如何取消訂閱RxJava2中的可觀察或訂閱？或者我真的需要嗎？

Question

如何取消訂閱RxJava2中的可觀察或訂閱？或者我真的需要嗎？

//Initialising Obersvable   
    Observable<SearchSuggestions> observable = NetworkContext.api.getSearch(""); 
     //subscribing obersvable on another thread and observing on main thread 

      observable.subscribeOn(Schedulers.io()) 
        .observeOn(AndroidSchedulers.mainThread()) 
        .subscribe(new Consumer<SearchSuggestions>() { 
         @Override 
         public void accept(SearchSuggestions searchSuggestions) throws Exception { 
    // here I receive the fetched results 

         } 
        }, new Consumer<Throwable>() { 
         @Override 
         public void accept(Throwable throwable) throws Exception { 
    //here the error 
         } 
        }); 

Answer 1

要取消訂閱用戶，也許你應該申報

要取消訂閱只需撥打任何時間，但我會建議要取消訂閱的onDestroy（活動）或onDestroyView（片段）

if (subscription != null && subscription.isUnsubscribed()) { 
     subscription.unsubscribe(); 
}