Ios 在除导航栏-Swift之外的整个屏幕上添加加载覆盖

我想显示一个加载屏幕，直到从服务器获取数据为止。为此，我使用此代码创建一个带有活动指示器的覆盖

但这只有在我通过调用

LoadingOverlay.shared.showOverlay(self.navigationController?.view)

即使是我的导航栏也会被覆盖，用户也无法返回，以防页面加载时间过长。如果我尝试使用下面的方法，什么都不会发生

LoadingOverlay.shared.showOverlay(self.view)

任何提示或解决方案都将不胜感激

编辑-我正在尝试创建如下内容，在加载覆盖后，导航栏和选项卡栏仍然会出现，用户可以对其进行任何操作

但是在使用我上面提供的链接代码，以及@Cute Angel的代码时，我得到的结果如下所示，如果我使用

self.view

如何在我在

ViewController

的基本视图中添加的所有元素之上获得此覆盖，并使导航栏和选项卡栏不具有覆盖

我想要达到的目标如下

尝试以下代码：

声明宏

#define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
#define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)

在

.h

@property (strong, nonatomic) UIActivityIndicatorView *indicator;
@property (strong, nonatomic) UIView *processView;

#pragma mark - Process view

- (void)showProcess:(UIView *)view;
- (void)hideProcess;

在

.m

@synthesize indicator, processView;

#pragma mark - Process view

- (void)showProcess:(UIView *)view
{
    if (self.processView == nil)
    {
        self.processView = [[UIView alloc] initWithFrame:view.frame]; // If you want to cover whole screen then apply [[UIScreen mainScreen] bounds]] as a frame
        self.processView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.4];
        //self.processView.userInteractionEnabled = FALSE;

        UIView *viewInner = [[UIView alloc] init];
        if (IS_IPHONE)
            viewInner.frame = CGRectMake(0, 0, 90, 90);
        else
            viewInner.frame = CGRectMake(0, 0, 150, 150);
        viewInner.center = self.processView.center;
        viewInner.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.7];
        [viewInner.layer setCornerRadius:10.0f];
        [viewInner.layer setMasksToBounds:YES];

        self.indicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:IS_IPHONE?UIActivityIndicatorViewStyleWhite:UIActivityIndicatorViewStyleWhiteLarge];
        self.indicator.frame = CGRectMake(0, IS_IPHONE?-15:-30, viewInner.frame.size.width, viewInner.frame.size.height);
        self.indicator.hidesWhenStopped = YES;
        [viewInner addSubview:self.indicator];

        UILabel *lblLoading = [[UILabel alloc] initWithFrame:CGRectMake(5, viewInner.frame.size.height-(IS_IPHONE?45:70), viewInner.frame.size.width-10, IS_IPHONE?40:70)];
        lblLoading.backgroundColor = [UIColor clearColor];
        lblLoading.textColor = [UIColor whiteColor];
        lblLoading.textAlignment = NSTextAlignmentCenter;
        lblLoading.adjustsFontSizeToFitWidth = TRUE;
        lblLoading.font = [UIFont systemFontOfSize:IS_IPHONE?15.0f:24.0f];
        lblLoading.text = @"Loading...";
        [viewInner addSubview:lblLoading];

        [self.processView addSubview:viewInner];
    }
    [view addSubview:self.processView]; // If you want to cover whole screen then add it to [self.window addSubview:self.processView]
    [self performSelector:@selector(createProcess) withObject:nil afterDelay:0.1];
}

- (void)createProcess
{
    [self.indicator startAnimating];
}

- (void)hideProcess
{
    [self.indicator performSelector:@selector(stopAnimating) withObject:nil afterDelay:0.5];
    [self.processView performSelector:@selector(removeFromSuperview) withObject:nil afterDelay:0.5];
}

当你想显示和隐藏的时候

YourClassName * classObject = [[YourClassName alloc] init];
[classObject showProcess:self.view];

[classObject hideProcess];

对于swift： 1.声明变量

var processView: UIView?
var indicator: UIActivityIndicatorView?

