@implementation UIKeyboardViewController
@synthesize boardDelegate = _boardDelegate;
- (void)dealloc
{
_boardDelegate = nil;
[self removeKeyBoardNotification];
[super dealloc];
}
// 监听键盘隐藏和显示事件
- (void)addKeyBoardNotification
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShowOrHide:) name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShowOrHide:) name:UIKeyboardWillHideNotification object:nil];
}
// 注销监听事件
- (void)removeKeyBoardNotification {
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil];
}
// 计算当前键盘的高度
-(void)keyboardWillShowOrHide:(NSNotification *)notification
{
#if __IPHONE_OS_VERSION_MAX_ALLOWED >= __IPHONE_3_2
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
{
#endif
kboardHeight = 264.0f + keyBoardToolbarHeight;
}
NSValue *keyboardBoundsValue;
if (IOS_VERSION >= 3.2) {
keyboardBoundsValue = [[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey];
}
else {
keyboardBoundsValue = [[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey];
}
[keyboardBoundsValue getValue:&keyboardBounds];
BOOL isShow = [[notification name] isEqualToString:UIKeyboardWillShowNotification] ? YES : NO;
if ([self firstResponder:objectView])
{
[self animateView:isShow textField:[self firstResponder:objectView]
heightforkeyboard:keyboardBounds.size.height];
}
}
//输入框上移防止键盘遮挡
- (void)animateView:(BOOL)isShow textField:(id)textField heightforkeyboard:(CGFloat)kheight
{
kboardHeight = kheight;
[self checkBarButton:textField];
CGRect rect = objectView.frame;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3];
if (isShow) {
if ([textField isKindOfClass:[UITextField class]]) {
UITextField *newText = ((UITextField *)textField);
CGPoint textPoint = [newText convertPoint:CGPointMake(0, newText.frame.size.height + spacerY) toView:objectView];
if (rect.size.height - textPoint.y < kheight)
rect.origin.y = rect.size.height - textPoint.y - kheight + viewFrameY;
else rect.origin.y = viewFrameY;
}
else {
UITextView *newView = ((UITextView *)textField);
CGPoint textPoint = [newView convertPoint:CGPointMake(0, newView.frame.size.height + spacerY) toView:objectView];
if (rect.size.height - textPoint.y < kheight)
rect.origin.y = rect.size.height - textPoint.y - kheight + viewFrameY;
else rect.origin.y = viewFrameY;
}
}
else rect.origin.y = viewFrameY;
objectView.frame = rect;
[UIView commitAnimations];
}
//输入框获得焦点
- (id)firstResponder:(UIView *)navView {
for (id aview in [self allSubviews:navView]) {
if ([aview isKindOfClass:[UITextField class]] && [(UITextField *)aview isFirstResponder]) {
return (UITextField *)aview;
}
else if ([aview isKindOfClass:[UITextView class]] && [(UITextView *)aview isFirstResponder]) {
return (UITextView *)aview;
}
}
return NO;
}
//找出所有的subview
- (NSArray *)allSubviews:(UIView *)theView {
NSArray *results = [theView subviews];
for (UIView *eachView in [theView subviews]) {
NSArray *riz = [self allSubviews:eachView];
if (riz) {
results = [results arrayByAddingObjectsFromArray:riz];
}
}
return results;
}
//输入框失去焦点，隐藏键盘
- (void)resignKeyboard:(UIView *)resignView
{
[[[UIApplication sharedApplication] keyWindow] endEditing:YES];
}
//设置previousBarItem或nextBarItem是否允许点击
- (void)checkBarButton:(id)textField {
int i = 0,j = 0;
UIBarButtonItem *previousBarItem = [keyboardToolbar itemForIndex:0];
UIBarButtonItem *nextBarItem = [keyboardToolbar itemForIndex:1];
for (id aview in [self allSubviews:objectView]) {
if ([aview isKindOfClass:[UITextField class]] && ((UITextField*)aview).userInteractionEnabled && ((UITextField*)aview).enabled) {
i++;
if ([(UITextField *)aview isEqual:textField]) {
j = i;
}
}
else if ([aview isKindOfClass:[UITextView class]] && ((UITextView*)aview).userInteractionEnabled && ((UITextView*)aview).editable) {
i++;
if ([(UITextView *)aview isEqual:textField]) {
j = i;
}
}
}
[previousBarItem setEnabled:j > 1 ? YES : NO];
[nextBarItem setEnabled:j < i ? YES : NO];
}
//toolbar button点击事件
#pragma mark - UIKeyboardView delegate methods
-(void)toolbarButtonTap:(UIButton *)button
{
NSInteger buttonTag = button.tag;
NSMutableArray *textFieldArray=[NSMutableArray arrayWithCapacity:10];
