容器在验证后不会自动调整大小 [英] Container doesn't resize itself after invoking validate

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问题描述

通过 add remove 手动交换组件后,我调用 validate()放在容器上。根据文档,

After manually swapping components via add and remove, I invoke validate() on the container. According to the documentation,


validate方法用于使容器再次布局其
子组件
。在显示容器
之后,修改此容器的
子组件(将其添加到容器中或从容器中删除,或者更改了
与布局相关的信息)时,应调用此方法。

The validate method is used to cause a container to lay out its subcomponents again. It should be invoked when this container's subcomponents are modified (added to or removed from the container, or layout-related information changed) after the container has been displayed.

短语 再次布置其子组件使我认为容器会相应地调整自身大小,但不会。相反,在调用 validate()之后,我还需要调用 pack()以便查看其所有子组件。 。

The phrase "lay out its subcomponents again" makes me think that the container will resize itself accordingly, but it doesn't. Instead, after invoking validate(), I need to invoke pack() as well in order to view all its subcomponents.

为什么?我是在做错什么吗?

Why is this? Am I doing something wrong?

推荐答案

(可能是由于这种含糊不清,说明在最新的JavaDoc

(may be due this ambiguity the description is changed in latest javaDoc )

JavaDoc 7 NOT 的说法,


validate方法用于引起容器再次布置其子组件

The validate method is used to cause a container to lay out its subcomponents again..

而再次需要 pack()

请注意 pack()清楚地说,


使此窗口的大小适合其子组件的首选大小和布局。

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