If you add the menu as a child of the label itself, then the menu might not show up at all because the label will measure the text that it holds and create a dimension that fits the text only.

如果您将菜单添加为标签的子元素，那么菜单根本就不会显示，因为标签将仅度量它所包含的文本，然后创建一个符合文本的大小。

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Listing 1 shows how to create a simple text label.

清单1展示了如何创建一个简单的文本标签。

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In the next row, enter the field label Topic, and then create a text field called Chat_Topic.

在下面一行中输入字段标题Topic，然后创建一个文本字段Chat _ Topic。

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