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  • SQLite3 database doesn't actually insert data - iPhone

    - by user334934
    I'm trying to add a new entry into my database, but it's not working. There are no errors thrown, and the code that is supposed to be executed after the insertion runs, meaning there are no errors with the query. But still, nothing is added to the database. I've tried both prepared statements and the simpler sqlite3_exec and it's the same result. I know my database is being loaded because the info for the tableview (and subsequent tableviews) are loaded from the database. The connection isn't the problem. Also, the log of the sqlite3_last_insert_rowid(db) returns the correct number for the next row. But still, the information is not saved. Here's my code: db = [Database openDatabase]; NSString *query = [NSString stringWithFormat:@"INSERT INTO lists (name) VALUES('%@')", newField.text]; NSLog(@"Query: %@",query); sqlite3_stmt *statement; if (sqlite3_prepare_v2(db, [query UTF8String], -1, &statement, nil) == SQLITE_OK) { if(sqlite3_step(statement) == SQLITE_DONE){ NSLog(@"You created a new list!"); int newListId = sqlite3_last_insert_rowid(db); MyList *newList = [[MyList alloc] initWithName:newField.text idNumber:[NSNumber numberWithInt:newListId]]; [self.listArray addObject:newList]; [newList release]; [self.tableView reloadData]; sqlite3_finalize(statement); } else { NSAssert1(0, @"Error while inserting data. '%s'", sqlite3_errmsg(db)); } } [Database closeDatabase:db]; Again, no errors have been thrown. The prepare and step statements return SQLITE_OK and SQLITE_DONE respectively, yet nothing happens. Any help is appreciated!

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  • problem in playing next song in the avaudioplayer

    - by Rajashekar
    Hello friends my delegate method looks like this. after the first song is played it goes into this method and plays the second song , however when the second song is done playing it stops. it does not go into the delegate method.i need to play all the songs continuously. i am not sure, why. can someone help me. (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)p successfully:(BOOL)flag { if (flag == NO) NSLog(@"Playback finished unsuccessfully"); else { //[player stop]; index++; NSLog(@"%d",index); path=[[NSBundle mainBundle] pathForResource:[songlist objectAtIndex:index] ofType:@"mp3"]; [player initWithContentsOfURL:[NSURL fileURLWithPath:path] error:NULL]; [songlabel2 setTitle:[songlist objectAtIndex:index]]; [endtime setText:[NSString stringWithFormat:@"%.2f",[player duration]/100]]; [player play]; } }

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  • iPhone paging UI

    - by Comma
    I have an app that displays a large amount of information. For paging I'd like to use the "Home Screen" style scrolling/paging instead of the one used in pdf documents (smooth scrolling). How what should I use? also can that UI support more than 20 pages? or is there a better solution?

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  • Iphone SDK- How to insert a banner in my app

    - by Dave
    I have a tableview that my app shows when it loads, I would like to somehow put a banner at the bottom that if connceted to the internet will check my server for any new image files and if there are it will replace the current one and if not it will just leave it. That way I can constantly display messages to my users - sort of like in Doodle Jump. How could I achieve this? Thanks

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  • AppDelegate, RootViewController, and UIApplication

    - by guy8214
    Hi Guys I am trying to figure out the relationship between the appdelegate, RootViewControoler, and UIApplication. Here is what I kinda have figured out so far: When starting your application up, main.m gets loaded. From here, your MainWindow.xib gets loaded. In your MainWindow.xib, your File's Owner is of type UIApplication. You set your UIApplication's delegate to your AppDelegate. In your AppDelegate's source code, you can set your RootViewController to be the first view shown. Is this right? What prompts AppDelegate to initially run it's - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { } method?

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  • Passing class method as selector problem.

    - by Anoide
    Hi, I want to build a selector from a class method. I'm doing it this way: NavigationTreeActionHandler* handler=[NavigationTreeActionHandler self]; NavigationTreeNode* bombsNode=new NavigationTreeNode("Bombs","bigbomb.tif" ,handler,@selector(BigBombButtonPressed:)); I need to pass to NavigationTreeNode the target and the selector to the target method. I try to get the target using the self property of the class object (Don't know if htis is the correct way to do it). Then I get the selector for the class method I want to call on the class. Everything compiles ok but it fails when I use: [[handler class] instanceMethodSignatureForSelector:selector]; I get a nil and don't really know why... could anybody help please? Thanks in advance, Olson.

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  • When to call selectRow: on a UIPickerView that has just loaded?

    - by ragnarius
    I am trying to learn iPhone/iOS programming. I have an UIPickerView that should dispay its selected row as soon as it becomes visible (it is contained on a flippSideView). Unfortunately, the flipSideViewController's awakeFromNib is not called. It is too early to call [pickView selectRow ..] from viewWillLoad (the pickView does not exist at that time), and somewhat too late to do it in viewDidAppear. So, how can I make the pickerView display the selected row as soon it becomes visible?

