更新文档对于扫码状态变更的描述

app/src/main/java/com/bgycc/smartcanteen/state/QRCodeState.java

@@ -7,15 +7,15 @@ import com.bgycc.smartcanteen.entity.PayData;
 import java.util.Objects;
 
 public class QRCodeState {
+    public static final int INIT_FAILED = -1;
     public static final int IDLE = 0;
     public static final int SCANNING = 1;
     public static final int SUCCESS = 2;
     public static final int FAILED = 3;
     public static final int PAY = 4;
     public static final int ILLEGAL = 5;
-    public static final int INIT_FAILED = -1;
 
-    @IntDef(value = {IDLE, SCANNING, SUCCESS, FAILED, PAY, ILLEGAL, INIT_FAILED})
+    @IntDef(value = {INIT_FAILED, IDLE, SCANNING, SUCCESS, FAILED, PAY, ILLEGAL})
     public @interface QRCODE_STATE {
     }