我想载入的价值，因为它是。 我有两个 dimension.xml 文件，一个在 /res/values​​/dimension.xml ，另一个在 /res/values​​-sw360dp/dimension.xml 。

I'd like to load the value as it is. I have two dimension.xml files, one in /res/values/dimension.xml and the other one in /res/values-sw360dp/dimension.xml.

从源头code我愿意做这样的事情

From source code I'd like to do something like

getResources().getDimension(R.dimen.tutorial_cross_marginTop);

这工作，但我得到的值乘以倍屏幕像素密度系数（1.5华电国际，2.0 xhdpi，等等）。

This works but the value I get is multiplied times the screen density factor (1.5 for hdpi, 2.0 for xhdpi, etc).

我也试着做

getResources().getString(R.dimen.tutorial_cross_marginTop);

这工作，但我得到了在蘸结尾的字符串...

This works but I get a string that ends in "dip"...

感谢您的帮助！

推荐答案

在我dimens.xml我有

In my dimens.xml I have

<dimen name="test">48dp</dimen>

在code。如果我这样做

In code If I do

int valueInPixels = (int) getResources().getDimension(R.dimen.test)

这将返回72为文档的状态（在我的情况48dp×1.5）乘以电流密度电话

this will return 72 which as docs state is multiplied by density of current phone (48dp x 1.5 in my case)

完全一样的文档状态：

检索的尺寸为特定资源ID。单位转换   是基于与所述资源相关联的当前DisplayMetrics

Retrieve a dimensional for a particular resource ID. Unit conversions are based on the current DisplayMetrics associated with the resources.

所以，如果你想确切的DP值，就像在XML只是把它与DisplayMetrics密度

so if you want exact dp value just as in xml just divide it with DisplayMetrics density

int dp = (int) (getResources().getDimension(R.dimen.test) / getResources().getDisplayMetrics().density)

DP将是现在的48

dp will be 48 now