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  • Avoiding Nested Blocks

    - by Helium3
    If there is a view controller that wants to execute a number of block based tasks one at a time, how can the control be given back to the view controller after a completion block has executed. Lets say ViewControllerOne wants to execute a number of tasks, each relying on the result of the previous one, how would this control be given back to the viewcontroller after each completion block has been executed? I started thinking about this and I was heading towards a deeply nested block pattern that will surely only cause confusion to whoever else reads or tests it. A task executes and the completion block returns the result or error which is needed by the next task, which has its own completion task, that the next task relies on and so forth. How can the control be managed in one place, the viewcontroller? Would the completion block just call the next function that handles the next task, using a pointer to the view controller?

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  • NSDateFormatter iOS6 issue

    - by Angad Manchanda
    I have written a code for UIButton press to decrement date. The present date is shown in a UILabel text property and it changes to the previous date when the button is pressed. The following code works perfectly fine for iOS5 but doesn't work with iOS6. With iOS6, it gives the output as Dec 31, 1999 or null. - (IBAction)showPrevDate:(id)sender { NSString *dateForDecrement = _showDateLbl.text; [dateFormatter setDateFormat:@"MMM d, yyyy (EEE)"]; NSDate *dateObjectForDecrement = [dateFormatter dateFromString:dateForDecrement]; int subtractDays = 1; dateAfterDecrement=[dateObjectForDecrement dateByAddingTimeInterval:-(24*60*60 * subtractDays)]; _showDateLbl.text = [NSString stringWithFormat:@"%@", [dateFormatter stringFromDate:dateAfterDecrement]]; } Can anybody verify this, or tell me if its's a bug in iOS6 ? Thanks guys.

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  • CLLOcationManager will work correctly in iphone sdk?

    - by Mikhail Naimy
    hi, I am using the code which is in the URL stackoverflow.but I have done database operation in that method(didEnterRegionCLRegion ).Will it work correctly without opening the application (in background).I have given alert also.but it is not called.anyone who is experienced , help me in this matter?I am in India..will it give only correct GEO information only for AT&T service provider?Apple did not give any sample code for it?I have registered location in viewcontroller, i have to do the same in any Delegate methods?

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  • Core Plot: x-axis labels not plotted when using scaleToFitPlots

    - by AlexR
    Problem: I can't get Core Plot (1.1) to plot automatic labels for my x-axis when using autoscaling ([plotSpace scaleToFitPlots:[graph allPlots]). What I have tried: I changed the values for the offsets and paddings, but this did not change the result. However, when turning autoscale off (not using [plotSpace scaleToFitPlots:[graph allPlots]]and setting the y scale automatically, the automatic labeling of the x-axis works. Question: Is there a bug in Core Plot or what did I do wrong? I would appreciate any help! Thank you! This is how I have set up my chart: CPTBarPlot *barPlot = [CPTBarPlot tubularBarPlotWithColor:[CPTColor blueColor] horizontalBars:NO]; barPlot.baseValue = CPTDecimalFromInt(0); barPlot.barOffset = CPTDecimalFromFloat(0.0f); // CPTDecimalFromFloat(0.5f); barPlot.barWidth = CPTDecimalFromFloat(0.4f); barPlot.barCornerRadius = 4; barPlot.labelOffset = 5; barPlot.dataSource = self; barPlot.delegate = self; graph = [[CPTXYGraph alloc]initWithFrame:self.view.bounds]; self.hostView.hostedGraph = graph; graph.paddingLeft = 40.0f; graph.paddingTop = 30.0f; graph.paddingRight = 30.0f; graph.paddingBottom = 50.0f; [graph addPlot:barPlot]; graph.plotAreaFrame.masksToBorder = NO; graph.plotAreaFrame.cornerRadius = 0.0f; graph.plotAreaFrame.borderLineStyle = borderLineStyle; double xAxisStart = 0; CPTXYAxisSet *xyAxisSet = (CPTXYAxisSet *)graph.axisSet; CPTXYAxis *xAxis = xyAxisSet.xAxis; CPTMutableLineStyle *lineStyle = [xAxis.axisLineStyle mutableCopy]; lineStyle.lineCap = kCGLineCapButt; xAxis.axisLineStyle = lineStyle; xAxis.majorTickLength = 10; xAxis.orthogonalCoordinateDecimal = CPTDecimalFromDouble(yAxisStart); xAxis.paddingBottom = 5; xyAxisSet.delegate = self; xAxis.delegate = self; xAxis.labelOffset = 0; xAxis.labelingPolicy = CPTAxisLabelingPolicyAutomatic; [plotSpace scaleToFitPlots:[graph allPlots]]; CPTMutablePlotRange *yRange = plotSpace.yRange.mutableCopy; [yRange expandRangeByFactor:CPTDecimalFromDouble(1.3)]; plotSpace.yRange = yRange; NSInteger xLength = CPTDecimalIntegerValue(plotSpace.xRange.length) + 1; plotSpace.xRange = [CPTPlotRange plotRangeWithLocation:CPTDecimalFromDouble(xAxisStart) length:CPTDecimalFromDouble(xLength)] ;

