2 bug fixes

* ical4android: enumerate (=synchronize) all task lists and not only the first one
* fix crash bugs when activating external logging without external storage

app/src/main/java/at/bitfire/davdroid/syncadapter/TasksSyncAdapterService.java

@@ -66,7 +66,7 @@ public class TasksSyncAdapterService extends Service {
                 Constants.log.error("Couldn't enumerate local task lists", e);
             }
 
-            Constants.log.info("Calendar sync complete");
+            Constants.log.info("Task sync complete");
         }
     }
 

app/src/main/java/at/bitfire/davdroid/ui/settings/AccountFragment.java

@@ -21,6 +21,8 @@ import android.preference.SwitchPreference;
 import android.provider.CalendarContract;
 import android.provider.ContactsContract;
 
+import java.io.File;
+
 import at.bitfire.davdroid.R;
 import at.bitfire.davdroid.log.ExternalFileLogger;
 import at.bitfire.davdroid.syncadapter.AccountSettings;
@@ -141,7 +143,11 @@ public class AccountFragment extends PreferenceFragment {
 
         final SwitchPreference prefLogExternalFile = (SwitchPreference)findPreference("log_external_file");
         prefLogExternalFile.setChecked(settings.logToExternalFile());
-        prefLogExternalFile.setSummaryOn(getString(R.string.settings_log_to_external_file_on, ExternalFileLogger.getDirectory(getActivity()).getPath()));
+        File logDirectory = ExternalFileLogger.getDirectory(getActivity());
+        prefLogExternalFile.setSummaryOn(logDirectory != null ?
+                getString(R.string.settings_log_to_external_file_on, logDirectory.getPath()) :
+                getString(R.string.settings_log_to_external_file_no_external_storage)
+        );
         prefLogExternalFile.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
             @Override
             public boolean onPreferenceChange(Preference preference, Object newValue) {

app/src/main/res/values/strings.xml

@@ -141,6 +141,7 @@
     <string name="settings_log_to_external_file">Log to external file</string>
     <string name="settings_log_to_external_file_confirmation">External log files will contain private data and be accessible by other apps. Turn off external logging and delete the log files after use.</string>
     <string name="settings_log_to_external_file_on">Logs are written to %s (if possible)</string>
+    <string name="settings_log_to_external_file_no_external_storage">External storage is not available</string>
     <string name="settings_log_to_external_file_off">Logs are written to ADB</string>
     <string name="settings_log_verbose">Verbose logging</string>
     <string name="settings_log_verbose_on">Log synchronization information and network traffic</string>

ical4android

@@ -1 +1 @@
-Subproject commit 3142ae4a02348640cd5b184d1fb931d204f6bc5d
+Subproject commit 51c5bf4343a8dcc5ff0ce40b59a58ad0fdde2e67