prevent BTdaemon from stalling when Preferences.app with BTstack Prefs enters suspend mode

PrefsBundle/BluetoothController.m

@@ -100,7 +100,7 @@ static BluetoothController* sharedInstance = nil;
             NSLog(@"Cannot connect to BTdaemon!");
             return NO;
         }
-        NSLog(@"Connected to BTdaemon!");
+        // NSLog(@"Connected to BTdaemon!");
         isConnected = YES;
     }
 
@@ -111,7 +111,7 @@ static BluetoothController* sharedInstance = nil;
 }
 
 -(void)connectionBroke {
-    NSLog(@"BTstack stopped");
+    // NSLog(@"BTstack stopped");
     [self resetState];
     [self open];
     [listener bluetoothStateChanged];
@@ -119,7 +119,7 @@ static BluetoothController* sharedInstance = nil;
 
 -(void)close{
     if (isConnected) {
-        NSLog(@"Disconnected from BTdaemon!");
+        // NSLog(@"Disconnected from BTdaemon!");
         bt_close();
     }
     [self resetState];
@@ -165,7 +165,7 @@ static BluetoothController* sharedInstance = nil;
         return;
     }
     
-    NSLog(@"bluetoothStateChanged %u", type);
+    // NSLog(@"bluetoothStateChanged %u", type);
     
     state = kIdle;
     
@@ -180,11 +180,11 @@ static BluetoothController* sharedInstance = nil;
     switch(packet[0]){
         case BTSTACK_EVENT_STATE:
             hci_state = packet[2];
-            NSLog(@"new BTSTACK_EVENT_STATE %u", hci_state);
+            // NSLog(@"new BTSTACK_EVENT_STATE %u", hci_state);
             break;
         case BTSTACK_EVENT_SYSTEM_BLUETOOTH_ENABLED:
             system_bluetooth = packet[2];
-            NSLog(@"new BTSTACK_EVENT_SYSTEM_BLUETOOTH_ENABLED %u", system_bluetooth);
+            // NSLog(@"new BTSTACK_EVENT_SYSTEM_BLUETOOTH_ENABLED %u", system_bluetooth);
             break;
         default:
             break;
@@ -214,16 +214,16 @@ static BluetoothController* sharedInstance = nil;
         case kW4BTstackOffToEnableSystem:
             if (packet[0] == BTSTACK_EVENT_STATE) {
                 if (hci_state == HCI_STATE_OFF) {
-                    NSLog(@"Sending set system bluetooth enable A");
+                    // NSLog(@"Sending set system bluetooth enable A");
                     bt_send_cmd(&btstack_set_system_bluetooth_enabled, 1);
                 }
             }
             if (packet[0] == BTSTACK_EVENT_SYSTEM_BLUETOOTH_ENABLED) {
                 if (system_bluetooth == 0){
-                    NSLog(@"Sending set system bluetooth enable B");
+                    // NSLog(@"Sending set system bluetooth enable B");
                     bt_send_cmd(&btstack_set_system_bluetooth_enabled, 1);
                 } else {
-                    NSLog(@"Sending set system bluetooth enable DONE");
+                    // NSLog(@"Sending set system bluetooth enable DONE");
                     state = kIdle;
                 }
             }
@@ -238,7 +238,7 @@ static BluetoothController* sharedInstance = nil;
 }
 
 -(void)requestType:(BluetoothType_t)bluetoothType{
-    NSLog(@"bluetoothChangeRequested: old %u, new %u", [self bluetoothType], bluetoothType);
+    // NSLog(@"bluetoothChangeRequested: old %u, new %u", [self bluetoothType], bluetoothType);
 
     // ignore taps during transition
     if (state != kIdle) {

PrefsBundle/BluetoothTableViewAdapter.m

@@ -61,7 +61,7 @@
 }
 
 -(void) loggingSwitchToggled {
-    NSLog(@"Logging: %u", loggingSwitch.on);
+    // NSLog(@"Logging: %u", loggingSwitch.on);
     CFPropertyListRef on;
     if (loggingSwitch.on){
         on = kCFBooleanTrue;
@@ -98,7 +98,7 @@
     
