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• Moving UIScrollView in App

  - by jsetting32

  Currently, I am attempting to create the same effect as Yahoo! Weather's App where the vital day information is at the bottom of the page on the top of a UIScrollView, that's contained by a UIView. I am having a hard time thinking about how this is going to happen or how I should implement this. If the user taps on the top of the UIScrollView which is located near the bottom of the laoded UIView, and starts to scroll up (/), the UIScrollView's frame should be moved to the TOP of the current UIView's frame. So the UIScrollView's y-value should change to UIView's (self.view.frame.origin.y) if the user starts scrolling UP on the UIScrollView which is located on the UIView's y-pixel ~280. Here's what the UIViewController should look like in the beginning of loading the ViewController... Then once the user slides his finger from the bottom to the top of the screen... this should happen........ And when the user scrolls to the top of the UIScrollView with all the content within it... the view should go back to the start picture shown... How is this done? I was thinking several UIGestureRecognizer's and Instantiating the UIscrollview at the lower part of the UIView... _weatherView = [[UIScrollView alloc] initWithFrame:CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y + 250, self.view.bounds.size.width, self.view.bounds.size.height - 44)]; _weatherView.contentSize = CGSizeMake(self.view.bounds.size.width, self.view.bounds.size.height * 4); _weatherView.backgroundColor = [UIColor clearColor]; [self.view addSubview:_weatherView]; The adding some UIGestureRecognizer delegate method.... But anyone have any ideas on the UIGestureRecognizer delegate method? And how it should be implemented? I can write the psuedo-code but I am having problems finding the delegate methods :P Thank you!!! ---- Break Time.... :)

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• Do I really ned bindParam?

  - by sandelius

  Hi there! I'm trying to do a little PDO CRUD to learn some PDO. I have a question about bindParam. Here's my update method right now: public static function update($conditions = array(), $data = array(), $table = '') { self::instance(); // Late static bindings (PHP 5.3) $table = ($table === '') ? self::table() : $table; // Check which data array we want to use $values = (empty($data)) ? self::$_fields : $data; $sql = "UPDATE $table SET "; foreach ($values as $f => $v) { $sql .= "$f = ?, "; } // let's build the conditions self::build_conditions($conditions); // fix our WHERE, AND, OR, LIKE conditions $extra = self::$condition_string; // querystring $sql = rtrim($sql, ', ') . $extra; // let's merge the arrays into on $v_val = array_values($values); $c_val = array_values($conditions); $array = array_merge($v_val, self::$condition_array); $stmt = self::$db->prepare($sql); return $stmt->execute($array); } in my "self::$condition_array" I get all the right values from the ?. SO the query looks like this: UPDATE table SET this = ?, another = ? WHERE title = ? AND time = ? as you can see I dont use bindParams instead I pass the right values in the right order ($array) directly into the execute($array) method. This works like a charm BUT is it safe not use use bindParam here? If not then how can I do it? Thanks from Sweden Tobias

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• Multiple Inheritence with same Base Classes in Python

  - by Jordan Reiter

  I'm trying to wrap my head around multiple inheritance in python. Suppose I have the following base class: class Structure(object): def build(self, *args): print "I am building a structure!" self.components = args And let's say I have two classes that inherit from it: class House(Structure): def build(self, *args): print "I am building a house!" super(House, self).build(*args) class School(Structure): def build(self, type="Elementary", *args): print "I am building a school!" super(School, self).build(*args) Finally, a create a class that uses multiple inheritance: class SchoolHouse(School, House): def build(self, *args): print "I am building a schoolhouse!" super(School, self).build(*args) Then, I create a SchoolHouse object and run build on it: >>> sh = SchoolHouse() >>> sh.build("roof", "walls") I am building a schoolhouse! I am building a house! I am building a structure! So I'm wondering -- what happened to the School class? Is there any way to get Python to run both somehow? I'm wondering specifically because there are a fair number of Django packages out there that provide custom Managers for models. But there doesn't appear to be a way to combine them without writing one or the other of the Managers as inheriting from the other one. It'd be nice to just import both and use both somehow, but looks like it can't be done? Also I guess it'd just help to be pointed to a good primer on multiple inheritance in Python. I have done some work with Mixins before and really enjoy using them. I guess I just wonder if there is any elegant way to combine functionality from two different classes when they inherit from the same base class.

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• Python: Created nested dictionary from list of paths

  - by sberry2A

  I have a list of tuples the looks similar to this (simplified here, there are over 14,000 of these tuples with more complicated paths than Obj.part) [ (Obj1.part1, {<SPEC>}), (Obj1.partN, {<SPEC>}), (ObjK.partN, {<SPEC>}) ] Where Obj goes from 1 - 1000, part from 0 - 2000. These "keys" all have a dictionary of specs associated with them which act as a lookup reference for inspecting another binary file. The specs dict contains information such as the bit offset, bit size, and C type of the data pointed to by the path ObjK.partN. For example: Obj4.part500 might have this spec, {'size':32, 'offset':128, 'type':'int'} which would let me know that to access Obj4.part500 in the binary file I must unpack 32 bits from offset 128. So, now I want to take my list of strings and create a nested dictionary which in the simplified case will look like this data = { 'Obj1' : {'part1':{spec}, 'partN':{spec} }, 'ObjK' : {'part1':{spec}, 'partN':{spec} } } To do this I am currently doing two things, 1. I am using a dotdict class to be able to use dot notation for dictionary get / set. That class looks like this: class dotdict(dict): def __getattr__(self, attr): return self.get(attr, None) __setattr__ = dict.__setitem__ __delattr__ = dict.__delitem__ The method for creating the nested "dotdict"s looks like this: def addPath(self, spec, parts, base): if len(parts) > 1: item = base.setdefault(parts[0], dotdict()) self.addPath(spec, parts[1:], item) else: item = base.setdefault(parts[0], spec) return base Then I just do something like: for path, spec in paths: self.lookup = dotdict() self.addPath(spec, path.split("."), self.lookup) So, in the end self.lookup.Obj4.part500 points to the spec. Is there a better (more pythonic) way to do this?

