我需要在键盘上添加按钮。
Apple并没有提供这样的幸福,但是我发现了一些应用程序,它们已经完成了,下一个,以前的按钮。
我如何添加这些以及如何向他们提供点击事件。
任何人都可以帮助我。
答案 0 :(得分:2)
1.定义完成按钮(=返回键):
textField.returnKeyType = UIReturnKeyDone;
2.添加动作监听器:
[textField addTarget:self action:@selector(textFieldDoneEditing:) forControlEvents:UIControlEventEditingDidEndOnExit];
3.定义动作事件:
- (IBAction)textFieldDoneEditing:(id)sender {
[sender resignFirstResponder];
}
玩得开心!
修改强>
在这里,您可以找到如何使用Next& amp;添加工具栏的详细说明。上面的UITextField键盘: http://www.randomsequence.com/articles/adding-a-toolbar-with-next-previous-above-uitextfield-keyboard-iphone/
<强> EDIT2:强>
现在,我有一个非常好的例子:“这个视图扩展了UITextView添加在与这个UITextView相关联的键盘上,工具栏上带有一个«完成»按钮”
我检查代码,它比第一个例子容易得多:
<强> EDIT3:强>
嗯,不,我没有测试代码。但我现在将测试它!
1.问题:正确的初始化。如果我在IB中添加UITextView,则会调用initWithCoder:
- (id)init {
NSLog(@"init");
if (self = [super init]) {
//register a specific method on keyboard appearence
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
}
return self;
}
- (id)initWithCoder:(NSCoder *)decoder {
NSLog(@"initWithCoder");
if (self = [super initWithCoder:decoder]) {
//register a specific method on keyboard appearence
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
}
return self;
}
- (id)initWithFrame:(CGRect)frame {
NSLog(@"initWithFrame");
if (self = [super initWithFrame:frame]) {
//register a specific method on keyboard appearence
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:) name:UIKeyboardWillShowNotification object:nil];
}
return self;
}
2.问题:前缀“UIKeyboard”没有视图:
for (UIWindow *keyboardWindow in [[UIApplication sharedApplication] windows]) {
NSLog(@"keyboardWindow = %@", keyboardWindow);
for (UIView *keyboard in [keyboardWindow subviews]) {
NSLog(@"keyboard = %@", keyboard);
if([[keyboard description] hasPrefix:@"<UIKeyboard"] == YES) {
// THERE'S NO VIEW 'UIKeyboard'!!!
}
}
}
代码不起作用,对不起......我不知道为什么没有视图“UIKeyboard”......也许第一个例子会帮助你,你可以建立自己的解决方案。