     BluetoothType_t bluetoothType = [[BluetoothController sharedInstance] targetType];
     BOOL activity = [[BluetoothController sharedInstance] isActive];
-    NSLog(@"tableView update: type %u, active %u", bluetoothType, activity);
+    // NSLog(@"tableView update: type %u, active %u", bluetoothType, activity);
     
     switch ([indexPath section]) {
         case 0:

PrefsBundle/Makefile

@@ -1,3 +1,4 @@
+export TARGET=iphone:latest:4.0
 include $(THEOS)/makefiles/common.mk
 
 BUNDLE_NAME = BTstack

PrefsBundle/PrefsViewController.m

@@ -52,15 +52,13 @@
     BluetoothController *bluetoothController;
     UIView *_wrapperView;   // for < 3.2
     UITableView *tableView;
-    BOOL initialized;
 @end
 
 @implementation BluetoothPSViewController
 
 - (id)initForContentSize:(CGSize)size
 {
-    NSLog(@"initForContentSize");
-    initialized = NO;
+    // NSLog(@"initForContentSize");
 	if ([PSViewController instancesRespondToSelector:@selector(initForContentSize:)]) {
 		if ((self = [super initForContentSize:size])) {
 			CGRect frame;
@@ -77,8 +75,9 @@
 
 - (void)dealloc
 {
-    NSLog(@"dealloc");
+    // NSLog(@"dealloc");
     
+    [[BluetoothController sharedInstance] close];
     [[BluetoothController sharedInstance] setListener:nil];
 
 	[tableViewAdapter release];
@@ -88,8 +87,6 @@
     
 	[_wrapperView release];
 
-    initialized = NO;
-
 	[super dealloc];
 }
  
@@ -98,18 +95,37 @@
 	return [super view] ? [super view] : _wrapperView;
 }
 
--(void)myInit{
-    
-    if (initialized) return;
-    
-    initialized = YES;
-    
-    NSLog(@"myInit");
+-(void)didEnterBackground:(id)object{
+    // NSLog(@"didEnterBackground");
+    // close connection to BTdaemon
+    [[BluetoothController sharedInstance] close];
+}
 
+-(void)willEnterForeground:(id)object{
+    // NSLog(@"willEnterForeground");
+    // open connection to BTdaemon
+    [[BluetoothController sharedInstance] open];
+}
+
+-(void)viewWillAppear:(BOOL)animated {
+    // NSLog(@"viewWillAppear");
+    // open connection to BTdaemon
+    [[BluetoothController sharedInstance] open];
+}
+
+-(void) viewDidDisappear:(BOOL)animated {
+    // NSLog(@"viewDidDisappear");
+    // close connection to BTdaemon
+    [[BluetoothController sharedInstance] close];
+}
+
+-(void)viewDidLoad {
+    // setup view
+    // NSLog(@"initialize");
+    
     ((UINavigationItem*)[super navigationItem]).title = @"BTstack";
     
     UIView *view = [self view];
-
     
     tableView = [[UITableView alloc] initWithFrame:view.bounds style:UITableViewStyleGrouped];
     tableView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
@@ -120,27 +136,21 @@
     
     [view addSubview:tableView];
     
+    // setup Bluetooth Controller
     [[BluetoothController sharedInstance] setListener:tableViewAdapter];
-    [[BluetoothController sharedInstance] open];
+    
+    // register for backrounding events
+    [[NSNotificationCenter defaultCenter] 
+     addObserver:self 
+     selector:@selector(didEnterBackground:) 
+     name:UIApplicationDidEnterBackgroundNotification
+     object:nil];
+
+    [[NSNotificationCenter defaultCenter] 
+     addObserver:self 
+     selector:@selector(willEnterForeground:) 
+     name:UIApplicationWillEnterForegroundNotification
+     object:nil];
 }
 
--(void)viewDidLoad
-{
-    NSLog(@"viewDidLoad");
-	[super viewDidLoad];
-    [self myInit];
-}
-
-- (void)viewWillBecomeVisible:(void *)source
-{
-    NSLog(@"viewWillBecomeVisible %@", source);
-    [self myInit];
-	[super viewWillBecomeVisible:source];
-}
-
-- (void)viewWillAppear:(BOOL)animated
-{
-    NSLog(@"viewWillAppear");
-    [self myInit];
-}
 @end