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• Memory efficient collection class

  - by Joe

  I'm building an array of dictionaries (called keys) in my iphone application to hold the section names and row counts for a tableview. the code looks like this: [self.results removeAllObjects]; [self.keys removeAllObjects]; NSUInteger i,j = 0; NSString *key = [NSString string]; NSString *prevKey = [NSString string]; if ([self.allResults count] > 0) { prevKey = [NSString stringWithString:[[[self.allResults objectAtIndex:0] valueForKey:@"name"] substringToIndex:1]]; for (NSDictionary *theDict in self.allResults) { key = [NSString stringWithString:[[theDict valueForKey:@"name"] substringToIndex:1]]; if (![key isEqualToString:prevKey]) { NSDictionary *newDictionary = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithInt:i],@"count", prevKey,@"section", [NSNumber numberWithInt:j], @"total",nil]; [self.keys addObject:newDictionary]; prevKey = [NSString stringWithString:key]; i = 1; } else { i++; } j++; } NSDictionary *newDictionary = [NSDictionary dictionaryWithObjectsAndKeys: [NSNumber numberWithInt:i],@"count", prevKey,@"section", [NSNumber numberWithInt:j], @"total",nil]; [self.keys addObject:newDictionary]; } [self.tableview reloadData]; The code works fine first time through but I sometimes have to rebuild the entire table so I redo this code which orks fine on the simulator, but on my device the program bombs when I execute the reloadData line : malloc: *** mmap(size=3772944384) failed (error code=12) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug malloc: *** mmap(size=3772944384) failed (error code=12) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug Program received signal: “EXC_BAD_ACCESS”. If I remove the reloadData line the code works on the device. I'm wondering if this is something to do with the way I've built the keys array (ie using autoreleased strings and dictionaries).

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• What are the elegant ways to do MixIns in Python?

  - by Slava Vishnyakov

  I need to find an elegant way to do 2 kinds of MixIns. First: class A(object): def method1(self): do_something() Now, a MixInClass should make method1 do this: do_other() - A.method1() - do_smth_else() - i.e. basically "wrap" the older function. I'm pretty sure there must exist a good solution to this. Second: class B(object): def method1(self): do_something() do_more() In this case, I want MixInClass2 to be able to inject itself between do_something() and do_more(), i.e.: do_something() - MixIn.method1 - do_more(). I understand that probably this would require modifying class B - that's ok, just looking for simplest ways to achieve this. These are pretty trivial problems and I actually solved them, but my solution is tainted. Fisrt one by using self._old_method1 = self.method1(); self.method1() = self._new_method1(); and writing _new_method1() that calls to _old_method1(). Problem: multiple MixIns will all rename to _old_method1 and it is inelegant. Second MixIn one was solved by creating a dummy method call_mixin(self): pass and injecting it between calls and defining self.call_mixin(). Again inelegant and will break on multiple MixIns.. Any ideas?

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• Custom UIProgressView drawing weirdness

  - by Werner

  I am trying to create my own custom UIProgressView by subclassing it and then overwrite the drawRect function. Everything works as expected except the progress filling bar. I can't get the height and image right. The images are both in Retina resolution and the Simulator is in Retina mode. The images are called: "[email protected]" (28px high) and "[email protected]" (32px high). CustomProgressView.h #import <UIKit/UIKit.h> @interface CustomProgressView : UIProgressView @end CustomProgressView.m #import "CustomProgressView.h" @implementation CustomProgressView - (id)initWithFrame:(CGRect)frame { self = [super initWithFrame:frame]; if (self) { // Initialization code } return self; } // Only override drawRect: if you perform custom drawing. // An empty implementation adversely affects performance during animation. - (void)drawRect:(CGRect)rect { // Drawing code self.frame = CGRectMake(self.frame.origin.x, self.frame.origin.y, self.frame.size.width, 16); UIImage *progressBarTrack = [[UIImage imageNamed:@"progressBarTrack"] resizableImageWithCapInsets:UIEdgeInsetsZero]; UIImage *progressBar = [[UIImage imageNamed:@"progressBar"] resizableImageWithCapInsets:UIEdgeInsetsMake(4, 4, 5, 4)]; [progressBarTrack drawInRect:rect]; NSInteger maximumWidth = rect.size.width - 2; NSInteger currentWidth = floor([self progress] * maximumWidth); CGRect fillRect = CGRectMake(rect.origin.x + 1, rect.origin.y + 1, currentWidth, 14); [progressBar drawInRect:fillRect]; } @end The resulting ProgressView has the right height and width. It also fills at the right percentage (currently set at 80%). But the progress fill image isn't drawn correctly. Does anyone see where I go wrong?

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• I don't like Python functions that take two or more iterables. Is it a good idea?

  - by Xavier Ho

  This question came from looking at this question on Stackoverflow. def fringe8((px, py), (x1, y1, x2, y2)): Personally, it's been one of my pet peeves to see a function that takes two arguments with fixed-number iterables (like a tuple) or two or more dictionaries (Like in the Shotgun API). It's just hard to use, because of all the verbosity and double-bracketed enclosures. Wouldn't this be better: >>> class Point(object): ... def __init__(self, x, y): ... self.x = x ... self.y = y ... >>> class Rect(object): ... def __init__(self, x1, y1, x2, y2): ... self.x1 = x1 ... self.y1 = y1 ... self.x2 = x2 ... self.y2 = y2 ... >>> def fringe8(point, rect): ... # ... ... >>> >>> point = Point(2, 2) >>> rect = Rect(1, 1, 3, 3) >>> >>> fringe8(point, rect) Is there a situation where taking two or more iterable arguments is justified? Obviously the standard itertools Python library needs that, but I can't see it being pretty in maintainable, flexible code design.

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• Python base classes share attributes?

  - by tad

  Code in test.py: class Base(object): def __init__(self, l=[]): self.l = l def add(self, num): self.l.append(num) def remove(self, num): self.l.remove(num) class Derived(Base): def __init__(self, l=[]): super(Derived, self).__init__(l) Python shell session: Python 2.6.5 (r265:79063, Apr 1 2010, 05:22:20) [GCC 4.4.3 20100316 (prerelease)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> import test >>> a = test.Derived() >>> b = test.Derived() >>> a.l [] >>> b.l [] >>> a.add(1) >>> a.l [1] >>> b.l [1] >>> c = test.Derived() >>> c.l [1] I was expecting "C++-like" behavior, in which each derived object contains its own instance of the base class. Is this still the case? Why does each object appear to share the same list instance?

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• how do i call mpmovieplayer from applicationwillresignactive in ppdelegate

