java - 如何将标签绑定到支持类中的文本？

Question

如何将 GWT 标签绑定到视图支持类中的字符串属性？

Login.ui.xml:
Welcome <g:Label text="{textFromJavaBackingClass}" />

class Login {
  String userName;
  String getUserName() { return userName; }
}

如何将值绑定到String userName？

Answer 1

在xml中声明类

   <ui:with field="myclass" type='package.ClassName' />

在 Ui 活页夹中写入

g:Label text='{myclass.getUsername}'></g:Label>

这是未来的参考

Answer 2

Let's say you have a i18n class MyI18n which extends Messages

Just include the following

<ui:with field="i18n" type="MyI18n"/>

Then

Welcome <g:Label text="{i18n.textFromJavaBackingClass}" />

Note : MyI18n is actually not required to extends Messages, this is just the common way to call any no-arg method.

<ui:with field="clazz" type="AnyClass"/>

Welcome <g:Label text="{clazz.anyMehtodWhichDoesNotTakeArgs}" />