Merge branch 'new_master' into new_for_phone

app/src/main/java/com/bgycc/smartcanteen/qrcode/QRCodeScanFactory.java

@@ -9,12 +9,13 @@ public class QRCodeScanFactory {
     private static final String TPS_PORT = "/dev/ttyS0";
     private static final String QUAD_PORT = "/dev/ttyS6";
     public static IQRCodeScan create() throws Exception {
-        if (Build.MODEL.contains(TPS)) {
+        String model = Build.MODEL;
+        if (model.contains(TPS)) {
             return new TPS(TPS_PORT);
-        } else if (Build.DEVICE.contains(QUAD)) {
+        } else if (model.contains(QUAD)) {
             return new QUAD(QUAD_PORT);
         } else {
-            throw new RuntimeException("不明设备型号: " + Build.DEVICE);
+            throw new RuntimeException("不明设备型号: " + model);
         }
     }
 }