feat: 优化代码

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

@@ -9,6 +9,7 @@ import android.view.MenuItem
 import android.view.SubMenu
 import androidx.appcompat.widget.PopupMenu
 import androidx.appcompat.widget.SearchView
+import androidx.documentfile.provider.DocumentFile
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.Observer
 import androidx.recyclerview.widget.DiffUtil
@@ -45,7 +46,8 @@ class ReplaceRuleActivity : VMBaseActivity<ReplaceRuleViewModel>(R.layout.activi
     override val viewModel: ReplaceRuleViewModel
         get() = getViewModel(ReplaceRuleViewModel::class.java)
     private val importRecordKey = "replaceRuleRecordKey"
-    private val importSource = 132
+    private val importRequestCode = 132
+    private val exportRequestCode = 65
     private lateinit var adapter: ReplaceRuleAdapter
     private var groups = hashSetOf<String>()
     private var groupMenu: SubMenu? = null
@@ -176,7 +178,7 @@ class ReplaceRuleActivity : VMBaseActivity<ReplaceRuleViewModel>(R.layout.activi
             R.id.menu_del_selection -> viewModel.delSelection(adapter.getSelection())
             R.id.menu_import_source_onLine -> showImportDialog()
             R.id.menu_import_source_local -> FilePicker
-                .selectFile(this, importSource, "text/*", arrayOf("txt", "json"))
+                .selectFile(this, importRequestCode, "text/*", arrayOf("txt", "json"))
         }
         return super.onCompatOptionsItemSelected(item)
     }
@@ -185,7 +187,7 @@ class ReplaceRuleActivity : VMBaseActivity<ReplaceRuleViewModel>(R.layout.activi
         when (item?.itemId) {
             R.id.menu_enable_selection -> viewModel.enableSelection(adapter.getSelection())
             R.id.menu_disable_selection -> viewModel.disableSelection(adapter.getSelection())
-            R.id.menu_export_selection -> viewModel.exportSelection(adapter.getSelection())
+            R.id.menu_export_selection -> FilePicker.selectFolder(this, exportRequestCode)
         }
         return false
     }
@@ -232,15 +234,6 @@ class ReplaceRuleActivity : VMBaseActivity<ReplaceRuleViewModel>(R.layout.activi
         }.show().applyTint()
     }
 
-    override fun onFilePicked(requestCode: Int, currentPath: String) {
-        if (requestCode == importSource) {
-            Snackbar.make(title_bar, R.string.importing, Snackbar.LENGTH_INDEFINITE).show()
-            viewModel.importSource(File(currentPath).readText()) { msg ->
-                title_bar.snackbar(msg)
-            }
-        }
-    }
-
     override fun onQueryTextChange(newText: String?): Boolean {
         observeReplaceRuleData("%$newText%")
         return false
@@ -250,10 +243,25 @@ class ReplaceRuleActivity : VMBaseActivity<ReplaceRuleViewModel>(R.layout.activi
         return false
     }
 
+    override fun onFilePicked(requestCode: Int, currentPath: String) {
+        when (requestCode) {
+            importRequestCode -> {
+                Snackbar.make(title_bar, R.string.importing, Snackbar.LENGTH_INDEFINITE).show()
+                viewModel.importSource(File(currentPath).readText()) { msg ->
+                    title_bar.snackbar(msg)
+                }
+            }
+            exportRequestCode -> viewModel.exportSelection(
+                adapter.getSelection(),
+                File(currentPath)
+            )
+        }
+    }
+
     override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
         super.onActivityResult(requestCode, resultCode, data)
         when (requestCode) {
-            importSource -> if (resultCode == Activity.RESULT_OK) {
+            importRequestCode -> if (resultCode == Activity.RESULT_OK) {
                 data?.data?.let { uri ->
                     try {
                         uri.readText(this)?.let {
@@ -268,6 +276,19 @@ class ReplaceRuleActivity : VMBaseActivity<ReplaceRuleViewModel>(R.layout.activi
                     }
                 }
             }
+            exportRequestCode -> if (resultCode == RESULT_OK) {
+                data?.data?.let { uri ->
+                    if (uri.toString().isContentPath()) {
+                        DocumentFile.fromTreeUri(this, uri)?.let {
+                            viewModel.exportSelection(adapter.getSelection(), it)
+                        }
+                    } else {
+                        uri.path?.let {
+                            viewModel.exportSelection(adapter.getSelection(), File(it))
+                        }
+                    }
+                }
+            }
         }
     }
 

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

@@ -2,6 +2,7 @@ package io.legado.app.ui.replacerule
 
 import android.app.Application
 import android.text.TextUtils
+import androidx.documentfile.provider.DocumentFile
 import io.legado.app.App
 import io.legado.app.R
 import io.legado.app.base.BaseViewModel
@@ -9,10 +10,7 @@ import io.legado.app.data.entities.ReplaceRule
 import io.legado.app.help.http.HttpHelper
 import io.legado.app.help.storage.Backup
 import io.legado.app.help.storage.ImportOldData
-import io.legado.app.utils.FileUtils
-import io.legado.app.utils.GSON
-import io.legado.app.utils.isAbsUrl
-import io.legado.app.utils.splitNotBlank
+import io.legado.app.utils.*
 import org.jetbrains.anko.toast
 import java.io.File
 
@@ -89,12 +87,24 @@ class ReplaceRuleViewModel(application: Application) : BaseViewModel(application
         }
     }
 
-    fun exportSelection(rules: LinkedHashSet<ReplaceRule>) {
+    fun exportSelection(sources: LinkedHashSet<ReplaceRule>, file: File) {
         execute {
-            val json = GSON.toJson(rules)
-            val file =
-                FileUtils.createFileIfNotExist(Backup.exportPath + File.separator + "exportReplaceRule.json")
-            file.writeText(json)
+            val json = GSON.toJson(sources)
+            FileUtils.createFileIfNotExist(file, "exportReplaceRule.json")
+                .writeText(json)
+        }.onSuccess {
+            context.toast("成功导出至\n${Backup.exportPath}")
+        }.onError {
+            context.toast("导出失败\n${it.localizedMessage}")
+        }
+    }
+
+    fun exportSelection(sources: LinkedHashSet<ReplaceRule>, doc: DocumentFile) {
+        execute {
+            val json = GSON.toJson(sources)
+            doc.findFile("exportReplaceRule.json")?.delete()
+            doc.createFile("", "exportReplaceRule.json")
+                ?.writeText(context, json)
         }.onSuccess {
             context.toast("成功导出至\n${Backup.exportPath}")
         }.onError {

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

@@ -83,8 +83,8 @@ class RssSourceViewModel(application: Application) : BaseViewModel(application)
     fun exportSelection(sources: LinkedHashSet<RssSource>, doc: DocumentFile) {
         execute {
             val json = GSON.toJson(sources)
-            doc.findFile("exportBookSource.json")?.delete()
-            doc.createFile("", "exportBookSource.json")
+            doc.findFile("exportRssSource.json")?.delete()
+            doc.createFile("", "exportRssSource.json")
                 ?.writeText(context, json)
         }.onSuccess {
             context.toast("成功导出至\n${Backup.exportPath}")