I'm sorry about my English language.
I tried to find before it acts. But the problem is that ViewController in the landscape and created UIView half of the ViewController. In UIView have UITextView. But now when keyboard appear background in the ViewController scroll down below the keyboard. And see just UIView. If touch space, keyboard will disappear and background comeback. I want to just is move the UIView when keyboard appear.
Thank you very much.
try this
- (void)viewDidAppear:(BOOL)animated
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];
}
- (void)keyboardWillShow:(NSNotification *)note
{
CGRect keyboardBounds;
NSValue *aValue = [note.userInfo objectForKey:UIKeyboardFrameBeginUserInfoKey];
[aValue getValue:&keyboardBounds];
keyboardHeight = keyboardBounds.size.height;
if (!keyboardIsShowing)
{
keyboardIsShowing = YES;
CGRect frame = view.frame;
frame.size.height -= 168;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:0.3f];
view.frame = frame;
[UIView commitAnimations];
}
}
- (void)keyboardWillHide:(NSNotification *)note
{
CGRect keyboardBounds;
NSValue *aValue = [note.userInfo valueForKey:UIKeyboardFrameEndUserInfoKey];
[aValue getValue: &keyboardBounds];
keyboardHeight = keyboardBounds.size.height;
if (keyboardIsShowing)
{
keyboardIsShowing = NO;
CGRect frame = view.frame;
frame.size.height += 168;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:0.3f];
view.frame = frame;
[UIView commitAnimations];
}
}
This answer looks like it might be what you're looking for.
In short:
Detect when the keyboard appears with UIKeyboardDidShowNotification.
The user info for that notification describes the frame of the keyboard.
Adjust the frame(s) of your view(s) to get them out from under the keyboard.
Related
This question already has answers here:
How can I make a UITextField move up when the keyboard is present - on starting to edit?
(98 answers)
Closed 9 years ago.
How to move UITextView Up and Down when you start entering some value. Like in TextField we use its delegate method. What to do in case of UITextView ?
While editing complete View will move up and after done editing will move down...
- (void)textViewDidBeginEditing:(UITextView *)textView
{
[self animateTextView: YES];
}
- (void)textViewDidEndEditing:(UITextView *)textView
{
[self animateTextView:NO];
}
- (void) animateTextView:(BOOL) up
{
const int movementDistance =heightKeyboard; // tweak as needed
const float movementDuration = 0.3f; // tweak as needed
int movement= movement = (up ? -movementDistance : movementDistance);
NSLog(#"%d",movement);
[UIView beginAnimations: #"anim" context: nil];
[UIView setAnimationBeginsFromCurrentState: YES];
[UIView setAnimationDuration: movementDuration];
self.view.frame = CGRectOffset(self.inputView.frame, 0, movement);
[UIView commitAnimations];
}
I hope this will help you...
Here is a sample code that will handle the keyboard automatically for you. Keyboard avoiding
If you are using TableView then your tableView must be a subclass of TPKeyboardAvoidingTableView and if you are using scrollview then your scrollview must be a subclass of TPKeyboardAvoidingScrollView. And this library will automatically do keyboard handling for you.
I suggest you to take a look at this guide
in particular at section: Moving Content That Is Located Under the Keyboard.
I have used this approach successfully several times.
I did by changing the frame.
-(void)textViewDidBeginEditing:(UITextView *)textView{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
[UIView setAnimationTransition:UIViewAnimationTransitionNone forView:viewMsg cache:YES];
viewMsg.frame = CGRectMake(10, 50, 300, 200);
[UIView commitAnimations];
NSLog(#"Started editing target!");
}
-(void)textViewDidEndEditing:(UITextView *)textView
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
[UIView setAnimationTransition:UIViewAnimationTransitionNone forView:viewMsg cache:YES];
viewMsg.frame = CGRectMake(10, 150, 300, 200);
[UIView commitAnimations];
}
#define kOFFSET_FOR_KEYBOARD 80.0
-(void)keyboardWillShow {
// Animate the current view out of the way
if (self.view.frame.origin.y >= 0)
{
[self setViewMovedUp:YES];
}
else if (self.view.frame.origin.y < 0)
{
[self setViewMovedUp:NO];
}
}
-(void)keyboardWillHide {
if (self.view.frame.origin.y >= 0)
{
[self setViewMovedUp:YES];
}
else if (self.view.frame.origin.y < 0)
{
[self setViewMovedUp:NO];
}
}
-(void)textFieldDidBeginEditing:(UITextField *)sender
{
if ([sender isEqual:mailTf])
{
//move the main view, so that the keyboard does not hide it.
