RxBus.java
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package com.sunvote.txpad.base;
import android.support.annotation.NonNull;
import com.sunvote.util.LogUtil;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import rx.Observable;
import rx.android.schedulers.AndroidSchedulers;
import rx.functions.Action1;
import rx.subjects.PublishSubject;
import rx.subjects.Subject;
/**
* 作者： 孙向锦
* 时间： 2016/12/6
* 版本：1.0.0.0
* 邮编：410000
* 程序功能：
* 用RxJava实现的EventBus
*/
public class RxBus {
private static RxBus instance;
public static synchronized RxBus $() {
if (null == instance) {
instance = new RxBus();
}
return instance;
}
private RxBus() {
}
@SuppressWarnings("rawtypes")
private ConcurrentHashMap<Object, List<Subject>> subjectMapper = new ConcurrentHashMap<Object, List<Subject>>();
private Map<String, Object> keyMap = new HashMap<>();
/**
* 订阅事件源
*
* @param mObservable
* @param mAction1
* @return
*/
public RxBus OnEvent(Observable<?> mObservable, Action1<Object> mAction1) {
mObservable.observeOn(AndroidSchedulers.mainThread()).subscribe(mAction1, new Action1<Throwable>() {
@Override
public void call(Throwable o) {
o.printStackTrace();
}
});
return $();
}
/**
* 注册事件源
*
* @param tag
* @return
*/
@SuppressWarnings({"rawtypes"})
public <T> Observable<T> register(@NonNull Object tag) {
List<Subject> subjectList = subjectMapper.get(tag);
if (null == subjectList) {
subjectList = new ArrayList<Subject>();
subjectMapper.put(tag, subjectList);
}
Subject<T, T> subject;
subjectList.add(subject = PublishSubject.create());
LogUtil.d("register", tag + " size:" + subjectList.size());
return subject;
}
@SuppressWarnings("rawtypes")
public void unregister(@NonNull Object tag) {
List<Subject> subjects = subjectMapper.get(tag);
if (null != subjects) {
subjectMapper.remove(tag);
}
}
/**
* 取消监听
*
* @param tag
* @param observable
* @return
*/
@SuppressWarnings("rawtypes")
public RxBus unregister(@NonNull Object tag,
@NonNull Observable<?> observable) {
if (null == observable)
return $();
List<Subject> subjects = subjectMapper.get(tag);
if (null != subjects) {
subjects.remove((Subject<?, ?>) observable);
if (isEmpty(subjects)) {
subjectMapper.remove(tag);
LogUtil.d("unregister", tag + " size:" + subjects.size());
}
}
return $();
}
public void post(@NonNull Object content) {
post(content.getClass().getName(), content);
}
/**
* 触发事件
*
* @param content
*/
@SuppressWarnings({"unchecked", "rawtypes"})
public void post(@NonNull Object tag, @NonNull Object content) {
LogUtil.d("post", "eventName: " + tag);
List<Subject> subjectList = subjectMapper.get(tag);
if (!isEmpty(subjectList)) {
for (Subject subject : subjectList) {
subject.onNext(content);
LogUtil.d("onEvent", "eventName: " + tag);
}
}
}
@SuppressWarnings("rawtypes")
public static boolean isEmpty(Collection<Subject> collection) {
return null == collection || collection.isEmpty();
}
public void event(String event, Action1<Object> mAction1) {
final Object value = keyMap.get(event);
if (value != null) {
/*Observable.create(new Observable.OnSubscribe<Object>() {
@Override
public void call(Subscriber<? super Object> subscriber) {
subscriber.onNext(value);
}
}).observeOn(AndroidSchedulers.mainThread()).subscribe(mAction1);*/
mAction1.call(value);
keyMap.remove(event);
}
}
public void onKeyEvent(String event, Object content) {
keyMap.put(event, content);
}
}