[Enhancement] Applying Builder Pattern to AdManager

[JerryChin]

It's an awesome tool for application developers ;) However, it would be better to implement AdManager using Builder pattern, Effective in Java by Joshua Bloch has given a nice example of the pattern and benefits from it.

[relice]

Caused by: java.lang.ClassNotFoundException: Didn't find class "com.uuch.adlibrary.view.MetaballView" on path: DexPathList[[zip file "/data/app/com.example.relicemxd.leanrrv-2/base.apk"],nativeLibraryDirectories=[/data/app/com.example.relicemxd.leanrrv-2/lib/x86, /vendor/lib, /system/lib]]