NSArray转向NSMutableArray

NSArray转为NSMutableArray

NSDictionary *names;NSMutableArray *keys;  NSString *path = [[NSBundle mainBundle] pathForResource:@"sortednames" ofType:@"plist"];NSDictionary *dict = [[NSDictionary alloc] initWithContentsOfFile:path];names = dict;   NSMutableArray *array;[array setArray:[[names allKeys] sortedArrayUsingSelector:@selector(compare:)]];self.keys = array;

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參考:

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setArray:
Sets the receiver’s elements to those in another given array.

- (void)setArray:(NSArray *)otherArray

Parameters
otherArray
The array of objects with which to replace the receiver's content.