if (self.view.frame.origin.y >= 0)
{
[self setViewMovedUp:YES];
}
}
}
//method to move the view up/down whenever the keyboard is shown/dismissed
-(void)setViewMovedUp:(BOOL)movedUp
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3]; // if you want to slide up the view
CGRect rect = self.view.frame;
if (movedUp)
{
// 1. move the view's origin up so that the text field that will be hidden come above the keyboard
// 2. increase the size of the view so that the area behind the keyboard is covered up.
rect.origin.y -= kOFFSET_FOR_KEYBOARD;
rect.size.height += kOFFSET_FOR_KEYBOARD;
}
else
{
// revert back to the normal state.
rect.origin.y += kOFFSET_FOR_KEYBOARD;
rect.size.height -= kOFFSET_FOR_KEYBOARD;
}
self.view.frame = rect;
[UIView commitAnimations];
}
- (void)viewWillAppear:(BOOL)animated
{
// register for keyboard notifications
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(keyboardWillShow)
name:UIKeyboardWillShowNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(keyboardWillHide)
name:UIKeyboardWillHideNotification
object:nil];
}
- (void)viewWillDisappear:(BOOL)animated
{
// unregister for keyboard notifications while not visible.
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIKeyboardWillShowNotification
object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIKeyboardWillHideNotification
object:nil];
}
try This CODE.....
Hi can someone help me create this feature, I would like to have a text box at the bottom of my app, and as soon as the user clicks on it, it should raise that text box to the middle of screen right above the keyboard. Similar to skype app, thanks!
Try This
#define kKeyboardAnimationDuration 0.3
#interface YourViewController:UIViewController
{
BOOL keyboardIsShown;
}
And then in your implementation
- (void)viewDidLoad
{
// register for keyboard notifications
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(keyboardWillShow:)
name:UIKeyboardWillShowNotification
object:self.view.window];
// register for keyboard notifications
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(keyboardWillHide:)
name:UIKeyboardWillHideNotification
object:self.view.window];
keyboardIsShown = NO;
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
// unregister for keyboard notifications while not visible.
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIKeyboardWillShowNotification
object:nil];
// unregister for keyboard notifications while not visible.
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIKeyboardWillHideNotification
object:nil];
}
#pragma mark - Keyboard Events
- (void)keyboardWillShow:(NSNotification *)n
{
if (keyboardIsShown)
{
return;
}
NSDictionary* userInfo = [n userInfo];
CGSize keyboardSize = [[userInfo objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
CGRect viewFrame = self.view.frame;
viewFrame.origin.y-= (keyboardSize.height);
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:kKeyboardAnimationDuration];
[self.view setFrame:viewFrame];
[UIView commitAnimations];
keyboardIsShown = YES;
}
- (void)keyboardWillHide:(NSNotification *)n
{
NSDictionary* userInfo = [n userInfo];
CGSize keyboardSize = [[userInfo objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
CGRect viewFrame = self.view.frame;
viewFrame.origin.y+= (keyboardSize.height);
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:kKeyboardAnimationDuration];
[self.view setFrame:viewFrame];
[UIView commitAnimations];
keyboardIsShown = NO;
}
i have used following code to move the screen upwards when we hit on text field ,,this code was working fine with xcode 3 but its not working with xcode 4 ,,its not giving any error but when we touch on the text field screen ill go upwards to a greater height ,,some times wont come back ti original position
- (void)keyboardWasShown:(NSNotification *)aNotification {
if ( keyboardShown )
return;
if ((activeField==tfText[4])||(activeField==tfText[5]))
{
#if __IPHONE_OS_VERSION_MIN_REQUIRED <= __IPHONE_3_2
CGRect _keyboardEndFrame;
[[aNotification.userInfo valueForKey:UIKeyboardBoundsUserInfoKey] getValue:&_keyboardEndFrame];
CGFloat keyboardSize;
if ([[UIDevice currentDevice] orientation] == UIDeviceOrientationPortrait || [[UIDevice currentDevice] orientation] == UIDeviceOrientationPortraitUpsideDown)
{
keyboardSize = _keyboardEndFrame.size.height;
}
else {
keyboardSize = _keyboardEndFrame.size.width;
}
NSTimeInterval animationDuration = 0.300000011920929;
CGRect frame = self.view.frame;
frame.origin.y -= keyboardSize-70;
frame.size.height += keyboardSize-70;
[UIView beginAnimations:#"ResizeForKeyboard" context:nil];
[UIView setAnimationDuration:animationDuration];
self.view.frame = frame;
[UIView commitAnimations];
#else
