尝试将完成按钮添加到数字键盘 [英] trying to add done button to Numeric keyboard
本文介绍了尝试将完成按钮添加到数字键盘的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在尝试向UIKeyboadnumpad添加完成按钮,但没有成功。
我的代码有什么问题?
I'm trying to add a "done" button to the UIKeyboadnumpad, but with no success. What's wrong in my code?
键盘没有完成按钮
@implementation DemoViewController
- (void)loadView {
self.view = [[UIView alloc] initWithFrame:[UIScreen mainScreen].applicationFrame];
self.view.backgroundColor = [UIColor groupTableViewBackgroundColor];
textField = [[UITextField alloc] initWithFrame:CGRectMake(10, 200, 300, 26)];
textField.borderStyle = UITextBorderStyleRoundedRect;
textField.keyboardType = UIKeyboardTypeNumberPad;
textField.returnKeyType = UIReturnKeyDone;
textField.textAlignment = UITextAlignmentLeft;
textField.text = @"12345";
[self.view addSubview:textField];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillShow:)
name:UIKeyboardWillShowNotification
object:nil];
}
- (void)keyboardWillShow:(NSNotification *)note {
// create custom button
UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
doneButton.frame = CGRectMake(0, 163, 106, 53);
doneButton.adjustsImageWhenHighlighted = NO;
[doneButton setImage:[UIImage imageNamed:@"DoneUp.png"] forState:UIControlStateNormal];
[doneButton setImage:[UIImage imageNamed:@"DoneDown.png"] forState:UIControlStateHighlighted];
[doneButton addTarget:self action:@selector(doneButton:) forControlEvents:UIControlEventTouchUpInside];
// locate keyboard view
UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:0];
UIView* keyboard;
for(int i=0; i<[tempWindow.subviews count]; i++) {
keyboard = [tempWindow.subviews objectAtIndex:i];
// keyboard view found; add the custom button to it
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 3.2) {
if([[keyboard description] hasPrefix:@"<UIPeripheralHost"] == YES)
[keyboard addSubview:doneButton];
} else {
if([[keyboard description] hasPrefix:@"<UIKeyboard"] == YES)
[keyboard addSubview:doneButton];
}
}
}
- (void)doneButton:(id)sender {
NSLog(@"Input: %@", textField.text);
[textField resignFirstResponder];
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
}
- (void)dealloc {
[[NSNotificationCenter defaultCenter] removeObserver:self];
[textField release];
[super dealloc];
}
@end
推荐答案
另一种解决方案。如果屏幕上还有其他非数字键盘文本字段,则表示完美。
- (void)viewDidLoad
{
[super viewDidLoad];
UIToolbar* numberToolbar = [[UIToolbar alloc]initWithFrame:CGRectMake(0, 0, 320, 50)];
numberToolbar.barStyle = UIBarStyleBlackTranslucent;
numberToolbar.items = [NSArray arrayWithObjects:
[[UIBarButtonItem alloc]initWithTitle:@"Cancel" style:UIBarButtonItemStyleBordered target:self action:@selector(cancelNumberPad)],
[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil],
[[UIBarButtonItem alloc]initWithTitle:@"Apply" style:UIBarButtonItemStyleDone target:self action:@selector(doneWithNumberPad)],
nil];
[numberToolbar sizeToFit];
numberTextField.inputAccessoryView = numberToolbar;
}
-(void)cancelNumberPad{
[numberTextField resignFirstResponder];
numberTextField.text = @"";
}
-(void)doneWithNumberPad{
NSString *numberFromTheKeyboard = numberTextField.text;
[numberTextField resignFirstResponder];
}
我需要电话簿(带+ *#)而非数字垫,我甚至没有角落里的空按钮。
I needed the phone pad (with the +*#) and not the number pad, do I didn't even had the empty button in the corner.
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