this is what i am using:
it works if address, city, zip.....length >0.(these field may grow in future)
self.addressInfoLbl.text = [NSString stringWithFormat:#"%#\n%#\n%#\n%#\n%#", address, city, zip, state, country];(numberofline == 0)
but if any of them length =0 then i got unnecessary new line.
i am working on manually preparing(appending \n).if there are more and more fields then doing it manuallt is really hard.
Is there any other proper way.Am i doing it right.
Thanks
Try following code. It creates array of your strings, removes empty strings and then concatenates them with componentsJoinedByString :
NSArray *strings = #[address, city, zip, state, country];
strings = [strings filteredArrayUsingPredicate:[NSPredicate predicateWithFormat:#"length > 0"]];
NSString *resultString = [strings componentsJoinedByString:#"\n"];
You can join an array of objects into a string with a separator:
NSArray *props = [NSArray arrayWithObjects: address, city, state, nil];
NSString *joinedString = [props componentsJoinedByString:#"\n"];
and you will get:
"6th avenue\nAtlanta\nGeorgia"
If you don't know the amount of properties, use NSMutableArray instead of NSArray and add your properties at runtime.
Try this once,
NSMutableString *joinedString=[NSMutableString string];
NSArray *arr = [NSArray arrayWithObjects: address, city, state, nil];
for(NSString *str in arr)
{
if([str length]>0) [joinedString appendFormat:#"\n%#", str];
}
NSString *resultString=[joinedString stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
NSLog(#"%#", resultString);
Lbl.numberOfLines=0;
Lbl.lineBreakMode=NSLineBreakByCharWrapping;
try this code, it not optimal but it can resolve youy issue
NSArray *arr = [NSArray arrayWithObjects: #"address", #"", #"state", nil];
NSString *addressInfo = #"";
for (NSString *str in arr) {
if (str.length > 0) {
addressInfo = [addressInfo stringByAppendingString:[NSString stringWithFormat:#"\n%#", str]];
}
}
if (addressInfo && ![#"" isEqualToString:addressInfo])
addressInfo = [addressInfo substringFromIndex:1];
NSLog(#"address Info = %#", addressInfo);
Related
I am parsing a CSV file multiple times with for loop, here I need to store these arrays one by one dictionary. There are very less questions in stack about adding NSArray to NSDictionary. I am parsing CSV with below code but I strucked at storing in NSDictionary, The program is terminating and showing warning at assigning string to dictionary
for (i=0; i<=57; i++) {
NSString *keysString = [csvArray objectAtIndex:i];
NSArray *keysArray = [keysString componentsSeparatedByString:#","];
NSLog(#"Serail No %d %#",i,keysArray);
NSString *string = [NSString stringWithFormat:#"%d", i];
NSMutableDictionary *dict = [NSMutableDictionary dictionaryWithObjects: keysArray forKeys: string];
}
NSMutableDictionary *dict = [[NSMutableDictionary alloc]init];
for (i=0; i<=57; i++) {
NSString *keysString = [csvArray objectAtIndex:i];
NSArray *keysArray = [keysString componentsSeparatedByString:#","];
NSString *key = [NSString stringWithFormat:#"serial%d",i];
[dict setObject:keysArray forKey:key];
}
To get back data from dictionary,
NSArray *array = [dict valueForKey:#"serial24"];//to get array 24.
If I understand you correctly, you want to add the arrays to a dictionary, with the key being the string value of integer i ? What you need to do is allocate the dictionary outside your loop -
NSMutableDictionary *dict=[NSMutableDictionary new];
for (i=0; i<=57; i++) {
NSString *keysString = [csvArray objectAtIndex:i];
NSArray *keysArray = [keysString componentsSeparatedByString:#","];
NSLog(#"Serial No %d %#",i,keysArray);
NSString *string = [NSString stringWithFormat:#"%d", i];
dict[string]=keysArray;
}
I am not sure why you would want to do this, because this is basically an array. You could simply do -
NSMutableArray *outputArray=[NSMutableArray new];
for (NSString *keysString in csvArray) {
NSArray *keysArray = [keysString componentsSeparatedByString:#","];
[outputArray addObject:keysArray];
}
I have a name textfield in my app, where both the firstname maybe a middle and a lastname is written. Now I want to split these components by the first whitespace, the space between the firstname and the middlename/lastname, so I can put it into my model.
For example:
Textfield Text: John D. Sowers
String 1: John
String 2: D. Sowers.
I have tried using [[self componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]] firstObject]; & [[self componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]] lastObject];
But these only work if have a name without a middlename. Since it gets the first and the last object, and the middlename is ignored.
So how would I manage to accomplish what I want?
/*fullNameString is an NSString*/
NSRange rangeOfSpace = [fullNameString rangeOfString:#" "];
NSString *first = rangeOfSpace.location == NSNotFound ? fullNameString : [fullNameString substringToIndex:rangeOfSpace.location];
NSString *last = rangeOfSpace.location == NSNotFound ? nil :[fullNameString substringFromIndex:rangeOfSpace.location + 1];
...the conditional assignment (rangeOfSpace.location == NSNotFound ? <<default value>> : <<real first/last name>>) protects against an index out of bounds error.
Well that method is giving you an array with all the words split by white space, so then you can grab the first object as the first name and the rest of the objects as middle/last/etc
NSArray *ar = [self componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceCharacterSet]];
NSString *firstName = [ar firstObject];
NSMutableString *rest = [[NSMutableString alloc] init];
for(int i = 1; i < ar.count; i++)
{
[rest appendString:[ar objectAtIndex:i]];
[rest appendString:#" "];
}
//now first name has the first name
//rest has the rest
There might be easier way to do this, but this is one way..
Hope it helps
Daniel
I think this example below I did, solves your problem.
