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  • How to set the the height of cell progamatically without using nib file ?

    - by srikanth rongali
    This is my program - (void)viewDidLoad { [super viewDidLoad]; // Uncomment the following line to display an Edit button in the navigation bar for this view controller. self.title = @"Library"; self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Close" style:UIBarButtonItemStyleBordered target:self action:@selector(close:)]; // self.tableView.rowHeight = 80; } -(void)close:(id)sender { // } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"Cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:CellIdentifier] autorelease]; UILabel *dateLabel = [[UILabel alloc]init]; dateLabel.frame = CGRectMake(85.0f, 6.0f, 200.0f, 20.0f); dateLabel.tag = tag1; [cell setAccessoryType:UITableViewCellAccessoryDisclosureIndicator]; cell.contentView.frame = CGRectMake(0.0f, 0.0f, 320.0f, 80.0f); [cell.contentView addSubview:dateLabel]; [dateLabel release]; } // Set up the cell... //[(UILabel *)[cell viewWithTag:tag1] setText:@"Date"]; cell.textLabel.text = @"Date"; return cell; } I am setting the frame size of cell in tableView: but the cell is in default size only. I mean the height I set was 80 but it was not set as 80 height. How can I make it. Thank You

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  • Transfer Core Data from One Project to Another

    - by Michael
    The answer is probably a resounding 'NO' but before I start a new project from scratch, I thought I'd ask. I create many throw away projects to test ideas and code before combining all the successful bits from the scratch projects into a final version. So I have one project with the Core Data stuff worked out but I want to move it to a new project. My guess is that there is too many internal hooks and dropping in the .xcdatamodel and the sqlite db is just not going to work. I'd glad to be wrong...

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  • How to stop moving the image in objective c?

    - by user1589452
    I have done a coding to check whether the image crossed particular area or not, -(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { CGPoint loc=[touch locationInView:self.view]; if (touch.view==img2Obj) { NSLog(@"image2"); img2Obj.center=loc; currentx1=img2Obj.frame.origin.x; currenty1=img2Obj.frame.origin.y; //NSLog(@"top left corner x and y is %.1f and %.1f",img2Obj.frame.origin.x,img2Obj.frame.origin.y); [self isImg1InPos]; }} -(void)isImg1InPos { int dx,dy; dx=currentx1-x1; dy=currenty1-y1; if (abs(dx)<5 && abs(dx)<5) { NSLog(@"Image must stop moving after this!!!"); [img2Obj setUserInteractionEnabled:FALSE]; } //NSLog(@"unsigned int is %d",abs(dx)); } I want the image to stop moving when when it passes the condition. [img2Obj setUserInteractionEnabled:FALSE]; But its not working, can anyone tell me how to solve this problem Many thanks in advance

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  • Adding days to NSDate

    - by karthick
    I want add days to a date, I got many codes for this but none of them are working for me below shown is my code,please somebody help me to fix this issue int daysToAdd=[[appDlegateObj.selectedSkuData objectForKey:@"Release Time"] intValue]; NSTimeInterval secondsForFollowOn=daysToAdd*24*60*60; NSString *dateStr=[contentDic objectForKey:@"Date"]; NSDateFormatter *dateFormatter=[[NSDateFormatter alloc]init]; [dateFormatter setDateFormat:@"yyyy-MM-dd"]; NSDate *dateFromString=[[NSDate alloc]init]; dateFromString=[dateFormatter dateFromString:dateStr]; [dateFormatter release]; NSDate *date=[dateFromString dateByAddingTimeInterval:secondsForFollowOn];

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  • Why does Custom UITableViewCell *sometimes* cause an NSInvalidArgumentException?

    - by Wayne Hartman
    I have created a custom UITableViewCell, but when I dequeue the cell, sometimes it throws an NSInvalidArgumentException: [UITableViewCell nameLabel]: unrecognized selector sent to instance 0x3b4e7f0 Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[UITableViewCell nameLabel]: unrecognized selector sent to instance 0x3b4e7f0' Now, my custom UITableViewCell does have an attribute nameLabel, so I am confused why it is throwing this error. Below is the code I use to dequeue the cell: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { NSUInteger row = [indexPath row]; CTMenuItemVO* key = [[[self retrieveCartItems] allKeys] objectAtIndex:row]; NSNumber* quantity = [[self retrieveCartItems] objectForKey:key]; static NSString* SectionsTableIdentifier = @"SectionsTableIdentifier2"; OrderItemCell* cell = (OrderItemCell*)[tableView dequeueReusableCellWithIdentifier: SectionsTableIdentifier]; if (cell == nil) { NSArray* topLevelObjects = [[NSBundle mainBundle] loadNibNamed:@"OrderItemCell" owner:nil options:nil]; for(id currentObject in topLevelObjects) { if ([currentObject isKindOfClass:[UITableViewCell class]]) { cell = (OrderItemCell*) currentObject; break; } } } cell.nameLabel.text = key.Name; cell.qtyLabel.text = [quantity stringValue]; return cell; }

