iPhone开发 当输入的键盘会挡住UITextField的处理事件
//添加键盘的监听事件
[[NSNotificationCenterdefaultCenter] addObserver:selfselector:@selector(keyboardWasShown:) name:UIKeyboardDidShowNotificationobject:nil];
#pragma mark 滚动scrollview 使被隐藏的textfield显示在屏幕正确的位置(软键盘的上方)
- (void)keyboardWasShown:(NSNotification*)aNotification {
NSDictionary* info = [aNotification userInfo];
//键盘的大小
CGSize kbSize = [[info objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
CGRect aRect = self.view.frame;
aRect.size.height -= kbSize.height;
// 输入项区域被认为定高
CGPoint activeFieldRect = activeText.frame.origin;
int actHeight=activeFieldRect.y;
int actSelfHeight=activeText.frame.size.height;
if(aRect.size.height-actHeight-actSelfHeight<0)
{
CGPoint scrollPoint = CGPointMake(0.0, -(aRect.size.height-actSelfHeight-actHeight));
[scView setContentOffset:scrollPoint animated:YES];
}
}
摘自 凡娃软件
补充:移动开发 , IOS ,