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  • Get 1 array from 2 arrays (using RestKit 0.20)

    - by Reez
    I'm using RestKit and was wondering how to combine two array's into one array. I already have the data being pulled in separately from API1 and API2, but I don't know how to combine them into 1 tableView. Each API is pulling in media, and I want the combined tableView to show the most recent media (like any standard timeline does these days). I will post any extra code or help as necessary, thanks so much! Below shows API1 + API2 being pulled in correctly, but not combined into the tableView. Only data from API1 shows in the tableView. ViewController.m @interface StackOverflowViewController () @property (strong, nonatomic) NSArray *hArray; @property (strong, nonatomic) NSArray *springs; @property (strong, nonatomic) RKObjectManager *eObjectManager; @property (strong, nonatomic) NSArray *iArray; @property (strong, nonatomic) NSArray *imagesArray; @property (strong, nonatomic) RKObjectManager *iObjectManager; // Wain @property (strong, nonatomic) NSMutableArray *tableDataList; // Laarme @property (nonatomic, strong) NSMutableArray *contentArray; @property (nonatomic, strong) NSDateFormatter *dateFormatter1; // Dan @property (nonatomic, strong) NSMutableArray *combinedModel; @end @implementation StackOverflowViewController @synthesize tableView = _tableView; @synthesize spring; @synthesize leaf; @synthesize theme; @synthesize hArray; @synthesize springs; @synthesize eObjectManager; @synthesize iArray; @synthesize imagesArray; @synthesize iObjectManager; // Wain @synthesize tableDataList; // Laarme @synthesize contentArray; @synthesize dateFormatter1; // Dan @synthesize combinedModel; - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. [self configureRestKit]; [self loadMediaDan]; [self sortCombinedModel]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (void)configureRestKit { // API1 // initialize AFNetworking HTTPClient NSURL *baseURLE = [NSURL URLWithString:@"https://api.e.com"]; AFHTTPClient *clientE = [[AFHTTPClient alloc] initWithBaseURL:baseURLE]; // initialize RestKit RKObjectManager *eManager = [[RKObjectManager alloc] initWithHTTPClient:clientE]; self.eObjectManager = eManager; // setup object mappings RKObjectMapping *feedMapping = [RKObjectMapping mappingForClass:[Feed class]]; [feedMapping addAttributeMappingsFromArray:@[@"headline", @"premium", @"published", @"description"]]; RKObjectMapping *linksMapping = [RKObjectMapping mappingForClass:[Links class]]; RKObjectMapping *webMapping = [RKObjectMapping mappingForClass:[Web class]]; [webMapping addAttributeMappingsFromArray:@[@"href"]]; RKObjectMapping *mobileMapping = [RKObjectMapping mappingForClass:[Mobile class]]; [mobileMapping addAttributeMappingsFromArray:@[@"href"]]; RKObjectMapping *imagesMapping = [RKObjectMapping mappingForClass:[Images class]]; [imagesMapping addAttributeMappingsFromArray:@[@"height", @"width", @"url"]]; [feedMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"links" toKeyPath:@"links" withMapping:linksMapping]]; [feedMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"images" toKeyPath:@"images" withMapping:imagesMapping]]; [linksMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"web" toKeyPath:@"web" withMapping:webMapping]]; [linksMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"mobile" toKeyPath:@"mobile" withMapping:mobileMapping]]; // register mappings with the provider using a response descriptor RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:feedMapping method:RKRequestMethodGET pathPattern:nil keyPath:@"feed" statusCodes:[NSIndexSet indexSetWithIndex:200]]; [self.eObjectManager addResponseDescriptor:responseDescriptor]; // API2 // initialize AFNetworking HTTPClient NSURL *baseURLI = [NSURL URLWithString:@"https://api.i.com"]; AFHTTPClient *clientI = [[AFHTTPClient alloc] initWithBaseURL:baseURLI]; // initialize RestKit RKObjectManager *iManager = [[RKObjectManager alloc] initWithHTTPClient:clientI]; self.iObjectManager = iManager; // setup object mappings RKObjectMapping *dataMapping = [RKObjectMapping mappingForClass:[Data class]]; [dataMapping addAttributeMappingsFromArray:@[@"link", @"created_time"]]; RKObjectMapping *imagesMapping = [RKObjectMapping mappingForClass:[ImagesI class]]; [IMapping addAttributeMappingsFromArray:@[@""]]; RKObjectMapping *standardResolutionMapping = [RKObjectMapping mappingForClass:[StandardResolution class]]; [standardResolutionMapping addAttributeMappingsFromArray:@[@"url", @"width", @"height"]]; RKObjectMapping *captionMapping = [RKObjectMapping mappingForClass:[Caption class]]; [captionMapping addAttributeMappingsFromArray:@[@"text", @"created_time"]]; RKObjectMapping *userMapping = [RKObjectMapping mappingForClass:[User class]]; [userMapping addAttributeMappingsFromArray:@[@"username"]]; [dataMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"images" toKeyPath:@"images" withMapping:imagesMapping]]; [imagesMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"standard_resolution" toKeyPath:@"standard_resolution" withMapping:standardResolutionMapping]]; [dataMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"caption" toKeyPath:@"caption" withMapping:captionMapping]]; [dataMapping addPropertyMapping:[RKRelationshipMapping relationshipMappingFromKeyPath:@"user" toKeyPath:@"user" withMapping:userMapping]]; // register mappings with the provider using a response descriptor RKResponseDescriptor *responseDescriptor2 = [RKResponseDescriptor responseDescriptorWithMapping:dataMapping method:RKRequestMethodGET pathPattern:nil keyPath:@"data" statusCodes:[NSIndexSet indexSetWithIndex:200]]; [self.iObjectManager addResponseDescriptor:responseDescriptor2]; } - (void)loadMedia { // Laarme contentArray = [[NSMutableArray alloc] init]; [self sortByDates]; // API1 NSString *apikey = @kCLIENTKEY; NSDictionary *queryParams = @{@"apikey" : apikey,}; [self.eObjectManager getObjectsAtPath:[NSString