alanjrogers

#import <Foundation/Foundation.h>

@interface TestClass : NSObject
@property (nonatomic, strong) __attribute__((NSObject)) CFStringRef str;
@end

@implementation TestClass
@end

int main(int argc, char* argv[]) {

alanjrogers

/* When adding the persistent store to a PSC

pragmaOptions = [[NSDictionary alloc] initWithObjectsAndKeys:@"WAL", @"journal_mode", nil];
storeOptions = [[NSDictionary alloc] initWithObjectsAndKeys:pragmaOptions, NSSQLitePragmasOption, nil];

This will allow multiple readers, and at most writer to connect to the Sqlite DB.  Default journalling only allows multiple readers OR 1 writer (ie. writing blocks all reading).

*/

alanjrogers

static NSString *MYObservationContext = @"MYObservationContext";

[object addObserver:self forKeyPath:@"key.path" options:(NSKeyValueObservingOptionOld | NSKeyValueObservingOptionNew) context:(void*)&MYObservationContext];

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
    if (context == &MYObservationContext) {
        id oldValue = [change objectForKey:NSKeyValueChangeOldKey];
        id newValue = [change objectForKey:NSKeyValueChangeNewKey];
        // Do something
    }

alanjrogers

// When the dom node is [object HTMLObjectElement]
// element is not a valid object ==> crash

- (void)mouseMoved:(NSEvent *)theEvent {
	NSPoint mouseLocation = [self.webView convertPoint:[theEvent locationInWindow] fromView:nil];
	mouseLocation.y = [self.webView frame].size.height - mouseLocation.y;
	
	id element2 = [[self.webView windowScriptObject] evaluateWebScript:[NSString stringWithFormat:@"document.elementFromPoint(%f,%f);", mouseLocation.x, mouseLocation.y]];
	id element = [[self.webView windowScriptObject] evaluateWebScript:[NSString stringWithFormat:@"\"result: \" + document.elementFromPoint(%f,%f)", mouseLocation.x, mouseLocation.y]];

alanjrogers

__block NSManagedObject* object = nil;

[privateQueueContext performBlockAndWait:^{
  object = [SomeClass methodThatExecutesFetchRequestReturningObjectUsingContext:privateQueueContext];
}];

// Is it safe to use object here?

NSLog(@"object: %@", object);

alanjrogers

NSArray* stringArray = [NSArray arrayWithObjects:@"One", @"Two", @"Three", @"Four", nil];

[stringArray enumerateObjectsUsingBlock:^(NSString* obj, NSUInteger idx, BOOL *stop) {
    NSLog(@"%@", obj);
}];

alanjrogers

- (void)loadViewController:(UIViewController*)viewController withTransition:(AJRNavigationControllerTransition)transition
{
    // This currently only works for a landscape only App.
    // Needs to check orientation as nav controller view isn't rotated.
    NSString* subtype = kCATransitionFromBottom;
    
    switch (transition)
    {
        case AJRNavigationControllerTransition_FromLeft:
        {

alanjrogers

UIImage* newImage = [UIImage imageNamed:context];
        
// set up an animation for the transition the content
CATransition *animation = [CATransition animation];
[animation setDuration:0.25];
[animation setType:kCATransitionPush];
[animation setSubtype:kCATransitionFromRight];
[animation setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
        
[[self.contentImageView layer] addAnimation:animation forKey:@"SwitchToView1"];

alanjrogers

CGSize imageSize = CGSizeMake(1000, 1000);

CGColorSpaceRef colorSpace = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);

CGContextRef theContext = CGBitmapContextCreate(NULL, imageSize.width, imageSize.height, 8, 4*imageSize.width, colorSpace, kCGImageAlphaPremultipliedLast);
    
[layerView.layer renderInContext:theContext];

// Layer tree has backgroundFilters set on some of the CALayers
// When it's rendered in the Bitmap Context, none of these filters are applied.

alanjrogers

- (void)webViewDidFinishLoad:(UIWebView *)webView
{
    if (webView.subviews.count > 0)
    {
        id aView = [webView.subviews objectAtIndex:0];
    
        if ([aView respondsToSelector:@selector(setScrollEnabled:)])
        {
            ((UIScrollView*)aView).scrollEnabled = NO;
        }