In short: Do not use exceptions to indicate anything but unrecoverable errors It is only appropriate to use @try/@catch to deal with unrecoverable errors. It is never appropriate to use @throw/@try/@catch to do control-flow like operations on iOS or Mac OS X. Even then, consider carefully whether you are better off using an exception to … Read more
Check your references of your outlets in your XIB, one of them is probably referencing a property (buttonOfFirstView) that does not exist anymore
You should also ensure that you have breakpoints set for all exceptions. This will cause Xcode to stop at the line where the exception is occurring. Do the following [in Xcode 4]: In the Project Navigator on the left side of Xcode, click on the breakpoint navigator (almost all the way to the right hand … Read more
Here is some code, that converts NSExceptions to Swift 2 errors. Now you can use do { try ObjC.catchException { /* calls that might throw an NSException */ } } catch { print(“An error ocurred: \(error)”) } ObjC.h: #import <Foundation/Foundation.h> @interface ObjC : NSObject + (BOOL)catchException:(void(^)(void))tryBlock error:(__autoreleasing NSError **)error; @end ObjC.m #import “ObjC.h” @implementation ObjC … Read more
Try This to select date from date picker… -(BOOL)textFieldShouldBeginEditing:(UITextField *)textField { datePicker =[[UIDatePicker alloc]initWithFrame:CGRectMake(50,150,10, 50)]; datePicker.datePickerMode=UIDatePickerModeDate; datePicker.hidden=NO; datePicker.date=[NSDate date]; [datePicker addTarget:self action:@selector(textFieldTitle:) forControlEvents:UIControlEventValueChanged]; [self.view addSubview:datePicker]; UIBarButtonItem * rightBtn=[[UIBarButtonItem alloc]initWithTitle:@”Done” style:UIBarButtonItemStyleDone target:self action:@selector(save:)]; self.navigationItem.rightBarButtonItem=rightBtn; return true; } -(void)textFieldTitle:(id)sender { NSDateFormatter *dateFormat=[[NSDateFormatter alloc]init]; dateFormat.dateStyle=NSDateFormatterMediumStyle; [dateFormat setDateFormat:@”MM/dd/yyyy”]; NSString *str=[NSString stringWithFormat:@”%@”,[dateFormat stringFromDate:datePicker.date]]; self.txtField.text=str; } -(void)save:(id)sender { self.navigationItem.rightBarButtonItem=nil; [datePicker removeFromSuperview]; … Read more