Android screen adaptation ratio

values-sw320dp  :  比例是2/3,  * 0.667。
 <resources>
    <!-- 1.5 -->

    <dimen name="size_5">3.33dp</dimen>
    <dimen name="size_8">5.33dp</dimen>
    <dimen name="size_10">6.67dp</dimen>
    <dimen name="size_12">8dp</dimen>
    <dimen name="size_15">10dp</dimen>
    <dimen name="size_20">13.33dp</dimen>
    <dimen name="size_25">16.67dp</dimen>
    <dimen name="size_30">20dp</dimen>
    <dimen name="size_40">26.67dp</dimen>
    <dimen name="size_50">33.33dp</dimen>
    <dimen name="size_60">40dp</dimen>
    <dimen name="size_70">46.67dp</dimen>
    <dimen name="size_80">53.33dp</dimen>
    <dimen name="size_100">66.67dp</dimen>
    <dimen name="size_120">80dp</dimen>
    <dimen name="size_150">100dp</dimen>
    <dimen name="size_180">120dp</dimen>
    <dimen name="size_200">133.34dp</dimen>
    <dimen name="size_250">166.67dp</dimen>
    <dimen name="size_280">186.67dp</dimen>
    <dimen name="size_300">200dp</dimen>
    <dimen name="size_350">233.33dp</dimen>
    <dimen name="size_500">333.33dp</dimen>
    <dimen name="text_small">8.33sp</dimen>
    <dimen name="text_middle">10sp</dimen>
    <dimen name="text_large">12sp</dimen>
    <dimen name="text_xlarge">14.67sp</dimen>
    <dimen name="text_xxlarge">18.67sp</dimen>

</resources>
values-sw360dp  :  比例是  * 0.75。

<resources>
    <!-- 1.33 -->

    <dimen name="size_5">3.76dp</dimen>
    <dimen name="size_8">6dp</dimen>
    <dimen name="size_10">7.5dp</dimen>
    <dimen name="size_12">9dp</dimen>
    <dimen name="size_15">11.28dp</dimen>
    <dimen name="size_20">15dp</dimen>
    <dimen name="size_25">18.8dp</dimen>
    <dimen name="size_30">22.56dp</dimen>
    <dimen name="size_40">30dp</dimen>
    <dimen name="size_50">37.5dp</dimen>
    <dimen name="size_60">44.78dp</dimen>
    <dimen name="size_70">52.63dp</dimen>
    <dimen name="size_80">60.15dp</dimen>
    <dimen name="size_100">75dp</dimen>
    <dimen name="size_120">89.56dp</dimen>
    <dimen name="size_150">112.78dp</dimen>
    <dimen name="size_180">135.34dp</dimen>
    <dimen name="size_200">150.38dp</dimen>
    <dimen name="size_250">186.57dp</dimen>
    <dimen name="size_280">210.53dp</dimen>
    <dimen name="size_300">225.56dp</dimen>
    <dimen name="size_350">263.16dp</dimen>
    <dimen name="size_500">375.93dp</dimen>
    <dimen name="text_small">9.4sp</dimen>
    <dimen name="text_middle">11.53sp</dimen>
    <dimen name="text_large">13.85sp</dimen>
    <dimen name="text_xlarge">16.54sp</dimen>
    <dimen name="text_xxlarge">21sp</dimen>

</resources>

values-sw400dp  :  比例是  * 0.834。

<resources>
    <!-- 1.2 -->

    <dimen name="size_5">4.17dp</dimen>
    <dimen name="size_8">6.67dp</dimen>
    <dimen name="size_10">8.34dp</dimen>
    <dimen name="size_12">10dp</dimen>
    <dimen name="size_15">12.5dp</dimen>
    <dimen name="size_20">16.67dp</dimen>
    <dimen name="size_25">20.83dp</dimen>
    <dimen name="size_30">25dp</dimen>
    <dimen name="size_40">33.33dp</dimen>
    <dimen name="size_50">41.7dp</dimen>
    <dimen name="size_60">50dp</dimen>
    <dimen name="size_70">58.33dp</dimen>
    <dimen name="size_80">66.67dp</dimen>
    <dimen name="size_100">83.33dp</dimen>
    <dimen name="size_120">100dp</dimen>
    <dimen name="size_150">125dp</dimen>
    <dimen name="size_180">150dp</dimen>
    <dimen name="size_200">166.67dp</dimen>
    <dimen name="size_250">208.34dp</dimen>
    <dimen name="size_280">233.33dp</dimen>
    <dimen name="size_300">250dp</dimen>
    <dimen name="size_350">291.67dp</dimen>
    <dimen name="size_500">416.67dp</dimen>
    <dimen name="text_small">10.42sp</dimen>
    <dimen name="text_middle">12.5sp</dimen>
    <dimen name="text_large">15sp</dimen>
    <dimen name="text_xlarge">18.33sp</dimen>
    <dimen name="text_xxlarge">23.33sp</dimen>

