在- (BOOL)textView:(UITextView)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString)text中监听replacementText，如果为回车则将键盘收起
同事可以设置textView.returnKeyType
-(BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range
replacementText:(NSString *)text
{
//如果为回车则将键盘收起
if ([text isEqualToString:@”\n”]) {
[textView resignFirstResponder];
return NO;
}
return YES;
}
