优化

app/src/main/java/io/legado/app/base/adapter/CommonRecyclerAdapter.kt

@@ -53,11 +53,11 @@ abstract class CommonRecyclerAdapter<ITEM>(protected val context: Context) : Rec
     }
 
     fun <DELEGATE : ItemViewDelegate<ITEM>> addItemViewDelegate(viewType: Int, delegate: DELEGATE) {
-        itemDelegates.put(viewType, delegate)
+        itemDelegates[viewType] = delegate
     }
 
     fun <DELEGATE : ItemViewDelegate<ITEM>> addItemViewDelegate(delegate: DELEGATE) {
-        itemDelegates.put(itemDelegates.size, delegate)
+        itemDelegates[itemDelegates.size] = delegate
     }
 
     fun <DELEGATE : ItemViewDelegate<ITEM>> addItemViewDelegates(vararg delegates: DELEGATE) {
@@ -148,26 +148,15 @@ abstract class CommonRecyclerAdapter<ITEM>(protected val context: Context) : Rec
         synchronized(lock) {
             val oldSize = getActualItemCount()
             if (this.items.add(item)) {
-                if (oldSize == 0) {
-                    notifyDataSetChanged()
-                } else {
                 notifyItemInserted(oldSize + getHeaderCount())
             }
         }
     }
-    }
 
     fun addItems(position: Int, newItems: List<ITEM>) {
         synchronized(lock) {
-            val oldSize = getActualItemCount()
-            if (position in 0 until oldSize) {
-                if (if (oldSize == 0) this.items.addAll(newItems) else this.items.addAll(position, newItems)) {
-                    if (oldSize == 0) {
-                        notifyDataSetChanged()
-                    } else {
-                        notifyItemRangeChanged(position + getHeaderCount(), newItems.size)
-                    }
-                }
+            if (this.items.addAll(position, newItems)) {
+                notifyItemRangeInserted(position + getHeaderCount(), newItems.size)
             }
         }
     }
@@ -176,35 +165,34 @@ abstract class CommonRecyclerAdapter<ITEM>(protected val context: Context) : Rec
         synchronized(lock) {
             val oldSize = getActualItemCount()
             if (this.items.addAll(newItems)) {
-                if (oldSize == 0) {
-                    notifyDataSetChanged()
-                } else {
-                    notifyItemRangeChanged(oldSize + getHeaderCount(), newItems.size)
-                }
+                notifyItemRangeInserted(oldSize + getHeaderCount(), newItems.size)
             }
         }
     }
 
     fun removeItem(position: Int) {
         synchronized(lock) {
-            if (this.items.removeAt(position) != null)
+            if (this.items.removeAt(position) != null) {
                 notifyItemRemoved(position + getHeaderCount())
             }
         }
+    }
 
     fun removeItem(item: ITEM) {
         synchronized(lock) {
-            if (this.items.remove(item))
+            if (this.items.remove(item)) {
                 notifyItemRemoved(this.items.indexOf(item) + getHeaderCount())
             }
         }
+    }
 
     fun removeItems(items: List<ITEM>) {
         synchronized(lock) {
-            if (this.items.removeAll(items))
+            if (this.items.removeAll(items)) {
                 notifyDataSetChanged()
             }
         }
+    }
 
     fun swapItem(oldPosition: Int, newPosition: Int) {
         synchronized(lock) {
@@ -234,6 +222,13 @@ abstract class CommonRecyclerAdapter<ITEM>(protected val context: Context) : Rec
         }
     }
 
+    fun clearItems() {
+        synchronized(lock) {
+            this.items.clear()
+            notifyDataSetChanged()
+        }
+    }
+
     fun isEmpty(): Boolean {
         return items.isEmpty()
     }

app/src/main/java/io/legado/app/help/EventMessage.kt

@@ -0,0 +1,50 @@
+package io.legado.app.help
+
+import android.text.TextUtils
+
+import java.util.Arrays
+
+class EventMessage {
+
+    var what: Int?=null
+    var tag: String? = null
+    var obj: Any? = null
+
+    fun isFrom(tag: String): Boolean {
+        return TextUtils.equals(this.tag, tag)
+    }
+
+    fun maybeFrom(vararg tags: String): Boolean {
+        return listOf(*tags).contains(tag)
+    }
+
+    companion object {
+
+        fun obtain(tag: String): EventMessage {
+            val message = EventMessage()
+            message.tag = tag
+            return message
+        }
+
+        fun obtain(what: Int): EventMessage {
+            val message = EventMessage()
+            message.what = what
+            return message
+        }
+
+        fun obtain(what: Int, obj: Any): EventMessage {
+            val message = EventMessage()
+            message.what = what
+            message.obj = obj
+            return message
+        }
+
+        fun obtain(tag: String, obj: Any): EventMessage {
+            val message = EventMessage()
+            message.tag = tag
+            message.obj = obj
+            return message
+        }
+    }
+
+}

