Why does the keyboard not show in my UITextView? - iphone

Question

I have a container class which is a view controller.
It holds the UITextView for notes and has another view controller as a subview, called it PDFViewController. That one has an array of view controllers, called them PageViewController's, in it and a UIScrollView so i can swipe through the different view controllers from the array.
Each of the PageViewController's has also an UIScrollView, so i can zoom the different pages.
But when I show my UITextView i cannot edit or write anything.
It shows a blinking cursor, but no keyboard and can't write text.
When i highlight a word from the default text, it shows me some dictionary options but the words won't be replaced.
I just don't know where the problem might be.
container.m (View Controller)
- (void) initNotes {
notesVisible = FALSE;
notes = [[UITextView alloc]initWithFrame:CGRectMake(10, 10, note_width, note_height)];
notes.backgroundColor = [UIColor yellowColor];
notes.font = [UIFont fontWithName:#"Arial" size:24];
notes.text = #"Hier ist Platz für Ihre Notizen";
container = [[UIView alloc] initWithFrame:CGRectMake(start_x, start_y, container_width, container_height)];
container.backgroundColor = [UIColor yellowColor];
[container.layer setShadowColor:[[UIColor blackColor] CGColor]];
[container.layer setShadowOffset:CGSizeMake(2.0, 3.0)];
[container.layer setShadowOpacity:0.6];
[container.layer setShadowRadius:5];
container.layer.shouldRasterize = YES;
[container addSubview:notes];
[self.view addSubview:container];
}
- (void) showTextView {
[UIView beginAnimations:#"MoveAndStrech" context:nil];
[UIView setAnimationDuration:0.4];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationCurve:UIViewAnimationCurveEaseOut];
container.frame = CGRectMake(start_x, self.view.center.y-container_height, container_width, container_height);
[UIView commitAnimations];
notesVisible = !notesVisible;
}
- (void) hideTextView {
[UIView beginAnimations:#"MoveAndStrech" context:nil];
[UIView setAnimationDuration:0.4];
[UIView setAnimationBeginsFromCurrentState:YES];
[UIView setAnimationCurve:UIViewAnimationCurveEaseIn];
container.frame = CGRectMake(start_x, start_y, container_width, container_height);
// [notes resignFirstResponder];
[UIView commitAnimations];
notesVisible = !notesVisible;
}
#implementation PDFViewController
- (void)awakeFromNib
{
painting = false;
dataInstance = [PDFDataInstance sharedInstance];
chapter = [dataInstance chapter];
[self getNumberOfPages];
kNumberOfPages = dataInstance.pages;
// Register observer to be called when a cell from BookmarkPDFController is pressed
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(didSelectBookmark:)
name:#"bookmarkPressedinPDFView" object:nil];
// Register observer to be called when a cell from BookmarkPDFController is pressed
[[NSNotificationCenter defaultCenter] addObserver:self
selector:#selector(togglePainting:)
name:#"togglePainting" object:nil];
// view controllers are created lazily
// in the meantime, load the array with placeholders which will be replaced on demand
NSMutableArray *controllers = [[NSMutableArray alloc] init];
for (unsigned i = 0; i < kNumberOfPages; i++)
{
[controllers addObject:[NSNull null]];
}
self.viewControllers = controllers;
[controllers release];
// a page is the width of the scroll view
scrollView.pagingEnabled = YES;
scrollView.contentSize = CGSizeMake(scrollView.frame.size.width * kNumberOfPages, scrollView.frame.size.height);
scrollView.showsHorizontalScrollIndicator = NO;
scrollView.showsVerticalScrollIndicator = NO;
scrollView.delegate = self;
scrollView.directionalLockEnabled = YES;
currentPage = [[chapter currentPage] integerValue];
// pages are created on demand
// load the visible page
// load the page on either side to avoid flashes when the user starts scrolling
//
// Load pages based on currentPage cause of when coming from bookmarks
[self loadScrollViewWithPage:currentPage];
[self loadScrollViewWithPage:currentPage+1];
// update the scroll view to the appropriate page
CGRect frame = scrollView.frame;
frame.origin.x = frame.size.width * currentPage;
frame.origin.y = 0;
[scrollView scrollRectToVisible:frame animated:YES];
}
- (void)loadScrollViewWithPage:(int)page
{
if (page < 0)
return;
if (page >= kNumberOfPages)
return;
// replace the placeholder if necessary
PageViewController *controller = [viewControllers objectAtIndex:page];
if ((NSNull *)controller == [NSNull null])
{
//page+1 cause CGPDF indexing starts with 1
controller = [[PageViewController alloc] initWithPageNumberAndUrl:page+1: [chapter urlOnFilesystem]];
[viewControllers replaceObjectAtIndex:page withObject:controller];
[controller release];
}
// add the controller's view to the scroll view
if (controller.view.superview == nil)
{
CGRect frame = scrollView.frame;
frame.origin.x = frame.size.width * page;
frame.origin.y = 0;
controller.view.frame = frame;
[scrollView addSubview:controller.view];
}
}
TextView delegates
- (void)textViewDidBeginEditing:(UITextView *)textView {
NSLog(#"begin editing");
}
- (BOOL)textView:(UITextView *)aTextView shouldChangeTextInRange:(NSRange)aRange replacementText:(NSString*)aText
{
NSLog(#"something changed");
return YES;
}