  - by ss30

  i'm using mpmovieplayer to play audio stream, one problem i'm having trouble with handling intruptions e.g when call is received. My player is declared in viewcontroller and i beleive i need to do something in applicationdidresignactive in my appdelegate right? how do i do that if my appdelegate isn't aware of my moviePlayer? i'm new to iphone dev so i'm learning as i go and enjoying it :) here is what i'm doing in viewcontroller -(IBAction)play1MButton:(id)sender{ [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayerStatus:) name:MPMoviePlayerPlaybackStateDidChangeNotification object:nil]; NSString *url = @"http://22.22.22.22:8000/listen.pls"; [self.activityIndicator startAnimating]; moviePlayer = [[MPMoviePlayerController alloc] initWithContentURL:[NSURL URLWithString:url]]; [moviePlayer prepareToPlay]; [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(moviePlayerLoadStateChanged:) name:MPMoviePlayerLoadStateDidChangeNotification object:nil]; } } -(void) moviePlayerStatus:(NSNotification*)notification { //MPMoviePlayerController *moviePlayer = notification.object; MPMoviePlaybackState playbackState = moviePlayer.playbackState; if(playbackState == MPMoviePlaybackStateStopped) { NSLog(@"MPMoviePlaybackStateStopped"); } else if(playbackState == MPMoviePlaybackStatePlaying) { NSLog(@"MPMoviePlaybackStatePlaying"); } else if(playbackState == MPMoviePlaybackStatePaused) { NSLog(@"MPMoviePlaybackStatePaused"); } else if(playbackState == MPMoviePlaybackStateInterrupted) { NSLog(@"MPMoviePlaybackStateInterrupted"); } else if(playbackState == MPMoviePlaybackStateSeekingForward) { NSLog(@"MPMoviePlaybackStateSeekingForward"); } else if(playbackState == MPMoviePlaybackStateSeekingBackward) { NSLog(@"MPMoviePlaybackStateSeekingBackward"); } } - (void) moviePlayerLoadStateChanged:(NSNotification*)notification { if ([moviePlayer loadState] != MPMovieLoadStateUnknown) { [[NSNotificationCenter defaultCenter] removeObserver:self name:MPMoviePlayerLoadStateDidChangeNotification object:moviePlayer]; [moviePlayer play]; [self.activityIndicator stopAnimating]; [moviePlayer setFullscreen:NO animated:NO]; } } and in appdelegate - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. self.window.rootViewController = self.viewController; [self.window makeKeyAndVisible]; AVAudioSession *audioSession = [AVAudioSession sharedInstance]; NSError *setCategoryError = nil; [audioSession setCategory:AVAudioSessionCategoryPlayback error:&setCategoryError]; if (setCategoryError) { } NSError *activationError = nil; [audioSession setActive:YES error:&activationError]; if (activationError) { } I can catch the errors but how do i use the player from appdelegate?!! thanks in advance

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• Leaks in passing the request using URL at NSString, Objective-C.

  - by Madan Mohan

  Hi Guys, I getting the leak in this method even the allocated nsstring is released. -(BOOL)getTicket:(NSString*)userName passWord:(NSString*)aPassword isLogin:(BOOL)isLogin { login =[self getloginList]; username = login.name; password = login.password; NSString* str=@""; if (isLogin == YES) { str = @"https://accounts.=true&LOGIN_ID="; str = [str stringByAppendingString:[self _encodeString:username]]; str = [str stringByAppendingString:@"&PASSWORD="]; str = [str stringByAppendingString:[self _encodeString:password]]; } else if (isLogin == NO) { str = @"https://accounts.=true&LOGIN_ID="; str = [str stringByAppendingString:[self _encodeString:userName]]; str = [str stringByAppendingString:@"&PASSWORD="]; str = [str stringByAppendingString: [self _encodeString:aPassword]]; } NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:str] cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:25.0]; [request setHTTPMethod: @"POST"]; NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];//****************** i am getting leak here showing as nsstring is leaking NSString *returnString = [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding]; printf("\n returnString in getticket:%s",[returnString UTF8String]); NSRange textRange; textRange =[returnString rangeOfString:@"TICKET"]; if(textRange.location != NSNotFound) { printf("\n **********************"); NSArray* splitValues = [returnString componentsSeparatedByString:@"TICKET="]; NSString* str1 = [splitValues objectAtIndex:1]; NSArray* splitValues1 = [str1 componentsSeparatedByString:@"RESULT"]; NSString* ticket1 = [splitValues1 objectAtIndex:0]; self.ticket = ticket1; self.isCorrectLogin = YES; [returnString release]; return YES; } else { self.isCorrectLogin = NO; [returnString release]; return NO; } return NO; } Please help me out of this problem.

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• Oracle User definied aggregate function for varray of varchar

  - by baju

  I am trying to write some aggregate function for the varray and I get this error code when I'm trying to use it with data from the DB: ORA-00600 internal error code, arguments: [kodpunp1], [], [], [], [], [], [], [], [], [], [], [] [koxsihread1], [0], [3989], [45778], [], [], [], [], [], [], [], [] Code of the function is really simple(in fact it does nothing ): create or replace TYPE "TEST_VECTOR" as varray(10) of varchar(20) ALTER TYPE "TEST_VECTOR" MODIFY LIMIT 4000 CASCADE create or replace type Test as object( lastVector TEST_VECTOR, STATIC FUNCTION ODCIAggregateInitialize(sctx in out Test) return number, MEMBER FUNCTION ODCIAggregateIterate(self in out Test, value in TEST_VECTOR) return number, MEMBER FUNCTION ODCIAggregateMerge(self IN OUT Test, ctx2 IN Test) return number, MEMBER FUNCTION ODCIAggregateTerminate(self IN Test, returnValue OUT TEST_VECTOR, flags IN number) return number ); create or replace type body Test is STATIC FUNCTION ODCIAggregateInitialize(sctx in out Test) return number is begin sctx := Test(TEST_VECTOR()); return ODCIConst.Success; end; MEMBER FUNCTION ODCIAggregateIterate(self in out Test, value in TEST_VECTOR) return number is begin self.lastVector := value; return ODCIConst.Success; end; MEMBER FUNCTION ODCIAggregateMerge(self IN OUT Test, ctx2 IN Test) return number is begin return ODCIConst.Success; end; MEMBER FUNCTION ODCIAggregateTerminate(self IN Test, returnValue OUT TEST_VECTOR, flags IN number) return number is begin returnValue := self.lastVector; return ODCIConst.Success; end; end; create or replace FUNCTION test_fn (input TEST_VECTOR) RETURN TEST_VECTOR PARALLEL_ENABLE AGGREGATE USING Test; Next I create some test data: create table t1_test_table( t1_id number not null, t1_value TEST_VECTOR not null, Constraint PRIMARY_KEY_1 PRIMARY KEY (t1_id) ) Next step is to put some data to the table insert into t1_test_table (t1_id,t1_value) values (1,TEST_VECTOR('x','y','z')) Now everything is prepared to perform queries: Select test_fn(TEST_VECTOR('y','x')) from dual Query above work well Select test_fn(t1_value) from t1_test_table where t1_id = 1 Version of Oracle DBMS I use: 11.2.0.3.0 Does anyone tried do such a thing? What can be the reason that it does not work? How to solve it? Thanks in advance for help.

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• Cocos2d on iPhone: Using Sprites Defined in Separate Class Files.

