Dark Theme - Bug Fix

Handle correctly the status bar display when the current view controller is presented in a temporary navigation controller.

Riot/ViewController/RiotNavigationController.m

@@ -0,0 +1,45 @@
+/*
+ Copyright 2017 Vector Creations Ltd
+ 
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+ 
+ http://www.apache.org/licenses/LICENSE-2.0
+ 
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+#import "RiotNavigationController.h"
+
+@implementation RiotNavigationController
+
+- (UIStatusBarStyle)preferredStatusBarStyle
+{
+    if (self.topViewController)
+    {
+        // Return the preferred style of the top view controller.
+        return [self.topViewController preferredStatusBarStyle];
+    }
+    
+    // Keep the default UINavigationController style.
+    return [super preferredStatusBarStyle];
+}
+
+- (BOOL)prefersStatusBarHidden
+{
+    if (self.topViewController)
+    {
+        // Retrieve this information from the top view controller.
+        return [self.topViewController prefersStatusBarHidden];
+    }
+    
+    // Keep the default UINavigationController mode.
+    return [super prefersStatusBarHidden];
+}
+
+@end