</resources>

values-sw480dp  :  比例是  * 1.0。

<resources>

    <dimen name="size_5">5dp</dimen>
    <dimen name="size_8">8dp</dimen>
    <dimen name="size_10">10dp</dimen>
    <dimen name="size_12">12dp</dimen>
    <dimen name="size_15">15dp</dimen>
    <dimen name="size_20">20dp</dimen>
    <dimen name="size_25">25dp</dimen>
    <dimen name="size_30">30dp</dimen>
    <dimen name="size_40">40dp</dimen>
    <dimen name="size_50">50dp</dimen>
    <dimen name="size_60">60dp</dimen>
    <dimen name="size_70">70dp</dimen>
    <dimen name="size_80">80dp</dimen>
    <dimen name="size_100">100dp</dimen>
    <dimen name="size_120">120dp</dimen>
    <dimen name="size_150">150dp</dimen>
    <dimen name="size_180">180dp</dimen>
    <dimen name="size_200">200dp</dimen>
    <dimen name="size_250">250dp</dimen>
    <dimen name="size_280">280dp</dimen>
    <dimen name="size_300">300dp</dimen>
    <dimen name="size_350">350dp</dimen>
    <dimen name="size_500">500dp</dimen>
    <dimen name="text_small">12.5sp</dimen>
    <dimen name="text_middle">15sp</dimen>
    <dimen name="text_large">18sp</dimen>
    <dimen name="text_xlarge">22sp</dimen>
    <dimen name="text_xxlarge">28sp</dimen>

</resources>
values-sw600dp  :  比例是  * 1.2。

<resources>

    <!-- 1.2 -->
    <dimen name="size_5">6dp</dimen>
    <dimen name="size_8">9.6dp</dimen>
    <dimen name="size_10">12dp</dimen>
    <dimen name="size_12">14.4dp</dimen>
    <dimen name="size_15">18dp</dimen>
    <dimen name="size_20">24dp</dimen>
    <dimen name="size_25">30dp</dimen>
    <dimen name="size_30">36dp</dimen>
    <dimen name="size_40">48dp</dimen>
    <dimen name="size_50">60dp</dimen>
    <dimen name="size_60">72dp</dimen>
    <dimen name="size_70">84dp</dimen>
    <dimen name="size_80">96dp</dimen>
    <dimen name="size_100">120dp</dimen>
    <dimen name="size_120">144dp</dimen>
    <dimen name="size_150">180dp</dimen>
    <dimen name="size_180">216dp</dimen>
    <dimen name="size_200">240dp</dimen>
    <dimen name="size_250">300dp</dimen>
    <dimen name="size_280">336dp</dimen>
    <dimen name="size_300">360dp</dimen>
    <dimen name="size_350">420dp</dimen>
    <dimen name="size_500">600dp</dimen>
    <dimen name="text_small">15sp</dimen>
    <dimen name="text_middle">18sp</dimen>
    <dimen name="text_large">21.6sp</dimen>
    <dimen name="text_xlarge">26.4sp</dimen>
    <dimen name="text_xxlarge">33.6sp</dimen>

</resources>

values-sw720dp  :  比例是  * 1.5。

<resources>

    <!-- 1.5 -->
    <dimen name="size_5">7.5dp</dimen>
    <dimen name="size_8">12dp</dimen>
    <dimen name="size_10">15dp</dimen>
    <dimen name="size_12">18dp</dimen>
    <dimen name="size_15">22.5dp</dimen>
    <dimen name="size_20">30dp</dimen>
    <dimen name="size_25">37.5dp</dimen>
    <dimen name="size_30">45dp</dimen>
    <dimen name="size_40">60dp</dimen>
    <dimen name="size_50">75dp</dimen>
    <dimen name="size_60">90dp</dimen>
    <dimen name="size_70">105dp</dimen>
    <dimen name="size_80">120dp</dimen>
    <dimen name="size_100">150dp</dimen>
    <dimen name="size_120">180dp</dimen>
    <dimen name="size_150">225dp</dimen>
    <dimen name="size_180">270dp</dimen>
    <dimen name="size_200">300dp</dimen>
    <dimen name="size_250">375dp</dimen>
    <dimen name="size_280">420dp</dimen>
    <dimen name="size_300">450dp</dimen>
    <dimen name="size_350">525dp</dimen>
    <dimen name="size_500">750dp</dimen>
    <dimen name="text_small">18.75sp</dimen>
    <dimen name="text_middle">22.5sp</dimen>
    <dimen name="text_large">27sp</dimen>
    <dimen name="text_xlarge">33sp</dimen>
    <dimen name="text_xxlarge">42sp</dimen>

</resources>