stringWithFormat:@"v1/n/?limit=4&leafs=%@&themes=%@", leafAbbreviation, themeID] // Changed limit to 4 for the time being parameters:queryParams success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) { hArray = mappingResult.array; [self.tableView reloadData]; } failure:^(RKObjectRequestOperation *operation, NSError *error) { NSLog(@"No?: %@", error); }]; // API2 [self.iObjectManager getObjectsAtPath:[NSString stringWithFormat:@"v1/u/2/m/recent/?client_id=e999"] parameters:nil success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) { iArray = mappingResult.array; [self.tableView reloadData]; } failure:^(RKObjectRequestOperation *operation, NSError *error) { NSLog(@"No: %@", error); }]; } // Laarme - (void)sortByDates { NSDateFormatter *dateFormatter2 = [[NSDateFormatter alloc] init]; //Do the dateFormatter settings, you may have to use 2 NSDateFormatters if the format is different for Data & Feed //The initialization of the dateFormatter is done before the block, because its alloc/init take some time, and you may have to declare it with "__block" //Since in your edit you do that and it seems it's the same format, just do @property (nonatomic, strong) NSDateFormatter dateFormatter; NSArray *sortedArray = [contentArray sortedArrayUsingComparator:^NSComparisonResult(id a, id b) { // Added Curly Braces around if else statements and used feedObject NSDate *aDate, *bDate; Feed *feedObject = (Feed *)a; Data *dataObject = (Data *)b; if ([a isKindOfClass:[Feed class]]) { //Feed *feedObject = (Feed *)a; aDate = [dateFormatter1 dateFromString:feedObject.published];} else { //if ([a isKindOfClass:[Data class]]) aDate = [dateFormatter2 dateFromString:dataObject.created_time];} if ([b isKindOfClass:[Feed class]]) { bDate = [dateFormatter1 dateFromString:feedObject.published];} else {//if ([b isKindOfClass:[Data class]]) bDate = [dateFormatter2 dateFromString:dataObject.created_time];} return [aDate compare:bDate]; }]; } #pragma mark - Table View - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { // API1 //return hArray.count; // API2 //return iArray.count; // API1 + API2 return hArray.count + iArray.count; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell; if(indexPath.row < hArray.count) { // Date Change NSDateFormatter *df = [[NSDateFormatter alloc] init]; [df setDateFormat:@"MMMM d, yyyy h:mma"]; // API 1 TableViewCell *api1Cell = [tableView dequeueReusableCellWithIdentifier:@"YourAPI1Cell"]; // Do everything you need to do with the api1Cell // Use the index in 'indexPath.row' to get the object from you array // API1 Feed *feedLocal = [hArray objectAtIndex:indexPath.row]; // API1 NSString *dateString = [self timeSincePublished:feedLocal.published]; NSString *headlineText = [NSString stringWithFormat:@"%@", feedLocal.headline]; NSString *descriptionText = [NSString stringWithFormat:@"%@", feedLocal.description]; NSString *premiumText = [NSString stringWithFormat:@"%@", feedLocal.premium]; api1Cell.labelHeadline.text = [NSString stringWithFormat:@"%@", headlineText]; api1Cell.labelPublished.text = dateString; api1Cell.labelDescription.text = descriptionText; // SDWebImage API1 if ([feedLocal.images count] == 0) { // Not sure anything needed here } else { Images *imageLocal = [feedLocal.images objectAtIndex:0]; NSString *imageURL = [NSString stringWithFormat:@"%@", imageLocal.url]; NSString *imageWith = [NSString stringWithFormat:@"%@", imageLocal.width]; NSString *imageHeight = [NSString stringWithFormat:@"%@", imageLocal.height]; __weak UITableViewCell *wcell = cell; [cell.imageView setImageWithURL:[NSURL URLWithString:imageURL] placeholderImage:[UIImage imageNamed:@"X"] completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType) { // Something }]; } cell = api1Cell; } else { // Date Change NSDateFormatter *df = [[NSDateFormatter alloc] init]; [df setDateFormat:@"MMMM d, yyyy h:mma"]; // API 2 MRWebListTableViewCellTwo *api2Cell = [tableView dequeueReusableCellWithIdentifier:@"YourAPI2Cell"]; // Do everything you need to do with the api2Cell // Remember to use 'indexPath.row - hArray.count' as the index for getting an object for your second array // API 2 Data *dataLocal = [iArray objectAtIndex:indexPath.row - hArray.count]; // API 2 NSString *dateStringI = [self timeSincePublished:dataLocal.created_time]; NSString *captionTextI = [NSString stringWithFormat:@"%@", dataLocal.caption.text]; NSString *usernameI = [NSString stringWithFormat:@"%@", dataLocal.user.username]; api2Cell.labelHeadline.text = usernameI; api2Cell.labelDescription.text = captionTextI; api2Cell.labelPublished.text = dateStringI; // SDWebImage API 2 if ([dataLocal.images count] == 0) { NSLog(@"Images Count: %lu", (unsigned long)dataLocal.images.count); // Not sure anything needed here } else { ImagesI *imageLocalI = [dataLocal.images objectAtIndex:0]; StandardResolutionI *standardResolutionLocal = [imageLocalI.standard_resolution objectAtIndex:0]; NSString *imageURLI = [NSString stringWithFormat:@"%@", standardResolutionLocal.url]; NSString *imageWithI = [NSString stringWithFormat:@"%@", standardResolutionLocal.width]; NSString *imageHeightI = [NSString stringWithFormat:@"%@", standardResolutionLocal.height]; // 11.2 __weak UITableViewCell *wcell = cell; [cell.imageView setImageWithURL:[NSURL URLWithString:imageURLI] placeholderImage:[UIImage imageNamed:@"X"] completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType) { // Something }]; } cell = api2Cell; } return cell; } Feed.h @property (nonatomic, strong) Links *links; @property (nonatomic, strong) NSString *headline; @property (nonatomic, strong) NSString *source; @property (nonatomic, strong) NSDate *published; @property (nonatomic, strong) NSString *description; @property (nonatomic, strong) NSString *premium; @property (nonatomic, strong) NSArray *images; Data.h @property (nonatomic, strong) NSString *link; @property (nonatomic, strong) NSDate *created_time; @property (nonatomic, strong) UserI *user; @property (nonatomic, strong) NSArray *images; @property (nonatomic, strong) CaptionI *caption;

