Bug fixes

• #136 - fix vulnerability around exported broadcast receiver (unblocking sdk 31 support) 🙏 @anjalsaneen

• Improved caching (Provide custom caching implementation) 🙏 @TonyTangAndroid
• new Wiki with better instructions and information around using the library
• use Single instead of Flowable for init call apis
• update example to demonstrate usage better
• remove "support-annotations" dependency

Features

• provide api for server response delay max (millis) #57
• provide root delay and root dispersion as api inputs (millis) #57
• propagate InvalidNtpServerResponseException properly with violated property values #57

Fixes

• bump the default server response delay to 200

Features

• upgrade to RxJava 2.x (Observables are now Flowables)

Fixes:

• api for providing NTP resolved IPs directly (see #42 for details)
• fix manifest merge fail (see #44)
• synchronize accessors (see #56)

Fixes

• fix #39
• fix #40

Fixes:

• coerce signed 16.16 int -> double value and compare in milliseconds

Features:

• Full NTP implementation #24 (this was a significant change and warranted the change of the apis)
• Disk persistence! cache TrueTime info to disk, so we avoid network requests calls (even across app kills). This requires the boot permission as TrueTime is invalid across device boots #15
• Add flag for logging #16

Fixes:

• More stringent checks with custom InvalidNtpServerResponseException thrown with reason for failure
• the maxConcurrent option was incorrectly being used on flatMap. While limiting the number of parallel SNTP calls made, it was also basically ignoring rest of the provided NTP hosts.

• expose retry count
• (Rx) fix: first -> take(1)

• clean Singleton implementation
• add TrueTime.isInitialized()

api cleanup:

• #3 - make TrueTime a Singleton
• #5 - return Observable<Date> vs Observable<Void>

minor fixes & cleanup