drance

alias gb="git branch"
alias gcb="git co -b"
alias gd="git difftool"
alias gl="git log"
alias gln="git log --name-only"
alias gs="git status"
alias gt="git tag -l"
alias gsl="git stash list"
alias gsms="git submodule sync"
alias gsmu="gsms; git submodule update --init --recursive"

drance

// Use in conjunction with e.g. KVO on AVPlayer.externalPlaybackActive
AVAudioSessionPortDescription *port = [AVAudioSession sharedInstance].currentRoute.outputs.firstObject;
if ([port.portType isEqualToString:AVAudioSessionPortAirPlay]) {
    NSLog(@"Now playing on '%@'", port.portName);
}

drance

@implementation NSOperationQueue (BHSAdditions)

+ (void)bhs_runOnMainQueue:(void (^)(void))block {
    NSParameterAssert(block);
    if ([NSThread isMainThread]) {
        block();
    } else {
        [[self mainQueue] addOperationWithBlock:block];
    }
}

drance

- (void)sleepRunLoopForInterval:(NSTimeInterval)interval whileRunningAsynchronousTest:(void (^)(dispatch_semaphore_t semaphore))test {
    dispatch_semaphore_t semaphore = dispatch_semaphore_create(0);

    NSAssert((test != NULL), @"Passed a NULL test block");
    test(semaphore);

    while(dispatch_semaphore_wait(semaphore, DISPATCH_TIME_NOW)) {
        [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:interval]];
    }
}

drance

// Passes the new operation to block so it can check for cancellation and exit early
- (NSOperation *)bhs_addOperationWithCancelableBlock:(void (^)(NSOperation *))block {
    NSBlockOperation *op = [[NSBlockOperation alloc] init];
    __weak NSBlockOperation *weakOp = op;
    [op addExecutionBlock:^{
        block(weakOp);
    }];
    [self addOperation:op];
    return op;
}

drance

@implementation UIViewController (BHSContainment)


- (void)bhs_addChildViewController:(UIViewController *)child {
    [self bhs_addChildViewController:child superview:self.view];
}

// Note this potentially forces view loads on both parent and child
// Not a problem if used in -viewDidLoad or later
// Use superview parameter with care. If it's not within the parent VC's hierarchy, you deserve to lose

drance

@implementation BHSCollectionViewFlowLayout

- (NSArray *)layoutAttributesForElementsInRect:(CGRect)rect {
    NSArray *allAttrs = [super layoutAttributesForElementsInRect:rect];
    for (UICollectionViewLayoutAttributes *attributes in allAttrs) {
        attributes.frame = CGRectIntegral(attributes.frame);
    }
    return allAttrs;
}

drance

//  ScrollieScrollView
//  PoC for an accessory view that tracks scrolling
//  Created by Matt Drance (@drance) on 12/12/11.

@interface ScrollieScrollView : UIScrollView ()
@property (strong, nonatomic) UIView *thumb;
@end

@implementation ScrollieScrollView