ios7

问题 In my iOS app I need either prevent the screenshot capture (by pressing combination of Home +Power button), or need to detect before it saved to the Photo library . In previous iOS version before taking screenshot touchesCancelled:withEvent this method will called , but iOS7 onwards this wont work. Apple provide a notification UIApplicationUserDidTakeScreenshotNotification for detecting screenshot capture .The real problem is this will fire only after the screenshot is saved in Photo library

问题 Hi how i can disable the autorotation for a view in a tabview controller?? i have testet to disable in a navigationclass, but thats not possible. Thats my didFinishLaunching in the AppDelegate.m. I hope everyone have an idea?? Thanks! - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Set the application defaults NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults]; NSDictionary *appDefaults = [NSDictionary

问题 Our branding approach has us disabling the translucency property in iOS 7 in navigation and tab bars. With a tab bar controller, the translucency is off for all the tabs, except when we click "more". If we choose one of the options on the "more" list, and then go back, then the translucency is gone (correctly). Changing tabs is correct. When we go to "more" the first time, we want the translucency effect to not be applied. Steps to Reproduce: 1. Tab bar controller with more than 5 tabs. 2.

问题 I am using EGOPhotoViewer to load up a bunch of images from the s3. They are shown in thumbnails first in table view, so when a user clicks 5th row of image, it loaded the image into image viewer starting at 5 of 20 . and this is working smoothly in ios 6. but when I installed ios 7 and run my app.I got an error. it fails to load the clicked image. when user click 5th row of image,image viewer load the very 1st image starting at 1 of 20. i am using this much of code. - (void)tableView:

问题 For reference, I'm running the below on an iPad with iOS 7.0.4. The vc is a presented modally as a form page. The search vc is the second vc on the navigation stack. My table is setup with a search bar and search display controller and is working fine with the search bar located in the header of the table. It returns search results just fine...see image: !http://www.mcartherstkd.com/images/search.png I make a one line code change in the vc's viewdidload method to move the search bar to the

问题 I have found this code: CGAffineTransform myTransform = CGAffineTransformMakeTranslation(0.0, 130.0); [myAlertView setTransform:myTransform]; But seems it want move up my alert to the top. How can I move up alert view to the top? Set frame does not help as well. alerView.frame = rect; 回答1: You can't, if you're using a UIAlertView . From the apple docs: Appearance of Alert Views You cannot customize the appearance of alert views. else where.... Subclassing Notes The UIAlertView class is

问题 I have been trying to set up a UIScrollView within a custom UITableViewCell . I have tried adding a UIScrollView within the custom .xib file, subclassing it and also manually adding it as a subview to the UITableViewCell in the cellForRowAtIndexPath method. In all these, I have set the contentSize of the UIScrollView within cellForRowAtIndexPath . But regardless of the approach, I have been unable to make it scroll horizontally. Here is some code to give you an idea. - (UITableViewCell *

问题 I have a table view backed up by core data with NSFetchedResultsController instance. This table has a search bar that displays filtered data. The search bar has a separate NSFetchedResultsController (FRC from now) instance. So far so good, the data is fetched and shown as expected in the table view and also shown correctly in the search bar's table view (when searching for data). My problem is that if I try to delete a cell in the search bar's table view then I get a coredata exception :

问题 I have a table view backed up by core data with NSFetchedResultsController instance. This table has a search bar that displays filtered data. The search bar has a separate NSFetchedResultsController (FRC from now) instance. So far so good, the data is fetched and shown as expected in the table view and also shown correctly in the search bar's table view (when searching for data). My problem is that if I try to delete a cell in the search bar's table view then I get a coredata exception :

问题 I have a table view backed up by core data with NSFetchedResultsController instance. This table has a search bar that displays filtered data. The search bar has a separate NSFetchedResultsController (FRC from now) instance. So far so good, the data is fetched and shown as expected in the table view and also shown correctly in the search bar's table view (when searching for data). My problem is that if I try to delete a cell in the search bar's table view then I get a coredata exception :