Help me to sort-out my problem, I've been stuck over here.
I've also seen many questions similar to this, with same problem. But none-of them solved my problem. That's why I need to ask similar question on Stack.
I've NSMutableArray ie NSMutableArray *arrNames = [[NSMutableArray alloc] initWithObjects:@"ABC", @"DEF", @"GHI", nil];
Now I want to delete GHI
from this array. So I've tried this way, but it doesn't work-out. Please help me.
NSUserDefaults *userDefaults = [NSUserDefaults standardUserDefaults];
NSMutableArray *arrDeletedGTINS = [[NSMutableArray alloc] init];
arrDeletedGTINS = [userDefaults objectForKey:@"deletedArr"];
NSLog(@"%@", arrDeletedGTINS); will give this output ->
( 00000000000017 )
if ([arrDeletedGTINS containsObject:@"00000000000017"]) {
[arrDeletedGTINS removeObject:@"00000000000017"];
}
[userDefaults setObject:arrDeletedGTINS forKey:@"deletedArr"];
[userDefaults synchronize];
If I'm going some-where wrong then please correct me. I'm learning iOS. Please help me.
This line is your issue :
arrDeletedGTINS = [userDefaults objectForKey:@"deletedArr"];
NSUserDefault saves array as NSArray, not as NSMutableArray.
So replace the above line by :
arrDeletedGTINS = [[userDefaults objectForKey:@"deletedArr"] mutableCopy];
Try this.
You can use containsObject method in an NSMutableArray
if ([arrNames containsObject:@"GHI"]) {
[arrNames removeObject:@"GHI"];
}
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