Android RxJava小结

一、如何使用

在build.gradle中添加依赖

 dependencies {
     api 'io.reactivex:rxandroid:1.2.1'
     api 'io.reactivex:rxjava:1.3.0'
     implementation fileTree(include: ['*.jar'], dir: 'libs')
     implementation 'com.android.support:appcompat-v7:27.1.1'
     implementation 'com.android.support.constraint:constraint-layout:1.1.3'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
 }

这里有一个小坑，直接用latest.release没有办法用，不知道为什么

二、代码实现

2.1 使用just+Action1+Action0来实现

  Observable.just(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
                     .subscribeOn(Schedulers.io()) // Observable运行的线程
                     .observeOn(AndroidSchedulers.mainThread()) //监听者运行的线程
                     .subscribe(new Action1<Integer>() {
                         //onNext
                         @Override
                         public void call(Integer integer) {
                             log("call 1:" + integer);
                         }
                     }, new Action1<Throwable>() {
                         //onError
                         @Override
                         public void call(Throwable throwable) {
                             log("call 2");
                         }
                     }, new Action0() {
                         //onCompleted
                         @Override
                         public void call() {
                             log("call 3");
                         }
                     });

运行结果如下，很简单，就不一一解释了。

 10-05 11:05:45.955 23619 23619 E MainActivity: yanlog msg:call 1:1
 10-05 11:05:45.955 23619 23619 E MainActivity: yanlog msg:call 1:2
 10-05 11:05:45.955 23619 23619 E MainActivity: yanlog msg:call 1:3
 10-05 11:05:45.955 23619 23619 E MainActivity: yanlog msg:call 1:4
 10-05 11:05:45.955 23619 23619 E MainActivity: yanlog msg:call 1:5
 10-05 11:05:45.955 23619 23619 E MainActivity: yanlog msg:call 1:6
 10-05 11:05:45.955 23619 23619 E MainActivity: yanlog msg:call 1:7
 10-05 11:05:45.955 23619 23619 E MainActivity: yanlog msg:call 1:8
 10-05 11:05:45.956 23619 23619 E MainActivity: yanlog msg:call 1:9
 10-05 11:05:45.956 23619 23619 E MainActivity: yanlog msg:call 1:10
 10-05 11:05:45.956 23619 23619 E MainActivity: yanlog msg:call 3

2.2 使用Just+Subscriber来实现

代码如下：

            Observable.just(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
                    .subscribeOn(Schedulers.io()) // Observable运行的线程
                    .observeOn(AndroidSchedulers.mainThread()) //监听者运行的线程
                    .subscribe(new Subscriber<Integer>() {
                        @Override
                        public void onCompleted() {
                            log("onCompleted");
                        }

                        @Override
                        public void onError(Throwable e) {
                            log("onError");
                        }

                        @Override
                        public void onNext(Integer integer) {
                            log("onNext:" + integer);
                        }
                    });

运行结果如下：

 10-05 19:56:09.991   982   982 E MainActivity: yanlog msg:onNext:1
 10-05 19:56:09.991   982   982 E MainActivity: yanlog msg:onNext:2
 10-05 19:56:09.991   982   982 E MainActivity: yanlog msg:onNext:3
 10-05 19:56:09.992   982   982 E MainActivity: yanlog msg:onNext:4
 10-05 19:56:09.992   982   982 E MainActivity: yanlog msg:onNext:5
 10-05 19:56:09.992   982   982 E MainActivity: yanlog msg:onNext:6
 10-05 19:56:09.992   982   982 E MainActivity: yanlog msg:onNext:7
 10-05 19:56:09.992   982   982 E MainActivity: yanlog msg:onNext:8
 10-05 19:56:09.992   982   982 E MainActivity: yanlog msg:onNext:9
 10-05 19:56:09.992   982   982 E MainActivity: yanlog msg:onNext:10
 10-05 19:56:09.992   982   982 E MainActivity: yanlog msg:onCompleted