let mainQueue = NSOperationQueue.mainQueue()
NSNotificationCenter.defaultCenter().addObserverForName(UIApplicationUserDidTakeScreenshotNotification,
object: nil,
queue: mainQueue) { notification in
// executes after screenshot
}
This code works after taking screenshot.
Is there any way we can replace view with blank view while taking screenshot?
As we know we cannot disable screenshot in ios.
Related
Hi I am using UIActivityViewController to share content on social networks but facing one issue. The issue is when i select the share button the UIActivityViewController gets appear and I select the Facebook option.
I select the Facebook option in the sharing sheet -> Facebook sharing view appears with two options (Cancel and Next). When I select the Cancel button giving me another action sheet to discard or keep the post. When i select to discard the Action Sheet get disappear but the Facebook sharing view still keep showing and there is no way to go back.
Second when I press the next button in the Facebook sharing view -> another Facebook view gets appear with two buttons (Cancel and Share).... When I click the share button content get share on Facebook and black screen appears with a check in circle and text "Shared to Facebook!" .. And the application get stuck on this Screen.
Below is my code, Any help would be appreciated, I am also using the activityViewController!.completionWithItemsHandler but this closure not getting called in case of Facebook.
let url = "\(UserDefaults.baseURL)/pl/\(resource)/\(sharingId)"
// set up activity view controller
let imageToShare = [ url ]
activityViewController = UIActivityViewController(activityItems: imageToShare, applicationActivities: nil)
activityViewController!.popoverPresentationController?.sourceView = self.view // so that iPads won't crash
// exclude some activity types from the list (optional)
activityViewController!.excludedActivityTypes = [UIActivity.ActivityType.airDrop]
activityViewController!.completionWithItemsHandler = { (activityType: UIActivity.ActivityType?, completed:
Bool, arrayReturnedItems: [Any]?, error: Error?) in
if completed {
print("share completed")
self.dismiss(animated: true)
return
} else {
print("cancel")
self.dismiss(animated: true)
}
if let shareError = error {
print("error while sharing: \(shareError.localizedDescription)")
}
}
// present the view controller
self.present(activityViewController!, animated: true, completion: nil)
I wanted to tap on webview. No specific content. But any where in a webivew.
The webview content is having a graph. I need to tap on the graph.
How can I do that?
I tried using this:
XCUIApplication().descendants(matching: .webView).element.tap()
But no luck
try something like this:
func testSomething() {
let app = XCUIApplication()
app.launch()
app.webviews.tap()
}
I have a toolbar that's instantiated on viewDidLoad on top of a webkit. When I take a snapshot on the simulator, the toolbar is missing which is what I would like. When built on the device, the toolbar is there.
I tried to hide the toolbar with:
toolbar.isHidden = true
but the application crashes with toolbar being nil. If I change it to:
toolbar?.isHidden = true
It still shows up considering it still thinks it's nil.
The toolbar is set up on viewDidLoad by calling another function:
var toolbar : UIToolbar!
override func viewDidLoad() {
super.viewDidLoad()
setUpToolBar()
}
func setUpToolBar() {
let saveButton = UIBarButtonItem(barButtonSystemItem: .save, target: self, action: #selector(takeScreenshot))
...
let toolbar = UIToolbar(frame: CGRect(x: 0, y: 300, width: 200, height: 50))
toolbar.setItems([saveButton,flexibleSpaceFillerLeft,userAgentButton,flexibleSpaceFillerRight,doneButton], animated: true)
view.addSubview(toolbar)
}
The code for my snapshot is below. This is where I tried to hide the toolbar before taking the snapshot.
#objc func takeScreenshot() {
webView.takeSnapshot(with: nil, completionHandler: { (image,error) in
if let image = image {
self.screenshotOfWindow = image
self.showScreenshotEffect()
self.saveAllData()
} else {
print (error?.localizedDescription as Any)
}
})
}
Here's the screen I need to take a screenshot of:
The red box in the screenshot is the bar that I need to disappear from the screenshot.
I'd like to be able to take the screenshot without the bottom bar in view. As stated before, this works in the simulator, but the device always shows the bar. There's also a "navigation controller" gap at the top of the screenshot since the top bar covers part of the screen at top, but this is just blank and something I can address later.
I just wanted to come back and answer how I solved this. The webview is embedded in a navigation controller, but I was creating the toolbar programmatically on viewDidLoad by calling a setupToolBar function I had created early on in the project. I could hide the toolbar, but it was still being captured while taking the screenshot. I commented all of that code out and used the navigation controller's toolbar instead. Now when I take the screenshot, the bottom and top bar of the navigation controller is not part of the screenshot.
I have an activity indicator that gets presented on an iPhone and iPad. In the iPad in split screen mode it gets presented to whichever side of the view that called it. I would instead like it to get presented in the middle/center the window's screen. If I do it this way wether on the iPhone in portrait or iPad in split screen mode it will always be in the center of the screen.
How do I do this?
MyView: UIViewController{
let actInd = UIActivityIndicatorView(activityIndicatorStyle: .whiteLarge)
#IBAction fileprivate func buttonPressed(_ sender: UIButton) {
guard let window = UIApplication.shared.keyWindow else { return }
//how to add actInd as subview to the window' screen?
actInd.startAnimating()
}
}
It's pretty simple. Turn off the auto-resizing mask. Add the add actInd to window, then set the center anchors.
actInd.translatesAutoresizingMaskIntoConstraints = false
window.addSubview(actInd)
actInd.centerXAnchor.constraint(equalTo: window.centerXAnchor).isActive = true
actInd.centerYAnchor.constraint(equalTo: window.centerYAnchor).isActive = true
Window is subclass of UIView. Just add it as it's subview like you're adding a view to another view. But remember that window is shared throughout your app, so adding it every-time will consume memory, remove it after your job is done.
If you want to center it in the window, you can use autoResizingMask or add constraints to it.
I need to know current shown icon of another running application, I have tried this code:
var icon = NSRunningApplication.runningApplicationsWithBundleIdentifier("some.app.dentifier").first?.icon
but this returns a fixed app icon and if the other app changed its icon this code still returns same icon before change.
Is there a way to return current shown icon of another app or icon identifier ?
First add this to applicationDidFinishLaunching
let appChanged = Notification.Name("NSWorkspaceDidActivateApplicationNotification")
NSWorkspace.shared.notificationCenter.addObserver(self, selector: #selector(self.appChanged), name: appChanged, object: nil)
Then this function will get you the image
#objc func appChanged(notification:NSNotification){
if let userInfo = notification.userInfo![NSWorkspace.applicationUserInfoKey] as? NSRunningApplication {
let icon = userInfo.icon
}
}