【发布时间】:2012-02-23 04:31:04
【问题描述】:
我正在尝试向 UIKeyboadnumpad 添加一个“完成”按钮,但没有成功。 我的代码有什么问题?
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
【问题讨论】:
-
您的代码标签似乎不起作用。
-
您的代码示例显示不正确,但它已由一位好心的志愿者修复,没关系。 :)
-
我在互联网上找到了这段代码并尝试修复它并使其无法成功,如果您有任何线索请帮助我,这是什么问题
-
在您尝试执行此操作之前,请注意此答案stackoverflow.com/a/8246080/41116 中反对这种自定义的原因
标签: iphone objective-c ios