RxJava and RxAndroid 2, rxjavarxandroid

RxJava and RxAndroid 2, rxjavarxandroid

Friends who do not know about Rx can read my first blog posts RxJava and RxAndroid, which is a basic introduction to Rxjava.

 

1. merge operator, which combines observed objects

1 package app.com. myapplication; 2 3 import android. support. v7.app. appCompatActivity; 4 import android. OS. bundle; 5 6 import java. util. arrayList; 7 import java. util. list; 8 9 import rx. observable; 10 import rx. functions. action1; 11 12 public class MergeActivity extends AppCompatActivity {13 14 @ Override15 protected void onCreate (Bundle savedInstanceState) {16 super. onCreate (savedInstanceState); 17 setContentView (R. layout. activity_merge); 18 19 List <String> list1 = new ArrayList <> (); 20 List <String> list2 = new ArrayList <> (); 21 22 list1.add ("1"); 23 list1.add ("2"); 24 list1.add ("3"); 25 26 list2.add (""); 27 list2.add ("B"); 28 list2.add ("c"); 29 30 Observable observable1 = Observable. from (list1); 31 Observable observable2 = Observable. from (list2); 32 33 // the merged data first sends all data of observable2, and then sends all data of observable1 34 Observable observable Observable = Observable. merge (observable2, observable1); 35 36 observable. subscribe (new Action1 () {37 @ Override38 public void call (Object o) {39 System. out. println ("rx --" + o); 40} 41}); 42 43} 44}

Running result