ios7

问题 I have original image and I can cycle all pixels using @patrick-rutkowski answer here. Also I have this answer seems to create image with pixel data. But I can't understand how to combine these two answers. So the first task is get pixel and second is add it to another CGImage. For example if I want to extract all red pixels from the original image and add these red pixels to another image. I suppose it's way to go. 来源： https://stackoverflow.com/questions/28310186/create-new-image-using-just

问题 I am currently trying to create a busy animation that looks like this: The broken part of the loop continually spins around the circle to signal that an operation is in progress. I am defining two circles using CAShapeLayer, one circle is 'filling in' the circle with strokeEnd and the other is 'clearing' with strokeStart. The 'clearing circle' starts 1/10 of the way in front of the 'filling circle': NSInteger radius = self.frame.size.width / 2; CGFloat lineWidth = radius / 7.5; UIColor *color

问题 Below is my setup: - (RKManagedObjectStore *)setupCoreDataWithRESTKit { NSError * error; NSURL * modelURL = [NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"App" ofType:@"momd"]]; NSManagedObjectModel * managedObjectModel = [[[NSManagedObjectModel alloc] initWithContentsOfURL:modelURL] mutableCopy]; self.managedObjectStore = [[RKManagedObjectStore alloc] initWithManagedObjectModel:managedObjectModel]; [self.managedObjectStore createPersistentStoreCoordinator]; NSArray *

问题 I don't use UITableViews that much but need to in this case. I have a fairly complex Menu object. It has headers and items, like so (imagine a rails acts_as_tree where the menuHeaders array can be arbitrarily deep so there three abstractios: a Menu, a MenuHeaders array which can be nested, and a MenuItems array): Menu \menuHeaders is an array menuHeader - name="Service" \menuHeaders[] \menuItems \menuItem="transmission fix" \menuItem="replace gaskets" menuHeader - name="Specials" \menuHeaders

问题 We are trying to implement AWS Security Token Service in our android and iOS app. At backend we are using below code to generate token: public class CloudManagementImpl implements CloudManagement{ private static final Logger Log = LoggerFactory.getLogger(CloudManagementImpl.class); @Override public CloudConfiguration getCloudProperties() { CloudConfiguration CloudConfiguration = new CloudConfiguration(); AssumeRoleRequest assumeRoleRequest = new AssumeRoleRequest(); assumeRoleRequest

问题 I want to add a custom label (with a time stamp) in each cell as well as an image (for warning message) in JSQMessageViewController. I am already using bottomlabel as well as toplabel. But I am unable to get the result I want. The image is a reference of what I would like it to look like 回答1: UIImage *bubbleImage = [UIImage imageNamed:@"Commentbox_right.png"]; UIImageView *imgView = [[UIImageView alloc]initWithFrame:CGRectMake(textFrame.origin.x-2, textFrame.origin.y-2, textFrame.size.width+4

问题 To my view I add imageView but after I remove it this image stay on view, how remove it ? Create: (void)handleTapHold:(UILongPressGestureRecognizer *)gestureRecognizer{ UIImageView *pinkIm = [[UIImageView alloc]initWithFrame:CGRectMake(self.roundView.frame.origin.x + 70, self.roundView.frame.origin.y - 70, 60, 60)]; [pinkIm setImage:[UIImage imageNamed:@"pink_print"]]; pinkIm.layer.cornerRadius = pinkIm.frame.size.height / 2; pinkIm.layer.borderWidth = 3.0f; pinkIm.layer.borderColor =

问题 This error just started showing up following upgrade to 6.10.0, so a different issue to the other questions reporting this same issue. I've walked through the code and setting the Root View Controller of the GADBannerView doesn't take effect: [self.adUnit setRootViewController:controller]; NSLog(@"Ad Unit: %@", [self.adUnit class]); NSLog(@"Root VC: %@", [controller class]); NSLog(@"Ad Unit Root VC: %@", [self.adUnit.rootViewController class]); Results in: 2014-07-25 11:52:23.234 *** [16665

问题 I came across this great example which helped me understand how I can achieve line spacing / paragraph spacing as you type inside a UITextView with iOS7, however there is a problem and I am hoping someone can help me with resolving an issue as I am still learning about TextKit please. This is the actual example https://github.com/downie/DoubleSpacedTextView I have attached 2 files:- 1- This is a video of the problem:- http://1drv.ms/1o8Rpd2 2- This is the project I am testing with: http:/

问题 This question already has answers here : How can I make a UITextField move up when the keyboard is present - on starting to edit? (93 answers) Closed 5 years ago . I have made an app with a Registration form. When the Textfield in this form is selected it gets hidden by the soft keyboard. If i leave it as it is user can't see what he is entering while typing. 回答1: this is the old method ,but working fine for each time in your .h file @interface signupViewController : UIViewController {