Set default maximum attachment download size to 64 KB

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

@@ -1406,7 +1406,7 @@ class Core {
             return;
 
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-        long maxSize = prefs.getInt("download", 32768);
+        long maxSize = prefs.getInt("download", MessageHelper.DEFAULT_ATTACHMENT_DOWNLOAD_SIZE);
         if (maxSize == 0)
             maxSize = Long.MAX_VALUE;
 

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

@@ -2247,7 +2247,7 @@ public class FragmentMessages extends FragmentBase {
                     autoExpanded = false;
 
                     SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());
-                    long download = prefs.getInt("download", 32768);
+                    long download = prefs.getInt("download", MessageHelper.DEFAULT_ATTACHMENT_DOWNLOAD_SIZE);
                     if (download == 0)
                         download = Long.MAX_VALUE;
 

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

@@ -605,7 +605,7 @@ public class FragmentOptions extends FragmentBase implements SharedPreferences.O
 
         swMetered.setChecked(prefs.getBoolean("metered", true));
 
-        int download = prefs.getInt("download", 32768);
+        int download = prefs.getInt("download", MessageHelper.DEFAULT_ATTACHMENT_DOWNLOAD_SIZE);
         int[] downloadValues = getResources().getIntArray(R.array.downloadValues);
         for (int pos = 0; pos < downloadValues.length; pos++)
             if (downloadValues[pos] == download) {

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

@@ -71,6 +71,7 @@ public class MessageHelper {
     private final static int POOL_TIMEOUT = 45 * 1000; // milliseconds, default 45 sec
 
     static final int ATTACHMENT_BUFFER_SIZE = 8192; // bytes
+    static final int DEFAULT_ATTACHMENT_DOWNLOAD_SIZE = 65536; // bytes
 
     static void setSystemProperties() {
         System.setProperty("mail.mime.decodetext.strict", "false");