issue while using navigation bar and UITextField - ios

Question

I am facing a weird issue.
I have three UITextField and when keyboard overlaps the screen i am moving up the screen using code:
- (void)textFieldDidBeginEditing:(UITextField *)textField {
if(self.view.frame.size.height==568 && textField==txtVerifyPassword)
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDelegate:self];
[UIView setAnimationDuration:0.5];
[UIView setAnimationBeginsFromCurrentState:YES];
self.view.center = CGPointMake(originalCenter.x,originalCenter.y-100);
}
else if(self.view.frame.size.height==568 && textField==txtPassword)
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDelegate:self];
[UIView setAnimationDuration:0.5];
[UIView setAnimationBeginsFromCurrentState:YES];
self.view.center = CGPointMake(originalCenter.x,originalCenter.y-20);
}
}
and I am moving to original position using:
- (void)textFieldDidEndEditing:(UITextField *)textField{
self.view.center = CGPointMake(originalCenter.x,originalCenter.y);
}
Original Center in DidLoad:
- (void)viewDidLoad {
[super viewDidLoad];
originalCenter = self.view.center;
// Do any additional setup after loading the view.
}
I am adding navigation Bar Programmatically like this:
[self.navigationController setNavigationBarHidden:NO];
self.navigationItem.title = #"Demo";
UIColor *bg = [UIColor colorWithRed:9/255.0f green:161/255.0f blue:12/255.0f alpha:1.0f];
if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_6_1) {
// iOS 6.1 or earlier
self.navigationController.navigationBar.tintColor = bg;
self.navigationController.navigationBar.titleTextAttributes = #{NSForegroundColorAttributeName: [UIColor whiteColor]};
} else {
// iOS 7.0 or later
self.navigationController.navigationBar.barTintColor = bg;
self.navigationController.navigationBar.translucent = NO;
self.navigationController.navigationBar.tintColor = [UIColor whiteColor];
self.navigationController.navigationBar.titleTextAttributes = #{NSForegroundColorAttributeName: [UIColor whiteColor]};
}
When I remove navigation the every thing works great.
But when i add it i am getting two issues:
Extra Black Space at bottom ( View doesn't go back to its original Position)
When I swipe up or down navigation bar hides (don't know why this happens)

Answer 1

Just use TPKeyboardAvoidingScrollView and you are good to go. Its easy and simple to use. you can easily achieve what you are trying to achieve here.
Usage :
For use withUITableViewController classes, drop TPKeyboardAvoidingTableView.m and TPKeyboardAvoidingTableView.h into your project, and make yourUITableView aTPKeyboardAvoidingTableView in the xib.
If you're not using a xib with your controller, i know of no easy way to make itsUITableView a custom class: The path of least resistance is to create a xib for it.
For non-UITableViewControllers, drop theTPKeyboardAvoidingScrollView.m andTPKeyboardAvoidingScrollView.h source files into your project, pop aUIScrollView into your view controller's xib, set the scroll view's class toTPKeyboardAvoidingScrollView, and put all your controls within that scroll view.
You can also create it programmatically, without using a xib - just use theTPKeyboardAvoidingScrollView as your top-level view.