sorting mutable array in alphabetical order
I am having a nsmutab开发者_StackOverflow中文版le array and in that nearly 50 -60 object having different names ,and can i sort this array in alphabetical order (Is it possible, How?)
For a simple sort like this, I like to use sort descriptors.
Suppose you have an mutable array of objects whose class has a name
NSString property:
NSSortDescriptor *sort=[NSSortDescriptor sortDescriptorWithKey:@"name" ascending:NO];
[myArray sortUsingDescriptors:[NSArray arrayWithObject:sort]];
Absolutely, you can use sortUsingSelector:
for this:
[myArray sortUsingSelector:@selector(compare:)];
If your array has custom objects, then you will need to implement a sorting method on those objects:
@implementation myCustomObject
...
-(NSComparisonResult) compare:(myCustomObject*) other {
return [self.name compare:other.name];
}
@end
TechZen's approach works well, but it would work better if you used NSSortDescriptor's +sortDescriptorWithKey:ascending:selector:, passing "localizedCompare:" as the selector. This way, the sorting is localized to the user's language, which can make a big difference in string comparison.
myArray=[myDict keysSortedByValueUsingSelector:@selector(compare:)];
Simply Worked for me!
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