• who is migrating to RxJava 2
• or just started with RxJava.

Hi, I am Amit Shekhar, I have mentored many developers, and their efforts landed them high-paying tech jobs, helped many tech companies in solving their unique problems, and created many open-source libraries being used by top companies. I am passionate about sharing knowledge through open-source, blogs, and videos.

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RxJava 2.0 has been completely rewritten from scratch on top of the Reactive-Streams specification. The specification itself has evolved out of RxJava 1.x and provides a common baseline for reactive systems and libraries.

Add this in your build.gradle

compile 'io.reactivex.rxjava2:rxjava:X.X.X'

If you are using RxAndroid also, then add the following

compile 'io.reactivex.rxjava2:rxandroid:X.X.X'

• Map -> transform the items emitted by an Observable by applying a function to each item. Blog: RxJava Operator Map vs FlatMap
• Zip -> combine the emissions of multiple Observables together via a specified function and emit single items for each combination based on the results of this function
• Filter -> emit only those items from an Observable that pass a predicate test
• FlatMap -> transform the items emitted by an Observable into Observables, then flatten the emissions from those into a single Observable. Blog: RxJava Operator Map vs FlatMap
• Take -> emit only the first n items emitted by an Observable. Blog for reference
• Reduce -> apply a function to each item emitted by an Observable, sequentially, and emit the final value
• Skip -> suppress the first n items emitted by an Observable
• Buffer -> periodically gather items emitted by an Observable into bundles and emit these bundles rather than emitting the items one at a time
• Concat -> emit the emissions from two or more Observables without interleaving them. Blog for reference
• Replay -> ensure that all observers see the same sequence of emitted items, even if they subscribe after the Observable has begun emitting items
• Merge -> combine multiple Observables into one by merging their emissions
• SwitchMap -> transform the items emitted by an Observable into Observables, and mirror those items emitted by the most-recently transformed Observable

• DisposableExampleActivity - Using CompositeDisposable. Blog for reference
• FlowableExampleActivity - Using Flowable and reduce operator
• SingleObserverExampleActivity - Using SingleObserver
• CompletableObserverActivity - Using CompletableObserver
• MapExampleActivity - Using map Operator. Blog: RxJava Operator Map vs FlatMap
• ZipExampleActivity - Using zip Operator
• BufferExampleActivity - Using buffer Operator
• TakeExampleActivity - Using take Operator. Blog for reference
• ReduceExampleActivity - Using reduce Operator
• FilterExampleActivity - Using filter Operator
• SkipExampleActivity - Using skip Operator
• ReplayExampleActivity - Using replay Operator
• ConcatExampleActivity - Using concat Operator. Blog for reference
• MergeExampleActivity - Using merge Operator
• DeferExampleActivity - Using defer Observable
• SwitchMapExampleActivity - Using switchMap Observable
• IntervalExampleActivity - Using Interval. Blog for reference
• RxBusActivity - RxBus, RxJava2Bus, EventBus, RxEventBus
• PaginationActivity - Pagination for loadMore in RecyclerView. Blog: Pagination In RecyclerView Using RxJava Operators
• ComposeOperatorExampleActivity - Compose operator for reusable
• Search Implementation - Using debounce, switchMap, distinctUntilChanged
• Implement Caching Using RxJava Operators - Using concat, firstElement
• PublishSubjectExampleActivity. Blog: RxJava Subject - Publish, Replay, Behavior, and Async

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Thanks

Amit Shekhar

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Just make pull request. You are in!