问题描述
可能的重复:
android中px、dp、dip和sp的区别
我是 Android 新手,我正在尝试本教程一个>
I am new to Android and I was trying out this tutorial
在那个教程中,他们对 textSize 属性使用单位sp",对其他属性使用单位dp".
In that tutorial, they used the unit "sp" for textSize attribute and "dp" for other attributes.
请告诉我 sp 与 dp 有何不同?
Please tell me how sp differs from dp?
推荐答案
dp
有恒定比例过渡到 px
:dp = px * ratio代码>.
ratio
在任何特定设备上永远不会改变.
The dp
has constant ratio transition to px
: dp = px * ratio
. Where ratio
will never change on any particular device.
虽然sp
(s代表缩放)有缩放比例:sp = px * ratio * scale
.其中 ratio
永远不会改变,但 scale
是用户可配置的.此scale
可供需要更大字体大小的人使用,例如,更舒适地使用设备.
While sp
(s for scaled) has scalable ratio: sp = px * ratio * scale
. Where ratio
never changes, but scale
is user configurable. This scale
can be used by people who need larger font sizes, for example, to use device more comfortably.
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