Remember you can assign values from the array directly, without transforming into string.
Here is an example:
NSString *textField = #"John D. Sowers";
NSArray *fullName = [textField componentsSeparatedByCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:#" "]];
if (fullName.count)
{
if (fullName.count > 2)
{
NSLog(#"Array has more than 2 objects");
NSString *name = fullName[0];
NSLog(#"Name:%#",name);
NSString *middleName = fullName[1];
NSLog(#"Middle Name:%#",middleName);
NSString *lastName = fullName[2];
NSLog(#"Last Name:%#",lastName);
}
else if(fullName.count == 2)
{
NSLog(#"Array has 2 objects");
NSString *name = fullName[0];
NSLog(#"Name:%#",name);
NSString *lastName = fullName[1];
NSLog(#"Last Name:%#",lastName);
}
else
{
NSString *name = fullName[0];
}
}
I found this to be most robust:
NSString *fullNameString = #"\n Barnaby Marmaduke \n \n Aloysius ";
NSMutableArray *nameArray = [[fullNameString componentsSeparatedByCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]] mutableCopy];
[nameArray removeObject:#""];
NSString *firstName = [nameArray firstObject];
if(nameArray.count)
{
[nameArray removeObjectAtIndex:0];
}
NSString *nameRemainder = [nameArray componentsJoinedByString:#" "];
Bob's your uncle.
I have array in this format
rows = [[NSArray alloc] initWithObjects:#"adam", #"alfred", #"ain", #"abdul", #"anastazja", #"angelica",
#"dennis" , #"deamon", #"destiny", #"dragon", #"dry", #"debug" #"drums",
#"Fredric", #"France", #"friends", #"family", #"fatish", #"funeral",
#"Mark", #"Madeline",
#"Nemesis", #"nemo", #"name",
#"Obama", #"Oprah", #"Omen", #"OMG OMG OMG", #"O-Zone", #"Ontario",
#"Zeus", #"Zebra", #"zed", nil];
But i need this in to following format
rows = #[#[#"adam", #"alfred", #"ain", #"abdul", #"anastazja", #"angelica"],
#[#"dennis" , #"deamon", #"destiny", #"dragon", #"dry", #"debug", #"drums"],
#[#"Fredric", #"France", #"friends", #"family", #"fatish", #"funeral"],
#[#"Mark", #"Madeline"],
#[#"Nemesis", #"nemo", #"name"],
#[#"Obama", #"Oprah", #"Omen", #"OMG OMG OMG", #"O-Zone", #"Ontario"],
#[#"Zeus", #"Zebra", #"zed"]];
Means that same starting character in to different dictionary
The easiest approach.
NSArray *rows = ...;
NSMutableDictionary *map = [NSMutableDictionary dictionary];
for (NSString *value in rows) {
NSString *firstLetter = [value substringToIndex:1];
if (!map[firstLetter]) {
map[firstLetter] = #[];
}
NSMutableArray *values = [map[firstLetter] mutableCopy];
[values addObject:value];
map[firstLetter] = values;
}
NSArray *finalRows = [map allValues];
Note that finalRows is not sorted.
If you want to sort your array by it's first letter, you can try this :
NSMutableArray *outputArray = [NSMutableArray new];
NSString *lastFirstLetter = nil;
for(NSString *value in rows) {
NSString *firstLetter = [[value substringToIndex:1] lowerString];
if(![lastFirstLetter isEqualToString:firstLetter]) {
lastFirstLetter = firstLetter;
[outputArray addObject:[NSMutableArray new]];
}
[[outputArray lastObject] addObject:value];
}
The idea is to iterate your input array and if the first letter of your word is different than the precedent, create a new array.
How can I remove duplicated substings from string? For ex. I have: aaa,bbb,ttt,bbb,rrr.
And in result I want to have aaa,bbb,ttt,rrr (deleted duplicated bbb). I hope for your help. Thanks.
You can do it like this:
NSMutableSet *seen = [NSMutableSet set];
NSMutableString *buf = [NSMutableString string];
for (NSString *s in [str componentsSeparatedByString:#","]) {
if (![seen containsObject:s]) {
[seen add:s];
[buf appendFormat:#",%#", s];
}
}
NSString *res = [buf length] ? [buf substringFromIndex:1] : #"";
Do it in three steps
1) NSArray *items = [theString componentsSeparatedByString:#","];
2) remove duplicate element from array
NSArray* array = [NSArray arrayWithObjects:#"test1", #"test2", #"test1", #"test2",#"test4", nil];
NSArray* filteredArray = [[NSArray alloc] init];
NSSet *set= [NSOrderedSet orderedSetWithArray:array];
filteredArray = [set allObjects];
3) Concate String from array
NSString *myString = [myArray componentsJoinedByString:#","];
You can use NSMutableDictionary;
In dictionary there are two elements;
1. Key
2. Value
Just set Keys as your array elements;
Special point is that 'Key' can't be duplicate;
Now just get array of Keys by using [dictionary allKeys];
Now, at this stage you have unique values in new array;
I have a string with the following value:
[{ProjLead=irshad, ProjName=irshad proj, ProjectId=365}]
I would like to get the value for ProjLead, ProjName and ProjectId separately. How can I do it?
You can combine some methods from NSString class.
Something like this:
NSString *string = #"[{ProjLead=irshad, ProjName=irshad proj, ProjectId=365}]";
NSString *parametersString = [string substringWithRange:NSMakeRange(2, string.length - 4)];
NSArray *parameters = [parametersString componentsSeparatedByString: #", "];
NSMutableArray *values = [NSMutableArray array];
for (NSString *parameter in parameters) {
[values addObject:[[parameter componentsSeparatedByString:#"="] objectAtIndex:1]];
}
values array is what you want.