  - by srikanth rongali

  I'm trying to draw two sprites on the same screen. I have defined the two sprite objects in two separate class files. If I comment out two lines (see "item 1" comment below) then I get a display as [a backgroundimage[background2.jpg] with a sprite[grossini.png] on the left side. If I uncomment the two lines I do not get the background image and sprite of (gameScreen.m). I get only the sprite [grossinis_sister1.png] defined in (enemy.m). But what I need is a [backgroundimage[background2.jpg]], sprite[grossini.png] and sprite [grossinis_sister1.png] in one screen. This is implementation file of my first class: #import "gameScreen.h" #import "enemy.h" @implementation gameScreen -(id)init { if((self = [super init])) { CCSprite *backGroundImage = [CCSprite spriteWithFile:@"background2.jpg"]; backGroundImage.anchorPoint = ccp(0,0); CCParallaxNode *voidNode = [CCParallaxNode node]; [voidNode addChild:backGroundImage z:-1 parallaxRatio:ccp(0.0f,0.0f) positionOffset:CGPointZero]; [self addChild:voidNode]; CGSize windowSize = [[CCDirector sharedDirector] winSize]; CCSprite *player = [CCSprite spriteWithFile:@"grossini.png"]; player.position = ccp(player.contentSize.width/2, windowSize.height/2); [self addChild:player z:0]; //eSprite = [[enemy alloc]init]; //<-- see item 1 //[self addChild:eSprite]; } return self; } This is my implementation file of my second class: #import "enemy.h" #import "gameScreen.h" @implementation enemy -(id)init { if ((self = [super init])) { CGSize windowSize = [[CCDirector sharedDirector] winSize]; CCSprite *enemySprite = [CCSprite spriteWithFile:@"grossinis_sister1.png" ]; enemySprite.position = ccp(windowSize.width/2, windowSize.height/2); [self addChild:enemySprite]; } return self; } @end

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• Getting memory leak at NSURL connection in Iphone sdk.

  - by monish

  Hi guys, Here Im getting leak at the NSURL connection in my libxml parser can anyone tell how to resolve it. The code where leak generates is: - (BOOL)parseWithLibXML2Parser { BOOL success = NO; ZohoAppDelegate *appDelegate = (ZohoAppDelegate*) [ [UIApplication sharedApplication] delegate]; NSString* curl; if ([cName length] == 0) { curl = @"https://invoice.zoho.com/api/view/settings/currencies?ticket="; curl = [curl stringByAppendingString:appDelegate.ticket]; curl = [curl stringByAppendingString:@"&apikey="]; curl = [curl stringByAppendingString:appDelegate.apiKey]; curl = [curl stringByReplacingOccurrencesOfString:@"\n" withString:@""]; } NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:curl]]; NSLog(@"the request parserWithLibXml2Parser %@",theRequest); NSURLConnection *con = [[[NSURLConnection alloc] initWithRequest:theRequest delegate:self] autorelease];//Memory leak generated here at this line of code. //self.connection = con; //[con release]; // This creates a context for "push" parsing in which chunks of data that are // not "well balanced" can be passed to the context for streaming parsing. // The handler structure defined above will be used for all the parsing. The // second argument, self, will be passed as user data to each of the SAX // handlers. The last three arguments are left blank to avoid creating a tree // in memory. _xmlParserContext = xmlCreatePushParserCtxt(&simpleSAXHandlerStruct, self, NULL, 0, NULL); if(con != nil) { do { [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate distantFuture]]; } while (!_done && !self.error); } if(self.error) { //NSLog(@"parsing error"); [self.delegate parser:self encounteredError:nil]; } else { success = YES; } return success; } Anyone's help will be muck appreciated . Thank you, Monish.

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• UIImageView and UIScrollView load lot of pictures

  - by Allan.Chen

  In my app, i use UIImageView and UIScrollView to show lot of pictures(Every time there are about 20 pictures and every pictures about 600px*500px and size is about 600KB ), i use for this code to do this function. Here is code: //Here is pictures Data; self.klpArry = self.pictureData; CGSize size = self.klpScrollView1.frame.size; for (int i=0; i < [klpArr count]; i++) { UIImageView *iv = [[UIImageView alloc] initWithFrame:CGRectMake((size.width * i)+300, 20, 546, 546)]; NSString *filePath = [[NSBundle mainBundle] pathForResource:[klpArr objectAtIndex:i] ofType:@"jpg"]; UIImage *imageData = [[UIImage alloc]initWithData:[NSData dataWithContentsOfFile:filePath]]; [iv setImage:imageData]; iv.backgroundColor = [UIColor grayColor]; [self.klpScrollView1 addSubview:iv]; imageData = nil; iv = nil; iv.image = nil; filePath = nil; [imageData release]; [filePath release]; [iv release]; } // show the picture in scrollview; [self.klpScrollView1 setContentSize:CGSizeMake(size.width * numImage, size.height)]; self.klpScrollView1.pagingEnabled = YES; self.klpScrollView1.showsHorizontalScrollIndicator = NO; self.klpScrollView1.backgroundColor = [UIColor grayColor]; But everytime i init this function, the memory will increase about 5MB, Actually i release UIImageView, UIimage and UIScrollView (vi.image=nil,[vi release]) but i doesn't work, it can't release the memory. BTW, i use my friend code first vi.image=nil then vi=nil; but the pictures not to show on scrollview. any one can help me ?? Thx ~~

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• iphone: memory problems after refactor

  - by agilpwc

  I had a NIB with several view controllers in it. I modified the code and used Interface Builder decomose interface to get all the view controllers in their own Nib. But now with empty core data database, I'm getting "message sent to deallocated instance" errors. Here is the code flow: From the RootViewController this is called: if (self.dogController == nil) { DogViewController *controller = [[DogViewController alloc] initWithNibName:@"DogViewController" bundle:nil]; self.dogController = controller; [controller release]; } self.dogController.managedObjectContext = self.managedObjectContext; [self.navigationController pushViewController:self.dogController animated:YES]; Then in a dogController a button is pressed to insert a new object and the following code is excuted and the error hits on the save, according to the trace NSManagedObjectContext *context = [self.fetchedResultsController managedObjectContext]; NSEntityDescription *entity = [[self.fetchedResultsController fetchRequest] entity]; NSManagedObject *newManagedObject = [NSEntityDescription insertNewObjectForEntityForName:[entity name] inManagedObjectContext:context]; // If appropriate, configure the new managed object. [newManagedObject setValue:[NSDate date] forKey:@"birthDate"]; [newManagedObject setValue:@"-" forKey:@"callName"]; // Save the context. NSError *error = nil; if (![context save:&error]) { Then the error produced in the console is * -[JudgeViewController numberOfSectionsInTableView:]: message sent to deallocated instance 0x598e580 I'm racking my brain for hours and I can't figure out where my minor changes made something messed up. Any ideas?