二,。定义方法

// MARK: - Process view

func showProcess(view:UIView) {

    UIScreen.mainScreen().bounds
    self.processView = UIView(frame: view.frame) // // If you want to cover whole screen then apply UIScreen.mainScreen().bounds as frame
    self.processView?.backgroundColor = UIColor.blackColor().colorWithAlphaComponent(0.4)

    let viewInner = UIView()
    let lblLoading = UILabel()

    if UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiom.Phone {

        viewInner.frame = CGRectMake(0, 0, 90, 90)
        self.indicator = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.White)
        self.indicator!.frame = CGRectMake(0, -15, viewInner.frame.size.width, viewInner.frame.size.height)
        lblLoading.frame = CGRectMake(5, viewInner.frame.size.height-45, viewInner.frame.size.width-10, 40)
        lblLoading.font = UIFont.systemFontOfSize(15.0)

    }
    else {

        viewInner.frame = CGRectMake(0, 0, 150, 150)
        self.indicator = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.White)
        self.indicator!.frame = CGRectMake(0, -30, viewInner.frame.size.width, viewInner.frame.size.height)
        lblLoading.frame = CGRectMake(5, viewInner.frame.size.height-70, viewInner.frame.size.width-10, 70)
        lblLoading.font = UIFont.systemFontOfSize(24.0)
    }

    viewInner.center = self.processView!.center
    viewInner.backgroundColor = UIColor.blackColor().colorWithAlphaComponent(0.7)
    viewInner.layer.cornerRadius = 10.0
    viewInner.layer.masksToBounds = true

    self.indicator!.hidesWhenStopped = true
    viewInner.addSubview(self.indicator!)

    lblLoading.backgroundColor = UIColor.clearColor()
    lblLoading.textColor = UIColor.whiteColor()
    lblLoading.textAlignment = NSTextAlignment.Center
    lblLoading.adjustsFontSizeToFitWidth = true
    lblLoading.text = "Loading..."
    viewInner.addSubview(lblLoading)

    self.processView!.addSubview(viewInner)

    view.addSubview(self.processView!) // If you want to cover whole screen then add it to self.window.addSubview(self.processView)
    self.performSelector("createProcess", withObject: nil, afterDelay: 0.1)
}

func createProcess() {

    self.indicator?.startAnimating()
}

func hideProcess() {

    self.indicator?.performSelector("stopAnimating", withObject: nil, afterDelay: 0.5)
    self.processView?.performSelector("removeFromSuperview", withObject: nil, afterDelay: 0.5)
}

需要的时候打电话

var classObject = YourClass()
classObject.showProcess(self.view)

classObject.hideProcess()

请尝试以下代码：

声明宏

#define IS_IPAD (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
#define IS_IPHONE (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPhone)

在

.h

@property (strong, nonatomic) UIActivityIndicatorView *indicator;
@property (strong, nonatomic) UIView *processView;

#pragma mark - Process view

- (void)showProcess:(UIView *)view;
- (void)hideProcess;

在

.m

@synthesize indicator, processView;

#pragma mark - Process view

- (void)showProcess:(UIView *)view
{
    if (self.processView == nil)
    {
        self.processView = [[UIView alloc] initWithFrame:view.frame]; // If you want to cover whole screen then apply [[UIScreen mainScreen] bounds]] as a frame
        self.processView.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.4];
        //self.processView.userInteractionEnabled = FALSE;

        UIView *viewInner = [[UIView alloc] init];
        if (IS_IPHONE)
            viewInner.frame = CGRectMake(0, 0, 90, 90);
        else
            viewInner.frame = CGRectMake(0, 0, 150, 150);
        viewInner.center = self.processView.center;
        viewInner.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.7];
        [viewInner.layer setCornerRadius:10.0f];
        [viewInner.layer setMasksToBounds:YES];

        self.indicator = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:IS_IPHONE?UIActivityIndicatorViewStyleWhite:UIActivityIndicatorViewStyleWhiteLarge];
        self.indicator.frame = CGRectMake(0, IS_IPHONE?-15:-30, viewInner.frame.size.width, viewInner.frame.size.height);
        self.indicator.hidesWhenStopped = YES;
        [viewInner addSubview:self.indicator];

        UILabel *lblLoading = [[UILabel alloc] initWithFrame:CGRectMake(5, viewInner.frame.size.height-(IS_IPHONE?45:70), viewInner.frame.size.width-10, IS_IPHONE?40:70)];
        lblLoading.backgroundColor = [UIColor clearColor];
        lblLoading.textColor = [UIColor whiteColor];
        lblLoading.textAlignment = NSTextAlignmentCenter;
        lblLoading.adjustsFontSizeToFitWidth = TRUE;
        lblLoading.font = [UIFont systemFontOfSize:IS_IPHONE?15.0f:24.0f];
        lblLoading.text = @"Loading...";
        [viewInner addSubview:lblLoading];

        [self.processView addSubview:viewInner];
    }
    [view addSubview:self.processView]; // If you want to cover whole screen then add it to [self.window addSubview:self.processView]
    [self performSelector:@selector(createProcess) withObject:nil afterDelay:0.1];
}

