解析NSString到NSArray

Question

我想解析NSArray的NSString，但無法獲得任何成功。這是我的字符串：NSString *points = @"[[51.471914582, -0.12274114637],[51.47287707533, -0.12163608379]]";

我想這個字符串映射到NSArray。

NSArray *tempArray = points; 

Answer 1

OK，代碼高爾夫（未經測試）：

NSString *points = @"[[51.471914582, -0.12274114637],[51.47287707533, -0.12163608379]]"; 
NSError *error = nil; 
NSArray *pointsArray = [NSJSONSerialization JSONObjectWithData:[points dataUsingEncoding:NSUTF8StringEncoding] 
                 options:kNilOptions 
                 error:&error]; 
for (NSArray *point in pointsArray) { 
    NSAssert([point count] == 2, @"Invalid point"); 
    // do thing with point 
    CGPoint pt = CGPointMake([point[0] floatValue], [point[1] floatValue]); 
} 

Answer 2

你能PLZ試試這個，它可以解決你的問題，

NSString *points = @"[[51.471914582, -0.12274114637],[51.47287707533, -0.12163608379]]"; 
NSArray* arrayOfStrings = [points componentsSeparatedByString:@","]; 
NSLog(@"%@",arrayOfStrings); 
NSMutableArray *copyArray = [arrayOfStrings mutableCopy]; 
NSMutableString *stringFirst = (NSMutableString *)[copyArray objectAtIndex:0]; 
NSMutableString *stringLast = (NSMutableString *)[copyArray lastObject]; 
stringFirst=[stringFirst substringFromIndex:1]; 
stringLast=[stringLast substringToIndex:stringLast.length-1]; 
[copyArray replaceObjectAtIndex:0 withObject:stringFirst]; 
[copyArray replaceObjectAtIndex:(copyArray.count-1) withObject:stringLast]; 

NSMutableArray *yourarray = [[NSMutableArray alloc] init]; 
for (int i=0; i<=(copyArray.count/2); i+=2) { 
    [yourarray addObject:[NSString stringWithFormat:@"%@,%@",[copyArray objectAtIndex:i], [copyArray objectAtIndex:i+1]]]; 
} 
NSLog(@"%@",yourarray); 

編碼愉快！

Answer 3

該字符串看起來像JSON這樣你就可以使用NSJSONSerialization

NSData * data = [points dataUsingEncoding: NSUTF8StringEncoding]; 
NSError * error = nil; 
NSArray * arrayOfPointArrays = [NSJSONSerialization JSONObjectWithData:data options:0 error:&error];