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  • SQLite SQLite column can't be updated to any value but zero (real type)

    - by user1065320
    Hi I'm trying to create a three fields table (date,text,real), I can insert and update the first two fields but can't set or update the last one. createSQL = @"CREATE TABLE IF NOT EXISTS ACTIVITIES (MYDATE DATETIME PRIMARY KEY, ACTIVITY TEXT , LENGTH REAL);"; try to insert char *update = "INSERT OR REPLACE INTO ACTIVITIES (MYDATE, ACTIVITY , LENGTH) VALUES (?, ? ,?);"; sqlite3_stmt *stmt; if (sqlite3_prepare_v2(database, update , -1, &stmt, nil) == SQLITE_OK) { sqlite3_bind_double(stmt, 1, valueToWrite); sqlite3_bind_text(stmt, 2, [task UTF8String], -1, NULL); sqlite3_bind_double(stmt, 3, 1.5); } if (sqlite3_step(stmt) != SQLITE_DONE) { NSAssert1(0, @"Error updating table: %s", errorMsg); } sqlite3_finalize(stmt); sqlite3_close(database); The first two values are updated but the last one remains 0 even if I'm writing a value like 1.5 or put a double variable with a different value Thanks

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  • Problem in storing the dynamic data in NSMutableArray?

    - by Rajendra Bhole
    I want to develop an application in which firstly i was develop an structure code for storing X and y axis. struct TCo_ordinates { float x; float y; }; . Then in drawRect method i generating an object of structure like. struct TCo_ordinates *tCoordianates; Now I drawing the graph of Y-Axis its code is. fltX1 = 30; fltY1 = 5; fltX2 = fltX1; fltY2 = 270; CGContextMoveToPoint(ctx, fltX1, fltY1); CGContextAddLineToPoint(ctx, fltX2, fltY2); NSArray *hoursInDays = [[NSArray alloc] initWithObjects:@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"10",@"11",@"12", nil]; for(int intIndex = 0 ; intIndex < [hoursInDays count] ; fltY2-=20, intIndex++) { CGContextSetRGBStrokeColor(ctx, 2, 2, 2, 1); //CGContextSetRGBStrokeColor(ctx, 1.0f/255.0f, 1.0f/255.0f, 1.0f/255.0f, 1.0f); CGContextMoveToPoint(ctx, fltX1-3 , fltY2-40); CGContextAddLineToPoint(ctx, fltX1+3, fltY2-40); CGContextSelectFont(ctx, "Helvetica", 14.0, kCGEncodingMacRoman); CGContextSetTextDrawingMode(ctx, kCGTextFill); CGContextSetRGBFillColor(ctx, 0, 255, 255, 1); CGAffineTransform xform = CGAffineTransformMake( 1.0, 0.0, 0.0, -1.0, 0.0, 0.0); CGContextSetTextMatrix(ctx, xform); const char *arrayDataForYAxis = [[hoursInDays objectAtIndex:intIndex] UTF8String]; float x1 = fltX1-23; float y1 = fltY2-37; CGContextShowTextAtPoint(ctx, x1, y1, arrayDataForYAxis, strlen(arrayDataForYAxis)); CGContextStrokePath(ctx); Now i want to store generated the values of x1 and y1 in NSMutableArray dynamically, for that i was written the code. NSMutableArray *yAxisCoordinates = [[NSMutableArray alloc] autorelease]; for(int yObject = 0; yObject < intIndex; yObject++) { [yAxisCoordinates insertObject:(tCoordianates->x = x1,tCoordianates->y = y1) atIndex:yObject]; } But it didn't working. How i store the x1 and y1 values in yAxisCoordinates object. The above code is correct?????????????

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  • Facebook login on headless browser

    - by dmni
    My Facebook app has a function of automating tasks on server side headless browser (like visiting app links). Now, I use the Facebook SDKs to log user in and access user's news stream to search for links and other information. Once the app has found all the links, it is supposed to pass this information in to the headless browser which will then proceed to visit in them for example. The problem is that these headless browser windows' are not logged in. I would like the headless browser to be temporary logged in as the user launching the tasks from the app. Is this possible?

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  • Adding custom UITableViewCell crashes the simulator.

