小编d.l*_*dev的帖子

我有很多代码片段,用AES128加密数据(如果你提供你的工作实现,我将非常感谢)例如这一个:

- (NSData*)AES128EncryptWithKey:(NSString*)key {
    // 'key' should be 16 bytes for AES128, will be null-padded otherwise
    char keyPtr[kCCKeySizeAES128 + 1]; // room for terminator (unused)
    bzero(keyPtr, sizeof(keyPtr)); // fill with zeroes (for padding)

    // fetch key data
    [key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding];

    NSUInteger dataLength = [self length];

    //See the doc: For block ciphers, the output size will always be less than or
    //equal to the input size plus the size of one block.
    //That's why we need to add the size …

我正在使用自定义图像的正常/选定状态UISegmentedControl.当我点击已经选择的片段时,它的外观会更改为突出显示.

我试图为高亮显示的+选定状态设置图像,但它被忽略:

   [segmentedControl setBackgroundImage:appearance.selectedBackground
                                forState:UIControlStateSelected | UIControlStateHighlighted
                              barMetrics:UIBarMetricsDefault];

是否有任何方法(包括非破坏的私有)在选定的状态再次被选中时将其选中？