Here is the string from NSMutableArray:
(
(
"Some String Value"
)
)
This code displays the string value that I want, but however, it displays with the brackets and quotes. How do I remove them?
Thank you in advance!!
In your case it is 2D Array:
Something like this:
NSArray *arr=[NSArray arrayWithObject:#"asdf"];
NSArray *arr2=[NSArray arrayWithObjects:arr, nil];
You need to go to 2nd level to retrive it as :
NSLog(#"=> %#",arr2[0][0]);
NSString *string=arr2[0][0];
-(void)repeatArray:(NSArray *)array1
{
static NSMutableString *InsideString; // Better to use global Varaible declared in ViewDidLoad/loadView
NSArray *array = array1; //Its your array
for (int i = 0; i< [array count]; i++) {
if ([[array objectAtIndex:i] isKindOfClass:[NSArray class]]) {
[self repeatArray:[array objectAtIndex:i]];
} else if ([[array objectAtIndex:i] isKindOfClass:[NSString class]]) {
[InsideString appendString:[NSString stringWithFormat:#"%# ", [array objectAtIndex:i]]];
}
}
}
Related
I have an NSMutableArray with items in it.
I would like to compare every item with a string.
If the string is the same then the next item of the array should be stored in another array.
NSString *string2 = [NSString stringWithFormat:#"Period:"];
// Filtern nach Periode
NSMutableArray *Eventarray =[NSMutableArray array];
for(int i=0;i<[lines count]; i++)
{
NSMutableString *string1 = [NSMutableString stringWithFormat: #"%#",[[lines objectAtIndex:i]description]];
// NSLog(#"%#",string1);
int index = [[lines objectAtIndex:i] indexOfObject:#"Period:"];
NSLog(#"%#",index);
if ([[lines objectAtIndex:i] isEqualToString:#"Period:"])
{
//strings are same
NSLog(#"ii");
NSLog(#"ii");
int e=i+1;
NSMutableString *Periode = [NSMutableString stringWithFormat: #"%#",[lines objectAtIndex:e]];
[Eventarray addObject:Periode];
}
[string1 deleteCharactersInRange:NSMakeRange([string1 length]-1, 1)];
}
for(int i=0;i<[Eventarray count]; i++)
{
NSLog(#"Eventarray: %#", [Eventarray objectAtIndex:i]);
}
The array looks like this:
2013-08-12 13:31:35.375 xxxx[3809:207] PublishedRoster
2013-08-12 13:31:35.376 xxxx[3809:207] Period:
2013-08-12 13:31:35.377 xxxx[3809:207] 25Jul2013-08Sep2013
I tried everything but I don't know whats wrong. What am I missing?
Try using NSRange
If you want to search for a substring
NSString *homebrew = #"Rajneesh071";
NSRange range = [homebrew rangeOfString:#"Raj"];
// Did we find the string "Raj" ?
if (range.length > 0)
NSLog(#"Range is: %#", NSStringFromRange(range));
In your code you can do it like.
for(int i=0;i<[lines count]; i++)
{
NSRange stringRange = [[lines objectAtIndex:i] rangeOfString:#"Period:" options:NSCaseInsensitiveSearch];
if(stringRange.location != NSNotFound)
{
[Eventarray addObject:Periode];
}
}
I'm trying to re-arrange words into alphabetical order. For example, tomato would become amoott, or stack would become ackst.
I've found some methods to do this in C with char arrays, but I'm having issues getting that to work within the confines of the NSString object.
Is there an easier way to do it within the NSString object itself?
You could store each of the string's characters into an NSArray of NSNumber objects and then sort that. Seems a bit expensive, so I would perhaps just use qsort() instead.
Here it's provided as an Objective-C category (untested):
NSString+SortExtension.h:
#import <Foundation/Foundation.h>
#interface NSString (SortExtension)
- (NSString *)sorted;
#end
NSString+SortExtension.m:
#import "NSString+SortExtension.h"
#implementation NSString (SortExtension)
- (NSString *)sorted
{
// init
NSUInteger length = [self length];
unichar *chars = (unichar *)malloc(sizeof(unichar) * length);
// extract
[self getCharacters:chars range:NSMakeRange(0, length)];
// sort (for western alphabets only)
qsort_b(chars, length, sizeof(unichar), ^(const void *l, const void *r) {
unichar left = *(unichar *)l;
unichar right = *(unichar *)r;
return (int)(left - right);
});
// recreate
NSString *sorted = [NSString stringWithCharacters:chars length:length];
// clean-up
free(chars);
return sorted;
}
#end
I think separate the string to an array of string(each string in the array contains only one char from the original string). Then sort the array will be OK. This is not efficient but is enough when the string is not very long. I've tested the code.