    - by nevva
    Im trying to build my application using a custom UITableViewCell. This is the code in my UIViewController that adds the viewCell to the table: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { NSLog(@"------- Tableview --------"); static NSString *MyIdentifier = @"MyIdentifier"; MyIdentifier = @"aCellIdentifier"; MyTableCell *cell = (MyTableCell *)[tableView dequeueReusableCellWithIdentifier:MyIdentifier]; if(cell == nil) { NSArray *[[NSBundle mainBundle] loadNibNamed:@"tblCellView" owner:self options:nil]; cell = tblCell; } [cell setLabelText:[NSString stringWithFormat:@"indexpath.row: %d", indexPath.row]]; //cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:MyIdentifier] autorelease]; return cell; } if i uncomment the line above "return cell" it returns a regular UITableViewCell without any errors, but as soon as i try to implement my custom cell it crashes with this error: ------- Tableview -------- 2010-04-23 11:17:33.163 SogetGolf[26935:40b] * Assertion failure in -[UITableView _createPreparedCellForGlobalRow:withIndexPath:], /SourceCache/UIKit_Sim/UIKit-984.38/UITableView.m:4709 2010-04-23 11:17:33.164 SogetGolf[26935:40b] * Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'UITableView dataSource must return a cell from tableView:cellForRowAtIndexPath:' 2010-04-23 11:17:33.165 SogetGolf[26935:40b] Stack: ( ... I have configured the .xib file as one should with the proper outlets. And the identifier of the UITableViewCell corresponds with name im trying to load from NSBundle

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  • Dynamically creating subviews of similar type

    - by Akki
    My code for above view is: -(void)viewWillAppear:(BOOL)animated{ float yh = 0; while (yh<200) { //UIView CGRect myFrame = CGRectMake(0, yh, 320, 30); UIView *myFirstView = [[UIView alloc] initWithFrame:myFrame]; myFirstView.backgroundColor = [UIColor orangeColor]; //IUILabel in UIView CGRect mylblFrame = CGRectMake(5, yh, 60, 15); UILabel *lblsize = [[UILabel alloc] initWithFrame:mylblFrame]; lblsize.text = @"Hello"; [myFirstView addSubview:lblsize]; CGRect mylbl_hi = CGRectMake(80, yh, 60, 15); UILabel *lbl_hi = [[UILabel alloc] initWithFrame:mylbl_hi]; lbl_hi.text = @"Hii"; [myFirstView addSubview:lbl_hi]; [self.view addSubview:myFirstView]; [lbl_hi release]; [lblsize release]; [myFirstView release]; yh=yh+40; } [super viewWillAppear:YES]; } I can't understand reason of it being like this...i wanted labels to be attached with my subviews of orange color...this may be odd day for me to understand what's wrong with my code...if any of you can tell me where i ma doing wrong would be great to me. This is my first time creating view programmatically..so please excuse me if all this is silly question

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  • Draw rectangle using Core Graphics with live preview

    - by mikawber
    I'm creating a simple drawing application and would like some help with drawing rectangles based on the user's touch events. I'm able to draw a rectangle using Core Graphics from the point in touchesBegan to the point in touchesEnded. This rectangle is then displayed once the touchesEnded event is fired. However, I would like to be able to do this in a 'live' fashion. Meaning, the rectangle is updated as the user drags their finger. Is this possible? Any help would be greatly appreciated, thank you!

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  • How to check image during animation

    - by TomTom
    I have set up an animation in the following way (self is an UIImageView, myImages an Array of UIImages): self.animationImages = myImages; self.animationDuration = 50; self.animationRepeatCount = 0; [self startAnimating]; During the animation I'd like to check the current image. I tried it the following way if([self image]==[UIImage imageNamed:@"image1.png"]); but this does not work. Is there a straight forward way for this? Can I keep track of which image is shown during the animation?

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  • Custom UITableViewCell from xib isn't displaying properly

    - by Kenny Wyland
    I've created custom UITableCells a bunch of times and I've never run into this problem, so I'm hoping you can help me find the thing I've missed or messed up. When I run my app, the cells in my table view appear to be standard cells with Default style. I have SettingsTableCell which is a subclass of UITableViewCell. I have a SettingsTableCell.xib which contains a UITableViewCell and inside that are a couple labels and a textfield. I've set the class type in the xib to be SettingsTableCell and the File's Owner of the xib to my table controller. My SettingsTableController has an IBOutlet property named tableCell. My cellForRowAtIndexPath contains the following code to load my table view xib and assign it to my table controller's tableCell property: static NSString *CellIdentifier = @"CellSettings"; SettingsTableCell *cell = (SettingsTableCell*)[tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { [[NSBundle mainBundle] loadNibNamed:@"SettingsTableCell" owner:self options:nil]; cell = self.tableCell; self.tableCell = nil; NSLog(@"cell=%@", cell); } This is what my xib set up looks like in IB: When I run my app, the table displays as if all of the cells are standard Default style cells though: The seriously weird part is though... if I tap on the area of the cell where the textfield SHOULD be, the keyboard does come up! The textfield isn't visible, there's no cursor or anything like that... but it does respond. The visible UILabel is obviously not the UILabel from my xib though because the label in my xib is right justified and the one showing in the app is left justified. I'm incredibly confused about how this is happening. Any help is appreciated.

