UITextField的使用总结

   textField = [[UITextField alloc] initWithFrame:CGRectMake(120.0f, 80.0f, 150.0f, 30.0f)];
        [textField setBorderStyle:UITextBorderStyleRoundedRect]; //外框类型
        textField.placeholder = @"password"; //默认显示的字
        textField.secureTextEntry = YES; //密码
        textField.autocorrectionType = UITextAutocorrectionTypeNo;
        textField.autocapitalizationType = UITextAutocapitalizationTypeNone;
        textField.returnKeyType = UIReturnKeyDone;
        textField.clearButtonMode = UITextFieldViewModeWhileEditing; //编辑时会出现个修改X
        textField.delegate = self;

- (BOOL)textFieldShouldReturn:(UITextField *)textField
{
        [self.textField resignFirstResponder];
        return YES;
}