android - 在 Photoshop 文件中，字体大小是 20px，在 android 中，sp 是什么？是一样的吗？是指 20px= 20sp 还是其他？

Question

Photoshop 文件的字体大小为 20px。 Android 中的 sp 是什么？是一样的，就是20px = 20sp还是别的？

开发人员要求的是 sp 而不是 px。我如何知道或定义 Photoshop 中的 sp？

Answer 1

• px 是一个像素。
• sp 是与比例无关的像素。
• dip 是与密度无关的像素。

你会用

• sp 字体大小

• dip 用于其他一切。

  倾角==dp

来自 Android Developers center :

px
Pixels - corresponds to actual pixels on the screen.

in
Inches - based on the physical size of the screen.
1 Inch = 2.54 centimeters

mm
Millimeters - based on the physical size of the screen.

pt
Points - 1/72 of an inch based on the physical size of the screen.

dp
Density-independent Pixels - an abstract unit that is based on the physical density of the screen. These units are relative to a 160 dpi screen, so one dp is one pixel on a 160 dpi screen. The ratio of dp-to-pixel will change with the screen density, but not necessarily in direct proportion. Note: The compiler accepts both "dip" and "dp", though "dp" is more consistent with "sp".

sp
Scale-independent Pixels - this is like the dp unit, but it is also scaled by the user's font size preference. It is recommend you use this unit when specifying font sizes, so they will be adjusted for both the screen density and user's preference.

您可以使用 this转换各种选项以在像素大小之间转换