belle tian questions

• using Retrofit2/okhttp3 upload file,the upload action always performs twice,one fast ,and other slow
• How to "DELETE" a char * variable return by a function?
• Type of "Int -> Bool" ,"Int-> Bool -> Int","Int-> String -> Int－> Bool"
• android studio 2.2 how to apply dagger2 without android-apt plugin
• UINavigationControllerDelegate‘s didShowViewController method was called twice
• Caught a RuntimeException from the binder stub implementation when swap data in arrayadapter

belle tian answers