android - small、normal、large 和 xlarge 分别有多大？

Question

我知道 http://developer.android.com/guide/practices/screens_support.html 中有一段关于物理屏幕尺寸的类别，但图表非常粗糙。当屏幕停止正常并属于大类别时？等等。我的意思是物理尺寸，而不是 dpi。类别中的屏幕尺寸有哪些具体限制？

Answer 1

详细说明 John Boker 的回答...

xlarge screens are at least 960dp x 720dp
large screens are at least 640dp x 480dp
normal screens are at least 470dp x 320dp
small screens are at least 426dp x 320dp

并且由于 160dp 大约 等于 1in 在每个设备上:

Density-independent Pixels - An abstract unit that is based on the physical density of the screen. These units are relative to a 160 dpi (dots per inch) screen, on which 1dp is roughly equal to 1px.

http://developer.android.com/guide/topics/resources/more-resources.html#Dimension

物理尺寸可以近似计算如下:

xlarge screens are at least 6in x 4.5in
large screens are at least 4in x 3in
normal screens are at least 2.9375in x 2in
small screens are at least 2.6625in x 2in