7.03 打開錢箱報錯修改

print-module/src/main/java/com/joe/print/mvp/print/PrinterRoot.java

@@ -427,12 +427,14 @@ public abstract class PrinterRoot implements PrintSocketHolder.OnStateChangedLis
     }
 
     private PrinterDeviceBean getDefaultPrintInList(List<PrinterDeviceBean> printerDeviceBeans) {
+        if (printerDeviceBeans != null) {
             for (PrinterDeviceBean printerDeviceBean : printerDeviceBeans) {
                 if (printerDeviceBean.getStatus() == 2) {
                     //默認打印機
                     return printerDeviceBean;
                 }
             }
+        }
         return null;
     }