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  • How to figure out why .NET app runs at 32-bit on a 64-bit machine

    - by user54064
    I have a .NET app (webforms - .NET 3.5) that is running on a 64-bit server as 32-bit (I checked the IntPtr.Size result). The compilation is set to AnyCPU so I would expect that on a 64-bit machine, the app would be run at 64-bit. There are many Third-party programs incorporated into the app, could they be causing a problem? How do I figure out why 64-bit compilation is not being done?

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  • UITableView cell appearance update not working - iPhone

    - by Jack Nutkins
    I have this piece of code which I'm using to set the alpha and accessibility of one of my tables cells dependent on a value stored in user defaults: - (void) viewDidAppear:(BOOL)animated{ [self reloadTableData]; } - (void) reloadTableData { if ([[userDefaults objectForKey:@"canDeleteReceipts"] isEqualToString:@"0"]) { NSIndexPath *path = [NSIndexPath indexPathForRow:0 inSection:8]; UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:path]; cell.contentView.alpha = 0.2; cell.userInteractionEnabled = NO; } else { NSIndexPath *path = [NSIndexPath indexPathForRow:0 inSection:8]; UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:path]; cell.contentView.alpha = 1; cell.userInteractionEnabled = YES; } if ([[userDefaults objectForKey:@"canDeleteMileages"] isEqualToString:@"0"]) { NSIndexPath *path = [NSIndexPath indexPathForRow:1 inSection:8]; UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:path]; cell.contentView.alpha = 0.2; cell.userInteractionEnabled = NO; } else { NSIndexPath *path = [NSIndexPath indexPathForRow:1 inSection:8]; UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:path]; cell.contentView.alpha = 1; cell.userInteractionEnabled = YES; } if ([[userDefaults objectForKey:@"canDeleteAll"] isEqualToString:@"0"]) { NSIndexPath *path = [NSIndexPath indexPathForRow:2 inSection:8]; UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:path]; cell.contentView.alpha = 0.2; cell.userInteractionEnabled = NO; NSLog(@"In Here"); } else { NSIndexPath *path = [NSIndexPath indexPathForRow:2 inSection:8]; UITableViewCell *cell = [self.tableView cellForRowAtIndexPath:path]; cell.contentView.alpha = 1; cell.userInteractionEnabled = YES; } } The value stored in userDefaults is '0' so the cell in section 8 row 2 should be greyed out and disabled, however this doesn't happen and the cell is still selectable with an alpha of 1... The log statement 'In Here' is called so it seems to be executing the right code, but that code doesn't seem to be doing anything. Can anyone explain what I've done wrong? Thanks, Jack

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  • HBase as web app backend