app/src/main/java/io/legado/app/ui/sourcedebug/SourceDebugActivity.kt

@@ -3,48 +3,43 @@ package io.legado.app.ui.sourcedebug
 import android.os.Bundle
 import android.view.View
 import androidx.appcompat.widget.SearchView
-import androidx.lifecycle.AndroidViewModel
+import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.LinearLayoutManager
-import io.legado.app.App
 import io.legado.app.R
 import io.legado.app.base.BaseActivity
-import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.BookSource
 import io.legado.app.lib.theme.ATH
 import io.legado.app.lib.theme.ThemeStore
-import io.legado.app.model.WebBook
 import io.legado.app.model.webbook.SourceDebug
 import io.legado.app.utils.getViewModel
-import io.legado.app.utils.isAbsUrl
 import kotlinx.android.synthetic.main.activity_source_debug.*
 import kotlinx.android.synthetic.main.view_title_bar.*
-import kotlinx.coroutines.Dispatchers.IO
-import kotlinx.coroutines.launch
 import org.jetbrains.anko.toast
 
-class SourceDebugActivity : BaseActivity<AndroidViewModel>(), SourceDebug.Callback {
+class SourceDebugActivity : BaseActivity<SourceDebugModel>() {
 
-    override val viewModel: AndroidViewModel
-        get() = getViewModel(AndroidViewModel::class.java)
+    override val viewModel: SourceDebugModel
+        get() = getViewModel(SourceDebugModel::class.java)
     override val layoutID: Int
         get() = R.layout.activity_source_debug
 
     private lateinit var adapter: SourceDebugAdapter
-    private var bookSource: BookSource? = null
 
-    override fun onActivityCreated(viewModel: AndroidViewModel, savedInstanceState: Bundle?) {
-        launch(IO) {
-            intent.getStringExtra("key")?.let {
-                bookSource = App.db.bookSourceDao().findByKey(it)
-            }
-        }
+    override fun onActivityCreated(viewModel: SourceDebugModel, savedInstanceState: Bundle?) {
+        viewModel.init(intent.getStringExtra("key"))
         initRecyclerView()
         initSearchView()
+        viewModel.logs.observe(this, Observer {
+            adapter.addItem(it.obj as String)
+            if (it.what == -1 || it.what == 1000) {
+                rotate_loading.hide()
+            }
+        })
     }
 
     private fun initRecyclerView() {
         ATH.applyEdgeEffectColor(recycler_view)
-        adapter = SourceDebugAdapter()
+        adapter = SourceDebugAdapter(this)
         recycler_view.layoutManager = LinearLayoutManager(this)
         recycler_view.adapter = adapter
         rotate_loading.loadingColor = ThemeStore.accentColor(this)
@@ -69,36 +64,12 @@ class SourceDebugActivity : BaseActivity<AndroidViewModel>(), SourceDebug.Callba
     }
 
     private fun startSearch(key: String) {
-        adapter.logList.clear()
-        adapter.notifyDataSetChanged()
-        bookSource?.let {
-            SourceDebug.debugSource = it.bookSourceUrl
+        adapter.clearItems()
+        viewModel.startDebug(key, {
             rotate_loading.show()
-            if (key.isAbsUrl()) {
-                val book = Book()
-                book.origin = it.bookSourceUrl
-                book.bookUrl = key
-                SourceDebug.printLog(it.bookSourceUrl, 1, "开始访问$key")
-                SourceDebug(WebBook(it), this)
-                    .infoDebug(book)
-            } else {
-                SourceDebug.printLog(it.bookSourceUrl, 1, "开始搜索关键字$key")
-                SourceDebug(WebBook(it), this)
-                    .searchDebug(key)
-            }
-        } ?: toast("未获取到书源")
-    }
-
-    override fun printLog(state: Int, msg: String) {
-        launch {
-            synchronized(this) {
-                adapter.logList.add(msg)
-                adapter.notifyItemChanged(adapter.logList.size - 1)
-                if (state == -1 || state == 1000) {
-                    rotate_loading.hide()
-                }
-            }
-        }
+        }, {
+            toast("未获取到书源")
+        })
     }
 
