订阅源和替换规则添加滑动选择

app/src/main/java/io/legado/app/ui/replacerule/ReplaceRuleActivity.kt

@@ -31,6 +31,7 @@ import io.legado.app.ui.filechooser.FileChooserDialog
 import io.legado.app.ui.filechooser.FilePicker
 import io.legado.app.ui.replacerule.edit.ReplaceEditDialog
 import io.legado.app.ui.widget.SelectActionBar
+import io.legado.app.ui.widget.recycler.DragSelectTouchHelper
 import io.legado.app.ui.widget.recycler.VerticalDivider
 import io.legado.app.ui.widget.text.AutoCompleteTextView
 import io.legado.app.utils.*
@@ -86,6 +87,13 @@ class ReplaceRuleActivity : VMBaseActivity<ReplaceRuleViewModel>(R.layout.activi
         val itemTouchCallback = ItemTouchCallback()
         itemTouchCallback.onItemTouchCallbackListener = adapter
         itemTouchCallback.isCanDrag = true
+        val dragSelectTouchHelper: DragSelectTouchHelper =
+            DragSelectTouchHelper(adapter.initDragSelectTouchHelperCallback()).setSlideArea(16, 50)
+        dragSelectTouchHelper.attachToRecyclerView(recycler_view)
+        // When this page is opened, it is in selection mode
+        dragSelectTouchHelper.activeSlideSelect()
+
+        // Note: need judge selection first, so add ItemTouchHelper after it.
         ItemTouchHelper(itemTouchCallback).attachToRecyclerView(recycler_view)
     }
 

app/src/main/java/io/legado/app/ui/replacerule/ReplaceRuleAdapter.kt

@@ -12,6 +12,7 @@ import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import io.legado.app.data.entities.ReplaceRule
 import io.legado.app.help.ItemTouchCallback
 import io.legado.app.lib.theme.backgroundColor
+import io.legado.app.ui.widget.recycler.DragSelectTouchHelper
 import kotlinx.android.synthetic.main.item_replace_rule.view.*
 import org.jetbrains.anko.sdk27.listeners.onClick
 import java.util.*
@@ -155,6 +156,32 @@ class ReplaceRuleAdapter(context: Context, var callBack: CallBack) :
         }
     }
 
+    fun initDragSelectTouchHelperCallback(): DragSelectTouchHelper.Callback {
+        return object : DragSelectTouchHelper.AdvanceCallback<ReplaceRule>(Mode.ToggleAndReverse) {
+            override fun currentSelectedId(): MutableSet<ReplaceRule> {
+                return selected
+            }
+
+            override fun getItemId(position: Int): ReplaceRule {
+                return getItem(position)!!
+            }
+
+            override fun updateSelectState(position: Int, isSelected: Boolean): Boolean {
+                getItem(position)?.let {
+                    if (isSelected) {
+                        selected.add(it)
+                    } else {
+                        selected.remove(it)
+                    }
+                    notifyItemChanged(position, bundleOf(Pair("selected", null)))
+                    callBack.upCountView()
+                    return true
+                }
+                return false
+            }
+        }
+    }
+
     interface CallBack {
         fun update(vararg rule: ReplaceRule)
         fun delete(rule: ReplaceRule)

app/src/main/java/io/legado/app/ui/rss/source/manage/DiffCallBack.kt

@@ -1,5 +1,6 @@
 package io.legado.app.ui.rss.source.manage
 
+import android.os.Bundle
 import androidx.recyclerview.widget.DiffUtil
 import io.legado.app.data.entities.RssSource
 
@@ -33,10 +34,19 @@ class DiffCallBack(
     override fun getChangePayload(oldItemPosition: Int, newItemPosition: Int): Any? {
         val oldItem = oldItems[oldItemPosition]
         val newItem = newItems[newItemPosition]
-        return when {
+        val payload = Bundle()
-            oldItem.sourceName == newItem.sourceName
+        if (oldItem.sourceName != newItem.sourceName) {
-                    && oldItem.enabled != newItem.enabled -> 2
+            payload.putString("name", newItem.sourceName)
-            else -> null
         }
+        if (oldItem.sourceGroup != newItem.sourceGroup) {
+            payload.putString("group", newItem.sourceGroup)
+        }
+        if (oldItem.enabled != newItem.enabled) {
+            payload.putBoolean("enabled", newItem.enabled)
+        }
+        if (payload.isEmpty) {
+            return null
+        }
+        return payload
     }
 }