    - by NathanD
    Can anyone advise if it is a good idea to have HBase as primary data source for web-based application? My primary concern is HBase's response time to queries. Is it possible to have sub-second response? edit: more details about the app itself. Amount of data: ~500GB of text data, expect to reach 1TB soon Number of concurrent users using the app: up to 50 The app will be used to present reports about data stored in HBase, like how many times keyword "X" occured in last 24h. For ~80% of requests from that app I will know the exact key, 20% will be scans (I'm looking into HBase schema design related topics to make it run fast)

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  • How to use AFIncrementalStore to binding with a NSManagedObject

    - by Matrosov Alexander
    I am searching for more information on how to use AFIncrementalStore. I need to know how to implement it step by step. Please don't down vote it, because of many resources, I really need help with this. If I understood right AFIncrementalStore it is a layer for fetching data from the server and for the mapping data model. Am I right? So I have few URL that I need to mapping into my local model. All of them use GET requests. For example base_url/api/categories I get this string in response: [{"category":{"name":"3d max","id":"1111001","users":[]}}, {"category":{"name":"photoshop","id":"1111002","users":[]}}, {"category":{"name":"auto cad","id":"1111003","users":[]}}] So I have a question how I can binding my local db with this data using AFIncrementalStore. Also if you can see there are relationships in the response string that are connected to uses. The array for users will contain id that is correspond to concert users. So I think second question is how to point that model has to have relationship.

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  • numberOfSectionsInTableView is requested in/after viewDidLoad ONLY if tableview is empty

    - by Ben Packard
    A simple tableviewController, empty. A modal that can be launched from a button. No data in the data source for the tableview, and no rows displayed. I open the modal, use it to add an item, and return to the tableview controller. The tableview updates itself automatically, and the new row is displayed. I add a second item. The table view does NOT update automatically. I can tell by logging inside numberOfSectionsInTableView that even if I go to add the first item and cancel, the tableview refreshes - it asks for the number of sections, rows, and the cell to display (if there is one). But not if there is one pre-existing row in the table. I've scoured my code but can't find anything that would cause the tableview to know when the first item is added, but none afterwards. Any ideas? EDIT - I have further narrowed my issue so will close this shortly and post a more specific question

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  • How to make WPF app work as a child process in Citrix

    - by RichardOD
    I am working on a 3rd party application that allows plugins to be written in .NET 1.1. I have decided I would like to write my plugin in a seperate process that is called from the .NET 1.1 application (achieved using Process.Start). This is fine- I create a new process that is a WPF app. When I launch this through MSTSC everything works as expected, however when I run the app through Citrix, the WPF child app fails to render correctly, and the mouse position starts going crazy- the child process window is basically not usable. Is there a way to avoid this happening? If I create a seperate WPF application and deploy this through Citrix everything works fine. If I create a child Windows forms app in .NET 3.5, that also works fine.

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  • Unknown and unreproducible crash causes App Store rejection

    - by Daniel Johnson
    After submitting our application several times, we continue to receive the following response: Thank you for submitting My App to the App Store. We've reviewed your application and determined that we cannot post this version of your iPad application to the App Store because My App is crashing on iPad running iPhone OS 3.2 and Mac OS X 10.6.2. My App crashes upon launch. Unfortunately, crash logs have not been generated. However, resigning the same build with the AdHoc entitlements and loading the build onto the device yields no such crash. After a number of attempts, the application simply does not crash as reported by the reviewer. Furthermore, the reviewer does not provide any useful logging that may have been generated by SpringBoard such as an exit status or event if it had worked properly for any other device. There are no calls to explicitly exit or quit the application in the code line and yet the application terminates on startup. What might cause an application to terminate in such a manner? Under what conditions is an application tested that might not be found under a development environment? Could it be a result of a signing issue that the submission validation system is simply unable to catch? Thanks in advance.

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  • Textview not able to move up when begin editing

    - by Jason lau
    I am having problem moving up my UITextview at the bottom. The UITextField is working properly but the UITextView is not working. Here is my code when press the TextView it pop up the toolbar. Please help - (IBAction)HideKeyboard:(id)sender { [self.myTextField resignFirstResponder]; [self.myTextView resignFirstResponder]; [self.myScrollView setContentOffset:CGPointZero animated:YES]; }

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  • Why doe my UITableView only show two rows of each section?

