kristopherjohnson

#import <Foundation/Foundation.h>

@interface NSJSONSerialization (KDJJSONFiles)

// Returns a Foundation object from JSON data in given file
+ (id)kdj_JSONObjectWithFileAtPath:(NSString *)path options:(NSJSONReadingOptions)options error:(NSError **)error;

// Write JSON object to file at specified path
//
// Returns number of bytes written to the file, or 0 if an error occurs

kristopherjohnson

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {

    self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];

    NSDictionary *env = [[NSProcessInfo processInfo] environment];
    // This environment variable is set by the scheme when the app is being launched for unit testing
    if (env[@"KDJ_IsRunningUnitTests"] != nil) {
        // Show "Running Unit Tests" view when running tests, rather than initializing the app
        self.window.rootViewController = [[KDJUnitTestViewController alloc] init];
        [self.window makeKeyAndVisible];

kristopherjohnson

// %filltext:name=ClassName:default=ManagedObject%+Operations.h
// (for entity %filltext:name=EntityName:default=Entity%)

#import "%filltext:name=ClassName:default=ManagedObject%.h"

// Category of operations on %filltext:name=ClassName:default=ManagedObject% that are not automatically generated.
//
// Defining these operations in a category lets us re-generate %filltext:name=ClassName:default=ManagedObject%.h and
// %filltext:name=ClassName:default=ManagedObject%.m whenever the schema changes.
@interface %filltext:name=ClassName:default=ManagedObject% (Operations)

kristopherjohnson

    dispatch_semaphore_t asyncComplete = dispatch_semaphore_create(0);
    
    // TODO: Replace this with asynchronous code. Call dispatch_semaphore_signal(asyncComplete) on completion
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        dispatch_semaphore_signal(asyncComplete);
    });
    
    // Wait for completion or timeout
    NSDate *timeoutDate = [NSDate dateWithTimeIntervalSinceNow:<#timeoutSeconds#>];
    while (dispatch_semaphore_wait(asyncComplete, DISPATCH_TIME_NOW) && ([[NSDate date] timeIntervalSinceDate:timeoutDate] < 0)) {

kristopherjohnson

@interface KDJCoreDataUsingThing ()

// Private-queue context used to modify persistent store
@property (nonatomic) NSManagedObjectContext *privateContext;

// Main-queue context used by user interface
@property (nonatomic) NSManagedObjectContext *mainQueueContext;

@end

kristopherjohnson

- (NSString *)appVersionString {
    NSDictionary *info = [[NSBundle mainBundle] infoDictionary];
    
    NSString *shortVersionString = info[@"CFBundleShortVersionString"];
    NSString *bundleVersion = info[@"CFBundleVersion"];
    
    return [NSString stringWithFormat:NSLocalizedString(@"Version %@ (%@)", nil),
            shortVersionString, bundleVersion];
}

kristopherjohnson

#import <CoreData/CoreData.h>

@interface NSManagedObjectContext (KDJExistingObjects)

// Returns objects with specified object IDs. Returns nil if any of the objects cannot be fetched or do not exist.
- (NSArray *)kdj_existingObjectsWithIDs:(NSArray *)objectIDArray error:(NSError **)error;

@end

kristopherjohnson

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

kristopherjohnson

0. Turn MF8300C on, press the Scan button on the console, and select Remote Scanner from the menu
1. Start Preview.app
2. Choose File -> Import from Scanner -> Canon MF8300C Series
3. Put page(s) on scanner face up.
4. Click the Scan button in the Import from Canon MF8300C dialog.
5. Pages will appear in a new Preview document
6. Select all pages
7. File -> Export as PDF...

kristopherjohnson

package net.kristopherjohnson.util;

import android.util.Log;

/**
 * Static utility methods related to logging, using the android.util.Log class.
 * 
 * All application classes should use the methods of this class rather than using
 * android.util.Log directly, to allow application-level customization of the logging mechanism.
 */