在Android的小数设置DP [英] Setting dp in decimals in Android

问题描述

我想设置在Android的2个元素之间的距离。我已经设置了保证金1DP，我在想，距离比我想这是更多的。我认为0.5dp会就好了。是否有可能设置小数保证金为我想？如果是这样，什么是支持的最低DP？

I am trying to set the distance between 2 elements in Android. The margin I have set is 1dp and I was thinking that the distance is more than what I wanted it to be. I thought that 0.5dp would be just fine. Is it possible to set the margin in decimals as I am trying? If so, what is the minimum dp that is supported?

推荐答案

是的，你可以使用0.5dp或者你想永远十进制数，但要小心。当你的DP转换为像素他们乘显示逻辑密度和围捕。

Yeah, you can use 0.5dp or what ever decimal number you want, but be careful. When your dp converted to pixels they multiplied by display logic density and rounded up.

如果您的DP = 0.1比显示HDPI你（INT）（0.1 * 1.5 + 0.5）= 1像素。 （1.5是华电国际的显示逻辑密度）

If your dp = 0.1 than for hdpi display you get (int)(0.1 * 1.5 + 0.5) = 1px. (1.5 is logical density for hdpi display)

如果您的DP = 0.5，对于MDPI显示你（INT）（0.5 * 1 + 0.5）= 1像素的（1是适用于mdpi显示逻辑密度）

If your dp = 0.5 that for mdpi display you get (int)(0.5 * 1 + 0.5) = 1px (1 is logical density for mdpi display)

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