engmsaleh

  NSDate *timenow=[NSDate date];
    NSLog(@"Date before date2dot net=%@",[timenow description]);
  NSString *date2DotNet=[timenow dateToDotNet];
  NSLog(@"Dot net version of now = %@",date2DotNet);
  timenow=[NSDate dateFromDotNet:date2DotNet];
  NSLog(@"Date back from date2dot net=%@",[timenow description]);

engmsaleh

Common Save Patterns

Standard background save

Assuming that you don't care which NSManagedObjectContext is used, and you just want to make some changes and save them in the background, use the following method. 90% of the time, this is what you'll want.

NSManagedObjectSubclass *myObject = [NSManagedObjectSubclass MR_findFirst];

[MagicalRecord saveWithBlock:^(NSManagedObjectContext *localContext) {

engmsaleh

- (UIViewController *)topViewController{
  return [self topViewController:[UIApplication sharedApplication].keyWindow.rootViewController];
}

- (UIViewController *)topViewController:(UIViewController *)rootViewController
{
  if (rootViewController.presentedViewController == nil) {
    return rootViewController;
  }
  

engmsaleh

// info.plist from Test 5
// Open your info.plist and look for CFBundleURLSchemes
// this is the string that you will use to open that app
// You can also copy the info.plist to the root of your app and edit it. 
// You can even have multiple schemes that you can use to launch it.
// Here I can launch the app using either 'test5://' or 'pedro://'
// Be SURE to do a clean build

<key>CFBundleURLSchemes</key>
<array>

engmsaleh

// Usage example:
// input image: http://f.cl.ly/items/3v0S3w2B3N0p3e0I082d/Image%202011.07.22%2011:29:25%20PM.png
//
// UIImage *buttonImage = [UIImage ipMaskedImageNamed:@"UIButtonBarAction.png" color:[UIColor redColor]];

// .h
@interface UIImage (IPImageUtils)
+ (UIImage *)ipMaskedImageNamed:(NSString *)name color:(UIColor *)color;
@end

engmsaleh

- (UIImage*)image:(UIImage*)image withText:(NSString*)text
{
    CGRect rect = CGRectMake(0, 0, image.size.width, image.size.height);
    UIGraphicsBeginImageContextWithOptions(rect.size, NO, 0);
    [image drawInRect:rect];
    
    /// Make a copy of the default paragraph style
    NSMutableParagraphStyle *paragraphStyle = [[NSParagraphStyle defaultParagraphStyle] mutableCopy];
    /// Set line break mode
    paragraphStyle.lineBreakMode = NSLineBreakByTruncatingTail;

engmsaleh

expr (void)NSLog(@"indexPath row: %ld", (long int)[indexPath row])

engmsaleh

Generate the list yourself:

$ cd /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS*.sdk/System/Library/Frameworks/UIKit.framework/Headers
$ grep -H UI_APPEARANCE_SELECTOR ./* | sed 's/ __OSX_AVAILABLE_STARTING(__MAC_NA,__IPHONE_5_0) UI_APPEARANCE_SELECTOR;//'

---

UIActivityIndicatorView

engmsaleh

    // Source http://mikethinkingoutloud.com/color-a-uiimage/
    // init the image using imageWithRenderingMode set to AlwaysTemplate
    UIImage *image = [[UIImage imageNamed:@"checkmark"]
                      imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];
 
    // put UIImage in a UIImageView and adjust color with tintColor
    UIImageView *imageView = [[UIImageView alloc]initWithImage:image];
    imageView.tintColor = [UIColor redColor];

engmsaleh

    if ([self.shareFooterToolBar respondsToSelector:@selector(setBackgroundImage:forToolbarPosition:barMetrics:)]) {
        [self.shareFooterToolBar setBackgroundImage:[UIImage new] forToolbarPosition:UIToolbarPositionAny barMetrics:UIBarMetricsDefault];
    }
    if ([self.shareFooterToolBar respondsToSelector:@selector(setShadowImage:forToolbarPosition:)]) {
        [self.shareFooterToolBar setShadowImage:[UIImage new] forToolbarPosition:UIToolbarPositionAny];
    }