Android Retrofit2实现倒计时

• 记录一次使用Retrofit2实现倒计时功能

1.在需要的module中添加依赖

implementation "io.reactivex.rxjava2:rxjava:2.1.0"

2.代码实现

/**
 * Des: 倒计时
 * Created by kele on 2020/7/17.
 * E-mail:984127585@qq.com
 */
public class RX2CountDownTimer {

    private Disposable disposable;

    private RX2CountDownTimer() {
    }

    public static RX2CountDownTimer getInstance() {
        return new RX2CountDownTimer();
    }

    public interface RX2CountDownTimerCallback {
        void onNext(boolean isFinish, long time);
    }

    /**
     * 开始倒计时
     *
     * @param allSecTimes 倒计时总时长 单位：秒
     * @param cb
     * @return
     */
    public Disposable startCountDown(final int allSecTimes, final RX2CountDownTimerCallback cb) {
        //倒计时为200妙，
        disposable = Flowable.intervalRange(0, allSecTimes, 0, 1, TimeUnit.SECONDS)
                .subscribeOn(Schedulers.io())
                .observeOn(AndroidSchedulers.mainThread())
                .doOnNext(new Consumer<Long>() {
                    @Override
                    public void accept(Long aLong) throws Exception {
                        if (null == cb) {
                            return;
                        }
                        cb.onNext(false, allSecTimes - (aLong + 1));
                    }
                })
                .doOnComplete(new Action() {
                    @Override
                    public void run() throws Exception {
                        if (null == cb) {
                            return;
                        }
                        cb.onNext(true, 0);
                    }
                })
                .subscribe();
        return disposable;
    }

    /**
     * 停止倒计时
     */
    public void stopCountDown() {
        if (null == disposable) {
            return;
        }
        if (disposable.isDisposed()) {
            return;
        }
        disposable.dispose();
    }
}

附加：使用系统自带的CountDownTimer实现倒计时

    private CountDownTimer cdTimer;

    private void startCountDown() {
        cdTimer = new CountDownTimer(3000, 1000) {
            @Override
            public void onTick(long millisUntilFinished) {

            }

            @Override
            public void onFinish() {
                gotoMain();
            }
        };
        cdTimer.start();
    }

    private void stopCountDown() {
        if (null == cdTimer) {
            return;
        }
        cdTimer.cancel();
    }