一、基本概念
- dp：安卓中的相对大小
- dpi：( dot per inch )每英寸像素多少
- px：像素点
二、详细说明
px和dpi
px
平常所说的 1920×1080 只是像素数量，也就是 1920px×1080px, 代表手机高度上有 1920 个像素点，宽度上有 1080 个像素点。
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