优化

app/src/main/java/io/legado/app/data/entities/RssSource.kt

@@ -1,11 +1,13 @@
 package io.legado.app.data.entities
 
 import android.os.Parcelable
+import android.text.TextUtils
 import androidx.room.ColumnInfo
 import androidx.room.Entity
 import androidx.room.Index
 import androidx.room.PrimaryKey
 import com.jayway.jsonpath.DocumentContext
+import io.legado.app.constant.AppPattern
 import io.legado.app.utils.*
 import kotlinx.parcelize.Parcelize
 
@@ -114,6 +116,23 @@ data class RssSource(
         }
     }
 
+    fun addGroup(groups: String): RssSource {
+        sourceGroup?.splitNotBlank(AppPattern.splitGroupRegex)?.toHashSet()?.let {
+            it.addAll(groups.splitNotBlank(AppPattern.splitGroupRegex))
+            sourceGroup = TextUtils.join(",", it)
+        }
+        if (sourceGroup.isNullOrBlank()) sourceGroup = groups
+        return this
+    }
+
+    fun removeGroup(groups: String): RssSource {
+        sourceGroup?.splitNotBlank(AppPattern.splitGroupRegex)?.toHashSet()?.let {
+            it.removeAll(groups.splitNotBlank(AppPattern.splitGroupRegex).toSet())
+            sourceGroup = TextUtils.join(",", it)
+        }
+        return this
+    }
+
     fun sortUrls(): List<Pair<String, String>> = arrayListOf<Pair<String, String>>().apply {
         kotlin.runCatching {
             var a = sortUrl

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

@@ -146,6 +146,8 @@ class RssSourceActivity : VMBaseActivity<ActivityRssSourceBinding, RssSourceView
         when (item?.itemId) {
             R.id.menu_enable_selection -> viewModel.enableSelection(adapter.selection)
             R.id.menu_disable_selection -> viewModel.disableSelection(adapter.selection)
+            R.id.menu_add_group -> selectionAddToGroups()
+            R.id.menu_remove_group -> selectionRemoveFromGroups()
             R.id.menu_top_sel -> viewModel.topSource(*adapter.selection.toTypedArray())
             R.id.menu_bottom_sel -> viewModel.bottomSource(*adapter.selection.toTypedArray())
             R.id.menu_export_selection -> viewModel.saveToFile(adapter.selection) { file ->
@@ -154,6 +156,7 @@ class RssSourceActivity : VMBaseActivity<ActivityRssSourceBinding, RssSourceView
                     fileData = Triple("exportRssSource.json", file, "application/json")
                 }
             }
+
             R.id.menu_share_source -> viewModel.saveToFile(adapter.selection) {
                 share(it)
             }
@@ -213,6 +216,46 @@ class RssSourceActivity : VMBaseActivity<ActivityRssSourceBinding, RssSourceView
         }
     }
 
+    @SuppressLint("InflateParams")
+    private fun selectionAddToGroups() {
+        alert(titleResource = R.string.add_group) {
+            val alertBinding = DialogEditTextBinding.inflate(layoutInflater).apply {
+                editView.setHint(R.string.group_name)
+                editView.setFilterValues(groups.toList())
+                editView.dropDownHeight = 180.dpToPx()
+            }
+            customView { alertBinding.root }
+            okButton {
+                alertBinding.editView.text?.toString()?.let {
+                    if (it.isNotEmpty()) {
+                        viewModel.selectionAddToGroups(adapter.selection, it)
+                    }
+                }
+            }
+            cancelButton()
+        }
+    }
+
+    @SuppressLint("InflateParams")
+    private fun selectionRemoveFromGroups() {
+        alert(titleResource = R.string.remove_group) {
+            val alertBinding = DialogEditTextBinding.inflate(layoutInflater).apply {
+                editView.setHint(R.string.group_name)
+                editView.setFilterValues(groups.toList())
+                editView.dropDownHeight = 180.dpToPx()
+            }
+            customView { alertBinding.root }
+            okButton {
+                alertBinding.editView.text?.toString()?.let {
+                    if (it.isNotEmpty()) {
+                        viewModel.selectionRemoveFromGroups(adapter.selection, it)
+                    }
+                }
+            }
+            cancelButton()
+        }
+    }
+
     override fun selectAll(selectAll: Boolean) {
         if (selectAll) {
             adapter.selectAll()

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

@@ -87,6 +87,24 @@ class RssSourceViewModel(application: Application) : BaseViewModel(application)
         }
     }
 
+    fun selectionAddToGroups(sources: List<RssSource>, groups: String) {
+        execute {
+            val array = Array(sources.size) {
+                sources[it].copy().addGroup(groups)
+            }
+            appDb.rssSourceDao.update(*array)
+        }
+    }
+
+    fun selectionRemoveFromGroups(sources: List<RssSource>, groups: String) {
+        execute {
+            val array = Array(sources.size) {
+                sources[it].copy().removeGroup(groups)
+            }
+            appDb.rssSourceDao.update(*array)
+        }
+    }
+
     fun addGroup(group: String) {
         execute {
             val sources = appDb.rssSourceDao.noGroup