service 里面使用toast

最新推荐文章于 2024-03-10 16:57:50 发布

原创最新推荐文章于 2024-03-10 16:57:50 发布 · 1.6k 阅读

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#service #timer #string #class

本文介绍了一种连接丢失后的重试机制实现方案。通过定义不同的重连等待时间，确保在网络不稳定的情况下能够有效重新建立连接。利用Handler和TimerTask实现延迟任务，通过递增的重连计数器调整重连间隔。

public class ConnectionService extends Service { private Handler handler = new Handler(); public void restartConnection(){ int sleepTime = reconnectCounter * MIN_RECON_WAIT; if (sleepTime > MAX_RECON_WAIT) { sleepTime = MAX_RECON_WAIT; } String msg = "The connection has been lost. Restart attempt will start in: " + sleepTime/1000 + " seconds"; (new Timer()).schedule( new TimerTask() { public void run() { handler.post(new Runnable() { public void run() { Toast.makeText(getApplicationContext(), "msg", Toast.LENGTH_LONG).show(); reconnectCounter++; this.startConnectionThread() } }); } }, sleepTime); }//end restartConnection }//end ConnectionService