     override fun onDestroy() {

app/src/main/java/io/legado/app/ui/sourcedebug/SourceDebugAdapter.kt

@@ -1,32 +1,15 @@
 package io.legado.app.ui.sourcedebug
 
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import androidx.recyclerview.widget.RecyclerView
+import android.content.Context
 import io.legado.app.R
+import io.legado.app.base.adapter.ItemViewHolder
+import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import kotlinx.android.synthetic.main.item_source_debug.view.*
 
-class SourceDebugAdapter : RecyclerView.Adapter<SourceDebugAdapter.MyViewHolder>() {
-
-    val logList = arrayListOf<String>()
-
-    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
-        return MyViewHolder(LayoutInflater.from(parent.context).inflate(R.layout.item_source_debug, parent, false))
-    }
-
-    override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
-        holder.bind(logList[position])
-    }
-
-    override fun getItemCount(): Int {
-        return logList.size
-    }
-
-    class MyViewHolder(view: View) : RecyclerView.ViewHolder(view) {
-
-        fun bind(log: String) = with(itemView) {
-            text_view.text = log
+class SourceDebugAdapter(context: Context) : SimpleRecyclerAdapter<String>(context, R.layout.item_source_debug) {
+    override fun convert(holder: ItemViewHolder, item: String, payloads: MutableList<Any>) {
+        holder.itemView.apply {
+            text_view.text = item
         }
     }
 }

app/src/main/java/io/legado/app/ui/sourcedebug/SourceDebugModel.kt

@@ -0,0 +1,51 @@
+package io.legado.app.ui.sourcedebug
+
+import android.app.Application
+import androidx.lifecycle.MutableLiveData
+import io.legado.app.App
+import io.legado.app.base.BaseViewModel
+import io.legado.app.data.entities.Book
+import io.legado.app.data.entities.BookSource
+import io.legado.app.help.EventMessage
+import io.legado.app.model.WebBook
+import io.legado.app.model.webbook.SourceDebug
+import io.legado.app.utils.isAbsUrl
+
+class SourceDebugModel(application: Application) : BaseViewModel(application), SourceDebug.Callback {
+
+    val logs: MutableLiveData<EventMessage> = MutableLiveData()
+
+    private var bookSource: BookSource? = null
+
+    fun init(sourceUrl: String?) {
+        sourceUrl?.let {
+            //优先使用这个，不会抛出异常
+            execute {
+                bookSource = App.db.bookSourceDao().findByKey(sourceUrl)
+            }
+        }
+    }
+
+    fun startDebug(key: String, start: (() -> Unit)? = null, error: (() -> Unit)? = null) {
+        bookSource?.let {
+            start?.let { it() }
+            SourceDebug.debugSource = it.bookSourceUrl
+            if (key.isAbsUrl()) {
+                val book = Book()
+                book.origin = it.bookSourceUrl
+                book.bookUrl = key
+                SourceDebug.printLog(it.bookSourceUrl, 1, "开始访问$key")
+                SourceDebug(WebBook(it), this)
+                    .infoDebug(book)
+            } else {
+                SourceDebug.printLog(it.bookSourceUrl, 1, "开始搜索关键字$key")
+                SourceDebug(WebBook(it), this)
+                    .searchDebug(key)
+            }
+        } ?: error?.let { it() }
+    }
+
+    override fun printLog(state: Int, msg: String) {
+        logs.postValue(EventMessage.obtain(state, msg))
+    }
+}

app/src/main/java/io/legado/app/ui/sourceedit/SourceEditActivity.kt

@@ -81,7 +81,7 @@ class SourceEditActivity : BaseActivity<SourceEditViewModel>(false), KeyboardToo
                     toast("书源名称和URL不能为空")
                 } else {
                     viewModel.save(bookSource) {
-                        startActivity<SourceDebugActivity>(Pair("key", bookSource.bookSourceUrl))
+                        startActivity<SourceDebugActivity>("key" to bookSource.bookSourceUrl)
                     }
                 }
             }