NSDictionary *info = [aNotification userInfo];
NSValue *aValue = [info objectForKey:UIKeyboardBoundsUserInfoKey];
CGSize keyboardSize = [aValue CGRectValue].size;
NSTimeInterval animationDuration = 0.300000011920929;
CGRect frame = self.view.frame;
frame.origin.y -= keyboardSize.height-70;
frame.size.height += keyboardSize.height-70;
[UIView beginAnimations:#"ResizeForKeyboard" context:nil];
[UIView setAnimationDuration:animationDuration];
self.view.frame = frame;
[UIView commitAnimations];
#endif
viewMoved = YES;
}
keyboardShown = YES;
}
- (void)keyboardWasHidden:(NSNotification *)aNotification {
if ( viewMoved ) {
#if __IPHONE_OS_VERSION_MIN_REQUIRED <= __IPHONE_3_2
CGRect _keyboardEndFrame;
[[aNotification.userInfo valueForKey:UIKeyboardBoundsUserInfoKey] getValue:&_keyboardEndFrame];
CGFloat keyboardSize;
if ([[UIDevice currentDevice] orientation] == UIDeviceOrientationPortrait || [[UIDevice currentDevice] orientation] == UIDeviceOrientationPortraitUpsideDown) {
keyboardSize = _keyboardEndFrame.size.height;
}
else {
keyboardSize = _keyboardEndFrame.size.width;
}
NSTimeInterval animationDuration = 0.300000011920929;
CGRect frame = self.view.frame;
frame.origin.y += keyboardSize-70;
frame.size.height -= keyboardSize-70;
[UIView beginAnimations:#"ResizeForKeyboard" context:nil];
[UIView setAnimationDuration:animationDuration];
self.view.frame = frame;
[UIView commitAnimations];
#else
NSValue *aValue = [info objectForKey:UIKeyboardBoundsUserInfoKey];
CGSize keyboardSize = [aValue CGRectValue].size;
NSTimeInterval animationDuration = 0.300000011920929;
CGRect frame = self.view.frame;
frame.origin.y += keyboardSize.height-70;
frame.size.height -= keyboardSize.height-70;
[UIView beginAnimations:#"ResizeForKeyboard" context:nil];
[UIView setAnimationDuration:animationDuration];
self.view.frame = frame;
[UIView commitAnimations];
#endif
viewMoved = NO;
}
keyboardShown = NO;
}
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
activeField = textField;
}
- (void)textFieldDidEndEditing:(UITextField *)textField
{
activeField = nil;
// Additional Code
}
using following code i am calling the above methods
- (void)viewDidLoad
{
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(keyboardWasShown:)
name:UIKeyboardDidShowNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(keyboardWasHidden:)
name:UIKeyboardDidHideNotification
object:nil];
}
- (void)viewDidLoad
{
[super viewDidLoad];
// register for keyboard notifications
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(keyboardWillShow:)
name:UIKeyboardWillShowNotification
object:self.view.window];
// register for keyboard notifications
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(keyboardWillHide:)
name:UIKeyboardWillHideNotification
object:self.view.window];
keyboardIsShown = NO;
//make contentSize bigger than your scrollSize (you will need to figure out for your own use case)
CGSize scrollContentSize = CGSizeMake(320, 345);
self.scrollView.contentSize = scrollContentSize;
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
// unregister for keyboard notifications while not visible.
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIKeyboardWillShowNotification
object:nil];
// unregister for keyboard notifications while not visible.
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIKeyboardWillHideNotification
object:nil];
}
- (void)keyboardWillHide:(NSNotification *)n
{
NSDictionary* userInfo = [n userInfo];
// get the size of the keyboard
NSValue* boundsValue = [userInfo objectForKey:UIKeyboardBoundsUserInfoKey];
CGSize keyboardSize = [boundsValue CGRectValue].size;
// resize the scrollview
CGRect viewFrame = self.scrollView.frame;
// I'm also subtracting a constant kTabBarHeight because my UIScrollView was offset by the UITabBar so really only the portion of the keyboard that is leftover pass the UITabBar is obscuring my UIScrollView.
viewFrame.size.height += (keyboardSize.height - kTabBarHeight);
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
// The kKeyboardAnimationDuration I am using is 0.3
[UIView setAnimationDuration:kKeyboardAnimationDuration];
[self.scrollView setFrame:viewFrame];
[UIView commitAnimations];
keyboardIsShown = NO;
}
- (void)keyboardWillShow:(NSNotification *)n
{
// This is an ivar I'm using to ensure that we do not do the frame size adjustment on the UIScrollView if the keyboard is already shown. This can happen if the user, after fixing editing a UITextField, scrolls the resized UIScrollView to another UITextField and attempts to edit the next UITextField. If we were to resize the UIScrollView again, it would be disastrous. NOTE: The keyboard notification will fire even when the keyboard is already shown.
