keyboard hides textfield for different orientation in ipad - objective-c

Question

In my iPad application, I have few textView and textField's. When I click on textField, the keyboard covers the textField. So I am implementing the below code to move the textview up. But on rotation to portraitUpsideDown its not working fine. It slides the screen down in opposite direction. So how do I solve this problem??
-(void) animateTextField: (UITextView *) textField up: (BOOL) up
{
int txtPosition = (textField.frame.origin.y - 540);
const int movementDistance = (txtPosition < 0 ? 0 : txtPosition); // tweak as needed
const float movementDuration = 0.3f; // tweak as needed
int movement = (up ? -movementDistance : movementDistance);
[UIView beginAnimations: #"anim" context: nil];
[UIView setAnimationBeginsFromCurrentState: YES];
[UIView setAnimationDuration: movementDuration];
self.view.frame = CGRectOffset(self.view.frame, 0, movement);
[UIView commitAnimations];
}
-(void)textViewDidBeginEditing:(UITextView *)textField
{
[self animateTextField: textField up: YES];
}
-(void)textViewDidEndEditing:(UITextView *)textField
{
[self animateTextField: textField up: NO];
}
-(BOOL)textFieldShouldReturn:(UITextView *)theTextField
{
[theTextField resignFirstResponder];
return YES;
}

Answer 1

This solution is for iPhone, but it considers both orientations.
You can adapt a bit and voilá:
http://cocoawithlove.com/2008/10/sliding-uitextfields-around-to-avoid.html

Answer 2

Crazy,
Just add another function:
- (void) animateTextView: (UITextView*) textView up: (BOOL) up
{
const int movementDistance = 80; // tweak as needed
const float movementDuration = 0.3f; // tweak as needed
int movement = (up ? -movementDistance : movementDistance);
[UIView beginAnimations: #"anim" context: nil];
[UIView setAnimationBeginsFromCurrentState: YES];
[UIView setAnimationDuration: movementDuration];
self.view.frame = CGRectOffset(self.view.frame, 0, movement);
[UIView commitAnimations];
}
Then call it like:
- (void)textViewDidBeginEditing:(UITextView *)textView {
[self animateTextView: textView up: YES];
}
- (void)textViewDidEndEditing:(UITextView *)textView {
[self animateTextView: textView up: NO];
}

Answer 3

If your method like this.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
Try this. I don't know exactly. But I am trying to help you. May be x and y coordinate cannot be changed in any orientation. so try this.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
if(interfaceOrientation=UIInterfaceOrienationPotraitUpsideDown){
//Declare txtPos globally...
txtPos=(textField.frame.origin.y + 540);
}
if(interfaceOrientation=UIInterfaceOrienationPotrait)
{
txtPos=(textField.frame.origin.y - 540);
}
return(YES);
}
in animate method.
assign textPos to txtPosition variable..

Answer 4

You should use keyboard will show and will hide notification to capture keyboard event and adjust your view accordingly.
- (void)dealloc {
[[NSNotificationCenter defaultCenter] removeObserver:self];
}
- (void)viewDidLoad {
[super viewDidLoad];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardWillHide:) name:UIKeyboardDidHideNotification object:nil];
}
- (void)keyboardWillShow:(NSNotification *)notification {
CGRect keyboardFrame = [notification.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
CGFloat keyboardHeight = CGRectGetHeight(keyboardFrame);
CGFloat animationDuration = [notification.userInfo[UIKeyboardAnimationDurationUserInfoKey] floatValue];
UIViewAnimationCurve animationCurve = [notification.userInfo[UIKeyboardAnimationCurveUserInfoKey] integerValue];
UIViewAnimationOptions animationOption = animationCurve << 16;
[UIView animateWithDuration:animationDuration delay:0 options:animationOption animations:^{
// adjust height using keyboardHeight
} completion:^(BOOL finished) {
}];
}
- (void)keyboardWillHide:(NSNotification *)notification {
CGRect keyboardFrame = [notification.userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
CGFloat keyboardHeight = CGRectGetHeight(keyboardFrame);
CGFloat animationDuration = [notification.userInfo[UIKeyboardAnimationDurationUserInfoKey] floatValue];
UIViewAnimationCurve animationCurve = [notification.userInfo[UIKeyboardAnimationCurveUserInfoKey] integerValue];
UIViewAnimationOptions animationOption = animationCurve << 16;
[UIView animateWithDuration:animationDuration delay:0 options:animationOption animations:^{
// adjust height using keyboardHeight
} completion:^(BOOL finished) {
}];
}
This blog post explains this in detail
http://charlie.cu.cc/2015/10/solution-to-the-ios-software-keyboard-cover-part-of-the-ui/