如何修复 java.lang.IllegalThreadStateException？

Question

在我的应用程序中，我想在 CountDownTimer 中使用一个线程，为此我编写了以下代码。

但是运行应用程序在几秒钟后显示 LogCat 中的错误。

我的代码：

    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.fragment_auction_detail_bid, null);
        new CountDownTimer(newCalculateTime, 1000) {

            public void onTick(long millisUntilFinished) {
                if (millisUntilFinished / 1000 <= newCanOfferBeforeTime) {
                    Constants.currentActivity.runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            getlast6BidData();
                        }
                    });
                }
            }

            public void onFinish() {

            }

        }.start();

return v;
}

    private void getlast6BidData() {
        thread = new Thread() {
            @Override
            public void run() {
                getUpdateBidsList(Constants.detailAuctionGmodel.getRes().getDetail().getCalculate_end());
                try {
                    sleep(last6RunStartTimer);
                    getlast6BidData();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }

            }
        };
        thread.start();
    }

LogCat 错误：

E/UncaughtException: java.lang.IllegalThreadStateException
                                                                            at java.lang.Thread.start(Thread.java:722)
                                                                            at com.app.android.Fragments.AuctionDetailBidFragment.getlast6BidData(AuctionDetailBidFragment.java:744)
                                                                            at com.app.android.Fragments.AuctionDetailBidFragment.access0(AuctionDetailBidFragment.java:73)
                                                                            at com.app.android.Fragments.AuctionDetailBidFragment.run(AuctionDetailBidFragment.java:737)

我该如何解决？

Answer 1

尝试使用 Thread.isAlive() 方法检查您的线程是否处于活动状态。

private void getlast6BidData() {
        thread = new Thread() {
            @Override
            public void run() {
                getUpdateBidsList(Constants.detailAuctionGmodel.getRes().getDetail().getCalculate_end());
                try {
                    sleep(last6RunStartTimer);
                    getlast6BidData();
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }

            }
        };

       if (!thread.isAlive()){
          thread.start();
       }
    }

编辑

getActivity().runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            getlast6BidData();
                        }
                    });

如何修复 java.lang.IllegalThreadStateException？

How to fix java.lang.IllegalThreadStateException?

java

android

multithreading

android-thread