fix bug

app/src/main/java/com/emato/ich/fragment/TakeSuccessFragment.java

@@ -85,7 +85,9 @@ public class TakeSuccessFragment extends Fragment {
             if (null != timer) {
                 timer.cancel();
             }
-            timer2.cancel();
+            if (null != timer2) {
+                timer2.cancel();
+            }
             NavUtils.navigate(this, R.id.action_takeSuccessFragment_to_takeCodeFragment);
         });
 
@@ -110,6 +112,7 @@ public class TakeSuccessFragment extends Fragment {
             Bundle bundle = activity.getBundleMap().get(TakeCodeFragment.class.getName());
             binding.openCabinetHintNo.setText(bundle.getString("takeCabinetNo"));
             // 倒计时
+            s = StringUtils.isNullOrEmpty(s) ? "15" : s;
             int i = Integer.parseInt(s);
             timer2 = new CountDownTimer(i * 1000, 1000) {
                 @Override