How can I sort an NSMutableArray alphabetically?

问题

I want to sort an NSMutableArray alphabetically.

回答1:

You can do this to sort NSMutableArray:

[yourArray sortUsingSelector:@selector(localizedCaseInsensitiveCompare:)];

回答2:

The other answers provided here mention using @selector(localizedCaseInsensitiveCompare:)
This works great for an array of NSString, however the OP commented that the array contains objects and that sorting should be done according to object.name property.
In this case you should do this:

NSSortDescriptor *sort = [NSSortDescriptor sortDescriptorWithKey:@"name" ascending:YES];
[yourArray sortUsingDescriptors:[NSArray arrayWithObject:sort]];

Your objects will be sorted according to the name property of those objects.

回答3:

NSSortDescriptor *valueDescriptor = [[NSSortDescriptor alloc] initWithKey:@"name" ascending:YES]; // Describe the Key value using which you want to sort. 
NSArray * descriptors = [NSArray arrayWithObject:valueDescriptor]; // Add the value of the descriptor to array.
sortedArrayWithName = [yourDataArray sortedArrayUsingDescriptors:descriptors]; // Now Sort the Array using descriptor.

Here you will get the sorted array list.

回答4:

Use the NSSortDescriptor class and rest you will get every thing here

回答5:

NSSortDescriptor * sortDescriptor;
sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"Name_your_key_value" ascending:YES];
NSArray * sortDescriptors = [NSArray arrayWithObject:sortDescriptor]; 
NSArray * sortedArray;
sortedArray = [Your_array sortedArrayUsingDescriptors:sortDescriptors];

回答6:

Maybe this can help you:

[myNSMutableArray sortUsingDescriptors:@[[NSSortDescriptor sortDescriptorWithKey:@"firstName" ascending:YES],[NSSortDescriptor sortDescriptorWithKey:@"lastName" ascending:YES]]];

All is acording to NSSortDescriptor...

来源：https://stackoverflow.com/questions/4723697/how-can-i-sort-an-nsmutablearray-alphabetically