小编Arv*_*ind的帖子

我需要一个带有取消按钮的完全透明的搜索栏.我尝试了很多解决方案但是我找不到更好的解决方案.当我尝试删除背景颜色时,它会显示范围栏.任何人都可以给我一些带有can按钮的完全透明的搜索栏的源代码.这里的

addSearchbar.backgroundColor = [UIColor colorWithRed:1.0 green:1.0 blue:1.0 alpha:0.5];
UITextField *sbTextField = (UITextField *)[self.addSearchbar.subviews lastObject];

for (UIView *subview in addSearchbar.subviews)
{
    NSLog(@"%@",subview);
    if ([subview isKindOfClass:[UITextField class]])
    {
        sbTextField = (UITextField *)subview;
        UIImage *image = [UIImage imageNamed: @"06_magnifying_glass.png"];
        UIImageView *iView = [[UIImageView alloc] initWithImage:image];
        iView.frame = CGRectMake(0, 0, 24, 24);
        sbTextField.leftView.frame = CGRectMake(0, 0, 24, 24);
        sbTextField.leftView = iView;
        [sbTextField.rightView removeFromSuperview];
        CGFloat myWidth = 24.0f;
        CGFloat myHeight = 24.0f;
        UIButton *myButton = [[UIButton alloc] initWithFrame:CGRectMake(0.0f, 0.0f, myWidth, myHeight)];
        [myButton setImage:[UIImage imageNamed:@"clear.png"] forState:UIControlStateNormal]; …

我遇到了一个奇怪的问题，我希望这是苹果的错误。让我知道这是否是 Apple 的错误。

脚步

• 打开拨号器
• 拨打号码并使用 + 号作为 number1 添加到联系人
• 使用联系人应用程序打开联系人并将 number2 添加到联系人

现在下面的代码返回

    for (CNLabeledValue *labelObj in contact.phoneNumbers) {
    phone = [labelObj.value stringValue];
    CNLabeledValue *cnPhoneLabel = [CNLabeledValue labeledValueWithLabel:labelObj.label value:labelObj.value];
    NSString *phoneLabelString = [[CNLabeledValue localizedStringForLabel:cnPhoneLabel.label] capitalizedString];
    }

1号

    "<CNLabeledValue: 0x148306800: 
identifier=08C1A708-F5A2-4A65-AB08-024B3FCF79C4, label=(null), 
value=<CNPhoneNumber: 0x148297aa0: countryCode=in, digits=2586352952356>>"

2号

"<CNLabeledValue: 0x148296a60:
identifier=7D9ABC9E-D5AF-421D-BFF6-7902BC99E80F, label=_$!<Mobile>!$_,
value=<CNPhoneNumber: 0x148296aa0: countryCode=in, digits=7392>>"

number1 标签返回标签为 null

NLabeledValue：0x148306800：标识符= 08C1A708-F5A2-4A65-AB08-024B3FCF79C4，标签=（空）

我已成功将图像转换为灰度,我想将灰度图像还原为RGB图像.请帮忙.提前致谢.

-(UIImage *) toGrayscale
    {

    const int RED = 1;
    const int GREEN = 2;
    const int BLUE = 3;

        Create image rectangle with current image width/height
        CGRect imageRect = CGRectMake(0, 0, self.size.width * self.scale, self.size.height * self.scale);

        int width = imageRect.size.width;
        int height = imageRect.size.height;

        // the pixels will be painted to this array
        uint32_t *pixels = (uint32_t *) malloc(width * height * sizeof(uint32_t));

        // clear the pixels so any transparency is preserved
        memset(pixels, 0, width * height * …