    - by Mike Owens
    I have a UITableView and when I build it only two rows will be displayed. Each section has more than two cells to be displayed, I am confused since they are all done the same?`#import #import "Store.h" import "VideoViewController.h" @implementation Store @synthesize listData; // Implement viewDidLoad to do additional setup after loading the view, typically from a nib. - (void)viewDidLoad { [self createTableData]; [super viewDidLoad]; } (void)didReceiveMemoryWarning { // Releases the view if it doesn't have a superview. [super didReceiveMemoryWarning]; // Release any cached data, images, etc that aren't in use. } (void)viewDidUnload { //self.listData = nil; //[super viewDidUnload]; // Release any retained subviews of the main view. // e.g. self.myOutlet = nil; } pragma mark - pragma mark Table View Data Source Methods // Customize the number of sections in the table view. - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return [videoSections count]; } //Get number of rows -(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [self.listData count]; } -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *StoreTableIdentifier = @"StoreTableIdentifier"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:StoreTableIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:StoreTableIdentifier] autorelease]; } cell.textLabel.text = [[[listData objectAtIndex:indexPath.section] objectAtIndex:indexPath.row] objectForKey:@"name"]; //Change font and color of tableView cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; cell.textLabel.font=[UIFont fontWithName:@"Georgia" size:16.0]; cell.textLabel.textColor = [UIColor brownColor]; return cell; } -(NSString *)tableView: (UITableView *)tableView titleForHeaderInSection: (NSInteger) section { return [videoSections objectAtIndex:section]; } -(void)tableView: (UITableView *)tableView didSelectRowAtIndexPath: (NSIndexPath *)indexPath { VideoViewController *videoViewController = [[VideoViewController alloc] initWithNibName: @"VideoViewController" bundle:nil]; videoViewController.detailURL = [[NSURL alloc] initWithString: [[[listData objectAtIndex:indexPath.section] objectAtIndex:indexPath.row] objectForKey:@"url"]]; videoViewController.title = [[[listData objectAtIndex:indexPath.section] objectAtIndex:indexPath.row] objectForKey:@"name"]; [self.navigationController pushViewController:videoViewController animated:YES]; [videoViewController release]; } pragma mark Table View Methods //Data in table cell -(void) createTableData { NSMutableArray *beginningVideos; NSMutableArray *intermediateVideos; videoSections = [[NSMutableArray alloc] initWithObjects: @"Beginning Videos", @"Intermediate Videos", nil]; beginningVideos = [[NSMutableArray alloc] init]; intermediateVideos = [[NSMutableArray alloc] init]; [beginningVideos addObject:[[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Shirts", @"name", @"http://www.andalee.com/iPhoneVideos/testMovie.m4v", @"url", nil]]; [beginningVideos addObject:[[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Posters", @"name", @"http://devimages.apple.com/iphone/samples/bipbopall.html", @"url", nil]]; [beginningVideos addObject:[[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Stickers",@"name", @"http://www.andalee.com/iPhoneVideos/mov.MOV",@"url",nil]]; [beginningVideos addObject:[[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Egyptian",@"name", @"http://www.andalee.com/iPhoneVideos/2ndMovie.MOV",@"url",nil]]; [intermediateVideos addObject:[[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Drum Solo", @"name", @"http://www.andalee.com", @"url", nil]]; [intermediateVideos addObject:[[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Veil", @"name", @"http://www.andalee.com", @"url", nil]]; [intermediateVideos addObject:[[NSMutableDictionary alloc] initWithObjectsAndKeys:@"Three Quarter Shimmy",@"name", @"http://www.andalee.com", @"url",nil]]; listData = [[NSMutableArray alloc] initWithObjects:beginningVideos, intermediateVideos, nil]; [beginningVideos release]; [intermediateVideos release]; } (void)dealloc { [listData release]; [videoSections release]; [super dealloc]; } @end `

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  • Getting invalid context errors

    - by Andrew
    I don't have much code thus far, only this to start: UIGraphicsBeginImageContextWithOptions(bounds.size, NO, 0); CGContextRef context = UIGraphicsGetCurrentContext(); CGMutablePathRef outerPath; CGMutablePathRef highlightPath; CGRect outerRect = rectForRectWithInset(bounds, 1); CGRect highlightRect = CGRectMake(outerRect.origin.x, outerRect.origin.y + 1, outerRect.size.width, outerRect.size.height); And then the problematic bit, which when commented out, the error goes away: CGContextSaveGState(context); CGContextAddPath(context, highlightPath); CGContextSetFillColorWithColor(context, [[UIColor colorWithWhite:1.0 alpha:0.05]CGColor]); CGContextFillPath(context); CGContextRestoreGState(context); Below that is simply: UIImage *image = UIGraphicsGetImageFromCurrentImageContext(); UIGraphicsEndImageContext();

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  • I'm trying to pass a string from my first ViewController to my second ViewController but it returns NULL

