转自：http://blog.sina.com.cn/s/blog_4b20ae2e0101h84o.html
| DENSITY | SIZE | LOCATION | RATIO | SCREEN | MARGIN |
|---|---|---|---|---|---|
| XXXHDPI | 192×192 | drawable-xxxhdpi | 4 | 640 DPI | 12 to 16 pixels |
| XXHDPI | 144×144 | drawable-xxhdpi | 3 | 480 DPI | 8 to 12 pixels |
| XHDPI | 96×96 | drawable-xhdpi | 2 | 320 DPI | 6 to 8 pixels |
| HDPI | 72×72 | drawable-hdpi | 1.5 | 240 DPI | 4 to 6 pixels |
| MDPI | 48×48 | drawable-mdpi | 1 | 160 DPI | 3 to 4 pixels |
| MDPI | 48×48 | drawable (Cupcake) | 1 | 160 DPI | 3 to 4 pixels |
| LDPI | 36×36 | drawable-ldpi | 0.75 | 120 DPI | 2 to 3 pixels |
| NA | 512×512 | Google Play | NA | NA | As required |