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  • Designing operation (a,b) -> (c,d)

    - by golergka
    I have an operation that I need to design. That operation takes two objects of a certain class X, and returns two new objects of the same class (I may need the originals later). The logic that dictates the selection of this object is contained in class Y. On one hand, I don't want class Y to know details about class X implementation; on the other, I don't want class X to know details about selecting the different objects to perform this operation on. If that was all the problem, I'd just create a static method on class A. However, the methods in language I'm working on return only one object. Also, the operation needs to be robust, and calling operation two times to get C and D respectively isn't possible, as both C & D both rely on a single random number. How should I design such operation? Update: I'm using Obejctive C.

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  • Portrait vs Landscape Launch Images

    - by andrewx
    An iPad app can support inclusion of launch images in both orientations; presumably, if your app supports auto-rotation, then this would suggest to me that if the user launches an app while the device is in Landscape mode, then the Landscape launch image is used. But in all the apps I've built and released, this has never been the case. Never once has the Landscape launch image appeared, only the Portrait. After loading, the app will auto-rotate to whatever orientation the device is in, but at launch, it assumes you are in Portrait. Always. Why? I have seen many other apps in the store that behave this way, but then there are some seem to always automatically know immediately at first launch, from that first launch image, that you are in Landscape, if that's the case. How is this done?

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  • Arrays and application data

    - by s0mmer
    Hello everyone, At the moment i'm making an application where it is possible to make profiles with different settings. Which datatypes would you recommend me saving these information in? I have a table which is showing the profile name and the version number. But for each profile there need to be stored more information. Therefore the idea i'm working on have 2 arrays. 1 for all the profile information and 1 who is being made when loading the information. The second array is the one going to be showed in the table. Because the table doesnt show all the stored information. .. but this seems kinda stupid. Is there a more suitable method for saving the information in like 1 array, and just pass part of the data to the tableview?

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  • How do you know how much space an NSString (using default font) will occupy on a UITableView section

    - by paul_sns
    Basically I want to copy the behavior in iPhone's Calendar where the day of week (Mon, Tue, Wed) is on the left side of the table's section header (left justified) while the formatted date (Apr 1, 2010, May 1, 2010) based on locale is on the right side of the table's section header (right justified). I was thinking of inserting a variable amount of space in between the day of week and formatted date but I first need to know the actual space consumed by the text on both sides to figure out how much space to add. Hope to hear your thoughts on this. Thanks.

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  • Can we use (id) in if- else condition ?

    - by srikanth rongali
    I have written my code in following way in cocos2d. id actionTo = [CCFadeOut actionWithDuration:4.0f]; id actionTo0 = [CCSequence actionWithDuration:2.0f]; if (m < enemyNumber) id actionTo1 = [CCCallFunc actionWithTarget:self selector:@selector(goToNextScene)]; else id actionTo1 = [CCCallFunc actionWithTarget:self selector:@selector(goToEndScene)]; id actionSeq = [CCSequence actions:actionTo, actionTo0, actionTo1, nil]; [targetE runAction: [CCSequence actions:actionSeq, nil]]; error: expected expression before 'id' I am getting the above error. Should not we use (id) in if condition ? I want to get called two selectors by using the if- else condition. How can I make it ? Thank You.

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  • How can I get a CGImageRef from a file?

    - by OTisler
    So I know you can get a CGImage from a file using UIImage... UIImage *img = [UIImage imageNamed:@"name.bmp"]; [img CGImage]; But, is there a way to get a CGImageRef without using a UIImage? (I am trying this in a static library which doesn't have access to UIKit

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  • Is it possible to achieve string localization inside of a statically linked lib?

    - by user3696003
    I am working on building an SDK which will be built out as a statically linked library that third party applications can then drop in to their applications. Inside of this SDK, I was looking to be able to perform some "localization." Basically, I would like for the code in my SDK to be able to access some ".string" files to perform some string lookup and language translation capabilities. Then I could propagate these strings outward to implementing App layers through my exposed API's. Is this even possible? I thought it was but now that I have actually been trying, I am seriously having doubts.

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  • Application to download video from youtube

    - by Nidal Saed
    I making an application to view videos form youtube, and I think it is very easy to write a code to make the user be able download the videos and save it in the documents folder of the application, my questions are: 1) is it legal to do this, and is there any concern of the application being rejected? 2) is it possible to make the user watch the video and when he finish (watched all the video) get this data and save it, (not to download it again since he already watched the video and downloaded it).

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  • Display different iphone views depending on logged in status

    - by user330936
    I want to display a login view to my users if they are not logged in and the main view if they are. In my header file I define a variable to hold the logged in status #define loggedIn 0 I figure I should then reference this in the initWithNibName method and then decide which nib to load. Is the right way of doing it? If so can someone help me out with the exact code? Thanks for any help

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