基于Rxjava實現輪詢定時器

/**
 * Copyright 2015-2018 Hive Box.
 */

package com.fcbox.locker.shrail.utils;

import android.support.annotation.NonNull;

import com.fcbox.locker.sdk.Locker;
import com.fcbox.locker.sdk.log.LogUtils;

import java.util.concurrent.TimeUnit;

import io.reactivex.Observable;
import io.reactivex.Observer;
import io.reactivex.android.schedulers.AndroidSchedulers;
import io.reactivex.disposables.Disposable;

/**
 * Rxjava2.x實現輪詢定時器.
 *
 * @author xuzhuyun
 */
public class RxTimerUtil {

 private static Disposable mDisposable;

 /**
  * milliseconds毫秒后執行next操作
  */
 public static void timer(long milliseconds, final IRxNext next) {
  Observable.timer(milliseconds, TimeUnit.MILLISECONDS)
    .observeOn(AndroidSchedulers.mainThread())
    .subscribe(new Observer<Long>() {
     @Override
     public void onSubscribe(@NonNull Disposable disposable) {
      mDisposable = disposable;
     }

     @Override
     public void onNext(@NonNull Long number) {
      if (next != null) {
       next.doNext(number);
      }
     }

     @Override
     public void onError(@NonNull Throwable e) {
      //取消訂閱
      cancel();
     }

     @Override
     public void onComplete() {
      //取消訂閱
      cancel();
     }
    });
 }


 /**
  * 每隔milliseconds毫秒后執行next操作
  */
 public static void interval(long milliseconds, final IRxNext next) {
  Observable.interval(milliseconds, TimeUnit.MILLISECONDS)
    .observeOn(AndroidSchedulers.mainThread())
    .subscribe(new Observer<Long>() {
     @Override
     public void onSubscribe(@NonNull Disposable disposable) {
      mDisposable = disposable;
     }

     @Override
     public void onNext(@NonNull Long number) {
      if (next != null) {
       next.doNext(number);
      }
     }

     @Override
     public void onError(@NonNull Throwable e) {

     }

     @Override
     public void onComplete() {

     }
    });
 }


 /**
  * 取消訂閱
  */
 public static void cancel() {
  if (mDisposable != null && !mDisposable.isDisposed()) {
   mDisposable.dispose();
   LogUtils.e("====Rx定時器取消======");
  }
 }

 public interface IRxNext {
  void doNext(long number);
 }
}