Made formatters non-static so configuration changes are applied

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

@@ -106,7 +106,7 @@ public class ActivityView extends ActivityBilling implements FragmentManager.OnB
 
     private OpenPgpServiceConnection pgpService;
 
-    private static NumberFormat nf = NumberFormat.getNumberInstance();
+    private NumberFormat nf = NumberFormat.getNumberInstance();
 
     static final int REQUEST_UNIFIED = 1;
     static final int REQUEST_WHY = 2;

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

@@ -56,8 +56,8 @@ public class AdapterAccount extends RecyclerView.Adapter<AdapterAccount.ViewHold
 
     private List<TupleAccountEx> items = new ArrayList<>();
 
-    private static NumberFormat nf = NumberFormat.getNumberInstance();
-    private static final DateFormat df = SimpleDateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
+    private NumberFormat nf = NumberFormat.getNumberInstance();
+    private DateFormat df = SimpleDateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
 
     public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
         private View view;

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

@@ -54,7 +54,7 @@ public class AdapterContact extends RecyclerView.Adapter<AdapterContact.ViewHold
     private List<TupleContactEx> all = new ArrayList<>();
     private List<TupleContactEx> selected = new ArrayList<>();
 
-    private static NumberFormat nf = NumberFormat.getNumberInstance();
+    private NumberFormat nf = NumberFormat.getNumberInstance();
 
     public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnLongClickListener {
         private View view;

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

@@ -76,7 +76,7 @@ public class AdapterFolder extends RecyclerView.Adapter<AdapterFolder.ViewHolder
 
     private List<TupleFolderEx> items = new ArrayList<>();
 
-    private static NumberFormat nf = NumberFormat.getNumberInstance();
+    private NumberFormat nf = NumberFormat.getNumberInstance();
 
     public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnLongClickListener {
         private View view;

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

@@ -49,7 +49,7 @@ public class AdapterIdentity extends RecyclerView.Adapter<AdapterIdentity.ViewHo
 
     private List<TupleIdentityEx> items = new ArrayList<>();
 
-    private static final DateFormat df = SimpleDateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
+    private DateFormat df = SimpleDateFormat.getDateTimeInstance(DateFormat.SHORT, DateFormat.SHORT);
 
     public class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener {
         private View view;

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

@@ -41,7 +41,7 @@ public class AdapterLog extends RecyclerView.Adapter<AdapterLog.ViewHolder> {
 
     private List<EntityLog> items = new ArrayList<>();
 
-    private static final DateFormat DF = SimpleDateFormat.getTimeInstance();
+    private DateFormat DF = SimpleDateFormat.getTimeInstance();
 
     public class ViewHolder extends RecyclerView.ViewHolder {
         private TextView tvTime;

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

@@ -172,9 +172,9 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
 
     enum ViewType {UNIFIED, FOLDER, THREAD, SEARCH}
 
-    private static NumberFormat nf = NumberFormat.getNumberInstance();
-    private static DateFormat tf = SimpleDateFormat.getTimeInstance(SimpleDateFormat.SHORT);
-    private static DateFormat dtf = SimpleDateFormat.getDateTimeInstance(SimpleDateFormat.LONG, SimpleDateFormat.LONG);
+    private NumberFormat nf = NumberFormat.getNumberInstance();
+    private DateFormat tf = SimpleDateFormat.getTimeInstance(SimpleDateFormat.SHORT);
+    private DateFormat dtf = SimpleDateFormat.getDateTimeInstance(SimpleDateFormat.LONG, SimpleDateFormat.LONG);
 
     public class ViewHolder extends RecyclerView.ViewHolder implements
             View.OnClickListener, View.OnLongClickListener, BottomNavigationView.OnNavigationItemSelectedListener {

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

@@ -168,7 +168,7 @@ public class FragmentMessages extends FragmentBase {
     private final int action_junk = 9;
     private final int action_move = 10;
 
-    private static NumberFormat nf = NumberFormat.getNumberInstance();
+    private NumberFormat nf = NumberFormat.getNumberInstance();
 
     private static final int LOCAL_PAGE_SIZE = 100;
     private static final int REMOTE_PAGE_SIZE = 10;