_textField = [[UITextField alloc]initWithFrame:CGRectMake(15, 10, SCREENWIDTH-30, 50)];
_textField.placeholder = @"美食宣言";
_textField.font = [UIFont systemFontOfSize:13];
_textField.autocorrectionType = UITextAutocorrectionTypeNo;
_textField.clearButtonMode = UITextFieldViewModeWhileEditing;
[_textField addTarget:self action:@selector(textFieldDidChange:) forControlEvents:UIControlEventEditingChanged];
[self.view addSubview:_textField];
- (void)textFieldDidChange:(UITextField *)textField
{
if (textField.text.length > 99) {
textField.text = [textField.text substringToIndex:99];
UIAlertView *aler=[[UIAlertView alloc]initWithTitle:@"提醒" message:@"最多可输入99字" delegate:self cancelButtonTitle:@"确定" otherButtonTitles: nil];
[aler show];
}
}
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