现在在线支付执行前会有100ms的时间预留，保证扫码反馈声音能播报完毕

app/src/main/java/com/bgycc/smartcanteen/viewModel/PayOnlineViewModel.java

@@ -37,7 +37,9 @@ import static com.bgycc.smartcanteen.utils.SmartCanteenUtils.TAG;
  * 支付状态(空闲、发送订单信息、支付中、支付成功、支付失败)都会通过{@link PayOnlineState}发出通知 <br/><br/>
  */
 public class PayOnlineViewModel extends ViewModel {
-    private static final long TIMEOUT = 5;
+    private static final long TIMEOUT = 5 * 1000;
+    // 在线支付延迟100ms执行，留出时间给扫码反馈
+    private static final long REQUEST_DELAY = 100;
     private static final long DEFAULT_DELAY = 3 * 1000;
     private Gson gson;
     private String deviceSN;
@@ -71,9 +73,9 @@ public class PayOnlineViewModel extends ViewModel {
         payRequest = new PayRequest(deviceSN, payData);
         cancelTimeout();
         TimeoutRunnable timeoutRunnable = new TimeoutRunnable();
-        timeoutFuture = SCTaskExecutor.getInstance().schedule(timeoutRunnable, TIMEOUT, TimeUnit.SECONDS);
+        timeoutFuture = SCTaskExecutor.getInstance().schedule(timeoutRunnable, TIMEOUT, TimeUnit.MILLISECONDS);
         RequestRunnable requestRunnable = new RequestRunnable();
-        SCTaskExecutor.getInstance().executeOnDiskIO(requestRunnable);
+        SCTaskExecutor.getInstance().schedule(requestRunnable, REQUEST_DELAY, TimeUnit.MILLISECONDS);
     }
 
     private void cancelTimeout() {