我有一个奇怪的问题。我有 3 个 UITextField 和 1 个 UITextView。我可以通过以下方式从一个 UITextField
移动到下一个 UITextField
:
- (BOOL) textFieldShouldReturn:(UITextField *)textField
{
NSInteger nextTag = textField.tag + 1;
//-- try to find next responde
UIResponder* nextResponder = [textField.superview viewWithTag:nextTag];
if (nextResponder)
{
//-- found next responce ,so set it
[nextResponder becomeFirstResponder];
}
else
{
[scrollView setContentOffset:CGPointMake(0, 0) animated:YES];
//-- not found remove keyboard
[textField resignFirstResponder];
return YES;
}
return YES;
}
一切正常,直到到达 UITexView
,然后我的光标移动到 TextView 的第二行,而不是 TextView 的第一行。
TextView 取自IB。
TextView 的代码:
- (void) textViewDidBeginEditing:(UITextView *)textView
{
optionalText.hidden = YES ;
[scrollView setContentOffset:CGPointMake(0, textView.center.y-100) animated:YES];
}
- (BOOL) textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
{
// Any new character added is passed in as the "text" parameter
if ([text isEqualToString:@"\n"])
{
// Be sure to test for equality using the "isEqualToString" message
[textView resignFirstResponder];
[scrollView setContentOffset:CGPointMake(0, 0) animated:YES];
// Return FALSE so that the final '\n' character doesn't get added
if ([[commentTxtView.text stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] length] == 0)
{
optionalText.hidden = NO ;
NSLog(@"Text View is null");
[scrollView setContentOffset:CGPointMake(0, 0) animated:YES];
}
return FALSE;
}
return TRUE;
}
看起来像这样:
可能是什么问题?为什么它不从 TextView 的第一行开始?
最佳答案
我敢打赌,如果 nextResponder
是您的 UITextField
,您的 textFieldShouldReturn:
应该返回 NO
。现在您总是返回 YES
,这意味着 key 可能会传递给 UITextView
,然后插入新行。
关于iphone - UITextView : Text starts from 2nd line of text view,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/8037679/