for (id aview in [self allSubviews:objectView]) {
if ([aview isKindOfClass:[UITextField class]] && ((UITextField*)aview).userInteractionEnabled && ((UITextField*)aview).enabled) {
[textFieldArray addObject:(UITextField *)aview];
}
else if ([aview isKindOfClass:[UITextView class]] && ((UITextView*)aview).userInteractionEnabled && ((UITextView*)aview).editable) {
[textFieldArray addObject:(UITextView *)aview];
}
}
for (int i = 0; i < [textFieldArray count]; i++) {
id textField = [textFieldArray objectAtIndex:i];
if ([textField isKindOfClass:[UITextField class]]) {
textField = ((UITextField *)textField);
}
else {
textField = ((UITextView *)textField);
}
if ([textField isFirstResponder]) {
if (buttonTag == 1) {
if (i > 0) {
[[textFieldArray objectAtIndex:--i] becomeFirstResponder];
[self animateView:YES textField:[textFieldArray objectAtIndex:i] heightforkeyboard:kboardHeight];
}
}
else if (buttonTag == 2) {
if (i < [textFieldArray count] - 1) {
[[textFieldArray objectAtIndex:++i] becomeFirstResponder];
[self animateView:YES textField:[textFieldArray objectAtIndex:i] heightforkeyboard:kboardHeight];
}
}
}
}
if (buttonTag == 3)
[self resignKeyboard:objectView];
}
#pragma mark - TextField delegate methods
- (void)textFieldDidBeginEditing:(UITextField *)textField
{
[self checkBarButton:textField];
}
- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
[textField resignFirstResponder];
return YES;
}
- (void)textFieldDidEndEditing:(UITextField *)textField
{
if ([self.boardDelegate respondsToSelector:@selector(alttextFieldDidEndEditing:)])
{
[self.boardDelegate alttextFieldDidEndEditing:textField];
}
}
#pragma mark - UITextView delegate methods
- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
{
if ([text isEqualToString:@"\n"])
{
[textView resignFirstResponder];
return NO;
}
return YES;
}
- (void)textViewDidEndEditing:(UITextView *)textView
{
if ([self.boardDelegate respondsToSelector:@selector(alttextViewDidEndEditing:)])
{
[self.boardDelegate alttextViewDidEndEditing:textView];
}
}
- (void)textViewDidBeginEditing:(UITextView *)textView
{
if([self.boardDelegate respondsToSelector:@selector(alttextViewDidBeginEditing:)])
{
[self.boardDelegate alttextViewDidBeginEditing:textView];
}
}
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string
{
if([self.boardDelegate respondsToSelector:@selector(alttextViewEditing:shouldChangeCharactersInRange:replacementString:)])
{
return [self.boardDelegate alttextViewEditing:textField shouldChangeCharactersInRange:range replacementString:string];
}
return YES;
}
- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
if([self.boardDelegate respondsToSelector:@selector(alttextFieldShouldBeginEditing:)])
{
return [self.boardDelegate alttextFieldShouldBeginEditing:textField];
}
return YES;
}
@end
@implementation UIKeyboardViewController (UIKeyboardViewControllerCreation)
- (id)initWithControllerDelegate:(id <UIKeyboardViewControllerDelegate>)delegateObject {
if (self = [super init])
{
self.boardDelegate = delegateObject;
if ([self.boardDelegate isKindOfClass:[UIViewController class]])
{
objectView = [(UIViewController *)[self boardDelegate] view];
}
else if ([self.boardDelegate isKindOfClass:[UIView class]])
{
objectView = (UIView *)[self boardDelegate];
}
viewFrameY = objectView.frame.origin.y;
[self addKeyBoardNotification];
}
return self;
}
@end
@implementation UIKeyboardViewController (UIKeyboardViewControllerAction)
//给键盘加上toolbar
- (void)addToolbarToKeyboard
{
keyboardToolbar = [[UIKeyboardView alloc] initWithFrame:CGRectMake(0, 0, objectView.frame.size.width, keyBoardToolbarHeight)];
keyboardToolbar.delegate = self;
for (id aview in [self allSubviews:objectView])
{
if ([aview isKindOfClass:[UITextField class]])
{
((UITextField *)aview).inputAccessoryView = keyboardToolbar;
((UITextField *)aview).delegate = self;
}
else if ([aview isKindOfClass:[UITextView class]])
{
((UITextView *)aview).inputAccessoryView = keyboardToolbar;
((UITextView *)aview).delegate = self;
}
}
[keyboardToolbar release];
}
@end
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