我正在尝试将我从 NSURL 获得的数组添加到使用 for 循环的数组中:
(int i = 0; i < 10; i++)
使其成为二维数组。不断收到 NSRangeException 错误。它只能在 index[0] 处插入对象或添加对象,当 'i' 增加到 1 时,它会引发错误。它只能意味着它不是添加而是覆盖,所以当它第二次覆盖并且 i = 1 时,它会抛出错误。如何添加更多而不是覆盖初始化的二维数组?
- (void)qBlock{
for (int i = 0; i < 10; i++) {
NSURL *url = [NSURL URLWithString:@"http://somefiles.php"];
NSError *error;
NSStringEncoding encoding;
NSString *response = [[NSString alloc] initWithContentsOfURL:url
usedEncoding:&encoding
error:&error];
if (response) {
const char *convert = [response UTF8String];
NSString *responseString = [NSString stringWithUTF8String:convert];
NSMutableArray *sample = [responseString JSONValue];
block = [[NSMutableArray alloc]init];
[block insertObject:sample atIndex:i];
}
else {
UIAlertView *alert1 = [[UIAlertView alloc]initWithTitle:@"ALERT" message:@"Internet Connection cannot be established." delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alert1 show];
}
}
//Calling 10 blocks of codes
for (id obj in block) {
NSLog(@"%@",obj);
}