Add file logging toggle and clear button in Settings

Author: bpmct

src/com/bpmct/trmnl_nook_simple_touch/ApiPrefs.java

@@ -10,6 +10,7 @@ public class ApiPrefs {
     private static final String KEY_API_BASE_URL = "api_base_url";
     private static final String DEFAULT_API_BASE_URL = "https://usetrmnl.com/api";
     private static final String KEY_ALLOW_SLEEP = "allow_sleep";
+    private static final String KEY_FILE_LOGGING = "file_logging";
     private static final String SCREENSAVER_PATH = "/media/screensavers/TRMNL/display.png";
 
     public static boolean hasCredentials(Context context) {
@@ -98,6 +99,16 @@ public static void setAllowSleep(Context context, boolean allow) {
                 .putBoolean(KEY_ALLOW_SLEEP, allow).commit();
     }
 
+    public static boolean isFileLoggingEnabled(Context context) {
+        SharedPreferences prefs = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE);
+        return prefs.getBoolean(KEY_FILE_LOGGING, false);
+    }
+
+    public static void setFileLoggingEnabled(Context context, boolean enabled) {
+        context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE).edit()
+                .putBoolean(KEY_FILE_LOGGING, enabled).commit();
+    }
+
     /** File path for screensaver image (hardcoded for NOOK). */
     public static String getScreensaverPath() {
         return SCREENSAVER_PATH;

src/com/bpmct/trmnl_nook_simple_touch/DisplayActivity.java

@@ -100,6 +100,9 @@ public class DisplayActivity extends Activity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        // Initialize file logging from saved preference
+        FileLogger.setEnabled(ApiPrefs.isFileLoggingEnabled(this));
+
         // NOOK Simple Touch is API 7 (no nav bar); keep this deterministic.
         getWindow().setFlags(
                 WindowManager.LayoutParams.FLAG_FULLSCREEN,

src/com/bpmct/trmnl_nook_simple_touch/FileLogger.java

@@ -15,7 +15,22 @@ public class FileLogger {
     private static final long MAX_SIZE = 512 * 1024; // 512KB max
     private static final SimpleDateFormat SDF = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.US);
 
+    private static volatile boolean enabled = false;
+
+    public static void setEnabled(boolean e) { enabled = e; }
+    public static boolean isEnabled() { return enabled; }
+
+    public static void clear() {
+        try {
+            File f = new File(LOG_PATH);
+            if (f.exists()) f.delete();
+            File old = new File(LOG_PATH + ".old");
+            if (old.exists()) old.delete();
+        } catch (Throwable t) { /* ignore */ }
+    }
+
     public static synchronized void log(String tag, String level, String msg) {
+        if (!enabled) return;
         try {
             File f = new File(LOG_PATH);
             // Rotate if too large

src/com/bpmct/trmnl_nook_simple_touch/SettingsActivity.java

@@ -17,6 +17,7 @@ public class SettingsActivity extends Activity {
     private static final int APP_ROTATION_DEGREES = 90;
     private TextView statusView;
     private CheckBox allowSleepCheck;
+    private CheckBox fileLoggingCheck;
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
@@ -79,6 +80,34 @@ protected void onCreate(Bundle savedInstanceState) {
                 ViewGroup.LayoutParams.WRAP_CONTENT,
                 ViewGroup.LayoutParams.WRAP_CONTENT));
 
+        TextView loggingLabel = new TextView(this);
+        loggingLabel.setText("Logging");
+        loggingLabel.setTextSize(14);
+        loggingLabel.setTextColor(0xFF000000);
+        LinearLayout.LayoutParams loggingLabelParams = new LinearLayout.LayoutParams(
+                ViewGroup.LayoutParams.WRAP_CONTENT,
+                ViewGroup.LayoutParams.WRAP_CONTENT);
+        loggingLabelParams.topMargin = 20;
+        inner.addView(loggingLabel, loggingLabelParams);
+
+        fileLoggingCheck = new CheckBox(this);
+        fileLoggingCheck.setText("Capture logs to file");
+        fileLoggingCheck.setTextColor(0xFF000000);
+        fileLoggingCheck.setChecked(ApiPrefs.isFileLoggingEnabled(this));
+        inner.addView(fileLoggingCheck, new LinearLayout.LayoutParams(
+                ViewGroup.LayoutParams.WRAP_CONTENT,
+                ViewGroup.LayoutParams.WRAP_CONTENT));
+
+        Button clearLogsButton = new Button(this);
+        clearLogsButton.setText("Clear Logs");
+        clearLogsButton.setTextColor(0xFF000000);
+        clearLogsButton.setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+                FileLogger.clear();
+            }
+        });
+        inner.addView(clearLogsButton);
+
         LinearLayout actions = new LinearLayout(this);
         actions.setOrientation(LinearLayout.HORIZONTAL);
         LinearLayout.LayoutParams actionsParams = new LinearLayout.LayoutParams(
@@ -134,6 +163,7 @@ protected void onResume() {
             statusView.setText(ApiPrefs.hasCredentials(this) ? "Saved" : "Missing");
         }
         if (allowSleepCheck != null) allowSleepCheck.setChecked(ApiPrefs.isAllowSleep(this));
+        if (fileLoggingCheck != null) fileLoggingCheck.setChecked(ApiPrefs.isFileLoggingEnabled(this));
     }
 
     protected void onPause() {
@@ -143,5 +173,10 @@ protected void onPause() {
 
     private void saveDisplayPrefs() {
         if (allowSleepCheck != null) ApiPrefs.setAllowSleep(this, allowSleepCheck.isChecked());
+        if (fileLoggingCheck != null) {
+            boolean enabled = fileLoggingCheck.isChecked();
+            ApiPrefs.setFileLoggingEnabled(this, enabled);
+            FileLogger.setEnabled(enabled);
+        }
     }
 }