When does grpc support okhttp 3.0

[YilinYuan]

Please answer these questions before submitting your issue.

What version of gRPC are you using?

grpc 1.6.1

What did you expect to see?

grpc-okhttp of grpc 1.6.1 contains okhttp 2.5.0 ,but I want to use okhttp 3.0 because I need use it for andriod glide. I can't compaile different okhttp's version for andriod 's app

[dapengzhang0]

There is no problem to use okhttp 3.0 and grpc-okhttp-1.6.1 in the same app. That is because grpc-okhttp manually shaded all necessary okhttp2 code that could conflict with okhttp3. Refer to discussions in #2999, #2549, #1628

[YilinYuan]

A app has different Okhttp's version, feeling not nice ,Just want to Using Okhttp 3.0 and above