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• View isn't scrolling back down after I dismiss the keyboard

  - by fmi

  I have a Tab Bar app. One of the views has a UITextView that is hidden by the keyboard when touched. I've set the view to scroll to account for the keyboard but it the view doesn't always return to it's original position after I dismiss the keyboard. Here is my code: //Scroll the view for keyboard - (void)viewWillAppear:(BOOL)animated { void (^keyBoardWillShow) (NSNotification *)= ^(NSNotification * notif) { NSDictionary* info = [notif userInfo]; NSValue* aValue = [info objectForKey:UIKeyboardFrameEndUserInfoKey]; CGSize keyboardSize = [aValue CGRectValue].size; float bottomPoint = (additionalView.frame.origin.y + additionalView.frame.size.height + 10); scrollAmount = keyboardSize.height - (self.view.frame.size.height - bottomPoint); if (scrollAmount > 0) { moveViewUp =YES; [self scrollTheView:YES]; } else moveViewUp = NO; }; [[NSNotificationCenter defaultCenter] addObserverForName:UIKeyboardWillShowNotification object:self.view.window queue:nil usingBlock:keyBoardWillShow]; void (^keyBoardWillHide) (NSNotification *)= ^(NSNotification * notif) { if (moveViewUp) [self scrollTheView:NO]; }; [[NSNotificationCenter defaultCenter] addObserverForName:UIKeyboardWillHideNotification object:self.view.window queue:nil usingBlock:keyBoardWillHide]; [super viewWillAppear:animated]; } - (void)viewWillDisappear:(BOOL)animated { [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillShowNotification object:nil]; [super viewWillDisappear:animated]; } (void)scrollTheView:(BOOL)movedUp { [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:0.3]; CGRect rect = self.view.frame; if (movedUp){ rect.origin.y -= scrollAmount; } else { rect.origin.y += scrollAmount; } self.view.frame = rect; [UIView commitAnimations]; }

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• Received memory warning. Level=2, Program received signal: “0”.

  - by sabby

  Hi friends I am getting images from webservice and loading these images in table view.But when i continue to scroll the program receives memory warning level1,level2 and then app exits with status 0.That happens only in device not in simulator. Here is my code which i am putting please help me out. - (void)viewDidLoad { [super viewDidLoad]; UIButton *infoButton = [[UIButton alloc] initWithFrame:CGRectMake(0, -4, 62, 30)]; [infoButton setBackgroundImage:[UIImage imageNamed: @"back.png"] forState:UIControlStateNormal]; [infoButton addTarget:self action:@selector(backButtonClicked) forControlEvents:UIControlEventTouchUpInside]; UIBarButtonItem *customBarButtomItem = [[UIBarButtonItem alloc] initWithCustomView:infoButton]; self.navigationItem.leftBarButtonItem = customBarButtomItem; [customBarButtomItem release]; [infoButton release]; UIButton *homeButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 62, 30)]; [homeButton setBackgroundImage:[UIImage imageNamed: @"home.png"] forState:UIControlStateNormal]; [homeButton.titleLabel setFont:[UIFont systemFontOfSize:11]]; //[homeButton setTitle:@"UPLOAD" forState:UIControlStateNormal]; [homeButton addTarget:self action:@selector(homeButtonClicked) forControlEvents:UIControlEventTouchUpInside]; UIBarButtonItem *rightBarButtom = [[UIBarButtonItem alloc] initWithCustomView:homeButton]; self.navigationItem.rightBarButtonItem = rightBarButtom; [rightBarButtom release]; [homeButton release]; sellerTableView=[[UITableView alloc]initWithFrame:CGRectMake(0, 0, 320, 416) style:UITableViewStylePlain]; sellerTableView.delegate=self; sellerTableView.dataSource=self; sellerTableView.backgroundColor=[UIColor clearColor]; sellerTableView.scrollEnabled=YES; //table.separatorColor=[UIColor grayColor]; //table.separatorColor=[UIColor whiteColor]; //[[table layer]setRoundingMode:NSNumberFormatterRoundDown]; [[sellerTableView layer]setBorderColor:[[UIColor darkGrayColor]CGColor]]; [[sellerTableView layer]setBorderWidth:2]; //[[productTable layer]setCornerRadius:10.3F]; [self.view addSubview:sellerTableView]; appDel = (SnapItAppAppDelegate*)[[UIApplication sharedApplication] delegate]; } -(void)viewWillAppear:(BOOL)animated { spinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray]; spinner.center = self.view.center; [self.view addSubview:spinner]; [spinner startAnimating]; [[SnapItParsing sharedInstance]assignSender:self]; [[SnapItParsing sharedInstance]startParsingForShowProducts:appDel.userIdString]; [sellerTableView reloadData]; } -(void)showProducts:(NSMutableArray*)proArray { if (spinner) { [spinner stopAnimating]; [spinner removeFromSuperview]; [spinner release]; spinner = nil; } if ([[[proArray objectAtIndex:1]objectForKey:@"Success"]isEqualToString:@"True"]) { //[self.navigationController popViewControllerAnimated:YES]; //self.view.alpha=.12; if (productInfoArray) { [productInfoArray release]; } productInfoArray=[[NSMutableArray alloc]init]; for (int i=2; i<[proArray count]; i++) { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; [productInfoArray addObject:[proArray objectAtIndex:i]]; NSLog(@"data fetch array is====> /n%@",productInfoArray); [pool release]; } } } #pragma mark (tableview methods) - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{ return 100; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { //return [resultarray count]; return [productInfoArray count]; } -(void)loadImagesInBackground:(NSNumber *)index{ NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; NSMutableDictionary *frame = [[productInfoArray objectAtIndex:[index intValue]] retain]; //NSLog(@"frame value ==>%@",[[frame objectForKey:@"Image"]length]); NSString *frameImagePath = [NSString stringWithFormat:@"http://apple.com/snapit/products/%@",[frame objectForKey:@"Image"]]; NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:frameImagePath]]; NSLog(@"FRAME IMAGE%d",[[frame valueForKey:@"Image" ]length]); if([[frame valueForKey:@"Image"] length] == 0){ NSString *imagePath = [[NSString alloc] initWithFormat:@"%@/%@",[[NSBundle mainBundle] resourcePath],@"no_image.png"]; UIImage *image = [UIImage imageWithContentsOfFile:imagePath]; [frame setObject:image forKey:@"friendImage"]; [imagePath release]; //[image release]; } else { //NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:frameImagePath]]; NSLog(@"image data length ==>%d",[imageData length]); if([imageData length] == 0){ NSString *imagePath = [[NSString alloc] initWithFormat:@"%@/%@",[[NSBundle mainBundle] resourcePath],@"no_image.png"]; UIImage *image = [UIImage imageWithContentsOfFile:imagePath]; [frame setObject:image forKey:@"friendImage"]; [imagePath release]; //[image release]; } else { //UIImage *image = [[UIImage alloc] initWithData:imageData]; UIImage *image = [UIImage imageWithData:imageData]; [frame setObject:image forKey:@"friendImage"]; //[image release]; } } [frame release]; frame = nil; [self performSelectorOnMainThread:@selector(reloadTable:) withObject:[NSArray arrayWithObject:[NSIndexPath indexPathForRow:[index intValue] inSection:0]] waitUntilDone:NO]; [pool release]; } -(void)reloadTable:(NSArray *)array{ NSLog(@"array ==>%@",array); [sellerTableView reloadRowsAtIndexPaths:array withRowAnimation:UITableViewRowAnimationNone]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *celltype=@"cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:celltype]; for (UIView *view in cell.contentView.subviews) { [view removeFromSuperview]; } if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"cell"] autorelease]; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; cell.backgroundColor=[UIColor clearColor]; //cell.textLabel.text=[[resultarray objectAtIndex:indexPath.row] valueForKey:@"Service"]; /*UIImage *indicatorImage = [UIImage imageNamed:@"indicator.png"]; cell.accessoryView = [[[UIImageView alloc] initWithImage:indicatorImage] autorelease];*/ /*NSThread *thread=[[NSThread alloc]initWithTarget:self selector:@selector() object:nil]; [thread setStackSize:44]; [thread start];*/ cell.backgroundView=[[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"cell.png"]]autorelease]; // [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"back.png"]] autorelease]; cell.selectionStyle=UITableViewCellSelectionStyleNone; } UIImageView *imageView= [[UIImageView alloc] initWithFrame:CGRectMake(19, 15, 75, 68)]; imageView.contentMode = UIViewContentModeScaleToFill; // @synchronized(self) //{ NSMutableDictionary *dict = [productInfoArray objectAtIndex:indexPath.row]; if([dict objectForKey:@"friendImage"] == nil){ imageView.backgroundColor = [UIColor clearColor]; if ([dict objectForKey:@"isThreadLaunched"] == nil) { [NSThread detachNewThreadSelector:@selector(loadImagesInBackground:) toTarget:self withObject:[NSNumber numberWithInt:indexPath.row]]; [dict setObject:@"Yes" forKey:@"isThreadLaunched"]; } }else { imageView.image =[dict objectForKey:@"friendImage"]; } //NSString *imagePath = [[NSString alloc] initWithFormat:@"%@/%@",[[NSBundle mainBundle] resourcePath],@"no_image.png"]; //imageView.layer.cornerRadius = 20.0;//vk //imageView.image=[UIImage imageWithContentsOfFile:imagePath]; //imageView.layer.masksToBounds = YES; //imageView.layer.borderColor = [UIColor darkGrayColor].CGColor; //imageView.layer.borderWidth = 1.0;//vk //imageView.layer.cornerRadius=7.2f; [cell.contentView addSubview:imageView]; //[imagePath release]; [imageView release]; imageView = nil; //} UILabel *productCodeLabel = [[UILabel alloc] initWithFrame:CGRectMake(105, 7, 60,20 )]; productCodeLabel.textColor = [UIColor whiteColor]; productCodeLabel.backgroundColor=[UIColor clearColor]; productCodeLabel.text=[NSString stringWithFormat:@"%@",@"Code"]; [cell.contentView addSubview:productCodeLabel]; [productCodeLabel release]; UILabel *CodeValueLabel = [[UILabel alloc] initWithFrame:CGRectMake(170, 7, 140,20 )]; CodeValueLabel.textColor = [UIColor whiteColor]; CodeValueLabel.backgroundColor=[UIColor clearColor]; CodeValueLabel.text=[NSString stringWithFormat:@"%@",[[productInfoArray objectAtIndex:indexPath.row]valueForKey:@"ID"]]; [cell.contentView addSubview:CodeValueLabel]; [CodeValueLabel release]; UILabel *productNameLabel = [[UILabel alloc] initWithFrame:CGRectMake(105, 35, 60,20 )]; productNameLabel.textColor = [UIColor whiteColor]; productNameLabel.backgroundColor=[UIColor clearColor]; productNameLabel.text=[NSString stringWithFormat:@"%@",@"Name"]; [cell.contentView addSubview:productNameLabel]; [productNameLabel release]; UILabel *NameValueLabel = [[UILabel alloc] initWithFrame:CGRectMake(170, 35, 140,20 )]; NameValueLabel.textColor = [UIColor whiteColor]; NameValueLabel.backgroundColor=[UIColor clearColor]; NameValueLabel.text=[NSString stringWithFormat:@"%@",[[productInfoArray objectAtIndex:indexPath.row]valueForKey:@"Title"]]; [cell.contentView addSubview:NameValueLabel]; [NameValueLabel release]; UILabel *dateLabel = [[UILabel alloc] initWithFrame:CGRectMake(105, 68, 60,20 )]; dateLabel.textColor = [UIColor whiteColor]; dateLabel.backgroundColor=[UIColor clearColor]; dateLabel.text=[NSString stringWithFormat:@"%@",@"Date"]; [cell.contentView addSubview:dateLabel]; [dateLabel release]; UILabel *dateValueLabel = [[UILabel alloc] initWithFrame:CGRectMake(170, 68, 140,20 )]; dateValueLabel.textColor = [UIColor whiteColor]; dateValueLabel.backgroundColor=[UIColor clearColor]; dateValueLabel.text=[NSString stringWithFormat:@"%@",[[productInfoArray objectAtIndex:indexPath.row]valueForKey:@"PostedDate"]]; dateValueLabel.font=[UIFont systemFontOfSize:14]; dateValueLabel.numberOfLines=3; dateValueLabel.adjustsFontSizeToFitWidth=YES; [dateValueLabel setLineBreakMode:UILineBreakModeCharacterWrap]; [cell.contentView addSubview:dateValueLabel]; [dateValueLabel release]; } Please-2 help me out ,where i am doing mistake.....