if (keyboardIsShown) {
return;
}
NSDictionary* userInfo = [n userInfo];
// get the size of the keyboard
NSValue* boundsValue = [userInfo objectForKey:UIKeyboardBoundsUserInfoKey];
CGSize keyboardSize = [boundsValue CGRectValue].size;
// resize the noteView
CGRect viewFrame = self.scrollView.frame;
// I'm also subtracting a constant kTabBarHeight because my UIScrollView was offset by the UITabBar so really only the portion of the keyboard that is leftover pass the UITabBar is obscuring my UIScrollView.
viewFrame.size.height -= (keyboardSize.height - kTabBarHeight);
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
// The kKeyboardAnimationDuration I am using is 0.3
[UIView setAnimationDuration:kKeyboardAnimationDuration];
[self.scrollView setFrame:viewFrame];
[UIView commitAnimations];
keyboardIsShown = YES;
}
I am trying to make a UIScrollView scroll when the user starts editing a UITextField and the text field is hidden by the keyboard. I am using an example from the following thread.
How to make a UITextField move up when keyboard is present
I have four UITextFields in my view. When the keyboard is shown for the first time the view does not scroll automatically. If I click another text field with the keyboard shown, the UIScrollView scrolls as intended.
Hiding the keyboard (by tapping the "Done" button) and tapping a UITextField again the same issue occurs: the UIScrollView does not scroll at first but when changing focus to another text field it scrolls perfectly.
Can anyone please help me?
In viewDidLoad I set the size of the scrollView
keyboardIsShown = NO;
CGSize scrollContentSize = CGSizeMake(320, 350);
self.scrollView.contentSize = scrollContentSize;
I register for the keyboard notifications in viewWillAppear
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:self.view.window];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:self.view.window];
Then I unregister in viewWillDisappear
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil];
The following two methods are called by the notifications.
- (void)keyboardWillShow:(NSNotification *)n {
if (keyboardIsShown) {
return;
}
NSDictionary *userInfo = [n userInfo];
NSValue *boundsValue = [userInfo objectForKey:UIKeyboardFrameBeginUserInfoKey];
CGSize keyboardSize = [boundsValue CGRectValue].size;
CGRect viewFrame = self.scrollView.frame;
viewFrame.size.height -= (keyboardSize.height - 50);
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:0.3];
[self.scrollView setFrame:viewFrame];
[UIView commitAnimations];
keyboardIsShown = YES;
}
- (void)keyboardWillHide:(NSNotification *)n {
NSDictionary *userInfo = [n userInfo];
NSValue *boundsValue = [userInfo objectForKey:UIKeyboardFrameEndUserInfoKey];
CGSize keyboardSize = [boundsValue CGRectValue].size;
CGRect viewFrame = self.scrollView.frame;
viewFrame.size.height += (keyboardSize.height - 50);
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationDuration:0.3];
[self.scrollView setFrame:viewFrame];
[UIView commitAnimations];
keyboardIsShown = NO;
}
If you want to show the textfeild when keyboard is visible then use the code below. Don't go with the scrollview. If it is compulsory to use a scrollView then neglect this answer.
#define kOFFSET_FOR_KEYBOARD 280.0
- (void)keyboardWillHide:(NSNotification *)notif {
[self setViewMoveUp:NO];
}
- (void)keyboardWillShow:(NSNotification *)notif{
[self setViewMoveUp:YES];
}
- (void)textFieldDidBeginEditing:(UITextField *)textField {
stayup = YES;
[self setViewMoveUp:YES];
}
- (void)textFieldDidEndEditing:(UITextField *)textField {
stayup = NO;
[self setViewMoveUp:NO];
}
//method to move the view up/down whenever the keyboard is shown/dismissed
-(void)setViewMoveUp:(BOOL)moveUp
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3]; // if you want to slide up the view
[UIView setAnimationBeginsFromCurrentState:YES];
CGRect rect = self.view.frame;
if (moveUp)
{
// 1. move the view's origin up so that the text field that will be hidden come above the keyboard
// 2. increase the size of the view so that the area behind the keyboard is covered up.
if (rect.origin.y == 0 ) {
rect.origin.y -= kOFFSET_FOR_KEYBOARD;
//rect.size.height += kOFFSET_FOR_KEYBOARD;
}
}
else
{
if (stayup == NO) {
rect.origin.y += kOFFSET_FOR_KEYBOARD;
//rect.size.height -= kOFFSET_FOR_KEYBOARD;
}
}
self.view.frame = rect;
[UIView commitAnimations];
}
Try this methods. Edit it according to your requirement.
