在UITextField上点击时，将UIButton移动到键盘上方

问题描述

我有3个文本字段和2个按钮。当我点击文本字段时，键盘出现，并且由于键盘而隐藏了2个按钮。是否可以移动键盘上方的按钮，当键盘退出时，按钮应该回到初始位置。

I have 3 text-fields and 2 buttons. When I tap on text-field, keyboard comes up and the 2 buttons are hidden because of the keyboard. Is it possible to move the buttons above the keyboard and when the keyboard resigns the buttons should go back to their initial position.

推荐答案

//Declare a delegate, assign your textField to the delegate and then

-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField {
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidShow:) name:UIKeyboardDidShowNotification object:nil];
    return YES;
}


- (BOOL)textFieldShouldEndEditing:(UITextField *)textField {
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardDidHide:) name:UIKeyboardDidHideNotification object:nil];

    [self.view endEditing:YES];
    return YES;
}


- (void)keyboardDidShow:(NSNotification *)notification
{
    // Assign new frame to your view
    [self.view setFrame:CGRectMake(0,-110,320,460)]; //here taken -20 for example i.e. your view will be scrolled to -20. change its value according to your requirement.

}

-(void)keyboardDidHide:(NSNotification *)notification
{
    [self.view setFrame:CGRectMake(0,0,320,460)];
}

编辑： - 使用[UIScreen mainScreen]界限为视图指定宽度和高度] .size

Edit :- Assign width and height to View using [UIScreen mainScreen] bounds].size

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