: String): ArrayList<MoreListBean> {
    90.         return ArrayList<MoreListBean>().apply {
    91.             repeat(10) {
    92.                 add(MoreListBean("第二级${titie}-${it}"))
    93.             }
    94.         }
    95.     }
    97.     private fun getTreeData(title: String): ArrayList<MoreListBean> {
    98.         return ArrayList<MoreListBean>().apply {
    99.             repeat(10) {
    100.                 add(MoreListBean("第三级${title}-${it}"))
    101.             }
    102.         }
    103.     }
    104. }