I have an editable UITextView with a couple pages worth of text. When the user taps inside and it brings up the keyboard, it hides the bottom part of the text and you can not scroll to see it.
Is there some obvious/easy/standard way to deal with this? I assume its a common issue. I assume that you have to resize the text view when the keyboard is up, or something like that?
Also, when they tap on the text view in the bottom half of the page, how to make it automatically scroll so that the line they tapped on is visible when the keyboard appears? Or will this be automatically taken care of if i resize the text view when the keyboard appears.
Thanks a lot guys
This has been discussed extensively here: How to make a UITextField move up when keyboard is present?
I personally have used Shiun's solution in the past and it works well.
UPDATE:
If you don't want to use that method, a slightly simpler method is to resize your text field when the keyboard shows. It would be better to follow the instructions on the link I posted above as the KeyboardWillShow notification will give you access to the keyboard height.
First set the delegate of the UITextField = self. Then:
-(void)textFieldDidBeginEditing:(UITextField *)textField { // This is where the keyboard becomes visible
textField.frame = CGRectMake(textField.frame.origin.x, textField.frame.origin.y, textField.frame.size.width, textField.frame.size.height-100);
}
-(void)textFieldDidEndEditing:(UITextField *)textField { // This is where the keyboard hides itself
textField.frame = CGRectMake(textField.frame.origin.x, textField.frame.origin.y, textField.frame.size.width, textField.frame.size.height+100);
}
You can tweak the 100 depending on your orientation etc. If you wanted to add some animations you could do:
-(void)textFieldDidBeginEditing:(UITextField *)textField { // This is where the keyboard becomes visible
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDelegate:self];
[UIView setAnimationDuration:0.5];
[UIView setAnimationBeginsFromCurrentState:YES];
textField.frame = CGRectMake(textField.frame.origin.x, textField.frame.origin.y, textField.frame.size.width, textField.frame.size.height-100);
[UIView commitAnimations];
}
-(void)textFieldDidEndEditing:(UITextField *)textField { // This is where the keyboard hides itself
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDelegate:self];
[UIView setAnimationDuration:0.5];
[UIView setAnimationBeginsFromCurrentState:YES];
textField.frame = CGRectMake(textField.frame.origin.x, textField.frame.origin.y, textField.frame.size.width, textField.frame.size.height+100);
[UIView commitAnimations];
}
This will nicely scroll your UITextView to the top of the keyboard when editing starts. This will also work if your UITextView have dynamic height (autogrow/autosize when typing). Tested in iOS 7.
Call your keyboard observer method and set UITextView delegate to current class:
- (void)viewDidLoad
{
...
[self observeKeyboard];
textView.delegate = (id)self;
}
Add keyboard observer for UIKeyboardDidShowNotification and UIKeyboardWillShowNotification:
- (void)observeKeyboard
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:#selector(keyboardDidShow:) name:UIKeyboardDidShowNotification object:nil];
}
Get keyboard size:
- (void)keyboardWillShow:(NSNotification *)notification
{
CGSize keyboardSize = [[[notification userInfo] objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
_keyboardHeight = keyboardSize.height;
}
- (void)keyboardDidShow:(NSNotification *)notification
{
CGSize keyboardSize = [[[notification userInfo] objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
_keyboardHeight = keyboardSize.height;
}
When UITextView did begin editing or value has changed call scrollKeyboardToTextView:
- (void)textViewDidBeginEditing:(UITextView *)textView
{
[self scrollKeyboardToTextView:textView];
}
- (void)textViewDidChange:(UITextView *)textView
{
[self scrollKeyboardToTextView:textView];
}
Scroll UITextView with animation to the top of the keyboard:
- (void)scrollKeyboardToTextView:(UITextView *)textView
{
UIEdgeInsets contentInsets = UIEdgeInsetsMake(0.0, 0.0, _keyboardHeight, 0.0);
self.scrollView.contentInset = contentInsets;
self.scrollView.scrollIndicatorInsets = contentInsets;
CGRect aRect = self.view.frame;
aRect.size.height -= _keyboardHeight;
CGPoint origin = textView.frame.origin;
origin.y -= self.scrollView.contentOffset.y;
origin.y += textView.frame.size.height;
CGPoint scrollPoint = CGPointMake(0.0, textView.frame.origin.y + textView.frame.size.height - (aRect.size.height));
[self.scrollView setContentOffset:scrollPoint animated:YES];
}