app/src/main/java/io/legado/app/ui/rss/source/manage/RssSourceActivity.kt

@@ -30,6 +30,7 @@ import io.legado.app.ui.filechooser.FilePicker
 import io.legado.app.ui.qrcode.QrCodeActivity
 import io.legado.app.ui.rss.source.edit.RssSourceEditActivity
 import io.legado.app.ui.widget.SelectActionBar
+import io.legado.app.ui.widget.recycler.DragSelectTouchHelper
 import io.legado.app.ui.widget.recycler.VerticalDivider
 import io.legado.app.ui.widget.text.AutoCompleteTextView
 import io.legado.app.utils.*
@@ -116,6 +117,13 @@ class RssSourceActivity : VMBaseActivity<RssSourceViewModel>(R.layout.activity_r
         val itemTouchCallback = ItemTouchCallback()
         itemTouchCallback.onItemTouchCallbackListener = adapter
         itemTouchCallback.isCanDrag = true
+        val dragSelectTouchHelper: DragSelectTouchHelper =
+            DragSelectTouchHelper(adapter.initDragSelectTouchHelperCallback()).setSlideArea(16, 50)
+        dragSelectTouchHelper.attachToRecyclerView(recycler_view)
+        // When this page is opened, it is in selection mode
+        dragSelectTouchHelper.activeSlideSelect()
+
+        // Note: need judge selection first, so add ItemTouchHelper after it.
         ItemTouchHelper(itemTouchCallback).attachToRecyclerView(recycler_view)
     }
 

app/src/main/java/io/legado/app/ui/rss/source/manage/RssSourceAdapter.kt

@@ -1,8 +1,10 @@
 package io.legado.app.ui.rss.source.manage
 
 import android.content.Context
+import android.os.Bundle
 import android.view.View
 import android.widget.PopupMenu
+import androidx.core.os.bundleOf
 import androidx.recyclerview.widget.RecyclerView
 import io.legado.app.R
 import io.legado.app.base.adapter.ItemViewHolder
@@ -10,6 +12,7 @@ import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import io.legado.app.data.entities.RssSource
 import io.legado.app.help.ItemTouchCallback
 import io.legado.app.lib.theme.backgroundColor
+import io.legado.app.ui.widget.recycler.DragSelectTouchHelper
 import kotlinx.android.synthetic.main.item_rss_source.view.*
 import org.jetbrains.anko.sdk27.listeners.onClick
 import java.util.*
@@ -24,7 +27,7 @@ class RssSourceAdapter(context: Context, val callBack: CallBack) :
         getItems().forEach {
             selected.add(it)
         }
-        notifyItemRangeChanged(0, itemCount, 1)
+        notifyItemRangeChanged(0, itemCount, bundleOf(Pair("selected", null)))
         callBack.upCountView()
     }
 
@@ -36,7 +39,7 @@ class RssSourceAdapter(context: Context, val callBack: CallBack) :
                 selected.add(it)
             }
         }
-        notifyItemRangeChanged(0, itemCount, 1)
+        notifyItemRangeChanged(0, itemCount, bundleOf(Pair("selected", null)))
         callBack.upCountView()
     }
 
@@ -52,7 +55,8 @@ class RssSourceAdapter(context: Context, val callBack: CallBack) :
 
     override fun convert(holder: ItemViewHolder, item: RssSource, payloads: MutableList<Any>) {
         with(holder.itemView) {
-            if (payloads.isEmpty()) {
+            val bundle = payloads.getOrNull(0) as? Bundle
+            if (bundle == null) {
                 this.setBackgroundColor(context.backgroundColor)
                 if (item.sourceGroup.isNullOrEmpty()) {
                     cb_source.text = item.sourceName
@@ -63,9 +67,18 @@ class RssSourceAdapter(context: Context, val callBack: CallBack) :
                 swt_enabled.isChecked = item.enabled
                 cb_source.isChecked = selected.contains(item)
             } else {
-                when (payloads[0]) {
+                bundle.keySet().map {
-                    1 -> cb_source.isChecked = selected.contains(item)
+                    when (it) {
-                    2 -> swt_enabled.isChecked = item.enabled
+                        "name", "group" ->
+                            if (item.sourceGroup.isNullOrEmpty()) {
+                                cb_source.text = item.sourceName
+                            } else {
+                                cb_source.text =
+                                    String.format("%s (%s)", item.sourceName, item.sourceGroup)
+                            }
+                        "selected" -> cb_source.isChecked = selected.contains(item)
+                        "enabled" -> swt_enabled.isChecked = item.enabled
+                    }
                 }
             }
         }
@@ -147,6 +160,32 @@ class RssSourceAdapter(context: Context, val callBack: CallBack) :
         }
     }
 
+    fun initDragSelectTouchHelperCallback(): DragSelectTouchHelper.Callback {
+        return object : DragSelectTouchHelper.AdvanceCallback<RssSource>(Mode.ToggleAndReverse) {
+            override fun currentSelectedId(): MutableSet<RssSource> {
+                return selected
+            }
+
+            override fun getItemId(position: Int): RssSource {
+                return getItem(position)!!
+            }
+
+            override fun updateSelectState(position: Int, isSelected: Boolean): Boolean {
+                getItem(position)?.let {
+                    if (isSelected) {
+                        selected.add(it)
+                    } else {
+                        selected.remove(it)
+                    }
+                    notifyItemChanged(position, bundleOf(Pair("selected", null)))
+                    callBack.upCountView()
+                    return true
+                }
+                return false
+            }
+        }
+    }
+
     interface CallBack {
         fun del(source: RssSource)
         fun edit(source: RssSource)