add landscape support for tablet devices

android/app/src/main/AndroidManifest.xml

@@ -27,8 +27,6 @@
             android:exported="true"
             android:hardwareAccelerated="true"
             android:launchMode="singleTask"
-            android:resizeableActivity="false"
-            android:screenOrientation="portrait"
             android:theme="@style/LaunchTheme"
             android:windowSoftInputMode="adjustResize">
 

android/app/src/main/kotlin/com/yubico/authenticator/MainActivity.kt

@@ -16,8 +16,10 @@
 
 package com.yubico.authenticator
 
+import android.annotation.SuppressLint
 import android.content.*
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener
+import android.content.pm.ActivityInfo
 import android.content.pm.PackageManager
 import android.hardware.camera2.CameraCharacteristics
 import android.hardware.camera2.CameraManager
@@ -71,6 +73,12 @@ class MainActivity : FlutterFragmentActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+
+        if (resources.getBoolean(R.bool.portrait_only)) {
+            @SuppressLint("SourceLockedOrientationActivity")
+            requestedOrientation = ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
+        }
+
         WindowCompat.setDecorFitsSystemWindows(window, false)
 
         allowScreenshots(false)

android/app/src/main/res/values-sw533dp/bools.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <bool name="portrait_only">false</bool>
+</resources>

android/app/src/main/res/values-xlarge/bools.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <bool name="portrait_only">false</bool>
+</resources>

android/app/src/main/res/values/bools.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <bool name="portrait_only">true</bool>
+</resources>