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/*
File: TextViewController.m
Abstract: The view controller for hosting the UITextView features of this sample.
Version: 2.10
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*/
#import "TextViewController.h"
@implementation TextViewController
@synthesize textView;
- (void)dealloc
{
[textView release];
[super dealloc];
}
- (void)setupTextView
{
self.textView = [[[UITextView alloc] initWithFrame:self.view.frame] autorelease];
self.textView.textColor = [UIColor blackColor];
self.textView.font = [UIFont fontWithName:@"Arial" size:18.0];
self.textView.delegate = self;
self.textView.backgroundColor = [UIColor whiteColor];
self.textView.text = @"Now is the time for all good developers to come to serve their country.\n\nNow is the time for all good developers to come to serve their country.";
self.textView.returnKeyType = UIReturnKeyDefault;
self.textView.keyboardType = UIKeyboardTypeDefault; // use the default type input method (entire keyboard)
self.textView.scrollEnabled = YES;
// this will cause automatic vertical resize when the table is resized
self.textView.autoresizingMask = UIViewAutoresizingFlexibleHeight;
// note: for UITextView, if you don't like autocompletion while typing use:
// myTextView.autocorrectionType = UITextAutocorrectionTypeNo;
[self.view addSubview: self.textView];
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = NSLocalizedString(@"TextViewTitle", @"");
[self setupTextView];
}
// called after the view controller's view is released and set to nil.
// For example, a memory warning which causes the view to be purged. Not invoked as a result of -dealloc.
// So release any properties that are loaded in viewDidLoad or can be recreated lazily.
//
- (void)viewDidUnload
{
[super viewDidUnload];
self.textView = nil;
}
- (void)keyboardWillShow:(NSNotification *)aNotification
{
// the keyboard is showing so resize the table's height
CGRect keyboardRect = [[[aNotification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
NSTimeInterval animationDuration =
[[[aNotification userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];
CGRect frame = self.view.frame;
frame.size.height -= keyboardRect.size.height;
[UIView beginAnimations:@"ResizeForKeyboard" context:nil];
[UIView setAnimationDuration:animationDuration];
self.view.frame = frame;
[UIView commitAnimations];
}
- (void)keyboardWillHide:(NSNotification *)aNotification
{
// the keyboard is hiding reset the table's height
CGRect keyboardRect = [[[aNotification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];
NSTimeInterval animationDuration =
[[[aNotification userInfo] objectForKey:UIKeyboardAnimationDurationUserInfoKey] doubleValue];
CGRect frame = self.view.frame;
frame.size.height += keyboardRect.size.height;
[UIView beginAnimations:@"ResizeForKeyboard" context:nil];
[UIView setAnimationDuration:animationDuration];
self.view.frame = frame;
[UIView commitAnimations];
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
// listen for keyboard hide/show notifications so we can properly adjust the table's height
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillShow:)
name:UIKeyboardWillShowNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillHide:)
name:UIKeyboardWillHideNotification
object:nil];
}
- (void)viewDidDisappear:(BOOL)animated
{
[super viewDidDisappear:animated];
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIKeyboardWillShowNotification
object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIKeyboardWillHideNotification
object:nil];
}
#pragma mark -
#pragma mark UITextViewDelegate
- (void)saveAction:(id)sender
{
// finish typing text/dismiss the keyboard by removing it as the first responder
//
[self.textView resignFirstResponder];
self.navigationItem.rightBarButtonItem = nil; // this will remove the "save" button
}
- (void)textViewDidBeginEditing:(UITextView *)textView
{
// provide my own Save button to dismiss the keyboard
UIBarButtonItem* saveItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone
target:self
action:@selector(saveAction:)];
self.navigationItem.rightBarButtonItem = saveItem;
[saveItem release];
}
@end