增加离线地图下载流程

app/src/main/java/com/navinfo/omqs/ui/other/BaseRecyclerViewAdapter.kt

@@ -1,6 +1,7 @@
 package com.navinfo.omqs.ui.other
 
 import android.view.LayoutInflater
+import android.view.View.OnClickListener
 import android.view.ViewGroup
 import androidx.databinding.DataBindingUtil
 import androidx.recyclerview.widget.RecyclerView
@@ -10,23 +11,51 @@ import androidx.recyclerview.widget.RecyclerView
  */
 abstract class BaseRecyclerViewAdapter<T>(var data: List<T> = listOf()) :
     RecyclerView.Adapter<BaseViewHolder>() {
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BaseViewHolder {
-        return BaseViewHolder(
-            DataBindingUtil.inflate(
-                LayoutInflater.from(parent.context),
-                viewType,
-                parent,
-                false
-            )
-        )
-    }
+    //    private var recyclerView: RecyclerView? = null
+//    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BaseViewHolder {
+//
+//
+//
+//        return BaseViewHolder(
+//            DataBindingUtil.inflate(
+//                LayoutInflater.from(parent.context),
+//                viewType,
+//                parent,
+//                false
+//            )
+//        )
+//    }
+
 
     override fun getItemCount(): Int {
         return data.size
     }
 
-    fun refreshData(newData:List<T>){
+    fun refreshData(newData: List<T>) {
         this.data = newData
         this.notifyDataSetChanged()
     }
+
+
+    override fun onViewAttachedToWindow(holder: BaseViewHolder) {
+        super.onViewAttachedToWindow(holder)
+        holder.onStart()
+    }
+
+    override fun onViewDetachedFromWindow(holder: BaseViewHolder) {
+        super.onViewDetachedFromWindow(holder)
+        holder.apply {
+            onStop()
+        }
+    }
+//
+//    override fun onAttachedToRecyclerView(recyclerView: RecyclerView) {
+//        super.onAttachedToRecyclerView(recyclerView)
+//        this.recyclerView = recyclerView
+//    }
+//
+//    override fun onDetachedFromRecyclerView(recyclerView: RecyclerView) {
+//        super.onDetachedFromRecyclerView(recyclerView)
+//        this.recyclerView = null
+//    }
 }

app/src/main/java/com/navinfo/omqs/ui/other/BaseViewHolder.kt

@@ -1,11 +1,54 @@
 package com.navinfo.omqs.ui.other
 
-import androidx.databinding.ViewDataBinding
+import android.view.View
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleOwner
+import androidx.lifecycle.LifecycleRegistry
 import androidx.recyclerview.widget.RecyclerView
+import androidx.viewbinding.ViewBinding
 
 /**
  * dataBinding viewHolder 基类
+ * LifecycleRegistry 这是一个生命周期注册器，继承自 Lifecycle，LifecycleOwner 通过这个类来分发生命周期事件，并在 getLifecycle() 中返回
  */
-open class BaseViewHolder(var dataBinding: ViewDataBinding) :
-    RecyclerView.ViewHolder(dataBinding.root) {
+open class BaseViewHolder(val viewBinding: ViewBinding) :
+    RecyclerView.ViewHolder(viewBinding.root), LifecycleOwner {
+    private val lifecycleRegistry = LifecycleRegistry(this)
+
+    init {
+//        dataBinding.lifecycleOwner = this
+        lifecycleRegistry.currentState = Lifecycle.State.INITIALIZED
+        lifecycleRegistry.currentState = Lifecycle.State.CREATED
+        itemView.addOnAttachStateChangeListener(object : View.OnAttachStateChangeListener {
+            // View onDetached 的时候回调 onDestroy()
+            override fun onViewDetachedFromWindow(v: View) {
+                itemView.removeOnAttachStateChangeListener(this)
+                onDestroy()
+            }
+
+            // View onAttached 的时候回调 onCreate()
+            override fun onViewAttachedToWindow(v: View) {
+                onStart()
+            }
+        })
+    }
+
+    fun onStart() {
+        lifecycleRegistry.currentState = Lifecycle.State.STARTED     //
+        lifecycleRegistry.currentState = Lifecycle.State.RESUMED     //   ON_RESUME EVENT
+    }
+
+    fun onStop() {
+        lifecycleRegistry.currentState = Lifecycle.State.STARTED    //
+        lifecycleRegistry.currentState = Lifecycle.State.CREATED    //     ON_STOP EVENT
+    }
+
+    fun onDestroy() {
+        lifecycleRegistry.currentState = Lifecycle.State.DESTROYED   ///  ON_DESTROY EVENT
+    }
+
+
+    override fun getLifecycle(): Lifecycle {
+        return lifecycleRegistry
+    }
 }