• Downgrade the minSdk version to Android 6.0(API 23). So that more Android phones can use this app.
• Use Android ViewModel + Data Binding + LiveData to reduce the code.
  sha256sum:
  audio-share-app-0.0.7-release.apk: 9ac717e67ebc776594a6e85fc790c946a6d47919f3f2e6f7c1c42b510bcc274a
  AudioShareServer.exe: 5ab91c678b423998aba935794591dd97672ec540ca5dde6bac5fbbecfff818c7