标签: uiactionsheet

我需要在Tab Bar控制器上方显示操作表.我的意思是,即使操作表视图处于可见模式,我也能看到Tab Bar控制器.

因此,请建议如何从Tab Bar控制器上方查看.可能吗.

其次,如何更改动作表的背景颜色和取消按钮背景颜色.

请帮我

谢谢,Madan Mohan.

我有一个名为-showMoreTools的方法:它是:

- (IBAction) showMoreTools:(id)sender {
    UIActionSheet *popupQuery = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:nil destructiveButtonTitle:@"Close" otherButtonTitles:@"Add Bookmark", @"Add to Home Screen", @"Print", @"Share", nil];
    popupQuery.actionSheetStyle = UIActionSheetStyleDefault;
    popupQuery.dismiss
    [popupQuery showFromBarButtonItem:moreTools animated:YES];
    [popupQuery release];
}

有可能以某种方式实现另一个时间UIBarButtonItem来关闭UIActionSheet？

非常感谢你 - 我是iOS编程的新手!

我在整个应用程序中使用绿色作为"动作颜色",我希望我的UIActionSheets中的选项也是绿色的,以保持一致性.如何将UIActionSheet选项的颜色从蓝色更改为绿色？

我创建了一个操作表,但问题是没有调用委托方法

 myActionSheet = UIActionSheet()
        myActionSheet.addButtonWithTitle("Add event")
        myActionSheet.addButtonWithTitle("close")
        myActionSheet.cancelButtonIndex = 1
        myActionSheet.showInView(self.view)

/// UIActionSheetDelegate

func actionSheet(myActionSheet: UIActionSheet!, clickedButtonAtIndex buttonIndex: Int){
        if(myActionSheet.tag == 1){

            if (buttonIndex == 0){
                println("the index is 0")
            }
        }
}

我使用了另一种适用于iOS 8的方法但不适用于iOS 7:

var ActionSheet =  UIAlertController(title: "Add View", message: "", preferredStyle: UIAlertControllerStyle.ActionSheet)

ActionSheet.addAction(UIAlertAction(title: "Add event", style: UIAlertActionStyle.Default, handler:nil))

self.presentViewController(ActionSheet, animated: true, completion: nil)

有什么想法解决这个问题吗？

我将我所有的UIActionSheet和UIAlertView带UIAlertController。

我的问题是当我尝试呈现UIAlertControllerActionSheet样式时。这是我的代码：

UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"Title"
                                                               message:@"My message"
                                                        preferredStyle:UIAlertControllerStyleActionSheet];

UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:@"Cancel" style:UIAlertActionStyleCancel handler:nil];
[alert addAction:cancelAction];

UIAlertAction *OKAction = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:nil];
[alert addAction:OKAction];

UIAlertAction *destroyAction = [UIAlertAction actionWithTitle:@"Destroy" style:UIAlertActionStyleDestructive handler:nil];
[alert addAction:destroyAction];

UIPopoverPresentationController *popPresenter = [alert popoverPresentationController];
popPresenter.sourceView = self.view;
popPresenter.sourceRect = self.view.bounds;

[self presentViewController:alert animated:YES completion:nil];

这是错误：

Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you …

iOS SDK中UIActionSheet的Android等价是什么？我正在研究React-Native项目,并且需要尽可能保持本机控件的使用.我没有遇到使用相应的plartform'动作表'的npm包或其他包.他们似乎都使用iOS中的原生动作表,以及Android的iOS动作表的javascript模拟(这使得它在Android上非原生).如果我能知道android显示哪个iOS显示动作表,那么我可以使用适用于Android的RN Android组件和iOS的动作表.我希望这是一个明确的问题.

字体非常小,有些人难以阅读,所以我想让它更接近下面按钮上使用的字体大小.

我的程序编译成功,但是当我按下按钮时,它会崩溃.这是viewController.swift:

import UIKit

class ViewController: UIViewController, UIActionSheetDelegate{

@IBOutlet var button:UIButton

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}


@IBAction func buttonPressed(AnyObject) {
    let choice = UIActionSheet(title: "Select source", delegate: self, cancelButtonTitle: "Cancel", destructiveButtonTitle: nil, otherButtonTitles:"camera", "libary")
    choice.showInView(self.view)
}
}

错误出现在这一行:

let choice = UIActionSheet(title: "Select source", delegate: self, cancelButtonTitle: "Cancel", destructiveButtonTitle: nil, otherButtonTitles:"camera", "library") …

我正在将iOS应用程序表单UIWebView迁移到WKWebView.到目前为止一直这么好......在之前的应用程序中我禁用了长按并实现了自定义长按(自定义处理链接),但是我无法在WKWebView中使用它

我尝试过以下方法:

- (void)webView:(WKWebView *)wkWebView didFinishNavigation:(WKNavigation *)navigation {
    [wkWebView evaluateJavaScript:@"document.body.style.webkitTouchCallout='none';" completionHandler:nil];
}

我已检查并且该行被执行,该呼叫的响应为@"无"

但它响应:警告:尝试显示其视图不在窗口层次结构中!

有任何想法吗？ 解决方案:将 javascript注入wkwebview现在可以正常工作!

[self.wkWebView evaluateJavaScript:@"document.body.style.webkitTouchCallout='none';" completionHandler:nil];

是否可以绕过行动共享表将照片分享给Instagram？

请注意,我知道的UIDocumentInteractionController和挂钩,事实上它工作正常.通过他们的示例代码,您可以获得一个Copy to Instagram选项(如果您使用独家UTI或可以处理JPG/PNG的大量应用程序,以及Instagram,则可以选择).

这很好,但我想知道是否有办法执行"复制到Instagram"操作,而无需UIDocumentInteractionController在iOS 9+中显示菜单.

为了记录,这是完美运行的代码的简化版本.假设你有一个有效的NSURL ......

        guard let data: NSData = NSData(contentsOfURL: url), 
                  image = UIImage(data: data) else {
            return
        }

        let imageData = UIImageJPEGRepresentation(image, 100)
        let captionString = "caption"
        let writePath = (NSTemporaryDirectory() as NSString).stringByAppendingPathComponent("instagram.ig")

        guard let _ = imageData?.writeToFile(writePath, atomically: true) else {
            return
        }

        let fileURL = NSURL(fileURLWithPath: writePath)
        self.documentController = UIDocumentInteractionController(URL: fileURL)
        self.documentController.delegate = self
        self.documentController.UTI = "com.instagram.photo"
        self.documentController.annotation = NSDictionary(object: captionString, forKey: "InstagramCaption") …