简介
微调框提供一种方法,让用户可以从值集中快速选择一个值。默认状态下,微调框显示其当前所选的值。 触摸微调框可显示下拉菜单,其中列有所有其他可用值,用户可从中选择一个新值。
Container for a tabbed window view. This object holds two children: a set of tab labels that the
user clicks to select a specific tab, and a FrameLayout object that displays the contents of that
page. The individual elements are typically controlled using this container object, rather than
setting values on the child elements themselves.
TabHost ,标签视图的容器。容器包含两个孩子节点,一个用来存放一系列的标签,点击来选择对应的窗口;一个是FrameLayout用来存放页面具体内容。这些独立的元素通常用TabHost来控制,而不是在视图内部通过设置值来实现
A text field allows the user to type text into your app. It can be either single line or multi-line. Touching a text field places the cursor and automatically displays the keyboard. In addition to typing, text fields allow for a variety of other activities, such as text selection (cut, copy, paste) and data look-up via auto-completion.
You can add a text field to you layout with the EditText object. You should usually do so in your XML layout with a < EditText > element.
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