Feature request

[vijayakumarmariyappan]

@BillCarsonFr @bmarty Thanks for the library.
Can i expand/collapse all ?
can i zoom it?

i tried to import your library, but it says it like this below. I'm using latest android studio. Aug 21 build.

Could u please help me. i tried by clearing cache of gradle and clean project option also. But both is not working. Thanks in advance :)

/home/vijay/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-android-extensions-runtime/1.5.30/cbd99c64601a1897f1289938de5b0b34ebf311be/kotlin-android-extensions-runtime-1.5.30.jar!/META-INF/kotlin-android-extensions-runtime.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.5.1, expected version is 1.1.15.