我正在构建一个带有 UITextField
的应用程序,当用户点击它时会显示十进制键盘。
我想自己在键盘上方添加一个“完成”按钮,所以我想使用它:
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillShow:)
name:UIKeyboardWillShowNotification
object:nil];
它可以完美地检测键盘何时启动,但我的问题是我在同一个 UIView
上有其他文本字段,但我不想在它们上面添加这个“完成”按钮.
有没有办法检测显示的是十进制键盘还是普通键盘?
非常感谢您的帮助!
最佳答案
你需要使用 textfied 的 inputAccessoryView 属性
txtfld.keyboardType=UIKeyboardTypeDecimalPad;
txtfld.inputAccessoryView=[self toolBarForKeyboardAccessory];
然后
-(UIToolbar *)toolBarForKeyboardAccessory
{
UIToolbar *keyboardToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, 44)];
keyboardToolbar.barStyle = UIBarStyleDefault;
UIBarButtonItem* flexSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
UIBarButtonItem* cancelButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(cancelButtonClicked:)];
CGRect rect = CGRectMake(1, 5.0, 250, 30);
KeyboardTextField = [[UITextField alloc] initWithFrame:rect];
KeyboardTextField.borderStyle = UITextBorderStyleRoundedRect;
KeyboardTextField.font = [UIFont systemFontOfSize:17.0];
KeyboardTextField.delegate = self;
UIBarButtonItem *textFieldItem = [[UIBarButtonItem alloc] initWithCustomView:KeyboardTextField] ;
[keyboardToolbar setItems:[NSArray arrayWithObjects: flexSpace,textFieldItem,flexSpace, cancelButton,flexSpace, nil] animated:NO];
return keyboardToolbar;
}
关于iphone - 知道显示的是哪个键盘,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18231122/