以下代码适用于iOS 9.x或更低版本,出于某种原因,如果iOS 10
,则无效 if([MFMessageComposeViewController canSendText])
{
controller.body = message;
NSString *tel = pContact.tlc;
controller.recipients = pContact.tlc?@[tel]:nil;
controller.messageComposeDelegate = self;
controller.navigationBar.tintColor = [UIColor whiteColor];
controller.navigationBar.barTintColor = [UIColor blueColor];
[self presentViewController:controller animated:YES completion:nil];
}
是破了还是做了一些改变。不知道这里遗漏了什么。我在黑暗中(漆黑)
编辑: 我试图在一个新的空单视图项目上使用一些测试代码,我遇到了同样的问题。
@IBAction func SMS(_ sender: AnyObject) {
let composeVC = MFMessageComposeViewController()
composeVC.messageComposeDelegate = self
// Configure the fields of the interface.
composeVC.recipients = ["5555555555"]
composeVC.body = "Hello from California!"
composeVC.navigationBar.tintColor = UIColor.green
composeVC.navigationBar.barTintColor = UIColor.purple
// Present the view controller modally.
self.present(composeVC, animated: true, completion: nil)
}
编辑: UINavigationBar外观可以在测试应用程序中为背景或barTint设置颜色,但我仍然无法为测试应用程序设置文本颜色。我正在使用的应用程序已经使用UINavigationBar外观在应用程序中设置导航栏颜色,但这不会影响SMS的导航栏,因为它出现白色背景和白色文本。无法更改文本颜色或背景颜色使此视图无法使用。
答案 0 :(得分:11)
<强>问题强>
<强>解决方案强>
UINavigationBar.appearance()
更改导航栏颜色。backgroundColor
属性&amp;修复导航栏颜色的setBackgroundImage(_:for:)
方法。<强>代码强>
/// Method to set navigation bar color
func setNavigationBar() -> Void
{
// barTintColor will apply color for the app's navigation bar
UINavigationBar.appearance().barTintColor = UIColor.blue
// backgroundColor will apply color for some of the sharing container's app except for Messages app
UINavigationBar.appearance().backgroundColor = UIColor.blue
// backgroundImage will apply the color image for navigation bar for most of the sharing container's except for `Notes`
UINavigationBar.appearance().setBackgroundImage(UIImage(color: UIColor.blue), for:UIBarMetrics.default)
}
/// UIImage extension to create an image from specified color
extension UIImage
{
public convenience init?(color: UIColor, size: CGSize = CGSize(width: 1, height: 1)) {
let rect = CGRect(origin: .zero, size: size)
UIGraphicsBeginImageContextWithOptions(rect.size, false, 0.0)
color.setFill()
UIRectFill(rect)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
guard let cgImage = image?.cgImage else { return nil }
self.init(cgImage: cgImage)
}
}
希望它有所帮助!
答案 1 :(得分:2)
在iOS 10之前,我使用UINavigationBar
的外观代理,如下所示:
NSDictionary* titleAttribs = @{ NSForegroundColorAttributeName: [ColoursAndStyles sharedInstance].fontColourNavBarTitle,
NSFontAttributeName: [ColoursAndStyles sharedInstance].fontNavbarBoldTitle };
[[UINavigationBar appearance] setBarTintColor:[ColoursAndStyles sharedInstance].viewColourNavBarMain];
[[UINavigationBar appearance] setTintColor:[ColoursAndStyles sharedInstance].viewColourNavBarTint];
[[UINavigationBar appearance] setTitleTextAttributes:titleAttribs];
这涵盖了我对MFMessageComposeViewController
的使用,其中setTitleTextAttributes
负责标题/标题的文字颜色。
使用iOS 10,我正在使用以下方法。就在我出示MFMessageComposeViewController
之前,我更改了标题文字属性。 E.g:
- (void)sendTap:(id)s
{
// some code...
NSDictionary* newTitleAttribs = @{ NSForegroundColorAttributeName: [ColoursAndStyles sharedInstance].fontColourTitleStrip,
NSFontAttributeName: [ColoursAndStyles sharedInstance].fontNavbarBoldTitle };
[[UINavigationBar appearance] setTitleTextAttributes:newTitleAttribs];
// present the MFMessageComposeViewController...
}
然后在MFMessageComposeViewController
结束时将事情重新设置为应用程序的其余部分,例如:
- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result
{
NSDictionary* titleAttribs = @{ NSForegroundColorAttributeName: [ColoursAndStyles sharedInstance].fontColourNavBarTitle,
NSFontAttributeName: [ColoursAndStyles sharedInstance].fontNavbarBoldTitle };
[[UINavigationBar appearance] setTitleTextAttributes:titleAttribs];
// some code...
[controller dismissViewControllerAnimated:YES completion:^{
// some code...
}];
}
答案 2 :(得分:1)
至少对于标题和按钮项目,这对我有用。
[UIBarButtonItem appearanceWhenContainedIn:[UINavigationBar class], nil].tintColor = [UIColor redColor];
[UINavigationBar appearance].titleTextAttributes = @{NSForegroundColorAttributeName: [UIColor redColor]};
在此处查找更多信息:https://developer.apple.com/reference/uikit/uiappearance
希望这会有所帮助。干杯
答案 3 :(得分:0)
Objective-C解决方案:
[[UINavigationBar appearance] setBackgroundImage:[UIImage imageWithColor:[UIColor redColor]] forBarMetrics:UIBarMetricsDefault];
[[UINavigationBar appearance] setTranslucent:NO];
[[UINavigationBar appearance] setBarTintColor:[UIColor redColor]];
[[UINavigationBar appearance] setTintColor:[UIColor redColor]];
具有彩色方法的图像:
+ (UIImage *)imageWithColor:(UIColor *)paramColor
{
CGRect frame = CGRectMake(0.0f, 0.0f, 1.0f, 1.0f);
UIGraphicsBeginImageContextWithOptions(frame.size, NO, [UIScreen mainScreen].scale);
CGContextRef context = UIGraphicsGetCurrentContext();
CGContextSetInterpolationQuality(context, kCGInterpolationHigh);
CGContextSetFillColorWithColor(context, [paramColor CGColor]);
CGContextFillRect(context, frame);
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}