-1
안녕하세요, 백그라운드에서 FireBase를 실행하려고합니다.백그라운드에서 FireBase를 실행 중입니다.
코드가 다음과 같습니다. 코드가 다음을 수행합니다. - 앱이 백그라운드로 전환되면 Firebase에 새로운 채팅 메시지가 있는지 계속 확인합니다. 그런 다음 새 채팅 메시지가 발견되면 응용 프로그램 배지 번호를 증가시킵니다. 어떤 이유로
- (void) fetch
{
if([[API sharedInstance] isAuthorized])
{
NSLog(@"in background fetching");
Firebase * ref = nil;
NSDictionary * investor = [[API sharedInstance] investor];
NSDictionary * startup = [[API sharedInstance] startup];
if(investor != nil) {
NSInteger iid = [[API sharedInstance] userid];
NSString * path = [NSString stringWithFormat: @"http://example.firebaseIO.com/investor/%d/conversations", iid];
ref = [[Firebase alloc] initWithUrl:path];
}
else if(startup != nil)
{
NSInteger sid = [[startup objectForKey: @"id"] intValue];
NSString * path = [NSString stringWithFormat: @"http://example.firebaseIO.com/startup/%d/conversations", sid];
ref = [[Firebase alloc] initWithUrl:path];
}
if(ref)
{
NSString * path = [NSString stringWithFormat: @"http://kickcircle.firebaseIO.com/conversations"];
Firebase * conv = [[Firebase alloc] initWithUrl: path];
[ref observeEventType:FEventTypeChildAdded withBlock:^(FDataSnapshot *snapshot) {
// name of conversation
NSString * name = snapshot.name;
Firebase * ref1 = [conv childByAppendingPath: name];
[ref1 observeSingleEventOfType:FEventTypeValue withBlock:^(FDataSnapshot *snapshot) {
if(snapshot.value != [NSNull null] && ![snapshot.value isKindOfClass: [NSString class]])
{
NSLog(@"in background fetching7");
FDataSnapshot * chatsnapshot = [snapshot childSnapshotForPath: @"chats"];
NSInteger numChatMessages = chatsnapshot.childrenCount;
numberOfTotalChatMessages += numChatMessages;
NSMutableDictionary *m = [snapshot.value mutableCopy];
[m setValue: snapshot.name forKey: @"ref_name"];
// number of messages read for that conversation
NSInteger current_user = [[API sharedInstance] userid];
NSString * userpath = [NSString stringWithFormat: @"users/%d", current_user];
FDataSnapshot * usersnapshot = [snapshot childSnapshotForPath: userpath];
if(usersnapshot.value != [NSNull null] && ![usersnapshot.value isKindOfClass: [NSString class]])
{
NSDictionary * userdict = usersnapshot.value;
NSInteger numUserMessagesRead = [userdict[@"numOfMessages"] intValue];
if(numChatMessages > numUserMessagesRead)
{
if([[m objectForKey: @"last_from_id"] intValue] != [[API sharedInstance] userid])
{
[m setValue: @"true" forKey: @"bubble"];
newChats = YES;
if(inBackGround)
{
[self addNotification];
}
}
else{
numUserMessagesRead = numChatMessages;
}
}
else {
numUserMessagesRead = numChatMessages;
}
numberOfMessagesRead += numUserMessagesRead;
[m setValue: [NSNumber numberWithInt: numUserMessagesRead] forKey: @"numMessagesRead"];
}
else {
if([[m objectForKey: @"last_from_id"] intValue] != [[API sharedInstance] userid])
{
[m setValue: @"true" forKey: @"bubble"];
newChats = YES;
[m setValue: [NSNumber numberWithInt: 0] forKey: @"numMessagesRead"];
if(inBackGround)
{
[self addNotification];
}
}
else {
numberOfMessagesRead += numChatMessages;
[m setValue: [NSNumber numberWithInt: numChatMessages] forKey: @"numMessagesRead"];
}
}
[m setValue: [NSNumber numberWithInt: numChatMessages] forKey: @"numChatMessages"];
[self.chats addObject: m];
[self calculateChatNumber];
NSNumber * index = [NSNumber numberWithInt: self.chats.count - 1];
[read setValue: index forKey: snapshot.name];
PLRightMenuViewController * rightPanel = (PLRightMenuViewController *) self.viewController.rightPanel;
[rightPanel.tableView reloadData];
}
}];
}];
[ref observeEventType:FEventTypeChildChanged withBlock:^(FDataSnapshot *snapshot) {
NSString * name = snapshot.name;
Firebase * ref1 = [conv childByAppendingPath: name];
[ref1 observeSingleEventOfType:FEventTypeValue withBlock:^(FDataSnapshot *snapshot)
{
if(snapshot.value != [NSNull null] && ![snapshot.value isKindOfClass: [NSString class]])
