Ability to export a single server

Author: amirmahdifard

ChangeLog.txt

@@ -21,6 +21,7 @@ Default Qt Client
 - Fixed language not set at first start
 - Fixed OPUS DTX mode sending too big packets when variable bitrate mode (VBR) was disabled
 Android Client
+- Ability to export each server in to a .tt file separately
 - Broadcast messages are now shown in the chat tab
 - Added the ability to send broadcast messages
 - Redesigned server list dialog to remove the old remove server button and make it to use popup menus, results in a more clear and modern dialog, and fast navigating for screenreader users

Client/TeamTalkAndroid/src/main/java/dk/bearware/gui/ServerListActivity.java

@@ -347,6 +347,11 @@ public boolean onItemLongClick(AdapterView<?> l, View v, int position, long id)
         serverActions.inflate(R.menu.server_actions);
         serverActions.setOnMenuItemClickListener(item -> {
             switch (item.getItemId()) {
+                case R.id.action_exportsrv:
+                    if ((Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) || Permissions.WRITE_EXTERNAL_STORAGE.request(this)) {
+                        exportServer(entry);
+                    }
+                    return true;
                 case R.id.action_editsrv:
                     Intent intent = new Intent(this, ServerEntryActivity.class);
                     startActivityForResult(Utils.putServerEntry(intent, entry).putExtra(POSITION_NAME, position), REQUEST_EDITSERVER);
@@ -788,6 +793,37 @@ private void exportServers() {
         }
     }
 
+    private void exportServer(ServerEntry entry) {
+        File dirPath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
+        if (dirPath.mkdirs() || dirPath.isDirectory()) {
+            final File ttFile = new File(dirPath, entry.servername + "_server.tt");
+            final String filePath = ttFile.getAbsolutePath();
+
+            if (ttFile.exists()) {
+                AlertDialog.Builder alert = new AlertDialog.Builder(this);
+                alert.setMessage(getString(R.string.alert_file_override, filePath));
+                alert.setPositiveButton(android.R.string.yes, (dialog, whichButton) -> {
+                    if (ttFile.delete()) {
+                        int msgId = Utils.saveServers(new Vector<>(Collections.singletonList(entry)), filePath) ?
+                            R.string.server_export_confirmation :
+                            R.string.err_file_write;
+                        Toast.makeText(ServerListActivity.this, getString(msgId, filePath), Toast.LENGTH_LONG).show();
+                    } else {
+                        Toast.makeText(ServerListActivity.this, getString(R.string.err_file_delete, filePath), Toast.LENGTH_LONG).show();
+                    }
+                });
+
+                alert.setNegativeButton(android.R.string.no, null);
+                alert.show();
+            } else {
+                int msgId = Utils.saveServers(new Vector<>(Collections.singletonList(entry)), filePath) ?
+                    R.string.server_export_confirmation :
+                    R.string.err_file_write;
+                Toast.makeText(this, getString(msgId, filePath), Toast.LENGTH_LONG).show();
+            }
+        }
+    }
+
     private ListFragment getListFragment() {
         return (ListFragment) getSupportFragmentManager().findFragmentById(R.id.list_fragment);
     }

Client/TeamTalkAndroid/src/main/res/layout-land/item_serverentry.xml

@@ -1,5 +1,9 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android" >
 
+    <item
+        android:id="@+id/action_exportsrv"
+        android:title="@string/action_exportsrv"/>
+
     <item
         android:id="@+id/action_editsrv"
         android:title="@string/action_editsrv"/>

Client/TeamTalkAndroid/src/main/res/menu/server_actions.xml

@@ -147,6 +147,7 @@
     <string name="action_move">Move Here</string>
     <string name="action_select">Select For Move</string>
     <string name="action_deselect">Deselect For Move</string>
+    <string name="action_exportsrv">Export server</string>
     <string name="action_editsrv">Edit server</string>
     <string name="action_removesrv">Remove server</string>
     <string name="action_upload">Upload File</string>
@@ -228,6 +229,7 @@
     <string name="action_import_serverlist">Import from a .tt File</string>
     <string name="action_export_serverlist">Export server list</string>
     <string name="serverlist_export_confirmation">Server list has been exported to %1$s</string>
+    <string name="server_export_confirmation">Server has been exported to %1$s</string>
 
     <string name="pref_title_server_props">TeamTalk 5 Server Properties</string>
     <string name="pref_title_server_info">Server Information</string>

Client/TeamTalkAndroid/src/main/res/values/strings.xml

@@ -103,7 +103,6 @@
             android:disableDependentsState="true"
             android:persistent="false" />
         <EditTextPreference
-            android:defaultValue="/"
             android:key="channel"
             android:title="@string/pref_title_channel"
             android:selectAllOnFocus="true"