我想通过单击关闭按钮来关闭键盘,如何在键盘上建立一个栏?像这样:(
来源:alexcurylo.com)
问问题
925 次
3 回答
6
它在这里得到了回答。基本上,您resignFirstResponder
向UITextView
. 当然,您会将该代码放在按钮的委托上。
于 2010-04-11T13:32:52.740 回答
1
尝试输入以下代码。它可能对你有用。
将以下变量放入 viewController.h 文件中
UIToolbar *keyboardToolbar;
id notisender;
BOOL isAlreadyResigned;
float kx,ky,kh,kw;
现在将以下代码放入您的 viewController.m 文件中。
- (void)viewDidLoad {
[super viewDidLoad];
}
-(void)viewWillAppear:(BOOL)animated{
isAlreadyResigned=YES;
[self keyboardToolbarShouldShow];
[self keyboardToolbarShouldShow];
[super viewWillAppear:animated];
}
-(void)viewWillDisappear:(BOOL)animated{
[self keyboardToolbarShouldNotShow];
[super viewWillDisappear:animated];
}
#pragma mark keyboardWillShow methods
-(void)keyboardToolbarShouldShow {
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillShow:)
name:UIKeyboardWillShowNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardhide:)
name:UIKeyboardWillHideNotification
object:nil];
}
-(void)keyboardToolbarShouldNotShow {
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIKeyboardWillShowNotification
object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIKeyboardWillHideNotification
object:nil];
if(!isAlreadyResigned){
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillNotShow:)
name:UIKeyboardWillShowNotification
object:nil];
[GEEtxtMsg becomeFirstResponder];
}
}
-(void)keyboardWillShow : (NSNotification *)sender {
@try {
// NSLog(@"notification in first view");
for (UIWindow *keyboardWindow in [[UIApplication sharedApplication] windows]) {
for (UIView *keyboard in [keyboardWindow subviews]) {
NSLog(@"keyboard description - %@",[keyboard description]);
if([[keyboard description] hasPrefix:@"<UIKeyboard"] == YES) {
NSValue *v = [[sender userInfo] valueForKey:UIKeyboardBoundsUserInfoKey];
CGRect kbBounds = [v CGRectValue];
if(keyboardToolbar == nil) {
keyboardToolbar = [[UIToolbar alloc] initWithFrame:CGRectZero];
keyboardToolbar.barStyle=UIBarStyleBlackOpaque;
keyboardToolbar.tintColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:1];
UIBarButtonItem *barButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Done" style:UIBarButtonItemStyleBordered target:self action:@selector(dismissKeyboard)];
UIBarButtonItem *flex = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
NSArray *items = [[NSArray alloc] initWithObjects:flex, barButtonItem, nil];
[keyboardToolbar setItems:items];
[items release];
}
[keyboardToolbar removeFromSuperview];
keyboardToolbar.frame = CGRectMake(0, 0, kbBounds.size.width, 45);
[keyboard addSubview:keyboardToolbar];
NSLog(@"x=%f y=%f width=%f height=%f",kbBounds.origin.x, kbBounds.origin.y, kbBounds.size.width, kbBounds.size.height);
kx=kbBounds.origin.x; ky=kbBounds.origin.y;
kh=kbBounds.size.height; kw=kbBounds.size.width;
keyboard.bounds = CGRectMake(kbBounds.origin.x, kbBounds.origin.y, kbBounds.size.width, kbBounds.size.height + 87);
isAlreadyResigned=NO;
for(UIView* subKeyboard in [keyboard subviews]) {
if([[subKeyboard description] hasPrefix:@"<UIKeyboardImpl"] == YES) {
subKeyboard.bounds = CGRectMake(kbBounds.origin.x, kbBounds.origin.y - 45, kbBounds.size.width, kbBounds.size.height);
}
}
}
}
}
} @catch (NSException * e) {
NSLog(@"Problem in keyboardWillShow:%@",e);
}
}
-(void)keyboardWillNotShow : (NSNotification *)sender {
@try {
for (UIWindow *keyboardWindow in [[UIApplication sharedApplication] windows]) {
for (UIView *keyboard in [keyboardWindow subviews]) {
if([[keyboard description] hasPrefix:@"<UIKeyboard"] == YES) {
// NSValue *v = [[sender userInfo] valueForKey:UIKeyboardBoundsUserInfoKey];
// CGRect kbBounds = [v CGRectValue];
if([[keyboard subviews] containsObject:keyboardToolbar]){
[keyboardToolbar removeFromSuperview];
}
if(!isAlreadyResigned){
isAlreadyResigned=YES;
keyboard.bounds = CGRectMake(kx,ky,kw,kh);
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIKeyboardWillShowNotification
object:nil];
for(UIView* subKeyboard in [keyboard subviews]) {
if([[subKeyboard description] hasPrefix:@"<UIKeyboardImpl"] == YES) {
subKeyboard.bounds = CGRectMake(0, 0,0, 0);
}
}
}
}
}
}
} @catch (NSException * e) {
NSLog(@"Problem in keyboardWillShow:%@",e);
}
}
-(void)dismissKeyboard {
[self resignTextFields];
}
-(void)keyboardhide:(NSNotification *)noti {
notisender = noti;
}
于 2010-04-13T15:14:25.663 回答
1
在这里您可以在键盘上构建一个栏在xib上获取静态工具栏并将一个按钮放在工具栏上,并使工具栏隐藏,现在在您创建工具栏时在您的方法中编写代码,就像您想在textview上创建工具栏一样然后开始编辑方法,
- (BOOL)textViewShouldBeginEditing:(UITextView *)textView
{
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.26];
[tlBar setFrame:CGRectMake(0, 220, 320, 44)];
tlBar.hidden=NO;
[UIView commitAnimations];
}
当您关闭键盘时,编写此方法并在按下工具栏按钮时调用此方法
-(IBAction)kbAway:(id)sender
{
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:0.3];
[tlBar setFrame:CGRectMake(0, 480, 320, 44)];
[UIView commitAnimations];
[txtviewmessage resignFirstResponder];
[txtsubject resignFirstResponder];
[txttemplatename resignFirstResponder];
}
希望对你有帮助..
于 2012-05-18T07:55:49.297 回答