strategry 1: do the riskiest part first (to demonstrate proof of concept)
strategry 2: implement what you can based on the available data, Use placeholder data
<ImageView android:width="wrap_content" android:height="wrap_content" android:src="@mipmap/ic_launcher" />
Density Buckets
-mdpi(medium) ~160dpi
-hdpi(high) ~240dpi
-xhdpi(extra-high) ~320dpi
-xxhdpi(extra-extra-high) ~480dpi
more pixel fit in the screen
