Display export groups selection as dropdown

app/src/main/java/com/beemdevelopment/aegis/ui/fragments/preferences/ImportExportPreferencesFragment.java

@@ -9,7 +9,6 @@ import android.view.View;
 import android.widget.AutoCompleteTextView;
 import android.widget.Button;
 import android.widget.CheckBox;
-import android.widget.LinearLayout;
 import android.widget.TextView;
 import android.widget.Toast;
 
@@ -30,6 +29,7 @@ import com.beemdevelopment.aegis.otp.OtpInfo;
 import com.beemdevelopment.aegis.otp.TotpInfo;
 import com.beemdevelopment.aegis.ui.ImportEntriesActivity;
 import com.beemdevelopment.aegis.ui.TransferEntriesActivity;
+import com.beemdevelopment.aegis.ui.components.DropdownCheckBoxes;
 import com.beemdevelopment.aegis.ui.dialogs.Dialogs;
 import com.beemdevelopment.aegis.ui.tasks.ExportTask;
 import com.beemdevelopment.aegis.ui.tasks.ImportFileTask;
@@ -41,6 +41,7 @@ import com.beemdevelopment.aegis.vault.VaultRepository;
 import com.beemdevelopment.aegis.vault.VaultRepositoryException;
 import com.beemdevelopment.aegis.vault.slots.PasswordSlot;
 import com.beemdevelopment.aegis.vault.slots.SlotException;
+import com.google.android.material.textfield.TextInputLayout;
 
 import java.io.File;
 import java.io.FileOutputStream;
@@ -162,8 +163,8 @@ public class ImportExportPreferencesFragment extends PreferencesFragment {
         CheckBox checkBoxEncrypt = view.findViewById(R.id.checkbox_export_encrypt);
         CheckBox checkBoxAccept = view.findViewById(R.id.checkbox_accept);
         CheckBox checkBoxExportAllGroups = view.findViewById(R.id.export_selected_groups);
-        LinearLayout groupsSelection = view.findViewById(R.id.select_groups);
-        TextView groupsSelectionDescriptor = view.findViewById(R.id.select_groups_hint);
+        TextInputLayout groupsSelectionLayout = view.findViewById(R.id.group_selection_layout);
+        DropdownCheckBoxes groupsSelection = view.findViewById(R.id.group_selection_dropdown);
         TextView passwordInfoText = view.findViewById(R.id.text_separate_password);
         passwordInfoText.setVisibility(checkBoxEncrypt.isChecked() && isBackupPasswordSet ? View.VISIBLE : View.GONE);
         AutoCompleteTextView dropdown = view.findViewById(R.id.dropdown_export_format);
@@ -179,12 +180,13 @@ public class ImportExportPreferencesFragment extends PreferencesFragment {
         TreeSet<String> groups = _vaultManager.getVault().getGroups();
         if (groups.size() > 0) {
             checkBoxExportAllGroups.setVisibility(View.VISIBLE);
-            for (String group: groups) {
-                CheckBox box = new CheckBox(requireContext());
-                box.setText(group);
-                box.setChecked(false);
-                groupsSelection.addView(box);
-            }
+
+            ArrayList<String> groupsArray = new ArrayList<>();
+            groupsArray.add(getString(R.string.no_group));
+            groupsArray.addAll(groups);
+
+            groupsSelection.setCheckedItemsCountTextRes(R.plurals.export_groups_selected_count);
+            groupsSelection.addItems(groupsArray, false);
         }
 
         AlertDialog dialog = new AlertDialog.Builder(requireContext())
@@ -215,8 +217,7 @@ public class ImportExportPreferencesFragment extends PreferencesFragment {
 
             checkBoxExportAllGroups.setOnCheckedChangeListener((button, isChecked) -> {
                 int visibility = isChecked ? View.GONE : View.VISIBLE;
-                groupsSelection.setVisibility(visibility);
-                groupsSelectionDescriptor.setVisibility(visibility);
+                groupsSelectionLayout.setVisibility(visibility);
             });
 
             btnPos.setOnClickListener(v -> {
@@ -303,14 +304,13 @@ public class ImportExportPreferencesFragment extends PreferencesFragment {
         Dialogs.showSecureDialog(dialog);
     }
 
-    private Vault.EntryFilter getVaultEntryFilter(LinearLayout view) {
+    private Vault.EntryFilter getVaultEntryFilter(DropdownCheckBoxes dropdownCheckBoxes) {
         Set<String> groups = new HashSet<>();
-        for (int i=0; i<view.getChildCount(); i++) {
-            CheckBox group = (CheckBox) view.getChildAt(i);
-            if (group.isChecked() && group.getText().toString().equals(getString(R.string.no_group))) {
+        for (String group: dropdownCheckBoxes.getCheckedItems()) {
+            if (group.equals(getString(R.string.no_group))) {
                 groups.add(null);
-            } else if (group.isChecked()) {
-                groups.add(group.getText().toString());
+            } else  {
+                groups.add(group);
             }
         }
 

app/src/main/res/layout/dialog_export.xml

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:orientation="vertical"
     android:paddingBottom="10dp"
     android:paddingTop="10dp">
@@ -76,31 +76,21 @@
         android:checked="true"
         android:visibility="gone" />
 
-    <TextView
-        android:id="@+id/select_groups_hint"
+    <com.google.android.material.textfield.TextInputLayout
+        android:id="@+id/group_selection_layout"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:paddingHorizontal="30dp"
-        android:text="@string/export_choose_groups"
-        android:visibility="gone"/>
+        android:layout_marginStart="25dp"
+        android:layout_marginEnd="25dp"
+        android:layout_marginTop="15dp"
+        android:hint="@string/export_choose_groups"
+        android:visibility="gone"
+        style="?attr/dropdownStyle">
 
-    <ScrollView
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:paddingHorizontal="20dp">
-        <LinearLayout
-            android:id="@+id/select_groups"
+        <com.beemdevelopment.aegis.ui.components.DropdownCheckBoxes
+            android:id="@+id/group_selection_dropdown"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:orientation="vertical"
-            android:paddingHorizontal="20dp"
-            android:visibility="gone">
-
-            <CheckBox
-                android:layout_width="wrap_content"
-                android:layout_height="wrap_content"
-                android:text="@string/no_group"
-                android:checked="false"/>
-        </LinearLayout>
-    </ScrollView>
+            app:allow_filtering="false" />
+    </com.google.android.material.textfield.TextInputLayout>
 </LinearLayout>

app/src/main/res/values/strings.xml

@@ -108,7 +108,11 @@
     <string name="export_format_html">Web page (.HTML)</string>
     <string name="export_format_hint">Export format</string>
     <string name="export_all_groups">Export all groups</string>
-    <string name="export_choose_groups">Select which groups to export:</string>
+    <string name="export_choose_groups">Select which groups to export</string>
+    <plurals name="export_groups_selected_count">
+        <item quantity="one">%d group selected</item>
+        <item quantity="other">%d groups selected</item>
+    </plurals>
     <string name="export_no_groups_selected">No groups selected to export</string>
     <string name="export_html_title" context="The title of an HTML export document">Aegis Authenticator Export</string>