Search function in iphone? [closed] - iphone

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Closed 10 years ago.
My array is like
{
"Samsung Tab",
"Samsung Note",
"Samsung Galaxy",
"Samsung Galaxy Pro",
"Nokia Lumia",
"Nokia 5130",
"Sony Xperia"
}
Some thing like that. I have text box type GALAXY and click the button. I want to show only Samsung Galaxy , Samsung Galaxy Pro in next list view. Can anyone help me?.

Answer 1

Use predicate to filter an array like below
NSArray *arrayMobiles= [NSArray arrayWithObjects:#"Samsung Tab",#"Samsung Note", #"Samsung Galaxy", #"Samsung Galaxy Pro", #"Nokia Lumia", #"Nokia 5130",#"Nokia 5130",#"Sony Xperia", nil];
NSString *strSearchkey = #"GALAXY";
NSPredicate *containPred = [NSPredicate predicateWithFormat:#"SELF contains[cd] %#", strSearchkey];
NSArray *arrayFilter = [arrayMobiles filteredArrayUsingPredicate:containPred];
NSLog(#"%#",arrayFilter);
//output
"Samsung Galaxy",
"Samsung Galaxy Pro"

Answer 2

Take Two NSMutableArray and add one array to another array in ViewDidLoad method such like,
self.listOfTemArray = [[NSMutableArray alloc] init]; // array no - 1
self.ItemOfMainArray = [[NSMutableArray alloc] initWithObjects:#"YorArrayList", nil]; // array no - 2
[self.listOfTemArray addObjectsFromArray:self.ItemOfMainArray]; // add 2array to 1 array
And Write following delegate Method of UISearchBar
- (BOOL) textFieldDidChange:(UITextField *)textField
{
NSString *name = #"";
NSString *firstLetter = #"";
if (self.listOfTemArray.count > 0)
[self.listOfTemArray removeAllObjects];
if ([searchText length] > 0)
{
for (int i = 0; i < [self.ItemOfMainArray count] ; i = i+1)
{
name = [self.ItemOfMainArray objectAtIndex:i];
if (name.length >= searchText.length)
{
firstLetter = [name substringWithRange:NSMakeRange(0, [searchText length])];
//NSLog(#"%#",firstLetter);
if( [firstLetter caseInsensitiveCompare:searchText] == NSOrderedSame )
{
// strings are equal except for possibly case
[self.listOfTemArray addObject: [self.ItemOfMainArray objectAtIndex:i]];
NSLog(#"=========> %#",self.listOfTemArray);
}
}
}
}
else
{
[self.listOfTemArray addObjectsFromArray:self.ItemOfMainArray ];
}
[self.tblView reloadData];
}
}
Output Show in your Consol.
This code might helpful for you...thanks :)

Answer 3

This may help you
- (void)searchArrayFrom: (NSString *) matchString{
NSString *upString = [matchString uppercaseString];
if (searchArray){[searchArray release];searchArray = nil;}
searchArray = [[NSMutableArray alloc] init];
NSMutableArray *temp = [internalEvents copy];
for (int i=0;i<[temp count];i++)
{
NSString *str = [internalEvents objectAtIndex:i];
// Add everyone when there's nothing to match to
if ([matchString length] == 0)
{
[searchArray addObject:str];
continue;
}
// Add the person if the string matches
NSRange range = [[str uppercaseString] rangeOfString:upString];
if (range.location != NSNotFound) {
[searchArray addObject:str];
}
}
[temp release];
temp = nil;
[tblView reloadData];
}

Answer 4

You can use the below given function :
- (void)searchAutocompleteEntriesWithSubstring:(NSString *)substring
{
for (int i = 0; i < [yourArray count]; i++)
{
NSString *curString = [[yourArray objectAtIndex:i]lowercaseString];
NSString *searchString = [substring lowercaseString];
if ([curString rangeOfString:curStringSmall].location == NSNotFound)
{
}
else
{
//This means searched text is found in your array. you can store it in new array. Which will give you only the search criteria matched element.
}
}
}
You need to call this function on the click of your search button. Like :
-(void)searchButtonClicked
{
[self searchAutocompleteEntriesWithSubstring:txtSearch.text];
}

Answer 5

you might use the NSPrediction
NSString * SEARCH_KEYWORD = #"s";
NSMutableArray *array =
[NSMutableArray arrayWithObjects:#"Bill", #"Ben", #"Chris", #"Melissa", nil];
NSPredicate *sPredicate =
[NSPredicate predicateWithFormat:#"SELF contains[c] '%#'", SEARCH_KEYWORD];
[array filterUsingPredicate:sPredicate];
// array now contains { #"Chris", #"Melissa" }