package cn.sinata.xldutils.activity
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import android.os.Bundle
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import androidx.core.content.ContextCompat
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import android.util.TypedValue
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import android.view.Gravity
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import android.view.View
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import android.widget.FrameLayout
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import android.widget.TextView
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import androidx.recyclerview.widget.LinearLayoutManager
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import androidx.recyclerview.widget.RecyclerView
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import cn.sinata.xldutils.R
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import cn.sinata.xldutils.adapter.HFRecyclerAdapter
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import cn.sinata.xldutils.sysErr
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import cn.sinata.xldutils.view.SwipeRefreshRecyclerLayout
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import com.github.zackratos.ultimatebar.UltimateBar
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import com.yqritc.recyclerviewflexibledivider.HorizontalDividerItemDecoration
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import org.jetbrains.anko.backgroundColorResource
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import org.jetbrains.anko.find
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import org.jetbrains.anko.textColor
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import org.jetbrains.anko.wrapContent
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import kotlin.properties.Delegates
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/**
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* recyclerView 的activity 。
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*/
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abstract class RecyclerActivity : TitleActivity() {
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val mSwipeRefreshLayout by lazy {
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find<SwipeRefreshRecyclerLayout>(R.id.swipeRefreshLayout)
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}
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protected open var rootFl by Delegates.notNull<FrameLayout>()
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private var emptyView: TextView? = null
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protected var adapter : RecyclerView.Adapter<*>? = null
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protected var page = 1
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/**
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* 适配器
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*/
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protected abstract fun adapter():RecyclerView.Adapter<*>
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abstract fun initView()
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/**
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* layoutManager 默认LinearLayoutManager
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*/
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protected open fun layoutManager():RecyclerView.LayoutManager = LinearLayoutManager(this)
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/**
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* 模式。默认上下拉均支持
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*/
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protected open fun mode():SwipeRefreshRecyclerLayout.Mode = SwipeRefreshRecyclerLayout.Mode.Both
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/**
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* 下拉刷新
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*/
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protected open fun pullDownRefresh(){}
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/**
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* 上拉更多。
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*/
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protected open fun loadMore(){}
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override fun onCreate(savedInstanceState: Bundle?) {
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super.onCreate(savedInstanceState)
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setContentView(R.layout.base_recyclerview_layout)
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titleBar.setTitleColor(R.color.textColor)
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titleBar.backgroundColorResource = R.color.transparent
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titleBar.leftView.setCompoundDrawablesWithIntrinsicBounds(R.mipmap.back,0,0,0)
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UltimateBar.with(this)
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.statusDark(true)
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.create().immersionBar() //沉浸状态栏
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rootFl = find(R.id.rootFl)
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mSwipeRefreshLayout.setLayoutManager(layoutManager())
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mSwipeRefreshLayout.setMode(mode())
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mSwipeRefreshLayout.isRefreshing = false
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adapter = adapter()
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mSwipeRefreshLayout.setAdapter(adapter)
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mSwipeRefreshLayout.setOnRefreshListener(object :SwipeRefreshRecyclerLayout.OnRefreshListener{
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override fun onRefresh() {
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pullDownRefresh()
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}
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override fun onLoadMore() {
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sysErr("-----------onLoadMore--->")
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loadMore()
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}
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})
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initView()
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}
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/**
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* 水平分割线，默认1px，颜色为dividing_line_color
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*/
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protected fun addItemDecoration(colorId:Int = R.color.dividing_line_color, size:Int=1){
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val item = HorizontalDividerItemDecoration.Builder(this)
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.size(size)
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.color(ContextCompat.getColor(this,colorId))
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.build()
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addItemDecoration(item)
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}
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protected fun addItemDecoration(itemDecoration: RecyclerView.ItemDecoration){
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mSwipeRefreshLayout.addItemDecoration(itemDecoration)
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}
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/**
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* 可要可不要。可以直接在需要的地方用里面那句。
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*/
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fun setRefresh(refresh: Boolean) {
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mSwipeRefreshLayout.isRefreshing = refresh
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}
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private val observer:RecyclerView.AdapterDataObserver = object :RecyclerView.AdapterDataObserver(){
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override fun onChanged() {
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super.onChanged()
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toggleEmptyView()
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}
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}
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private fun toggleEmptyView() {
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var count = adapter!!.itemCount
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if (adapter is HFRecyclerAdapter<*>) {
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count = (adapter as HFRecyclerAdapter<*>).getDataItemCount()
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}
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if (emptyView != null) {
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if (count > 0) {
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emptyView!!.visibility = View.GONE
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} else {
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emptyView!!.visibility = View.VISIBLE
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}
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}
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}
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protected fun addEmptyView(text:String,leftRes:Int=0,topRes:Int=0,rightRes:Int=0,bottomRes:Int=0) {
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if (emptyView == null) {
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emptyView = TextView(this)
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val lp = FrameLayout.LayoutParams(wrapContent, wrapContent)
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lp.gravity = Gravity.CENTER
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emptyView!!.layoutParams = lp
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emptyView!!.gravity = Gravity.CENTER
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emptyView!!.textColor = ContextCompat.getColor(this,R.color.textColor99)
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emptyView!!.setTextSize(TypedValue.COMPLEX_UNIT_SP,16f)
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emptyView!!.setCompoundDrawablesWithIntrinsicBounds(leftRes,topRes,rightRes,bottomRes)
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rootFl.addView(emptyView,0)
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if (adapter != null) {
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adapter!!.registerAdapterDataObserver(observer)
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toggleEmptyView()
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}
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}
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emptyView!!.text = text
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}
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override fun onDestroy() {
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try {
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adapter!!.unregisterAdapterDataObserver(observer)
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} catch (e: Exception) {
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// e.printStackTrace()
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}
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//同步置空view
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emptyView = null
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super.onDestroy()
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}
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}
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