    - by Dashony
    In my first view controller I have 3 input fields each of them take the user input into and saves it into a string such as: address, username and password as NSUserDefaults. This part works fine. In my second view controller I'm trying to take the 3 strings from first controller (address, username and password) create a html link based on the 3 strings. I've tried many ways to access the 3 strings with no luck, the result I get is NULL. Here is my code: //.h file - first view controller with the 3 input fields CamSetup.h #import <UIKit/UIKit.h> @interface CamSetup : UIViewController <UITextFieldDelegate> { NSString * address; NSString * username; NSString * password; IBOutlet UITextField * addressField; IBOutlet UITextField * usernameField; IBOutlet UITextField * passwordField; } -(IBAction) saveAddress: (id) sender; -(IBAction) saveUsername: (id) sender; -(IBAction) savePassword: (id) sender; @property(nonatomic, retain) UITextField *addressField; @property(nonatomic, retain) UITextField *usernameField; @property(nonatomic, retain) UITextField *passwordField; @property(nonatomic, retain) NSString *address; @property(nonatomic, retain) NSString *username; @property(nonatomic, retain) NSString *password; @end //.m file - first view controller CamSetup.m #import "CamSetup.h" @interface CamSetup () @end @implementation CamSetup @synthesize addressField, usernameField, passwordField, address, username, password; -(IBAction) saveAddress: (id) sender { address = [[NSString alloc] initWithFormat:addressField.text]; [addressField setText:address]; NSUserDefaults *stringDefaultAddress = [NSUserDefaults standardUserDefaults]; [stringDefaultAddress setObject:address forKey:@"stringKey1"]; NSLog(@"String [%@]", address); } -(IBAction) saveUsername: (id) sender { username = [[NSString alloc] initWithFormat:usernameField.text]; [usernameField setText:username]; NSUserDefaults *stringDefaultUsername = [NSUserDefaults standardUserDefaults]; [stringDefaultUsername setObject:username forKey:@"stringKey2"]; NSLog(@"String [%@]", username); } -(IBAction) savePassword: (id) sender { password = [[NSString alloc] initWithFormat:passwordField.text]; [passwordField setText:password]; NSUserDefaults *stringDefaultPassword = [NSUserDefaults standardUserDefaults]; [stringDefaultPassword setObject:password forKey:@"stringKey3"]; NSLog(@"String [%@]", password); } - (void)viewDidLoad { [addressField setText:[[NSUserDefaults standardUserDefaults] objectForKey:@"stringKey1"]]; [usernameField setText:[[NSUserDefaults standardUserDefaults] objectForKey:@"stringKey2"]]; [passwordField setText:[[NSUserDefaults standardUserDefaults] objectForKey:@"stringKey3"]]; [super viewDidLoad]; } @end //.h second view controller LiveView.h #import <UIKit/UIKit.h> #import "CamSetup.h" @interface LiveView : UIViewController { NSString *theAddress; NSString *theUsername; NSString *thePassword; CamSetup *camsetup; //here is an instance of the first class } @property (nonatomic, retain) NSString *theAddress; @property (nonatomic, retain) NSString *theUsername; @property (nonatomic, retain) NSString *thePassword; @end //.m second view LiveView.m file #import "LiveView.h" @interface LiveView () @end @implementation LiveView @synthesize theAddress, theUsername, thePassword; - (void)viewDidLoad { [super viewDidLoad]; theUsername = camsetup.username; //this is probably not right? NSLog(@"String [%@]", theUsername); //resut here is NULL NSLog(@"String [%@]", camsetup.username); //and here NULL as well } @end

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  • How do i create a portable app (runs without installing)

    - by jiewmeng
    how do i create an app that is: lightweight: i am guessing don't require .NET frameworks maybe? portable: runs without installing and saves data in the app directory, so i can just move the folder or maybe even the exe? this is just a personal experiment: i want to try create a simple todo list app that has the above attributes i am thinking C#/WPF (but requires .NET framework, i can explore client profile tho) Appcelerator Titanium (i think this will be lightweight & good enough? i dunno if i can have a portable titanium app tho)

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  • Spring bean initialization in a web app

    - by EugeneP
    We work with a web application and autowire beans using WebApplicationContextUtils in the init method. Could you clarify some details about bean initialization? The question rises from the static factory method. Suppose there's a bean that is created in a static factory method. As we can see, when the web app is deployed, the ContextLoaderListener initializes all the beans present in Spring xml config file. Now happens such a thing. In the static factory method we run a timer that starts ticking. But in reality we wouldn't want it to start ticking unless the bean is injected into a property of the object ! That is question number one - all the beans are automatically initialized on deploy - correct? And after that when we need an injection, it simply feels the link with the address of the object created during initialization, though OBJECT WAS CREATED ON WEB APP DEPLOY, immediately ! (I assume the default singleton-creation Spring behavior) Second question: are all copies of a web app use the same beans, so all beans are WEB-APP wide, every Spring bean is shared between all the copies of this web app running?

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  • Downloading large files with AFNetworking

    - by goodfella
    I'm trying to implement downloading of a large file and show to user current progress, but block in: -[AFURLConnectionOperation setDownloadProgressBlock:] returns incorrect bytesRead and totalBytesRead values (they are smaller than they should be). For example: If I have a 90MB file and when it downloads completely, latest block invocation in setDownloadProgressBlock: gives me totalBytesRead value about 30MB. On other side, if file is 2MB large, latest block invocation gives correct totalBytesRead 2MB value. AFNetworking is updated to the latest version from github. If AFNetworking can't do it correctly, what solution can I use? Edit: I've determined that even if file is not downloaded completely (and this happens every time with relatively big file) AFNetworking calls success block in: -[AFHTTPRequestOperation setCompletionBlockWithSuccess:failure] I asked a similar question here about this situation, but didn't get any answers. I can check in code downloaded and real file sizes, but AFNetworking has no API for continuation of partial download.

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  • When to release the UIImage ?

