Refactoring

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

@@ -0,0 +1,47 @@
+package eu.faircode.email;
+
+import android.content.Context;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ArrayAdapter;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+
+public class DrawerAdapter extends ArrayAdapter<DrawerItem> {
+    DrawerAdapter(@NonNull Context context) {
+        super(context, -1);
+    }
+
+    @NonNull
+    public View getView(int position, View convertView, @NonNull ViewGroup parent) {
+        DrawerItem item = getItem(position);
+        View row = LayoutInflater.from(getContext()).inflate(item.getLayout(), null);
+
+        ImageView iv = row.findViewById(R.id.ivItem);
+        TextView tv = row.findViewById(R.id.tvItem);
+
+        if (iv != null) {
+            iv.setImageResource(item.getIcon());
+            if (item.getColor() != null)
+                iv.setColorFilter(item.getColor());
+        }
+
+        if (tv != null) {
+            tv.setText(item.getTitle());
+
+            tv.setTextColor(Helper.resolveColor(getContext(),
+                    item.getHighlight() ? R.attr.colorUnread : android.R.attr.textColorSecondary));
+        }
+
+        return row;
+    }
+
+    @Override
+    public boolean isEnabled(int position) {
+        DrawerItem item = getItem(position);
+        return (item != null && item.getId() != 0);
+    }
+}