1. 屏幕分辨率对应关系（drawable/values）
| 别称 | 分辨率 | drawable文件夹 | values文件夹 | DPI | 比例 | 图标标准 | density |
|---|---|---|---|---|---|---|---|
| QVGA | 320x240 | drawable_ldpi | values_ldpi | 120 | 4:3 | -x- | density |
| HVGA | 480x320 | drawable_mdpi | values_mdpi | 160 | 4:3 | 48x48 | density |
| WVGA | 800x480 | drawable_hdpi | values_hdpi | 240 | 5:3 | 72x72 | density |
| 720p | 1280x720 | drawable_xhdpi | values_xhdpi | 320 | 16:9 | 96x96 | density |
| 1080p | 1920x1080 | drawable_xxhdpi | values_xxhdpi | 480 | 16:9 | 144x144 | density |
| 2k | 2560x1440 | drawable_xxxhdpi | values_xxxhdpi | 640 | 16:9 | 192x192 | density |
其他分辨率
4:3
VGA 640480 (Video Graphics Array)
QVGA 320240 (Quarter VGA)
HVGA 480320 (Half-size VGA)
SVGA 800600 (Super VGA)
5:3
WVGA 800*480 (Wide VGA)
16:9
FWVGA 854480 (Full Wide VGA)
HD 19201080 High Definition
QHD 960540
720p 1280720 标清
1080p 1920*1080 高清
px/dp换算工具类
/**
* 根据手机的分辨率从 dp 的单位 转成为 px(像素)
*/
fun dip2px(context: Context, dpValue: Float): Int {
val density = context.resources.displayMetrics.density
return (dpValue * density + 0.5f).toInt()
}
/**
* 根据手机的分辨率从 px(像素) 的单位 转成为 dp
*/
fun px2dip(context: Context, pxValue: Float): Int {
val density = context.resources.displayMetrics.density
return (pxValue / density + 0.5f).toInt()
}
2. Android SDK版本对应关系
官方文档：https://developer.android.google.cn/about/versions?hl=zh_cn
| 平台版本 | API级别（SDK版本） | 版本代号 | 发布时间 |
|---|---|---|---|
| Android 14 | 34 | UpsideDownCake | 2023.4 |
| Android 13 | 33 | Tiramisu | 2022.8 |
| Android 12.1 | 32 | Sv2 | 2021.12 |
| Android 12 | 31 | S | 2021.10 |
| Android 11 | 30 | R | 2020.9 |
| Android 10.0 | 29 | Q | 2019.8 |
| Android 9.0 | 28 | Pie | 2018.8 |
| Android 8.1 | 27 | Oreo | 2017.12 |
| Android 8.0 | 26 | Oreo | 2017.8 |
| Android 7.1.1 | 25 | Nougat | 2016.10 |
| Android 7.0 | 24 | Nougat | 2016.8 |
| Android 6.0.1 | 23 | Marshmallow | 2015.12 |
| Android 6.0 | 23 | Marshmallow | 2015.10 |
| Android 5.1 | 22 | Lollipop | 2015.3 |
| Android 5.0 | 21 | Lollipop | 2014.11 |
| Android 4.4W | 20 | KITKAT_WATCH | 2014.6 |
| Android 4.4 | 19 | KitKat | 2013.10 |
| Android 4.3 | 18 | Jelly Bean | 2013.7 |
| Android 4.2 | 17 | Jelly Bean | 2012.10 |
| Android 4.1 | 16 | Jelly Bean | 2012.6 |
| Android 4.03 | 15 | Ice Cream Sandwich | 2011.12 |
