介绍

XLIFF ，XML Localization Interchange File Format，XML本地化数据交换格式。

简介

Layout manager that allows the user to flip left and right
through pages of data. You supply an implementation of a
{@link PagerAdapter} to generate the pages that the view shows.

介绍

A toast provides simple feedback about an operation in a small popup. It only fills the amount of space required for the message and the current activity remains visible and interactive. For example, navigating away from an email before you send it triggers a “Draft saved” toast to let you know that you can continue editing later. Toasts automatically disappear after a timeout.

简介

The AlertDialog class allows you to build a variety of dialog designs and is often the only dialog class you’ll need. there are three regions of an alert dialog:

介绍

A StateListDrawable is a drawable object defined in XML that uses a several different images to represent the same graphic, depending on the state of the object. For example, a Button widget can exist in one of several different states (pressed, focused, or niether) and, using a state list drawable, you can provide a different background image for each state. You can describe the state list in an XML file. Each graphic is represented by an “item” element inside a single “selector” element. Each “item” uses various attributes to describe the state in which it should be used as the graphic for the drawable.
During each state change, the state list is traversed top to bottom and the first item that matches the current state is used—the selection is not based on the “best match,” but simply the first item that meets the minimum criteria of the state.

介绍

简单来说，shape就是用来在xml文件中定义形状，代码解析之后就可以当做Drawable一样使用

介绍

Layout which wraps an {@link android.widget.EditText} (or descendant) to show a floating label
when the hint is hidden due to the user inputting text.

简介

Snackbars provide lightweight feedback about an operation. They show a brief message at the
bottom of the screen on mobile and lower left on larger devices. Snackbars appear above all other
elements on screen and only one can be displayed at a time.

简介

Source Code中的介绍如下：

Floating action buttons are used for a special type of promoted action. They are distinguished
by a circled icon floating above the UI and have special motion behaviors related to morphing,
launching, and the transferring anchor point.

Floating action buttons come in two sizes: the default and the mini. The size can be
controlled with the {@code fabSize} attribute.

介绍

Palette， 英文翻译，调色板，意思比较接近，Google给它的定位应该是颜色萃取器。
看下Source Code
Palette , A helper class to extract prominent colors from an image.
A number of colors with different profiles are extracted from the image