- (void)createProcess
{
    [self.indicator startAnimating];
}

- (void)hideProcess
{
    [self.indicator performSelector:@selector(stopAnimating) withObject:nil afterDelay:0.5];
    [self.processView performSelector:@selector(removeFromSuperview) withObject:nil afterDelay:0.5];
}

当你想显示和隐藏的时候

YourClassName * classObject = [[YourClassName alloc] init];
[classObject showProcess:self.view];

[classObject hideProcess];

对于swift： 1.声明变量

var processView: UIView?
var indicator: UIActivityIndicatorView?

二,。定义方法

// MARK: - Process view

func showProcess(view:UIView) {

    UIScreen.mainScreen().bounds
    self.processView = UIView(frame: view.frame) // // If you want to cover whole screen then apply UIScreen.mainScreen().bounds as frame
    self.processView?.backgroundColor = UIColor.blackColor().colorWithAlphaComponent(0.4)

    let viewInner = UIView()
    let lblLoading = UILabel()

    if UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiom.Phone {

        viewInner.frame = CGRectMake(0, 0, 90, 90)
        self.indicator = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.White)
        self.indicator!.frame = CGRectMake(0, -15, viewInner.frame.size.width, viewInner.frame.size.height)
        lblLoading.frame = CGRectMake(5, viewInner.frame.size.height-45, viewInner.frame.size.width-10, 40)
        lblLoading.font = UIFont.systemFontOfSize(15.0)

    }
    else {

        viewInner.frame = CGRectMake(0, 0, 150, 150)
        self.indicator = UIActivityIndicatorView(activityIndicatorStyle: UIActivityIndicatorViewStyle.White)
        self.indicator!.frame = CGRectMake(0, -30, viewInner.frame.size.width, viewInner.frame.size.height)
        lblLoading.frame = CGRectMake(5, viewInner.frame.size.height-70, viewInner.frame.size.width-10, 70)
        lblLoading.font = UIFont.systemFontOfSize(24.0)
    }

    viewInner.center = self.processView!.center
    viewInner.backgroundColor = UIColor.blackColor().colorWithAlphaComponent(0.7)
    viewInner.layer.cornerRadius = 10.0
    viewInner.layer.masksToBounds = true

    self.indicator!.hidesWhenStopped = true
    viewInner.addSubview(self.indicator!)

    lblLoading.backgroundColor = UIColor.clearColor()
    lblLoading.textColor = UIColor.whiteColor()
    lblLoading.textAlignment = NSTextAlignment.Center
    lblLoading.adjustsFontSizeToFitWidth = true
    lblLoading.text = "Loading..."
    viewInner.addSubview(lblLoading)

    self.processView!.addSubview(viewInner)

    view.addSubview(self.processView!) // If you want to cover whole screen then add it to self.window.addSubview(self.processView)
    self.performSelector("createProcess", withObject: nil, afterDelay: 0.1)
}

func createProcess() {

    self.indicator?.startAnimating()
}

func hideProcess() {

    self.indicator?.performSelector("stopAnimating", withObject: nil, afterDelay: 0.5)
    self.processView?.performSelector("removeFromSuperview", withObject: nil, afterDelay: 0.5)
}

需要的时候打电话

var classObject = YourClass()
classObject.showProcess(self.view)

classObject.hideProcess()

---

谢谢，但我使用的是Swift 2，你能给我一些建议吗？我在使用

showProcess

和

hideProcess

方法时出错，

AppDelegate

分别没有成员

showProcess

和

AppDelegate

没有成员

hideProcess

您是否完美地实现了此代码？请再次检查。使用类对象调用定义方法的方法我在代码中遇到的名称问题。覆盖即将出现，它位于导航栏下方（如需要），但它不位于我在视图中添加的元素顶部，如

UITableView

，

UIImageView

等。我使用AutoLayoutHanks在基本视图顶部添加了这些元素，但我使用的是Swift 2，你能给我一些建议吗？我在

showProcess

和

hideProcess

方法中出错，

AppDelegate

没有成员

showProcess

和

AppDelegate

没有成员

hideProcess

你是否完美地实现了这段代码？请再次检查。使用类对象调用定义方法的方法我在代码中遇到的名称问题。覆盖即将出现，它位于导航栏下方（如需要），但它不会出现在我在视图中添加的元素顶部，如我使用AutoLayout在基础视图顶部添加的

UITableView

、

UIImageView

等