{
NSLog(@"in background fetching8");
NSMutableDictionary *m = [snapshot.value mutableCopy];
[m setValue: snapshot.name forKey: @"ref_name"];
numberOfTotalChatMessages += 1;
if([read objectForKey: snapshot.name])
{
NSInteger index = [[read objectForKey: snapshot.name] intValue];
// number of current chats for conversation
NSInteger numChats = [[[self.chats objectAtIndex: index] objectForKey: @"numChatMessages"] intValue];
// number of messages read
NSNumber * readMessages = [[self.chats objectAtIndex: index] objectForKey: @"numMessagesRead"];
NSInteger readMessagesInt = [readMessages intValue];
NSInteger current_user = [[API sharedInstance] userid];
NSString * userpath = [NSString stringWithFormat: @"users/%d", current_user];
FDataSnapshot * usersnapshot = [snapshot childSnapshotForPath: userpath];
if(usersnapshot.value != [NSNull null] && ![usersnapshot.value isKindOfClass: [NSString class]])
{
NSDictionary * userdict = usersnapshot.value;
NSInteger numUserMessagesRead = [userdict[@"numOfMessages"] intValue];
if([[m objectForKey: @"last_from_id"] intValue] != [[API sharedInstance] userid]) {
newChats = YES;
[m setValue: @"true" forKey: @"bubble"];
if(numUserMessagesRead > readMessagesInt) {
numberOfMessagesRead += numUserMessagesRead - readMessagesInt;
readMessagesInt = numUserMessagesRead;
if(inBackGround)
{
[self addNotification];
}
}
}
else {
numberOfMessagesRead += numChats + 1 - readMessagesInt;
readMessagesInt = numChats + 1;
}
}
else {
if([[m objectForKey: @"last_from_id"] intValue] != [[API sharedInstance] userid])
{
[m setValue: @"true" forKey: @"bubble"];
newChats = YES;
if(inBackGround)
{
[self addNotification];
}
}
else {
numberOfMessagesRead += numChats + 1 - readMessagesInt;
readMessagesInt = numChats + 1;
}
}
[self.chats removeObjectAtIndex: index];
[m setValue: [NSNumber numberWithInt: numChats + 1] forKey: @"numChatMessages"];
[m setValue: [NSNumber numberWithInt: readMessagesInt] forKey: @"numMessagesRead"];
[self.chats addObject: m];
NSNumber * index1 = [NSNumber numberWithInt: self.chats.count - 1];
[read setValue: index1 forKey: snapshot.name];
}
[self calculateChatNumber];
PLRightMenuViewController * rightPanel = (PLRightMenuViewController *) self.viewController.rightPanel;
[rightPanel.tableView reloadData];
}
}];
}];
}
}
}
이 앱이 백그라운드로 갈 때 (새 메시지가있는 경우 배지가 증가되지 않음) 작동하지 않습니다 :
- (void)applicationDidEnterBackground:(UIApplication *)application
{
[self.locationManager startMonitoringSignificantLocationChanges];
NSLog(@"in background fetching8");
if ([[UIDevice currentDevice] respondsToSelector:@selector(isMultitaskingSupported)]) { //Check if our iOS version supports multitasking I.E iOS 4
if ([[UIDevice currentDevice] isMultitaskingSupported]) { //Check if device supports mulitasking
UIApplication *application = [UIApplication sharedApplication]; //Get the shared application instance
__block UIBackgroundTaskIdentifier background_task; //Create a task object
background_task = [application beginBackgroundTaskWithExpirationHandler:^{
[application endBackgroundTask: background_task]; //Tell the system that we are done with the tasks
background_task = UIBackgroundTaskInvalid; //Set the task to be invalid
//System will be shutting down the app at any point in time now
}];
//Background tasks require you to use asyncrous tasks
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
//Perform your tasks that your application requires
NSLog(@"in background fetching98");
inBackGround = YES;
[self fetch];
[application endBackgroundTask: background_task]; //End the task so the system knows that you are done with what you need to perform
background_task = UIBackgroundTaskInvalid; //Invalidate the background_task
});
}
}
// Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
// If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
}