UITextView textViewShouldEndEditing

最近做到UITextView, 在取消键盘事件上我以为和UITextField差不多，于是我这样写：

1  UITextView *textView = [[UITextView alloc] initWithFrame:CGRectMake(10, 40, 280, 240)];
2  [textView setBackgroundColor:[UIColor greenColor]];
3  [textView setFont:[UIFont fontWithName:@"MyriadPro-Regular" size:13]];
4  [textView setTextColor:[UIColor blackColor]];
5  [textView setText:@"Your Message...."];
6  [textView setBackgroundColor:[UIColor clearColor]];
7  [textView setDelegate:self];
8  [textView setReturnKeyType:UIReturnKeyDone];

    我以为，当按下键盘上的“完成”按钮后，将被调用

1 - (BOOL)textViewShouldEndEditing:(UITextView *)textView {
2  NSLog(@"called");
3  [textView resignFirstResponder];
4  return YES;
5 }

然而我忘记了textView有换行的事件，即

点击Return，它只是在textview里换行。所以，如果你想捕捉到换行\n时取消响应resignFirstResponder，可以这样

1 - (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text {
2  if ( [text isEqualToString:@"\n"] ) {
3   [textView resignFirstResponder];
4  }
5  return YES;
6 }

posted on 2015-07-16 13:30 MichaelMao 阅读(804) 评论(0) 编辑收藏举报