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• Agile web development with rails

  - by Steve

  Hi.. This code is from the agile web development with rails book.. I don't understand this part of the code... User is a model which has name,hashed_password,salt as its fields. But in the code they are mentioning about password and password confirmation, while there are no such fields in the model. Model has only hashed_password. I am sure mistake is with me. Please clear this for me :) User Model has name,hashed_password,salt. All the fields are strings require 'digest/sha1' class User < ActiveRecord::Base validates_presence_of :name validates_uniqueness_of :name attr_accessor :password_confirmation validates_confirmation_of :password validate :password_non_blank def self.authenticate(name, password) user = self.find_by_name(name) if user expected_password = encrypted_password(password, user.salt) if user.hashed_password != expected_password user = nil end end user end def password @password end def password=(pwd) @password = pwd return if pwd.blank? create_new_salt self.hashed_password = User.encrypted_password(self.password, self.salt) end private def password_non_blank errors.add(:password,"Missing password")if hashed_password.blank? end def create_new_salt self.salt = self.object_id.to_s + rand.to_s end def self.encrypted_password(password, salt) string_to_hash = password + "wibble" + salt Digest::SHA1.hexdigest(string_to_hash) end end

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• Python, lambda, find minimum

  - by qba

  I have foreach function which calls specified function on every element which it contains. I want to get minimum from thise elements but I have no idea how to write lambda or function or even a class that would manage that. Thanks for every help. I use my foreach function like this: o.foreach( lambda i: i.call() ) or o.foreach( I.call ) I don't like to make a lists or other objects. I want to iterate trough it and find min. I manage to write a class that do the think but there should be some better solution than that: class Min: def __init__(self,i): self.i = i def get_min(self): return self.i def set_val(self,o): if o.val < self.i: self.i = o.val m = Min( xmin ) self.foreach( m.set_val ) xmin = m.get_min() Ok, so I suppose that my .foreach method is non-python idea. I should do my Class iterable because all your solutions are based on lists and then everything will become easier. In C# there would be no problem with lambda function like that, so I though that python is also that powerful.

