我想在我的项目中使用RxAndroid和RxJava。因此,在build.gradle文件中添加了如下所示的行。但是,当我尝试使用
animalsObserver.subscribeOn();//unrecognized
AndroidStudio无法识别它。因此,请让我知道如何正确使用.subscribeOn()方法。
代码:
import rx.Observable;
import rx.Observer;
public class MainActivity extends AppCompatActivity {
Observable<String> animalsObservable = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
animalsObservable = Observable.just("Ant", "Bee", "Cat", "Dog", "Fox");
Observer<String> animalsObserver = getAnimalsObserver();
animalsObserver.subscribeOn();//unrecognized
}
private Observer<String> getAnimalsObserver() {
return new Observer<String>() {
@Override
public void onSubscribe(Disposable d) {
Log.d(TAG, "onSubscribe");
}
@Override
public void onNext(String s) {
Log.d(TAG, "Name: " + s);
}
@Override
public void onError(Throwable e) {
Log.e(TAG, "onError: " + e.getMessage());
}
@Override
public void onComplete() {
Log.d(TAG, "All items are emitted!");
}
};
}
}
等级:
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.3.1'
compile 'com.android.support.constraint:constraint-layout:1.0.2'
compile 'io.reactivex:rxandroid:1.2.1'
compile 'io.reactivex:rxjava:1.1.9'
testCompile 'junit:junit:4.12'
}
答案 0 :(得分:1)
具有Observable
API而不是subcribeOn()
的{{1}}。您的示例应类似于:
Observer
答案 1 :(得分:0)
在subscribeOn()方法中,您必须传递将在其上执行观察者的调度程序 您需要 subscribe()方法;
答案 2 :(得分:0)
在Observable而不是Observer上调用方法subsribeOn()。因此,如下修改您的代码:
animalsObservable
.subscribeOn(Scheduler.io()) //run on background thread
.observerOn(AndroidScheduler.mainThread())
.subscribe(animalsObserver);