NSString *str = #"stack";
NSMutableArray *charArray = [NSMutableArray arrayWithCapacity:str.length];
for (int i=0; i<str.length; ++i) {
NSString *charStr = [str substringWithRange:NSMakeRange(i, 1)];
[charArray addObject:charStr];
}
NSString *sortedStr = [[charArray sortedArrayUsingSelector:#selector(localizedCaseInsensitiveCompare:)] componentsJoinedByString:#""];
// --------- Function To Make an Array from String
NSArray *makeArrayFromString(NSString *my_string) {
NSMutableArray *array = [[NSMutableArray alloc] init];
for (int i = 0; i < my_string.length; i ++) {
[array addObject:[NSString stringWithFormat:#"%c", [my_string characterAtIndex:i]]];
}
return array;
}
// --------- Function To Sort Array
NSArray *sortArrayAlphabetically(NSArray *my_array) {
my_array= [my_array sortedArrayUsingSelector:#selector(localizedCaseInsensitiveCompare:)];
return my_array;
}
// --------- Function Combine Array To Single String
NSString *combineArrayIntoString(NSArray *my_array) {
NSString * combinedString = [[my_array valueForKey:#"description"] componentsJoinedByString:#""];
return combinedString;
}
// Now you can call the functions as in below where string_to_arrange is your string
NSArray *blowUpArray;
blowUpArray = makeArrayFromString(string_to_arrange);
blowUpArray = sortArrayAlphabetically(blowUpArray);
NSString *arrayToString= combineArrayIntoString(blowUpArray);
NSLog(#"arranged string = %#",arrayToString);
Just another example using NSMutableString and sortUsingComparator:
NSMutableString *mutableString = [[NSMutableString alloc] initWithString:#"tomat"];
[mutableString appendString:#"o"];
NSLog(#"Orignal string: %#", mutableString);
NSMutableArray *charArray = [NSMutableArray array];
for (int i = 0; i < mutableString.length; ++i) {
[charArray addObject:[NSNumber numberWithChar:[mutableString characterAtIndex:i]]];
}
[charArray sortUsingComparator:^NSComparisonResult(id _Nonnull obj1, id _Nonnull obj2) {
if ([obj1 charValue] < [obj2 charValue]) return NSOrderedAscending;
return NSOrderedDescending;
}];
[mutableString setString:#""];
for (int i = 0; i < charArray.count; ++i) {
[mutableString appendFormat:#"%c", [charArray[i] charValue]];
}
NSLog(#"Sorted string: %#", mutableString);
Output:
Orignal string: tomato
Sorted string: amoott
NSMutableArray *tmpMutArr = [NSMutableArray arrayWithArray:allObjectsArray];
NSLog(#"The content of array is%#",tmpMutArr);
int index;
for (int i=0;i<[tmpMutArr count];i++)
{
if([[tmpMutArr objectAtIndex:i] isKindOfClass:[NSDictionary class]])
{
NSMutableDictionary *tempDict = [tmpMutArr objectAtIndex:i];
if([[tempDict valueForKey:#"Name"] isEqualToString:[NSString stringWithFormat:#"%#", nameString]])
{
index = i;
}
}
}
[tmpMutArr replaceObjectAtIndex:index withObject:[NSDictionary dictionaryWithDictionary:mutDict]];
This code is not replacing the matching object in tmpMutArr as I want it to, but replaces all objects in tmpMutArr instead. How to replace only the index I want?
I know that tmpMutArr containing all objects before the replacement, so I just need to specify the index correctly I think. How to do so?
NSMutableArray *tmpMutArr = [NSMutableArray arrayWithArray:allObjectsArray];
NSLog(#"The content of array is%#",tmpMutArr);
int index;
for (int i=0;i<[tmpMutArr count];i++)
{
if([[tmpMutArr objectAtIndex:i] isKindOfClass:[NSDictionary class]])
{
NSMutableDictionary *tempDict = [tmpMutArr objectAtIndex:i];
if([[tempDict valueForKey:#"Name"] isEqualToString:nameString])
{
index = i;
break; // << added break
}
}
}
[tmpMutArr replaceObjectAtIndex:index withObject:[NSDictionary dictionaryWithDictionary:mutDict]];
maybe, you should try to this version... you have not specified which index is needed, I suppose the first one.
for (int i=0;i<[tmpMutArr count];i++) {
if([[tmpMutArr objectAtIndex:i] isKindOfClass:[NSDictionary class]]) {
NSMutableDictionary *tempDict = [tmpMutArr objectAtIndex:i];
if([[tempDict valueForKey:#"Name"] isEqualToString:[NSString stringWithFormat:#"%#", nameString]]) {
index = i;
break; // when you find the first one, you should go out from the iteration
}
}
}
I have a NSMutableArray where i want to replace the sign | into a ; how can i do that?
