优化

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

@@ -93,7 +93,8 @@ class RssSourceActivity : VMBaseActivity<ActivityRssSourceBinding, RssSourceView
             R.id.menu_import_source_qr -> startActivityForResult<QrCodeActivity>(qrRequestCode)
             R.id.menu_group_manage -> GroupManageDialog()
                 .show(supportFragmentManager, "rssGroupManage")
-            R.id.menu_share_source -> {
+            R.id.menu_share_source -> viewModel.shareSelection(adapter.getSelection()) {
+                startActivity(Intent.createChooser(it, getString(R.string.share_selected_source)))
             }
             R.id.menu_help -> showHelp()
             else -> if (item.groupId == R.id.source_group) {

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

@@ -1,15 +1,15 @@
 package io.legado.app.ui.rss.source.manage
 
 import android.app.Application
+import android.content.Intent
 import android.text.TextUtils
+import androidx.core.content.FileProvider
 import androidx.documentfile.provider.DocumentFile
 import io.legado.app.App
+import io.legado.app.BuildConfig
 import io.legado.app.base.BaseViewModel
 import io.legado.app.data.entities.RssSource
-import io.legado.app.utils.FileUtils
-import io.legado.app.utils.GSON
-import io.legado.app.utils.splitNotBlank
-import io.legado.app.utils.writeText
+import io.legado.app.utils.*
 import org.jetbrains.anko.toast
 import java.io.File
 
@@ -104,6 +104,28 @@ class RssSourceViewModel(application: Application) : BaseViewModel(application)
         }
     }
 
+    fun shareSelection(sources: List<RssSource>, success: ((intent: Intent) -> Unit)) {
+        execute {
+            val intent = Intent(Intent.ACTION_SEND)
+            val file = FileUtils.createFileWithReplace("${context.filesDir}/shareRssSource.json")
+            file.writeText(GSON.toJson(sources))
+            val fileUri = FileProvider.getUriForFile(
+                context,
+                BuildConfig.APPLICATION_ID + ".fileProvider",
+                file
+            )
+            intent.type = "text/*"
+            intent.putExtra(Intent.EXTRA_STREAM, fileUri)
+            intent.flags = Intent.FLAG_GRANT_READ_URI_PERMISSION
+            intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+            intent
+        }.onSuccess {
+            success.invoke(it)
+        }.onError {
+            toast(it.msg)
+        }
+    }
+
     fun addGroup(group: String) {
         execute {
             val sources = App.db.rssSourceDao().noGroup