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是否有哪些设备具有抽象 dpi 和屏幕尺寸的列表？

发布于 2024-11-17 02:31:52 字数 97 浏览 0 评论 0原文

据我了解，设备的匹配 dpi 和尺寸限定符不是基于实际的屏幕属性（物理 dpi 和尺寸），而是基于设备制造商预定义的内容。

是否有不同设备的抽象 dpi/尺寸列表？

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晨敛清荷 2024-11-24 02:31:52

我认为这其中存在一些误会。这并不是一场免费的比赛，制造商可以选择他们想要的任何东西。确实，他们在选择密度方面有一定的灵活性，但不是很多——最终密度与物理屏幕分辨率相结合明确地产生了屏幕桶，并且映射发生的方式由平台指定。此外，所选择的密度几乎总是您所期望的设备实际 DPI。制造商可能会通过提高密度来推动这一点——这会导致屏幕上的用户界面更大，并且可能会降低屏幕尺寸——但这种情况极为罕见。

所以。 320x240的屏幕只能是小尺寸低密度屏幕。没有别的了。

具有 480x320 屏幕的设备通常是正常尺寸的中等密度。

具有 480x800（或 x852）屏幕的设备在绝大多数情况下都是正常尺寸的高密度。有一些罕见的设备具有 480x800 大屏幕，例如 Dell Streak - 这些是中等密度屏幕和大水桶。你可以看出设备是这样的，因为……嗯，它有一个大屏幕。 :}

配备 qHD 屏幕的设备无法达到 xhdpi 存储桶（尝试一下，您最终会得到一个太小而无法兼容的屏幕），因此这些设备仍然是高密度，并且它们也仍然是正常尺寸，因为它们不是不够大，无法放入大桶中。换句话说，这只是另一个具有更多布局空间的手机屏幕。

您看到的 10 英寸平板电脑的分辨率为 1280x800 或 1280x720。这些是 mdpi 屏幕，位于 xlarge 桶中。Android

3.2 支持 7 英寸屏幕，通常为 1024x720 mdpi。这些最终会进入大尺寸的桶中。

当然，您可以想象到许多其他屏幕，但我不知道哪些设备附带它们，并且考虑到我们已经涵盖了小型、普通、大型和超大屏幕，因此它们确实没有什么太有趣的。例如，640x480 手机尺寸的屏幕将是 hdpi 密度和小屏幕桶。

I think there is some misunderstanding. This isn't a free-for-all where manufacturers can pick whatever they want. It is true that they have some flexibility in picking the density, but not a lot -- ultimately the density combined with the physical screen resolution explicitly results in a screen bucket and the way that mapping happens is specified by the platform. Also, the density selected is almost always going to be what you would expect give the actual DPI of the device. A manufacturer may push that with going to a higher density -- this results in a larger UI on the screen and likely a move down to a lower screen size bucket -- but this is extremely rare.

So. A 320x240 screen can only be a small size low density screen. Nothing else.

Devices with 480x320 screens are universally normal size medium density.

Devices with 480x800 (or x852) screens are the vast majority of the time a normal size high density. There are some rare devices with a large 480x800 screen like the Dell Streak -- these are a medium density screen and large bucket. You can tell a device is like this because... well, it has a large screen. :}

The devices shipping with qHD screens can't go up to the xhdpi bucket (try it, you end up with a screen too small to be compatible), so these are still high density and they are also still normal size because they aren't sufficiently large to be in the large bucket. In other words, this is just another phone screen with a little more space for layout.

The 10" tablets you see are 1280x800 or 1280x720. These are mdpi screens, and in the xlarge bucket.

Android 3.2 is supporting 7" screens which are generally 1024x720 mdpi. These end up in the large size bucket.

There are of course many other screens you can imagine, but I don't know off-hand of devices shipping with them and given that we have already covered small, normal, large, and xlarge there is really nothing too interesting about them. For example a 640x480 phone size screen would be hdpi density and small screen bucket.

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