NSMutableArray *paths = [dic valueForKey:#"PATH"];
NSLog(#"pathArr ", paths)
pathArr (
(
"29858,39812;29858,39812;29925,39804;29936,39803;29949,39802;29961,39801;30146,39782;30173,39779;30220,39774;30222,39774|30215,39775;30173,39779;30146,39782;29961,39801;29949,39802;29936,39803;29925,39804;29858,39812;29858,39812;29856,39812;29800,39819;29668,39843;29650,39847;29613,39855;29613,39855;29613,39856;29605,39857;29603,39867;29603,39867;29599,39892;29596,39909;29587,39957;29571,40018;29563,40038;29560,40043"
)
)
Update
This is where i got my path from
NSArray *BusRoute = alightDesc;
int i;
int count = [BusRoute count];
for (i = 0; i < count; i++)
{
NSLog (#"BusRoute = %#", [BusRoute objectAtIndex: i]);
NSDictionary *dic = [BusRoute objectAtIndex: i];
NSMutableArray *paths = [dic valueForKey:#"PATH"];
}
Provide that your object in the array path is string, you can do this
NSMutableArray *path2=[[NSMutableArray alloc]initWithArray:nil];
for (NSObject *obect in path) {
for (NSString *string in (NSArray*)obect) {
[path2 addObject:[string stringByReplacingOccurrencesOfString:#"|" withString:#","]];
}
}
NSLog(#"pathArr %# ", path2);
your array paths contains an another array which has string as object.
Hope this helps
//Copy the Array into a String
NSString *str = [paths componentsJoinedByString: #""];
//then replace the "|"
str = [str stringByReplacingOccurrencesOfString:#"|" withString:#";"];
i did this to replace a string in a .plist so it might work for you
array1 = [NSMutableArray arrayWithContentsOfFile:Path1];
NSString *item = [#"dfdfDF"];
[array1 replaceObjectAtIndex:1 withObject:item];
[array1 writeToFile:Path1 atomically:YES];
NSLog(#"count: %#", [array1 objectAtIndex:1]);
you may cast or convert paths to NSString and then do:
paths = (NSString *) [paths stringByReplacingOccurrencesOfString:#"|" withString:#";"];
if this does't work, create new NSString instance that containing pathArr text, invoke replaceOccurrences method and do invert conversion
NSMutableString *tempStr = [[NSMutableString alloc] init];
for (int i = 0; i < [paths count]; i++)
{
[tempStr appendString:[path objectAtIndex:i]];
}
then use this method for tempStr. And then try:
NSArray *newPaths = [tempStr componentsSeparatedByString:#";"];
may be last method not completely correct, so try experiment with it.
Uh, why don't you just go:
NSString *cleanedString = [[[dic valueForKey:#"PATH"] objectAtIndex:0] stringByReplacingOccurrencesOfString:#";" withString:#"|"];
If there are more than one nested array, you can go
for(int i = 0; i < [[dic valueForKey:#"PATH"] count]; i++)
{
NSString *cleanedString = [[[dic valueForKey:#"PATH"] objectAtIndex:i] stringByReplacingOccurrencesOfString:#";" withString:#"|"];
// do something with cleanedString
}
I've been looking to see if I can find a function like indexOf.
I have an array.
self.data = [[NSArray alloc] initWithObjects:#"apple", #"lemon", #"pear", nil];
Looking for a function to return which would look for lemon and return 1 ?
how about indexOfObject:?
NSUInteger index = [self.data indexOfObject:#"lemon"];
Try this method.
-(int)indexOfString:(NSString *)string inArray:(NSArray *)array {
for(int i=0; i<[array count]; i++) {
if ([[array objectAtIndex:i] class] == [NSString class]) {
if ([[array objectAtIndex:i] isEqualToString:string]) {
return i;
}
}
}
}
EDIT: The other answer using -indexOfObject: is better.