我有一个你可以在这看到的视图。
你可以看到我有一个标题图像,下面有很多文本字段。只有UITextfields Adres - 邮政编码 - Gemeente - Tel.nr - 电子邮件 - BTWnr。正在键盘后面消失。 我有一些代码,适用于Adres的UITextfield。但是当我想要实现更多时,它总是将动画用于Adres的UITextfield。
以下是我在代码中的内容
#define kOFFSET_FOR_KEYBOARD 80.0
#define kOFFSET_FOR_KEYBOARD2 120.0
-(void)keyboardWillShow {
NSLog(@"Keyboard frame now is %f",self.keyboardView.frame.origin.y);
// Animate the current view out of the way
if (self.keyboardView.frame.origin.y >= 198)
{
NSLog(@"keyboardWillShow 1");
[self setViewMovedUp2:NO];
}
else if (self.keyboardView.frame.origin.y < 198)
{
NSLog(@"keyboardWillShow 2");
[self setViewMovedUp:YES];
}
}
-(void)keyboardWillHide {
NSLog(@"Keyboard frame ATM %f",self.keyboardView.frame.origin.y);
if (self.keyboardView.frame.origin.y >= 198)
{
NSLog(@"keyboardWillHide 1");
[self setViewMovedUp:YES];
}
else if (self.keyboardView.frame.origin.y < 198)
{
NSLog(@"keyboardWillHide 2");
[self setViewMovedUp:NO];
}
}
-(void)textFieldDidBeginEditing:(UITextField *)sender
{
if ([sender isEqual:txtAdres])
{
NSLog(@"sender is adres");
//move the main view, so that the keyboard does not hide it.
if (self.keyboardView.frame.origin.y >= 198)
{
[self setViewMovedUp:YES];
}
}
if ([sender isEqual:txtPostcode])
{
NSLog(@"sender is postcode");
//move the main view, so that the keyboard does not hide it.
if (self.keyboardView.frame.origin.y >= 198)
{
[self setViewMovedUp2:YES];
}
}
}
//method to move the view up/down whenever the keyboard is shown/dismissed
-(void)setViewMovedUp:(BOOL)movedUp
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3]; // if you want to slide up the view
CGRect rect = self.keyboardView.frame;
if (movedUp)
{
// 1. move the view's origin up so that the text field that will be hidden come above the keyboard
// 2. increase the size of the view so that the area behind the keyboard is covered up.
rect.origin.y -= kOFFSET_FOR_KEYBOARD;
rect.size.height += kOFFSET_FOR_KEYBOARD;
}
else
{
// revert back to the normal state.
rect.origin.y += kOFFSET_FOR_KEYBOARD;
rect.size.height -= kOFFSET_FOR_KEYBOARD;
}
self.keyboardView.frame = rect;
[UIView commitAnimations];
}
-(void)setViewMovedUp2:(BOOL)movedUp
{
NSLog(@"setViewMovedUp2 called");
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3]; // if you want to slide up the view
CGRect rect = self.keyboardView.frame;
if (movedUp)
{
// 1. move the view's origin up so that the text field that will be hidden come above the keyboard
// 2. increase the size of the view so that the area behind the keyboard is covered up.
rect.origin.y -= kOFFSET_FOR_KEYBOARD2;
rect.size.height += kOFFSET_FOR_KEYBOARD2;
}
else
{
// revert back to the normal state.
rect.origin.y += kOFFSET_FOR_KEYBOARD2;
rect.size.height -= kOFFSET_FOR_KEYBOARD2;
}
self.keyboardView.frame = rect;
[UIView commitAnimations];
}
在我的ViewWillAppear中,我这样做
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillShow)
name:UIKeyboardWillShowNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillHide)
name:UIKeyboardWillHideNotification
object:nil];
有人可以帮我吗?
答案 0 :(得分:1)
请尝试使用这个...我希望它可以帮到你。并且你可以把你的价值放在你希望你的文本区域的200行。
CGFloat avaliableHeight = applicationFrame.size.height - 200;
- (void)scrollViewToCenterOfScreen:(UIView *)theView
{
CGFloat viewCenterY = theView.center.y;
CGRect applicationFrame = [[UIScreen mainScreen] applicationFrame];
CGFloat avaliableHeight = applicationFrame.size.height - 200;
CGFloat y = viewCenterY - avaliableHeight / 2.0f;
if (y < 0)
{
y = 0;
}
[scrollView setContentOffset:CGPointMake(0, y) animated:YES];
}
-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
[self scrollViewToCenterOfScreen:textField];
return YES;
}
答案 1 :(得分:0)
我建议,使用替换库TPKeyboardAvoiding来处理移动视图的所有工作,当显示键盘时,它是一种非常简单的实现方法
答案 2 :(得分:0)
我昨天实际上遇到过这个问题。这是我的代码:
#define kOFFSET_FOR_KEYBOARD 80.0
//This decides how many pixels to move the view
-(void)keyboardWillShow
{
// Animate the current view out of the way
if (self.view.frame.origin.y >= 0)
{
[self setViewMovedUp:YES];
}
else if (self.view.frame.origin.y < 0)
{
[self setViewMovedUp:NO];
}
}
-(void)keyboardWillHide
{
if (self.view.frame.origin.y >= 0)
{
[self setViewMovedUp:YES];
}
else if (self.view.frame.origin.y < 0)
{
[self setViewMovedUp:NO];
}
}
-(void)textFieldDidBeginEditing:(UITextField *)sender
{
if ([sender isEqual:doNotCover])
{
//move the main view, so that the keyboard does not hide it.
if (self.view.frame.origin.y >= 0)
{
[self setViewMovedUp:YES];
}
}
}
//method to move the view up/down whenever the keyboard is shown/dismissed
-(void)setViewMovedUp:(BOOL)movedUp
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3]; // if you want to slide up the view
CGRect rect = self.view.frame;
if (movedUp)
{
// 1. move the view's origin up so that the text field that will be hidden come above the keyboard
// 2. increase the size of the view so that the area behind the keyboard is covered up.
rect.origin.y -= kOFFSET_FOR_KEYBOARD;
rect.size.height += kOFFSET_FOR_KEYBOARD;
}
else
{
// revert back to the normal state.
rect.origin.y += kOFFSET_FOR_KEYBOARD;
rect.size.height -= kOFFSET_FOR_KEYBOARD;
}
self.view.frame = rect;
[UIView commitAnimations];
}
-(void)setViewMovedUp:(BOOL)movedUp
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3]; // if you want to slide up the view
CGRect rect = self.view.frame;
if (movedUp)
{
// 1. move the view's origin up so that the text field that will be hidden come above the keyboard
// 2. increase the size of the view so that the area behind the keyboard is covered up.
rect.origin.y -= kOFFSET_FOR_KEYBOARD;
rect.size.height += kOFFSET_FOR_KEYBOARD;
}
else
{
// revert back to the normal state.
rect.origin.y += kOFFSET_FOR_KEYBOARD;
rect.size.height -= kOFFSET_FOR_KEYBOARD;
}
}
self.view.frame = rect;
[UIView commitAnimations];
- (void)viewWillAppear:(BOOL)animated
{
// register for keyboard notifications
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillShow)
name:UIKeyboardWillShowNotification
object:nil];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(keyboardWillHide)
name:UIKeyboardWillHideNotification
object:nil];
}
- (void)viewWillDisappear:(BOOL)animated
{
// unregister for keyboard notifications while not visible.
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIKeyboardWillShowNotification
object:nil];
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIKeyboardWillHideNotification
object:nil];
}