在我的应用程序中,当我单击文本字段时,键盘隐藏它。请帮助我 - 当我点击文本字段时,如何移动视图。我在textFieldDidBeginEditing:
使用此代码移动视图,以便键盘不隐藏文本字段
self.tableView.scrollIndicatorInsets = UIEdgeInsetsMake(0, 0, 216, 0);
self.tableView.contentInset = UIEdgeInsetsMake(0, 0, 216, 0);
但它不起作用。
在我的应用程序中,当我单击文本字段时,键盘隐藏它。请帮助我 - 当我点击文本字段时,如何移动视图。我在textFieldDidBeginEditing:
使用此代码移动视图,以便键盘不隐藏文本字段
self.tableView.scrollIndicatorInsets = UIEdgeInsetsMake(0, 0, 216, 0);
self.tableView.contentInset = UIEdgeInsetsMake(0, 0, 216, 0);
但它不起作用。
你可以做到以下几点,但首先要确保你已经设置的UITextField代表你的自我和
#define kOFFSET_FOR_KEYBOARD 350;
在顶部。这是你想要多远视图要移位
//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
[UIView setAnimationBeginsFromCurrentState:YES];
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.
if (rect.origin.y == 0) {
rect.origin.y -= kOFFSET_FOR_KEYBOARD;
//rect.size.height += kOFFSET_FOR_KEYBOARD;
}
}
else
{
if (stayup == NO) {
rect.origin.y += kOFFSET_FOR_KEYBOARD;
//rect.size.height -= kOFFSET_FOR_KEYBOARD;
}
}
self.view.frame = rect;
[UIView commitAnimations];
}
- (void)keyboardWillHide:(NSNotification *)notif {
[self setViewMovedUp:NO];
}
- (void)keyboardWillShow:(NSNotification *)notif{
[self setViewMovedUp:YES];
}
- (void)textFieldDidBeginEditing:(UITextField *)textField {
stayup = YES;
[self setViewMovedUp:YES];
}
- (void)textFieldDidEndEditing:(UITextField *)textField {
stayup = NO;
[self setViewMovedUp:NO];
}
- (void)viewWillAppear:(BOOL)animated
{
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillShow:)
name:UIKeyboardWillShowNotification object:self.view.window];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide:)
name:UIKeyboardWillHideNotification object:self.view.window];
}
- (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];
}
你不应该相信textFieldDidBeginEditing:
调整为键盘,因为这种方法将被调用,即使用户使用物理键盘,其中屏幕键盘就会打字不被显示。
取而代之的是听取UIKeyboardWillShowNotification
,这只有在键盘实际显示时才会触发。您需要执行三个步骤:
userInfo
字典中确定键盘的实际大小。尺寸将不同于风景/肖像以及不同的设备。contentInset
。你可以做动画,通知甚至会告诉你键盘动画的持续时间。你会发现更多的信息和示例代码here
的可能重复[如何使一个的UITextField向上移动时,键盘的存在(http://stackoverflow.com/questions/1126726/how-to -make-a-uitextfield-move-up-when-keyboard-is-present) – 2011-05-13 05:54:20