如何在Objective-c iOS中拆分字节数组并以小包形式发送

NSString *dataString = @"要发送的数据";
NSData *data = [dataString dataUsingEncoding:NSUTF8StringEncoding];
const uint8_t *bytes = (const uint8_t *)data.bytes;
NSUInteger length = data.length;

NSUInteger packetSize = 1024;

NSUInteger totalPackets = (length + packetSize - 1) / packetSize;

for (NSUInteger packetIndex = 0; packetIndex < totalPackets; packetIndex++) {
    // 计算当前小包的起始位置和大小
    NSUInteger offset = packetIndex * packetSize;
    NSUInteger size = MIN(packetSize, length - offset);
    
    // 创建当前小包的数据
    NSData *packetData = [NSData dataWithBytes:bytes + offset length:size];
    
    // 发送当前小包的数据
    [self sendPacket:packetData];
}