Refactoring

app/src/main/java/eu/faircode/email/EntityAccount.java

@@ -52,6 +52,7 @@ public class EntityAccount extends EntityOrder implements Serializable {
     // https://tools.ietf.org/html/rfc2177
     static final int DEFAULT_KEEP_ALIVE_INTERVAL = 15; // minutes
     static final int DEFAULT_POLL_INTERVAL = 15; // minutes
+    static final int DEFAULT_MAX_MESSAGES = 100; // POP3
 
     static final int TYPE_IMAP = 0;
     static final int TYPE_POP = 1;

app/src/main/java/eu/faircode/email/FragmentPop.java

@@ -99,8 +99,6 @@ public class FragmentPop extends FragmentBase {
     private static final int REQUEST_COLOR = 1;
     private static final int REQUEST_DELETE = 2;
 
-    private static final int MAX_MESSAGES = 100;
-
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -560,7 +558,7 @@ public class FragmentPop extends FragmentBase {
                     cbLeaveDeleted.setChecked(account == null ? true : account.leave_deleted);
                     cbLeaveDevice.setChecked(account == null ? false : account.leave_on_device);
                     etMax.setText(Integer.toString(account == null || account.max_messages == null
-                            ? MAX_MESSAGES : account.max_messages));
+                            ? EntityAccount.DEFAULT_MAX_MESSAGES : account.max_messages));
                     etInterval.setText(account == null ? "" : Long.toString(account.poll_interval));
 
                     new SimpleTask<EntityAccount>() {