iPhone键盘快速点击“下一步”按钮
问题描述:
在我的应用程序中,如果快速点击“下一步”按钮(返回键),会导致问题。有没有办法阻止用户这样做?我自己无法想到一个解决方案。iPhone键盘快速点击“下一步”按钮
我在一个UIScrollView与许多页面,并在某个页面上我有一个键盘弹出,所以用户可以键入到一个UITextField。点击下一个按钮会提示滚动视图滑动到下一页。但是,如果用户点击按钮太多,会导致滚动视图跳转。
下面的代码是当返回键被窃听,关键的部分是它调用[self setPage:6];
-(BOOL)textFieldShouldReturn:(UITextField *)textField
{
//Enter your first and last name
if (textField == firstnameField1)
{
//Put the text into a string to be saved
firstName1 = firstnameField1.text;
//Send user to next field (your surname)
[surnameField1 becomeFirstResponder];
}
else if (textField == surnameField1)
{
//Put text into a string to be saved
surname1 = surnameField1.text;
//Move to the next stage, enter partners name
if (pageController.currentPage == 4) {
[self setPage:5];
}
else if (pageController.currentPage == 3)
{
[self setPage:5];
}
currentStage = stage6;
}
//Enter your partners first and last name
if (textField == firstnameField2)
{
//Put the text into a string to be saved
firstName2 = firstnameField2.text;
//Send user to next field (your partners surname)
[surnameField2 becomeFirstResponder];
}
else if (textField == surnameField2)
{
//Put text into a string to be saved
surname2 = surnameField2.text;
//Move to the next stage, enter partners name
if (pageController.currentPage == 5) {
[self setPage:6];
}
else if (pageController.currentPage == 4)
{
[self setPage:6];
}
currentStage = stage7;
}
return YES;
}
这种方法setPage
低于:
-(void)setPage:(int)destinationPage
{
//Scroll to appropriate page in scroll view
CGRect frame = scrollViewController.frame;
frame.origin.x = frame.size.width * destinationPage;
frame.origin.y = 0;
[scrollViewController scrollRectToVisible:frame animated:YES];
}
感谢。
“它导致问题”可以是任何事情 - 更详细地描述您的问题! – JonasG 2012-01-10 21:08:14
它会导致什么问题? – 2012-01-10 21:08:15
添加了代码示例,对于之前缺乏细节感到抱歉。 – 2012-01-10 21:34:11