AI开发实战5-文本输入框(TextBox)的定制2

4.2 增加私有的属性

如果想增加只属于文本输入框的属性，如增加一个属性，用户可设置文本输入框只是用于输入电子邮箱，则需要修改TextBox的代码：

//属性变量

private boolean acceptsEmailAddressOnly;

 

/**获取属性值的函数

       * EmailAddress property getter method.

       *

       * @return {@code true} indicates that thetextbox accepts emailaddress only, {@code false} indicates

       *             that it accepts any text

       */

      @SimpleProperty(

             category= PropertyCategory.BEHAVIOR,

             description= "If true, then this text box accepts only emailaddress as keyboardinput.    ")

      publicboolean EmailAddressOnly() {

        return acceptsEmailAddressOnly;

      }

 

      /**设置属性值的函数

       * EmailAddressOnly property setter method.

       *

       * @param acceptsEmailAddressOnly {@code true}restricts input to emailaddress,

       * {@code false} allows any text

       */

      @DesignerProperty(editorType= PropertyTypeConstants.PROPERTY_TYPE_BOOLEAN, defaultValue ="False")

      @SimpleProperty(

             description= "If true, then this text box accepts only emailaddress as keyboardinput.    ")

      public voidEmailAddressOnly(boolean acceptsEmailAddressOnly) {

        if (acceptsEmailAddressOnly) {

           acceptsNumbersOnly= false;

             view.setInputType(

                    InputType.TYPE_CLASS_TEXT|

                    InputType.TYPE_TEXT_VARIATION_EMAIL_ADDRESS);

        } else {

             view.setInputType(InputType.TYPE_CLASS_TEXT| InputType.TYPE_TEXT_FLAG_MULTI_LINE);

        }

        this.acceptsEmailAddressOnly = acceptsEmailAddressOnly;

      }

 

定义好属性后，还需要在OdeMessages.java中添加属性的声明：

@DefaultMessage("EmailAddressOnly")

 @Description("")

 String EmailAddressOnlyProperties();

在OdeMessages_zh_CN.properties中添加中文字符串：

EmailAddressOnlyProperties = 仅限电子邮箱

最终的实现效果如下：