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• Paged UIScrollView with UIImageViews only showing first UIImageVIew

  - by Jonathan Brown

  I am working on a paged UIScrollView, but it only wants to show the first UIImageView within it. I add each UIImageView at an offset of the width of the scroll view, so that should create each page. When run, it says the scroll view is the right number of pages, but the images don't show. Any help would be much appreciated! int numSlides = NUM_TUTORIAL_SLIDES; NSString *fileName; UIImageView *slideImageView; CGRect slideFrame; for (int i = 1; i <= numSlides; i++) { slideFrame.origin.x = self.tutorialScrollView.frame.size.width * (i-1); slideFrame.origin.y = 0; slideFrame.size = self.tutorialScrollView.frame.size; slideImageView = [[UIImageView alloc] initWithFrame:slideFrame]; if([[AppManager sharedManager] is4inchScreen]) { fileName = [NSString stringWithFormat:@"Slide%[email protected]", i]; } else { fileName = [NSString stringWithFormat:@"Slide%[email protected]", i]; } slideImageView.image = [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:fileName ofType:nil]]; [self.tutorialScrollView addSubview:slideImageView]; [slideImageView release]; } self.tutorialScrollView.contentSize = CGSizeMake(self.tutorialScrollView.frame.size.width * numSlides, self.tutorialScrollView.frame.size.height); self.tutorialScrollView.delegate = self;

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• Popovercontroller doesn't display full

  - by user2959234

  I have an UIPopovercontroller in with an content that generate from an viewcontroller. popOverController = [[UIPopoverController alloc]initWithPopUp:emLightPopUp]; popOverController.delegate = self; // Get device position. CGRect position = {parentButton.frame.origin,emLightPopUp.popUpView.frame.size}; CGSize popUpViewFrameSize = emLightPopUp.popUpView.frame.size; Link screenshot: http://i.stack.imgur.com/AxqoG.png The issue is that when I change the position of select devices (touched button) upwards, the displayed popup will be resized like the screenshot. I already try to set content size inside the subclass of uipopover but it still doesn't work: self.popoverContentSize = emLightPopUp.popUpView.frame.size; EDIT: I solved this problems by calculate the position that display the popup and scroll the scrollview inside into an upper position. Check out this code: -(void)moveDeviceOutMiddleScreen:(id)deviceButton { UIButton* button = (UIButton*)deviceButton; CGFloat yPositionRange = button.frame.origin.y - self.floorZoomScrollView.contentOffset.y; int middle_top_y = 70; int middle_bottom_y = 166; if (yPositionRange > middle_top_y && yPositionRange < middle_bottom_y) { CGRect newRect = CGRectMake(self.floorZoomScrollView.contentOffset.x, self.floorZoomScrollView.contentOffset.y +yPositionRange*0.6, self.floorZoomScrollView.frame.size.width, self.floorZoomScrollView.frame.size.height); [self.floorZoomScrollView scrollRectToVisible:newRect animated:NO]; } } Thanks for your responses.

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• My self-generated CA is nearing it's end-of-life; what are the best practices for CA-rollover?

  - by Alphager

  Some buddies and me banded together to rent a small server to use for email, web-hosting and jabber. Early on we decided to generate our own Certificate Authority(CA) and sign all our certificates with that CA. It worked great! However, the original CA-cert is nearing it's end-of-life (it expires in five months). Obviously, we will have to generate a new cert and install it on all our computers. Are there any best practices we should follow? We have to re-generate all certs and sign them with the new CA, right?

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• Django - no module named app

  - by Koran

  Hi, I have been trying to get an application written in django working - but it is not working at all. I have been working on for some time too - and it is working on dev-server perfectly. But I am unable to put in the production env (apahce). My project name is apstat and the app name is basic. I try to access it as following Blockquote http://hostname/apstat But it shows the following error: MOD_PYTHON ERROR ProcessId: 6002 Interpreter: 'domU-12-31-39-06-DD-F4.compute-1.internal' ServerName: 'domU-12-31-39-06-DD-F4.compute-1.internal' DocumentRoot: '/home/ubuntu/server/' URI: '/apstat/' Location: '/apstat' Directory: None Filename: '/home/ubuntu/server/apstat/' PathInfo: '' Phase: 'PythonHandler' Handler: 'django.core.handlers.modpython' Traceback (most recent call last): File "/usr/lib/python2.6/dist-packages/mod_python/importer.py", line 1537, in HandlerDispatch default=default_handler, arg=req, silent=hlist.silent) File "/usr/lib/python2.6/dist-packages/mod_python/importer.py", line 1229, in _process_target result = _execute_target(config, req, object, arg) File "/usr/lib/python2.6/dist-packages/mod_python/importer.py", line 1128, in _execute_target result = object(arg) File "/usr/lib/pymodules/python2.6/django/core/handlers/modpython.py", line 228, in handler return ModPythonHandler()(req) File "/usr/lib/pymodules/python2.6/django/core/handlers/modpython.py", line 201, in __call__ response = self.get_response(request) File "/usr/lib/pymodules/python2.6/django/core/handlers/base.py", line 134, in get_response return self.handle_uncaught_exception(request, resolver, exc_info) File "/usr/lib/pymodules/python2.6/django/core/handlers/base.py", line 154, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File "/usr/lib/pymodules/python2.6/django/views/debug.py", line 40, in technical_500_response html = reporter.get_traceback_html() File "/usr/lib/pymodules/python2.6/django/views/debug.py", line 114, in get_traceback_html return t.render(c) File "/usr/lib/pymodules/python2.6/django/template/__init__.py", line 178, in render return self.nodelist.render(context) File "/usr/lib/pymodules/python2.6/django/template/__init__.py", line 779, in render bits.append(self.render_node(node, context)) File "/usr/lib/pymodules/python2.6/django/template/debug.py", line 81, in render_node raise wrapped TemplateSyntaxError: Caught an exception while rendering: No module named basic Original Traceback (most recent call last): File "/usr/lib/pymodules/python2.6/django/template/debug.py", line 71, in render_node result = node.render(context) File "/usr/lib/pymodules/python2.6/django/template/debug.py", line 87, in render output = force_unicode(self.filter_expression.resolve(context)) File "/usr/lib/pymodules/python2.6/django/template/__init__.py", line 572, in resolve new_obj = func(obj, *arg_vals) File "/usr/lib/pymodules/python2.6/django/template/defaultfilters.py", line 687, in date return format(value, arg) File "/usr/lib/pymodules/python2.6/django/utils/dateformat.py", line 269, in format return df.format(format_string) File "/usr/lib/pymodules/python2.6/django/utils/dateformat.py", line 30, in format pieces.append(force_unicode(getattr(self, piece)())) File "/usr/lib/pymodules/python2.6/django/utils/dateformat.py", line 175, in r return self.format('D, j M Y H:i:s O') File "/usr/lib/pymodules/python2.6/django/utils/dateformat.py", line 30, in format pieces.append(force_unicode(getattr(self, piece)())) File "/usr/lib/pymodules/python2.6/django/utils/encoding.py", line 71, in force_unicode s = unicode(s) File "/usr/lib/pymodules/python2.6/django/utils/functional.py", line 201, in __unicode_cast return self.__func(*self.__args, **self.__kw) File "/usr/lib/pymodules/python2.6/django/utils/translation/__init__.py", line 62, in ugettext return real_ugettext(message) File "/usr/lib/pymodules/python2.6/django/utils/translation/trans_real.py", line 286, in ugettext return do_translate(message, 'ugettext') File "/usr/lib/pymodules/python2.6/django/utils/translation/trans_real.py", line 276, in do_translate _default = translation(settings.LANGUAGE_CODE) File "/usr/lib/pymodules/python2.6/django/utils/translation/trans_real.py", line 194, in translation default_translation = _fetch(settings.LANGUAGE_CODE) File "/usr/lib/pymodules/python2.6/django/utils/translation/trans_real.py", line 180, in _fetch app = import_module(appname) File "/usr/lib/pymodules/python2.6/django/utils/importlib.py", line 35, in import_module __import__(name) ImportError: No module named basic My settings.py is as follows: INSTALLED_APPS = ( 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.sites', 'apstat.basic', 'django.contrib.admin', ) If I remove the apstat.basic, it goes through, but that is not a solution. Is it something I am doing in apache? My apache - settings are - <VirtualHost *:80> ServerAdmin webmaster@localhost DocumentRoot /home/ubuntu/server/ <Directory /> Options None AllowOverride None </Directory> <Directory /home/ubuntu/server/apstat> AllowOverride None Order allow,deny allow from all </Directory> <Location "/apstat"> SetHandler python-program PythonHandler django.core.handlers.modpython SetEnv DJANGO_SETTINGS_MODULE apstat.settings PythonOption django.root /home/ubuntu/server/ PythonDebug On PythonPath "['/home/ubuntu/server/'] + sys.path" </Location> </VirtualHost> I have now sat for more than a day on this. If someone can help me out, it would be very nice.