| Android 4.0 | 14 | Ice Cream Sandwich | 2011.10 |
| Android 3.2 | 13 | Honeycomb | 2011.7 |
| Android 3.1 | 12 | Honeycomb | 2011.5 |
| Android 3.0 | 11 | Honeycomb | 2011.2 |
| Android 2.3.3 | 10 | Gingerbread | 2011.2 |
| Android 2.3.1 | 9 | Gingerbread | 2010.12 |
| Android 2.2 | 8 | Froyo | 2010.5 |
| Android 2.1 | 7 | Eclair | 2010.1 |
| Android 2.0.1 | 6 | Eclair | 2009.12 |
| Android 2.0 | 5 | Eclair | 2009.10 |
| Android 1.6 | 4 | Donut | 2009.9 |
| Android 1.5 | 3 | Cupcake | 2009.4 |
| Android 1.1 | 2 | - | 2009.2 |
| Android 1.0 | 1 | - | 2008.9 |
3. Gradle插件对应关系
官方文档：https://developer.android.google.cn/static/studio/releases/gradle-plugin?hl=th
| 插件版本 | 所需的最低 Gradle 版本 |
|---|---|
| 8.1 | 8.0 |
| 8.0 | 8.0 |
| 7.4 | 7.5 |
| 7.3 | 7.4 |
| 7.2 | 7.3.3 |
| 7.1 | 7.2 |
| 7.0 | 7.0 |
| 4.2.0+ | 6.7.1 |
4. 透明度对应关系
| 透明度 | 十六进制值 |
|---|---|
| 100% 全透明 | 00 |
| 99% | 03 |
| 98% | 05 |
| 97% | 08 |
| 96% | 0A |
| 95% | 0D |
| 94% | 0F |
| 93% | 12 |
| 92% | 14 |
| 91% | 17 |
| 90% | 1A |
| 89% | 1C |
| 88% | 1F |
| 87% | 21 |
| 86% | 24 |
| 85% | 26 |
| 84% | 29 |
| 83% | 2B |
| 82% | 2E |
| 81% | 30 |
| 80% | 33 |
| 79% | 36 |
| 78% | 38 |
| 77% | 3B |
| 76% | 3D |
| 75% | 40 |
| 74% | 42 |
| 73% | 45 |
| 72% | 47 |
| 71% | 4A |
| 70% | 4D |
| 69% | 4F |
| 68% | 52 |
| 67% | 54 |
| 66% | 57 |
| 65% | 59 |
| 64% | 5C |
| 63% | 5E |
| 62% | 61 |
| 61% | 63 |
| 60% | 66 |
| 59% | 69 |
| 57% | 6B |
| 56% | 6E |
| 56% | 70 |
| 55% | 73 |
| 54% | 75 |
| 53% | 78 |
| 52% | 7A |
| 51% | 7D |
| 50% 半透明 | 80 |
| 49% | 82 |
| 48% | 85 |
| 47% | 87 |
| 46% | 8A |
| 45% | 8C |
| 44% | 8F |
| 43% | 91 |
| 42% | 94 |
| 41% | 96 |
| 40% | 99 |
| 39% | 9C |
| 38% | 9E |
| 37% | A1 |
| 36% | A3 |
| 35% | A6 |
| 34% | A8 |
| 33% | AB |
| 32% | AD |
| 31% | B0 |
| 30% | B3 |
| 28% | B5 |
| 28% | B8 |
| 27% | BA |
| 26% | BD |
| 25% | BF |
| 24% | C2 |
| 23% | C4 |
| 22% | C7 |
| 21% | C9 |
| 20% | CC |
| 19% | CF |
| 18% | D1 |
| 17% | D4 |
| 16% | D6 |
| 15% | D9 |
| 14% | DB |
| 13% | DE |
| 12% | E0 |
| 11% | E3 |
| 10% | E6 |
| 9% | E8 |
| 8% | EB |
| 7% | ED |
| 6% | F0 |
| 5% | F2 |
| 4% | F5 |
| 3% | F7 |
| 2% | FA |
| 1% | FC |
| 0% 不透明 | FF |
参考文档：
https://developer.android.google.cn/about/versions?hl=zh_cn
https://blog.csdn.net/kv110/article/details/119857755
