add simple backup page for mnemonic

Author: zoedberg

app/src/main/java/com/iriswallet/ui/BackupFragment.kt

@@ -0,0 +1,22 @@
+package com.iriswallet.ui
+
+import android.os.Bundle
+import android.view.View
+import androidx.appcompat.app.AlertDialog
+import com.iriswallet.R
+import com.iriswallet.databinding.FragmentBackupBinding
+import com.iriswallet.utils.AppContainer
+
+class BackupFragment : MainBaseFragment<FragmentBackupBinding>(FragmentBackupBinding::inflate) {
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+        binding.backupShowHideMnemonicBtn.setOnClickListener {
+            AlertDialog.Builder(requireContext())
+                .setMessage(AppContainer.storedMnemonic)
+                .setPositiveButton(getString(R.string.hide_mnemonic)) { _, _ -> }
+                .create()
+                .show()
+        }
+    }
+}

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

@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".ui.BackupFragment">
+
+    <Button
+        android:id="@+id/backupShowHideMnemonicBtn"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:padding="@dimen/medium_size"
+        android:text="@string/show_mnemonic"
+        android:textColor="@color/white"
+        style="@style/green_button"/>
+
+</FrameLayout>

app/src/main/res/menu/main_drawer.xml

@@ -12,6 +12,9 @@
     <item android:id="@+id/settingsFragment"
         android:icon="@drawable/ic_settings"
         android:title="@string/menu_settings" />
+    <item android:id="@+id/backupFragment"
+        android:icon="@drawable/ic_settings"
+        android:title="@string/menu_backup" />
     <item android:id="@+id/helpPageFragment"
         android:icon="@drawable/ic_help"
         android:title="@string/menu_help_page" />

app/src/main/res/navigation/nav_graph.xml

@@ -67,6 +67,9 @@
         <action
             android:id="@+id/action_mainFragment_to_settingsFragment"
             app:destination="@id/settingsFragment" />
+        <action
+            android:id="@+id/action_mainFragment_to_backupFragment"
+            app:destination="@id/backupFragment" />
     </fragment>
     <fragment
         android:id="@+id/helpPageFragment"
@@ -143,4 +146,10 @@
         android:label="@string/settings_title"
         tools:layout="@layout/fragment_settings">
     </fragment>
+    <fragment
+        android:id="@+id/backupFragment"
+        android:name="com.iriswallet.ui.BackupFragment"
+        android:label="@string/backup_title"
+        tools:layout="@layout/fragment_backup">
+    </fragment>
 </navigation>

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

@@ -69,6 +69,7 @@
     <string name="menu_help_page">Help</string>
     <string name="menu_about_page">About</string>
     <string name="menu_settings">Settings</string>
+    <string name="menu_backup">Backup</string>
     <string name="err_configuring_app_auth">Error configuring authentication</string>
     <string name="auth_failed">Authentication failed</string>
     <string name="no_auth_available">Cannot find authentication, enable it in Android
@@ -114,6 +115,7 @@
     <string name="unspent_list_title">Unspent list</string>
     <string name="faucet_title">Faucets</string>
     <string name="settings_title">Settings</string>
+    <string name="backup_title">Backup</string>
     <string name="issue_button">Issue asset</string>
     <string name="main_receive_button">Receive assets</string>
     <string name="main_title">My assets</string>
@@ -185,8 +187,10 @@
     <string name="terms_not_accepted">You cannot proceed without agreeing to the Terms of Use for
         the Iris Wallet. Wallet data will be erased.</string>
     <string name="terms_of_service_link">Terms Of Service</string>
-    <string name="privacy_policy_link" >Privacy Policy</string>
+    <string name="privacy_policy_link">Privacy Policy</string>
     <string name="app_version">App version: %s</string>
     <string name="pending_asset_faucet">Pending asset from faucet. Please wait, it should arrive in
         a few minutes</string>
+    <string name="show_mnemonic">Show mnemonic</string>
+    <string name="hide_mnemonic">Hide mnemonic</string>
 </resources>