Add setting to enable TRACE log level

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/GBApplication.java

@@ -237,7 +237,10 @@ public class GBApplication extends Application {
             GBDatabaseManager.setupDatabase(this);
         }
 
-        Logging.getInstance().initialize(prefs.getBoolean("log_to_file", false));
+        Logging.getInstance().initialize(
+                prefs.getBoolean("log_to_file", false),
+                prefs.getBoolean("log_level_trace", false)
+        );
 
         migratePrefsIfNeeded();
 

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/Logging.java

@@ -29,6 +29,7 @@ import org.slf4j.LoggerFactory;
 import java.io.IOException;
 import java.util.Locale;
 
+import ch.qos.logback.classic.Level;
 import ch.qos.logback.classic.LoggerContext;
 import ch.qos.logback.classic.encoder.PatternLayoutEncoder;
 import ch.qos.logback.classic.spi.ILoggingEvent;
@@ -57,8 +58,9 @@ public class Logging {
         return INSTANCE;
     }
 
-    public void initialize(final boolean enable) {
+    public void initialize(final boolean enable, final boolean trace) {
         setFileLoggingEnabled(enable);
+        setTraceLogging(trace);
         // prepare for log shutdown
         if (!initialized) {
             final Thread thread = new Thread(this::shutdown, "shutdownHook");
@@ -136,6 +138,15 @@ public class Logging {
         return logDirectory != null;
     }
 
+    public void setTraceLogging(final boolean traceEnabled) {
+        try {
+            ch.qos.logback.classic.Logger root = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
+            root.setLevel(traceEnabled ? Level.TRACE : Level.DEBUG);
+        } catch (final Throwable e) {
+            LOG.error("Error changing log level", e);
+        }
+    }
+
     public void debugLoggingConfiguration() {
         // For debugging problems with the logback configuration
         LoggerContext lc = (LoggerContext) LoggerFactory.getILoggerFactory();

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/SettingsActivity.java

@@ -204,6 +204,13 @@ public class SettingsActivity extends AbstractSettingsActivityV2 {
                         });
                     }
                 }
+
+                final SwitchPreferenceCompat logLevelTrace = findPreference("log_level_trace");
+                logLevelTrace.setOnPreferenceChangeListener((preference, newVal) -> {
+                    final boolean traceEnabled = Boolean.TRUE.equals(newVal);
+                    Logging.getInstance().setTraceLogging(traceEnabled);
+                    return true;
+                });
             }
 
             pref = findPreference(PREF_LANGUAGE);

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

@@ -2638,6 +2638,8 @@
     <string name="error_background_service_reason_truncated">Starting the background service failed because…</string>
     <string name="pref_crash_notification_title">Notify on crash</string>
     <string name="pref_crash_notification_summary">When the app crashes, display a notification with the error</string>
+    <string name="pref_log_level_trace_title">Trace logging</string>
+    <string name="pref_log_level_trace_summary">Increase logging level to TRACE</string>
     <string name="app_crash_notification_title">%1s has crashed</string>
     <string name="app_crash_share_stacktrace">Share error</string>
     <string name="device_is_currently_bonded">ALREADY BONDED</string>

app/src/main/res/xml/preferences.xml

@@ -407,6 +407,13 @@
             android:layout="@layout/preference_checkbox"
             android:title="@string/pref_write_logfiles"
             app:iconSpaceReserved="false" />
+        <SwitchPreferenceCompat
+            android:defaultValue="false"
+            android:key="log_level_trace"
+            android:layout="@layout/preference_checkbox"
+            android:summary="@string/pref_log_level_trace_summary"
+            android:title="@string/pref_log_level_trace_title"
+            app:iconSpaceReserved="false" />
         <Preference
             android:key="log_restart"
             android:summary="@string/pref_restart_logging_summary"