Java RxAndroid:类必须声明为抽象类或实现抽象方法错误
我试图学习Java RxAndroid:类必须声明为抽象类或实现抽象方法错误,java,android,rx-java,rx-android,Java,Android,Rx Java,Rx Android,我试图学习RxAndroid但是,我在操作Observable.subscribe(新订户(){和另一个行中提到了错误。create(新的Observable.OnSubscribe(){。为什么 import android.app.Activity; import android.os.Bundle; import android.support.design.widget.Snackbar; import android.support.v7.app.AppCompatActivity;
RxAndroid
但是,我在操作Observable.subscribe(新订户(){
和另一个行中提到了错误。create(新的Observable.OnSubscribe(){
。为什么
import android.app.Activity;
import android.os.Bundle;
import android.support.design.widget.Snackbar;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import rx.Observable;
import rx.Subscriber;
public class MainActivity extends AppCompatActivity {
Button button;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
final Activity activity = this;
button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(final View v) {
v.setEnabled(false);
operationObservable.subscribe(new Subscriber() {
@Override
public void onCompleted() {
v.setEnabled(true);
}
@Override
public void onError(Throwable e) {}
@Override
public void onNext(String value) {
Snackbar.make(findViewById(android.R.id.content), value, Snackbar.LENGTH_LONG).show();
}
});
}
});
}
public String longRunningOperation() {
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
// error
}
return "Complete!";
}
final Observable operationObservable = Observable
.create(new Observable.OnSubscribe() {
@Override
public void call(Subscriber subscriber) {
subscriber.onNext(longRunningOperation());
subscriber.onCompleted();
}
});
// .subscribeOn(Schedulers.io()) // subscribeOn the I/O thread
// .observeOn(AndroidSchedulers.mainThread()); // observeOn the UI Thread
}
需要改变
公共无效呼叫(用户){
到
公共无效调用(对象o){
然后将参数强制转换为方法内部的订阅方。您应以泛型方式使用它
new Observable.OnSubscribe() {
@Override
public void call(Subscriber subscriber) {
subscriber.onNext(longRunningOperation());
subscriber.onCompleted();
}
});
应替换为
new Observable.OnSubscribe<Subscriber>() {
@Override
public void call(Subscriber subscriber) {
subscriber.onNext(longRunningOperation());
subscriber.onCompleted();
}
});
newobservable.OnSubscribe(){
@凌驾
公用无效呼叫(用户){
subscriber.onNext(longRunningOperation());
subscriber.onCompleted();
}
});
希望这有帮助。这比我的想法更有用,看起来也更漂亮。很高兴这对你有帮助:)