ios7

问题 I am woking on ios7. In My app i am having UITableView and UISearchBar Controller. while implementing UISearchBar Controller my application crashes DUE TO following reason: Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'unable to dequeue a cell with identifier listcell - must register a nib or a class for the identifier or connect a prototype cell in a storyboard' i am using custom UITabelViewCell.UISearchBarController delegate methods are also

问题 I have a online radio player with tab footer functionality. The first tab contains player, second the website and third some message box. Now whats happening is that when I play the song in first footer, and then going to another footer, and coming back to first footer, the song is getting started again. Here is the code: FirstViewController.m #import "FirstViewController.h" CM_EXPORT const CMTime kCMTimeZero; @interface FirstViewController () @end @implementation FirstViewController

问题 I'm using Xcode Version 5.0 (5A1413) and targeting iOS7 for iPhone. I have nothing but a UIViewController with a Table View on it. Everything I've found says to just set the table's dataSource and delegate to the ViewController. No matter what I do the app just crashes immediately. The view never loads even though there's no code written manually at all. Is it no longer possible to put a table onto a non TableViewController? 回答1: You should implement all required methods from

问题 I have this weird situation, my app support iOS7 and above. what it does, it's enabled Remote notifications by using silent notifications. I know that iOS7 and iOS8 above has different logic to handle notification. I did this : if ([[UIApplication sharedApplication] respondsToSelector:@selector(isRegisteredForRemoteNotifications)]) { [[UIApplication sharedApplication] registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:(UIUserNotificationTypeSound |

问题 I am having a table view, in that I am having title headers, they are working well, but the sum of the title header values are getting null, I want to hide that null title header in my table view. how can I do this process. please help me in coding. - (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section { return [reverseOrder1 objectAtIndex:section]; } - (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section { return 60; }

问题 I have a tableview whose data are selected from a pickerView(3 columns).Here is the code: - (void)viewDidLoad { [super viewDidLoad]; //PickerView content and sort them for displaying Number=@[@"Trans",@"2005",@"2006",@"2007",@"2008",@"2009",@"2010",@"2011",@"2012",@"2013",@"2014",@"2015",@"2016"]; Season=@[@"Spring",@"Summer",@"Fall"]; Course=@[@"CHEM1100 General Chem I",@"CHEM2100 General Chem II",@"CHEM3511 Org Chem",@"CHEM3521 Org Chem II"]; Course =[Course sortedArrayUsingSelector:

问题 I want to get the difference between two points touched simultaneously. But i am only getting one index into scatter plot by this method, -(void)scatterPlot:(CPTScatterPlot *)plot plotSymbolWasSelectedAtRecordIndex:(NSUInteger)idx withEvent:(CPTNativeEvent *)event; How to get two index by multitouch? 回答1: The built-in interaction methods only support one point at a time. You can get the coordinates of the touch points, convert them to the coordinate space of the plot area layer, and use the

问题 (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo fetchCompletionHandler:(void (^)(UIBackgroundFetchResult result))handler method run on UI Thread or separate background thread? Because I need to process data based on push message and store in local database table using Core Data. If I do Core Data operations in this method,it will disturb the UI or not? 回答1: every application delegate method run on main thread only. try to avoid doing big

问题 I have found an undocumented method for detecting sim card availability in iphone. This method needs CoreTelephony.framework NSString * CTSIMSupportGetSIMStatus(); int CTGetSignalStrength(); NSString *status = CTSIMSupportGetSIMStatus(); NSLog(@"Sim card status %@",status); This method works well. can i use this method in my project? If i use this undocumented method, will apple reject my app? plz let me know... Thanks 回答1: You can not use undocumented method as Apple says that they can

问题 Currently it shows only black screen. So i'm unable to Reset simulator. But in iOS 6.1 app is working good. 回答1: I got this problem before 15 days. you first delete all XCode related file which is being installed. and reinstall your XCODE 5. you can refer following link for uninstalling XCODE https://discussions.apple.com/thread/4772117?start=0&tstart=0 You can refer this similar question Xcode5 Facing strange issue with testing app iOS Simulator failed to install the application 回答2: