returning a nsdictionary from a method? [closed] - ios

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#import <Foundation/Foundation.h>
#interface GenerarPassword: NSObject
{
int password;
}
#property int password;
-(NSString*) GenerarValor:(NSString*) key;
-(NSDictionary*) getDiccionario;
-(int) password;
//-(NSArray*)generarlistaletras:(int)numero;
-(int) generarClave;
-(void) printPassword;
-(void)setPassword:(int)nuevoValor;
/*
-(int) generarNumeroAleatorio;
-(NSArray *) generarListadeUsuarios;
*/
#end
#import <Foundation/Foundation.h>
#include <stdlib.h>
#include "GenerarPassword.h"
#implementation GenerarPassword
-(NSDictionary*) getDiccionario
{
NSDictionary* m_Dict =[NSDictionary dictionaryWithObjectsAndKeys:
#"1", #"Dx",
#"2", #"Om",
#"3", #"Al",
#"4", #"Dx",
#"5", #"Je",
#"6", #"Ko",
#"7", #"Ke",
#"8", #"Fi",
#"9", #"Re",
#"10", #"Me",
#"11", #"Mu",
#"12", #"Ra",
#"13", #"Lu",
#"14", #"Lo",
#"15", #"Ka"];
return m_Dict;
}
-(int) password
{
return password;
}
-(void) setPassword:(int)nuevoValor
{
password = nuevoValor;
}
-(void) printPassword
{
NSLog(#"%d",password);
}
/*Se genera la clave numérica*/
-(int) generarClave
{
srand(time(0));
int r = rand() %(9999-1000+1) +1000;
return r;
}
//- (NSArray*) generarlistaletras:(int)numero
//{
// return nil;
//}
//Esta función Genera el valor Aleatorio
-(NSString*) GenerarValor:(NSString*) key
{
NSString *valor = [[self generarDiccionario] valueForKey: key];
return valor;
}
// return (generarDiccionario().get(key))
// lista = [0,0,0]
//lista[random.randrange(0,3)] = [GenerarValor(numero)]
//for i in range(len(lista)):
// if lista[i] == 0:
// lista[i] = [GenerarValor(random.randrange(11,20))]
// return lista
#end
int main(int argc, char const *argv[])
{
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
GenerarPassword *Generar1 = [[GenerarPassword alloc]init];
int clave = [Generar1 generarClave];
[Generar1 setPassword: clave];
NSDictionary* dict = [Generar1 getDiccionario];
NSLog(#"%a",[Generar1 GenerarValor: #"3"]);
[pool drain];
return 0;
}
I am really desperate, i just want to use the dictionary but at the compiling time i get a few warnings and when i run the program i get the following error: ": Uncaught exception NSInvalidArgumentException, reason: Can not determine type information for -[GenerarPassword (null)]
"

Answer 1

I see missing nil at the end of the object/key list:
NSDictionary* m_Dict =[NSDictionary dictionaryWithObjectsAndKeys:
#"1", #"Dx",
#"2", #"Om",
#"3", #"Al",
#"4", #"Dx",
#"5", #"Je",
#"6", #"Ko",
#"7", #"Ke",
#"8", #"Fi",
#"9", #"Re",
#"10", #"Me",
#"11", #"Mu",
#"12", #"Ra",
#"13", #"Lu",
#"14", #"Lo",
#"15", #"Ka",
nil];
return m_Dict;
}
and generarDiccionario method not declared (I don't see any method matching this name). Did you mean getDiccionario?
-(NSString*) GenerarValor:(NSString*) key
{
NSString *valor = [[self getDiccionario] valueForKey: key];
return valor;
}

Answer 2

On my environment, NSInvalidArgumentException didn't appeared. But there are some mistakes to fix.
On the method 'dictionaryWithObjectsAndKeys', you must first write the object , then the key, nil for last.
NSDictionary *m_Dict = [NSDictionary dictionaryWithObjectsAndKeys:
#"Dx", #"1",
#"Om", #"2",
#"Al", #"3",
#"Dx", #"4",
#"Je", #"5",
#"Ko", #"6",
#"Ke", #"7",
#"Fi", #"8",
#"Re", #"9",
#"Me", #"10",
#"Mu", #"11",
#"Ra", #"12",
#"Lu", #"13",
#"Lo", #"14",
#"Ka", #"15",
nil];
There is no method 'generarDiccionario'. Do you mean 'getDiccionario'?
- (NSString *)GenerarValor:(NSString *)key
{
//NSString *valor = [[self generarDiccionario] valueForKey: key]; <-Not found
NSString *valor = [[self getDiccionario] valueForKey: key]; //Do you mean this?
return valor;
}
The format identifier is '%#' for NSString*.
NSLog(#"%a",[Generar1 GenerarValor: #"3"]); //Error
NSLog(#"%#",[Generar1 GenerarValor: #"3"]);
Perhaps it will work after fix them.