Converting NSArray to NSMutableArray [closed]

问题

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Closed 5 years ago.

As above. Would be helpful to know. Thanks!

回答1:

Here are two options:

- (NSMutableArray *)createMutableArray1:(NSArray *)array
{
    return [NSMutableArray arrayWithArray:array];
}

- (NSMutableArray *)createMutableArray2:(NSArray *)array
{
    return [[array mutableCopy] autorelease];
}

回答2:

Use -mutableCopy and make sure to balance the retain count.

NSMutableArray *mutableArray = [[immutableArray mutableCopy] autorelease];

回答3:

Try this one

NSMutableArray *array = [[NSMutableArray alloc]initWithArray:your_array_name];

来源：https://stackoverflow.com/questions/3222122/converting-nsarray-to-nsmutablearray