jpmhouston

// call from a view controller's -viewDidLayoutSubviews or -viewWillAppear:
// pass it a text field, etc, assign result to that text field's attributedPlaceholder property
// note that the maxKerning parameter must be a negative value (a "maximally negative" kerning value)

// pro tip: i've sometimes found that a text field still has incorrect bounds in -viewDidLayoutSubviews
// and needs to forcibly have its layout done:
//- (void)viewDidLayoutSubviews {
//   [self.field layoutIfNeeded];
//   self.field.attributedPlaceholder = [self resizedPlaceholderForField:self.field withPadding:4.0 maxKerningReduction:0.3];
//}

jpmhouston

@interface MixedPOSTHTTPSessionManager : AFHTTPSessionManager
- (NSURLSessionDataTask *)POST:(NSString *)URLString
                    parameters:(id)parameters
                JSONParameters:(NSDictionary *)jsonParameters
                       success:(void (^)(NSURLSessionDataTask *task, id responseObject))success
                       failure:(void (^)(NSURLSessionDataTask *task, NSError *error))failure;
@end

@implementation MixedPOSTHTTPSessionManager

jpmhouston

Verifying I am +jpmhouston on my passcard. https://onename.com/jpmhouston

jpmhouston

Keybase proof

I hereby claim:

• I am jpmhouston on github.
• I am jpmhouston (https://keybase.io/jpmhouston) on keybase.
• I have a public key ASAvAMoNWlz7u41pqqpci8CXG1_2hzd_M7xuRrQDerLJuwo

To claim this, I am signing this object:

jpmhouston

** Generating signature for https://api.login.yahoo.com/oauth/v2/get_request_token
** Parameters for base signature string:
oauth_callback=http%3A%2F%2Flocalhost&
oauth_consumer_key=dj0yJmk9Q1BTWWoxZVd0QlBGJmQ9WVdrOWVGcEVWbWxTTldrbWNHbzlNQS0tJnM9Y29uc3VtZXJzZWNyZXQmeD1hMQ--&
oauth_nonce=48FD2DE7-0380-40AA-BF8C-3C61341ACCCE&
oauth_signature_method=HMAC-SHA1&
oauth_timestamp=1425329590&
oauth_version=1.0

** Base signature string:

jpmhouston

https://api.login.yahoo.com/oauth/v2/get_request_token?oauth_callback=http%3A%2F%2Flocalhost&oauth_consumer_key=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx--&oauth_nonce=9D342B75-2A27-4A88-93E5-53DD4AE292F8&oauth_signature=sC0HZuTJySrxLCASwkvzbOwl1J4%3D&oauth_signature_method=HMAC-SHA1&oauth_timestamp=1425086133&oauth_version=1.0

signature is generated from putting these parameters into the base string, in correct sorted order:
oauth_callback=http%3A%2F%2Flocalhost&
oauth_consumer_key=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx--&
oauth_nonce=53DBBE7A-9A1F-4113-BFD3-26B31547CEA7&
oauth_signature_method=HMAC-SHA1&
oauth_timestamp=1425324801&
oauth_version=1.0

jpmhouston

@implementation NSDictionary (MapDictKeysContainingPeriods)

- (NSDictionary *)dictionaryWithPeriodsInKeysMappedTo:(NSString *)replacement
{
    NSMutableDictionary *updatedDictionary = [self mutableCopy];
    NSAssert1(updatedDictionary != self, @"mutableCopy returned same object pointer: %@", updatedDictionary); // i don't think this ever happens
    BOOL changed = NO;
    for (NSString *key in updatedDictionary.allKeys)
    {
        id value = [updatedDictionary objectForKey:key];

jpmhouston

#import <Foundation/Foundation.h>

@interface AsyncOperation : NSOperation

@property (nonatomic, assign) BOOL isExecuting; // yes, explicity not '.. getter=isExecuting) BOOL executing'
@property (nonatomic, assign) BOOL isFinished; // the KVC keys must be isExecuting & isFinished, with the 'is'

typedef void (^FinishBlock)(void);

+ (instancetype)asyncOperationWithBlock:(void (^)(FinishBlock finishBlock))block;

jpmhouston

@interface NSObject (Backtrace)

+ (NSString *)appBacktraceOfDepth:(int)depth fromStackSymbols:(NSArray *)frames;
+ (NSString *)backtraceOfDepth:(int)depth fromStackSymbols:(NSArray *)frames;
+ (NSString *)backtraceOfDepth:(int)depth fromStackSymbols:(NSArray *)frames matching:(NSString *)from;

@end

#define BACKTRACE_DEPTH(DEPTH) ([[NSThread class] respondsToSelector:@selector(callStackSymbols)] ? [NSObject appBacktraceOfDepth:DEPTH fromStackSymbols:[NSThread callStackSymbols]] : @"")
#define CALLSTACK_DEPTH(DEPTH) BACKTRACE_DEPTH(DEPTH)

jpmhouston

//
//  PushPopNotifyingNavigationController.h
//  
//
//  Created by Pierre Houston on 2013-07-29.
//
// Add new notifications to UINavigationController, for when interested in when a
// view is specifically pushed or popped, instead of the normal delegate method
// which are called when views are revealed in either manner indistinguishably.