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• UIButton addTarget:action:forControlEvents: results in [NSObject doesNotRecognizeSelector:]

  - by Teodor

  Hi. I tried a lot of stuff, still no result. So I have the following button created programatically in a subclass of UIViewController: rightButton = [UIButton buttonWithType:UIButtonTypeCustom]; rightButton.frame = CGRectMake(0.0, 0.0, 110.0, 40.0); rightButton.titleLabel.font = [UIFont fontWithName:GAME_FONT_NAME_STRING size:20.0]; [rightButton setTitle:@"MyTitle" forState:UIControlStateNormal]; rightButton.backgroundColor = [UIColor clearColor]; [rightButton setTitleColor:[UIColor greenColor] forState:UIControlStateNormal]; [rightButton setTitleColor:[UIColor blackColor] forState:UIControlStateHighlighted]; [rightButton setBackgroundImage:normalImage forState:UIControlStateNormal]; [rightButton setBackgroundImage:highlightedImage forState:UIControlStateHighlighted]; [rightButton addTarget:self action:@selector(myButton) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:rightButton]; where the selector is: - (void)myButton; I tried everything: - (void)myButton; - (void)myButton:(id)sender; - (void)myButton:(id)sender forEvent:(UIEvent *)event; - (IBAction)myButton; - (IBAction)myButton:(id)sender; - (IBAction)myButton:(id)sender forEvent:(UIEvent *)event; and the corresponding selectors, of course: [rightButton addTarget:self action:@selector(myButton) forControlEvents:UIControlEventTouchUpInside]; [rightButton addTarget:self action:@selector(myButton:) forControlEvents:UIControlEventTouchUpInside]; [rightButton addTarget:self action:@selector(myButton:forEvent:) forControlEvents:UIControlEventTouchUpInside]; [rightButton addTarget:self action:@selector(myButton) forControlEvents:UIControlEventTouchUpInside]; [rightButton addTarget:self action:@selector(myButton:) forControlEvents:UIControlEventTouchUpInside]; [rightButton addTarget:self action:@selector(myButton:forEvent:) forControlEvents:UIControlEventTouchUpInside]; The result is always an uncaught exception - [NSObject doesNotRecognizeSelector:]. However, the usual backtrace of the program is: #0 0x92a6bedb in objc_msgSend () #1 0x03b0a430 in ?? () #2 0x00306b4e in -[UIControl sendAction:to:forEvent:] () #3 0x00308d6f in -[UIControl(Internal) _sendActionsForEvents:withEvent:] () #4 0x00307abb in -[UIControl touchesEnded:withEvent:] () #5 0x002bcddf in -[UIWindow _sendTouchesForEvent:] () #6 0x002a67c8 in -[UIApplication sendEvent:] () #7 0x002ad061 in _UIApplicationHandleEvent () #8 0x02498d59 in PurpleEventCallback () #9 0x01cabb80 in CFRunLoopRunSpecific () #10 0x01caac48 in CFRunLoopRunInMode () #11 0x02497615 in GSEventRunModal () #12 0x024976da in GSEventRun () #13 0x002adfaf in UIApplicationMain () So what is the problem with that button? PS: I am using the iPhone SDK 3.1.3 Update! The following code in the AppDelegate (no declarations in the interface): - (void)applicationDidFinishLaunching:(UIApplication *)application { UIButton *test = [[UIButton alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 100.0)]; [test setTitle:@"Title" forState:UIControlStateNormal]; UIImage *bg = [UIImage imageNamed:...]; [test setBackgroundImage:bg forState:UIControlStateNormal]; [test addTarget:self action:@selector(testAction) forControlEvents:UIControlEventTouchUpInside]; [window addSubview:test]; [test release]; [window makeKeyAndVisible]; } - (void)testAction { NSLog(@"Write something..."); } works perfectly! But if I create an empty UIViewController with the same code: - (void)viewDidLoad { UIButton *test = [[UIButton alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 100.0)]; [test setTitle:@"Title" forState:UIControlStateNormal]; UIImage *bg = [UIImage imageNamed:...]; [test setBackgroundImage:bg forState:UIControlStateNormal]; [test addTarget:self action:@selector(testAction) forControlEvents:UIControlEventTouchUpInside]; [self.view addSubview:test]; [test release]; [window makeKeyAndVisible]; } - (void)testAction { NSLog(@"Write something..."); } I get this mysterious error. :-( Help!

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