added upside down rotation

UI-Iteration3/PLUCdraft/PLUCdraft/LogInViewController.m

@@ -36,6 +36,20 @@ static NSString *PASSWORD = @"what";
 }
 
 
+//allow app to flip to upside down
+-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
+    if (toInterfaceOrientation == UIInterfaceOrientationPortrait)
+        return YES;
+    if (toInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)
+        return YES;
+    if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft)
+        return NO;
+    if (toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)
+        return NO;
+    return NO; // Unknown value
+}
+
+
 
 /*
 #pragma mark - Navigation

UI-Iteration3/PLUCdraft/PLUCdraft/ScanBookViewController.m

@@ -49,6 +49,20 @@ static int BOOK_ID_LENGTH = 14;
     // Dispose of any resources that can be recreated.
 }
 
+//allow app to flip to upside down
+-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
+    if (toInterfaceOrientation == UIInterfaceOrientationPortrait)
+        return YES;
+    if (toInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)
+        return YES;
+    if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft)
+        return NO;
+    if (toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)
+        return NO;
+    return NO; // Unknown value
+}
+
+
 
 #pragma mark - Navigation
 

UI-Iteration3/PLUCdraft/PLUCdraft/SectionTableViewController.m

@@ -51,6 +51,20 @@
     // Dispose of any resources that can be recreated.
 }
 
+//allow app to flip to upside down
+-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
+    if (toInterfaceOrientation == UIInterfaceOrientationPortrait)
+        return YES;
+    if (toInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)
+        return YES;
+    if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft)
+        return NO;
+    if (toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)
+        return NO;
+    return NO; // Unknown value
+}
+
+
 #pragma mark - Table view data source
 
 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {

UI-Iteration3/PLUCdraft/PLUCdraft/SettingsViewController.m

@@ -33,6 +33,19 @@
     // Dispose of any resources that can be recreated.
 }
 
+//allow app to flip to upside down
+-(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation {
+    if (toInterfaceOrientation == UIInterfaceOrientationPortrait)
+        return YES;
+    if (toInterfaceOrientation == UIInterfaceOrientationPortraitUpsideDown)
+        return YES;
+    if (toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft)
+        return NO;
+    if (toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)
+        return NO;
+    return NO; // Unknown value
+}
+
 
 #pragma mark - Navigation