小编kir*_*ran的帖子

我创建的UITabBarController类有5个 ViewControllers

        controller1 = new Controller1();
        controller2 = new Controller2();
        controller3 = new Controller3();
        controller4 = new Controller4();
        controller5 = new Controller5();

        controller1.TabBarItem = new UITabBarItem ("first", UIImage.FromFile("/Images/first.png"), 0);
        controller5.TabBarItem = new UITabBarItem ("second", UIImage.FromFile("/Images/four.png"), 1);
        controller5.TabBarItem = new UITabBarItem ("third", UIImage.FromFile("/Images/four.png"), 2);
        controller5.TabBarItem = new UITabBarItem ("four", UIImage.FromFile("/Images/four.png"), 3);
        controller5.TabBarItem = new UITabBarItem ("five", UIImage.FromFile("/Images/four.png"), 4);

    var tabs = new UIViewController[] {
            controller1, controller2, controller3, controller4, controller5 
        };
        ViewControllers = tabs;

在第三个控制器中,我有一个提交按钮.

在提交按钮的动作,我想从切换标签controller3到controller5.

我该怎么做呢？

从Photolibrary中提取图像我们使用UIImagePickerViewController和UIImagePickerControllerSourceTypePhotoLibrary进入Photolibrary并获取图像,现在我的问题如何获取保存在我的photoLibary中的图像数.

允许我在我的应用程序中显示图像计数.

-(void)initialization
UIPanGestureRecognizer *panRecognizer = [[[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(move:)] autorelease];
        [panRecognizer setMinimumNumberOfTouches:1];
        [panRecognizer setMaximumNumberOfTouches:1];
        [panRecognizer setDelegate:self];
        [imageview addGestureRecognizer:panRecognizer];
 }


    - (void)move:(UIPanGestureRecognizer *)gestureRecognizer
    {
        UIView *piece = imageview;

        [self adjustAnchorPointForGestureRecognizer:gestureRecognizer];

        if ([gestureRecognizer state] == UIGestureRecognizerStateBegan || [gestureRecognizer state] == UIGestureRecognizerStateChanged) {
            CGPoint translation = [gestureRecognizer translationInView:[piece superview]];
            CGPoint translatedCenter = CGPointMake([piece center].x + translation.x, [piece center].y + translation.y);
            CGPoint center = [self centerWithBounds:translatedCenter andViewFrame:[piece frame] andBoundingFrame:[[piece superview] frame]];
            [piece setCenter:center];
            [gestureRecognizer setTranslation:CGPointZero inView:[piece superview]];
        }
    }

我将手势添加到imageview,而不是调用移动动作.

如何将手势添加到UIImageView ..

如何为LoginViewController隐藏NavigationBarHidden并显示DashBoardViewController

    window = new UIWindow (UIScreen.MainScreen.Bounds);
    navigationController = new UINavigationController();

    loginViewController = new LoginViewController ();
    navigationController.SetNavigationBarHidden (true,true);
    navigationController.AddChildViewController (loginViewController);

    if (validAuth == "AuthenticationValidUser" ){

        var dashBoardViewController = new DashBoardViewController ();
        navigationController.SetNavigationBarHidden (false,true);
        navigationController.AddChildViewController (dashBoardViewController);
    }

window.RootViewController = navigationController;
window.MakeKeyAndVisible ();
return true;

请告诉我正确的方法.

@All先谢谢.

如何获得适用于iOS的Xamarin click活动UIImageView？

public UIImageView img_UploadImage { get; set;}

public ConstructorClasss(){
img_UploadImage = new UIImageView();
img_UploadImage.Frame = new RectangleF(100,100,60,50);
img_UploadImage.Image = UIImage.FileName ("UploadLocal.png");
}

我需要使用手势点击UIimageview还是有任何click事件UIImageView？

钛有一个click事件UIImageView有actionListner.请告诉我clickXamarin 有什么事吗？

如何从定义如下的字符串中提取数字:

NSString *getNumber = @"Price138.50 Code112.250"

我需要从这个字符串中提取138.50和112.25.

我尝试在第一步设置 Jenkins，运行命令“java -jar jenkins.war”时出现以下错误

SEVERE: Running with Java class version 55.0, but 52.0 is required.Run with the --enable-future-java flag to enable such behavior. See https://jenkins.io/redirect/java-support/
java.lang.UnsupportedClassVersionError: 55.0
    at Main.main(Main.java:139)

Jenkins requires Java 8, but you are running 11.0.1+13-LTS from /Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk/Contents/Home
java.lang.UnsupportedClassVersionError: 55.0
    at Main.main(Main.java:139)

任何人都可以指导我如何解决这个问题吗？

我希望能够仅使用Apple Framework绘制图形.

这可能只使用CoreGraphics,还是我需要使用任何其他框架？

我不想使用任何第三方框架来绘制图形.

当进入前台时，ProgressIndicator（MTMProgressHub）不会出现

    hud = new MTMBProgressHUD (View);
    View.BringSubviewToFront (hud);
    View.AddSubview (hud);
    hud.Show (true);

请找到下面的图片

如图中所示，进度指示器位于按钮的背面（注册登录，请联系我们）。

    public LoginViewController(){

        hud = new MTMBProgressHUD (View);
        View.BringSubviewToFront (hud);
        View.AddSubview (hud);
        hud.Show (true);

}

无法将其推到前面。

下面是解析的 json 数据，其类型为string.

  "data": [\n    {\n      "Company": {\n        "id": "1",\n        \xe2\x80\x9cValue": \xe2\x80\x9c20\xe2\x80\x9d,\n        "companyId": "2001\xe2\x80\x9d,\n      }\n    },\n    {\n      "Company": {\n        "id": "2",\n        \xe2\x80\x9cvalue\xe2\x80\x9d: "20\xe2\x80\x9d,\n        "companyId\xe2\x80\x9d: "2002\xe2\x80\x9d,\n      }\n    },\n    {\n      "Company": {\n        "id": \xe2\x80\x9c3\xe2\x80\x9d,\n        \xe2\x80\x9cvalue\xe2\x80\x9d: \xe2\x80\x9c30\xe2\x80\x9d,\n        "companyId\xe2\x80\x9d: "2003\xe2\x80\x9d,\n      }\n    },\n ]\n\nvar parseData = Newtonsoft.Json.Linq.JObject.Parse (e.ResponseData.ToString ());\n

转换json数据字符串存储在数组中，存储公司值的Arraylist。\n这是第一次处理Json对象字符串。

团队，

我有两个故事板。一个用于身份验证，另一个用于我的应用程序仪表板。

对于身份验证故事板，初始化屏幕是 loginScreen。登录成功后，我正在加载仪表板故事板。对于仪表板故事板，初始屏幕是 MainViewController。

在这里，我在 DashboardStoryboard 中实现了注销。所以现在我想切换回我的身份验证故事板。

在这里它回到loginScreen。但我认为这不是实施的正确方法。有什么方法可以做得更好吗？

-(void)logout{
    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Authentication" bundle: nil];
    LoginViewScreenController *loginViewScreenController = [storyboard instantiateViewControllerWithIdentifier:@"LoginViewScreenController"];
    [self.navigationController pushViewController: loginViewScreenController animated:NO];
}

非常感谢您的反馈。