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  • WINSDK: Determining whether an arbitrary pid identifies a running process on Windows

    - by Vlad Romascanu
    Attempting to implement a poor man's test of whether a process is still running or not (essentially an equivalent of the trivial kill(pid, 0).) Hoped to be able to simply call OpenProcess with some minimal desired access then test for either GetLastError() == ERROR_INVALID_PARAMETER or GetExitCodeProcess(...) != STILL_ACTIVE. Nice try... Running on Windows XP, as administrator: HANDLE hProc = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, pid); if (!hProc) { DWORD dwLastError = GetLastError(); } ...fails miserably with dwLastError == ERROR_ACCESS_DENIED when pid is owned by a different (not SYSTEM) user. Moreover, if pid was originally owned by a different user but has since terminated, OpenProcess also fails with ERROR_ACCESS_DENIED (not ERROR_INVALID_PARAMETER.) Do I have to use Process32First/Process32Next or EnumProcesses? I absolutely do not want to use SeDebugPrivilege. Thanks, V

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  • A question related to initWithNibName

    - by user217572
    hi These are the steps i'm following 1on click of home button i had set 1 value 2so i'm clicking on home button 3now i again click on application 4so my applicationdidfinishlaunching method calls 5i'm getting that value 1 6now in applicationdidfinishlaunching method i check wether the value is 1 or not 7now as per discussion value is 1 8in that condition i load the 1 view which is the view of rootviewcontroller 9but after complete execution of this viewdidload method it executes the initwithnibname of some another view my questuon is all about why 9 number executes if it executes how to debug it?

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  • get data from online once and then viewable offline

    - by user313100
    Okay, I want to have an app that takes phone numbers from an online database and displays them in a table view. When the user is not online, I want them to still be able to see the numbers they already got from the database in the table view. If the user manages to go back online, the database updates the view. My question is, is this possible to do and if so, what's the best way to approach it? (bit of a newbie, please help me out)

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  • @dynamic property needs setter with multiple behaviors

    - by ambertch
    I have a class that contains multiple user objects and as such has an array of them as an instance variable: NSMutableArray *users; The tricky part is setting it. I am deserializing these objects from a server via Objective Resource, and for backend reasons users can only be returned as a long string of UIDs - what I have locally is a separate dictionary of users keyed to UIDs. Given the string uidString of comma separated UIDs I override the default setter and populate the actual user objects: @dynamic users; - (void)setUsers:(id)uidString { users = [NSMutableArray arrayWithArray: [[User allUsersDictionary] objectsForKeys:[(NSString*)uidString componentsSeparatedByString:@","]]]; } The problem is this: I now serialize these to database using SQLitePO, which stores these as the array of user objects, not the original string. So when I retrieve it from database the setter mistakenly treats this array of user objects as a string! Where I actually want to adjust the setter's behavior when it gets this object from DB vs. over the network. I can't just make the getter serialize back into a string without tearing up large code that reference this array of user objects, and I tried to detect in the setter whether I have a string or an array coming in: if ([uidString respondsToSelector:@selector(addObject)]) { // Already an array, so don't do anything - just assign users = uidString but no success... so I'm kind of stuck - any suggestions? Thanks in advance!

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  • Objective - C, fastest way to show sequence of images in UIImageView

    - by Almas Adilbek
    I have hundreds of images, which are frame images of one animation (24 images per second). Each image size is 1024x690. My problem is, I need to make smooth animation iterating each image frame in UIImageView. I know I can use animationImages of UIImageView. But it crashes, because of memory problem. Also, I can use imageView.image = [UIImage imageNamed:@""] that would cache each image, so that the next repeat animation will be smooth. But, caching a lot of images crashed app. Now I use imageView.image = [UIImage imageWithContentsOfFile:@""], which does not crash app, but doesn't make animation so smooth. Maybe there is a better way to make good animation of frame images? Maybe I need to make some preparations, in order to somehow achieve better result. I need your advices. Thank you!

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