    - by ragnarius
    I use the following code to draw a subimage UIImage* subIm = getSubImage( large, rect ); [subIm drawInRect:self.bounds]; where getSubImage is defined as follows UIImage* getSubImage(UIImage* uim, CGRect rc){ CGImageRef imref = CGImageCreateWithImageInRect(uim.CGImage, rc); UIImage* sub = [UIImage imageWithCGImage:imref]; CGImageRelease(imref); NSLog(@"subimage retainCount=%d", [sub retainCount]); // is 1 return sub; }//getSubImage Is the code correct? Is it safe to "CGImageRelease" imref? Has sub "CGImageRetained" imref? Should I release subIm (I get an error if I do)? Is subIm contained in the autorelease-pool, and , if so, how do I know this? In general, can one check if an object is contained in the autorelease pool (for debugging purpose)?

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  • Issues using UITapGestureRecognizers in Interface Builder

    - by 5StringRyan
    I'm attempting to use the UITapGestureRecognizer object that can be found in Interface Builder. I've dragged a single "UITapGestureRecognizer" from the object library to a single view xib. I then create an IBAction method from this tap gesture, for a simple test, I'm just printing an "NSLog" message to the console once there is a tap on the view. I've run this, and the tap method isn't being called. I right click the view in IB and I noticed that there is a warning "!" on the view's "Outlook Collections" I see: Outlook Collections gestureRecognizers - Tap Gesture Recognizer (!) The warning states: UIView does not have an outlet collection named gestureRecognizers. What do I need to do to remedy this?

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  • iPhone TableView Data Into 2 Sections

    - by MrPink
    Hello, I am trying to get a tableview to split data i have in an array into sections... I'm pretty new to this but below is my code snippet - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { if(section == 0) { contentArray = [[NSArray arrayWithObjects:@"Send SMS", @"Reports", nil] retain]; } if(section == 1) { contentArray = [[NSArray arrayWithObjects:@"Accounts", nil] retain]; } return [contentArray count]; } I have split the data successfully into the 2 sections but when populating the rows It just repeats the first content array in both sections. Can any one help... Thanks

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  • Why isnt my data persisting with nskeyedarchiver?

    - by aking63
    Im just working on what should be the "finishing touches" of my first iPhone game. For some reason, when I save with NSKeyedArchiver/Unarchiver, the data seems to load once and then gets lost or something. Here's what I've been able to deduce: When I save in this viewController, pop to the previous one, and then push back into this one, the data is saved and prints as I want it to. But when I save in this viewController, then push a new one and pop back into this one, the data is lost. Any idea why this might be happening? Do I have this set up all wrong? I copied it from a book months ago. Here's the methods I use to save and load. - (void) saveGameData { NSLog(@"LS:saveGameData"); // SAVE DATA IMMEDIATELY NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *gameStatePath = [documentsDirectory stringByAppendingPathComponent:@"gameState.dat"]; NSMutableData *gameSave= [NSMutableData data]; NSKeyedArchiver *encoder = [[NSKeyedArchiver alloc] initForWritingWithMutableData:gameSave]; [encoder encodeObject:categoryLockStateArray forKey:kCategoryLockStateArray]; [encoder encodeObject:self.levelsPlist forKey:@"levelsPlist"]; [encoder finishEncoding]; [gameSave writeToFile:gameStatePath atomically:YES]; NSLog(@"encoded catLockState:%@",categoryLockStateArray); } - (void) loadGameData { NSLog(@"loadGameData"); // If there is a saved file, perform the load NSMutableData *gameData = [NSData dataWithContentsOfFile:[[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0] stringByAppendingPathComponent:@"gameState.dat"]]; // LOAD GAME DATA if (gameData) { NSLog(@"-Loaded Game Data-"); NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:gameData]; self.levelsPlist = [unarchiver decodeObjectForKey:@"levelsPlist"]; categoryLockStateArray = [unarchiver decodeObjectForKey:kCategoryLockStateArray]; NSLog(@"decoded catLockState:%@",categoryLockStateArray); } // CREATE GAME DATA else { NSLog(@"-Created Game Data-"); self.levelsPlist = [[NSMutableDictionary alloc] initWithContentsOfFile:[[NSBundle mainBundle] pathForResource:kLevelsPlist ofType:@"plist"]]; } if (!categoryLockStateArray) { NSLog(@"-Created categoryLockStateArray-"); categoryLockStateArray = [[NSMutableArray alloc] initWithCapacity:[[self.levelsPlist allKeys] count]]; for (int i=0; i<[[self.levelsPlist allKeys] count]; i++) { [categoryLockStateArray insertObject:[NSNumber numberWithBool:FALSE] atIndex:i]; } } // set the properties of the categories self.categoryNames = [self.levelsPlist allKeys]; NUM_CATEGORIES = [self.categoryNames count]; thisCatCopy = [[NSMutableDictionary alloc] initWithDictionary:[[levelsPlist objectForKey:[self.categoryNames objectAtIndex:pageControl.currentPage]] mutableCopy]]; NUM_FINISHED = [[thisCatCopy objectForKey:kNumLevelsBeatenInCategory] intValue]; }

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