Answer 1

Just want to add another possibility here. In the iOS simulator, make sure the "Hardware/Keyboard/Connect Hardware Keyboard" is not checked. It took me a couple of hours to figure out this. I guess I toggled that option by accidently pressing the shortcut. Not good experience :(
As pictured, Connect Hardware Keyboard should be UN-checked.

Answer 2

Is the UITextView receiving touches? Implement the UITextViewDelegate methods and see if they get called (esp textViewDidBeginEditing: and textView: shouldChangeTextInRange: replacementText:). This way you'll know for sure whether the text view is indeed handling the touches or not.
If it does, then I don't see anything wrong with your code (except you might have accidentally added a view overlapping the textview)

Answer 3

No one asked , but have you set :
notes.editable = YES ;
?

Answer 4

Make sure that in the delegate of your textview. Following method is returning YES.
- (BOOL)textViewShouldBeginEditing:(UITextView *)textView
{
return YES;
}

Answer 5

After you have set the notes delegates, do the following.
- (void)textViewDidBeginEditing:(UITextView *)textView {
if ([textView isEqual:notes]) {
NSLog(#"notes begin editing");
}
}
- (BOOL)textView:(UITextView *)aTextView shouldChangeTextInRange:(NSRange)aRange replacementText:(NSString*)aText {
if ([aTextView isEqual:notes]) {
NSLog(#"something changed in notes");
}
return YES;
}
This should confirm delegates of notes are indeed getting called.

Answer 6

you need to implement your container class with UITextViewDelegate
and add notes.delegate=self; just after initialize the notes object in initNotes method.

Answer 7

Check for 2 things:
Is notes.editable = YES; if so please change it to NO.
2.Check whether your UITextView delegates are called are not. If not Please make sure you include in your implementation file and set notes.delegate = self.

Answer 8

Try without container, just use the UITextView (notes) as the container itself.
Every time you used container use notes instead.
And then dont:
[container addSubview:notes];
[self.view addSubview:container];
Just:
[self.view addSubview:notes];
Tell me how it goes

Answer 9

I had similar behavior, the UITextView not responding to touches and the keyboard not showing.
My UITextView was layered on top of a UICollectionView which was receiving all the touches even though the UITextView was visibly on top.
I fixed it by adjusting the frame of the UICollectionView so that the UITextView has nothing behind it. After that, all the delegate methods were called like a charm.
Hope this helps.

Answer 10

please Refer this one. where ContantView is your view/textfield and _bubbletable is your table.
- (void)keyboardWasShown:(NSNotification*)aNotification
{
NSDictionary* info = [aNotification userInfo];
CGSize kbSize = [[info objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
[UIView animateWithDuration:0.2f animations:^{
CGRect frame = _ContantView.frame;
frame.origin.y -= kbSize.height;
_ContantView.frame = frame;
frame = _bubbleTable.frame;
frame.size.height -= kbSize.height;
_bubbleTable.frame = frame;
}];
}