How to Change the Size of Uiactivityindicator

Can I change the size of UIActivityIndicator?

The size is fixed by the style. It's a standardized interface element so the API doesn't like to fiddle with it.

However, you probably could do a scaling transform on it. Not sure how that would affect it visually, however.

Just from a UI design perspective, its usually better to leave these common standardized elements alone. User have been taught that certain elements appear in a certain size and that they mean specific things. Altering the standard appearance alters the interface grammar and confuses the user.

How to increase the size of the activity indicator

You can try setting loadingIndicator.transform = CGAffineTransform.init(scaleX: 2, y: 2)

Unable to set / increase the size of UIActivityindicator view

What i did to change the ActivityIndicator size in app is:

Just Apply the Transform on your activity indicator and Rescale it.

Here is the code

UIActivityIndicatorView*  mySpinner = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleWhiteLarge];
mySpinner.transform = CGAffineTransformMakeScale(1.5, 1.5);
mySpinner.color=[UIColor blueColor];
mySpinner.center =self.view.center;
mySpinner.hidesWhenStopped = YES;
[self.view addSubview:mySpinner];

My activityIndicator don't resize

Since you have written the above snippet without NSLayoutConstraint, the shortest solution would be to respond to:

- viewWillTransitionToSize:withTransitionCoordinator

Storyboard solution

A more elegant solution is to use Storyboard + Autolayout and exactly 3 lines of code, 1 being optional:

func showActivityIndicator(uiView: UIView){
    self.view.bringSubviewToFront(loadingView); // Only if covered
    loadingView.hidden = false
    activityIndicator.startAnimating()
}

You can move the round corners, colors and more to -viewDidLoad.

loadingView.clipsToBounds = true
loadingView.layer.cornerRadius = 10

The size of the UIActivityIndicatorView by different version of software

That is completely up to you. If you want to support your application for iOS 4.2 and higher, use the arithmetic for 4.2 else go for 5.0.

Adjust UIActivityIndicatorView position in AlertView - Swift

Try following code:

        var alert : UIAlertView = UIAlertView(title: "Loading...", message: nil , delegate: nil, cancelButtonTitle: nil)
        var viewBack:UIView = UIView(frame: CGRectMake(83,0,100,100))

        var loadingIndicator: UIActivityIndicatorView = UIActivityIndicatorView(frame: CGRectMake(50, 10, 37, 37))
        loadingIndicator.center = viewBack.center
        loadingIndicator.hidesWhenStopped = true
        loadingIndicator.activityIndicatorViewStyle = UIActivityIndicatorViewStyle.Gray
        loadingIndicator.startAnimating();
        viewBack.addSubview(loadingIndicator)
        viewBack.center = self.view.center
        alert.setValue(viewBack, forKey: "accessoryView")
        loadingIndicator.startAnimating()
        alert.show();

Is it possible to change an UIActivityIndicatorView color to black in iOS?

You can use the .color property in order to change the UIActivityIndicatorView color, e.g.:

// Objective-C
activityIndicator.color = [UIColor greenColor];

// Swift
activityIndicator.color = .green

Note that .color is only available from iOS 5.

How to set a custom background view properly with UiActivityIndicator

There is no issue in either your auto layout setup nor the code you are trying.

The off-center issue actually seems to be an iOS bug when setting a custom color on a UIActivityIndicatorView.

You can see this for yourself.

• Drag a basic UIActivityIndicatorView
• Set a background color

• Set it's style to "Large White"
  
  

• Now set a color
  
  

This doesn't happen when the style is White or Gray

---

Tested it in Xcode 9.3 Storyboard as well as Simulator with Debug > Color Blended layers - ON

---

Related Topics