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Xcode – XCTest UI Test System PhotoAuth Alert error。[__NSArrayM insertObject:atIndex:]: object cannot be nil (NSInvalidArgumentException)

// tap photo auth entrance XCUIElement *collectionView = app.collectionViews.firstMatch; XCUIElement *authCell = [collectionView.cells elementBoundByIndex:2]; [authCell tap]; // springboard click allow XCUIApplication *springboard = [[XCUIApplication alloc] initWithBundleIdentifier:@"com.apple.springboard"]; XCUIElement *button = [[springboard.alerts.firstMatch buttons] elementBoundByIndex:1]; BOOL exist = [button waitForExistenceWithTimeout:5]; XCTAssertEqual(exist, YES, @"photo…

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Android Studio – Dialog Box Appears for half a second and closes automatically

I am trying to create a very simple dialog box. I found the code references from the internet obviously. My code is this: AlertDialog.Builder alertDialog = new AlertDialog.Builder( ConsignmentConViewActivity.this); alertDialog.setTitle("Alert Dialog"); alertDialog.setMessage("Welcome to AndroidHive.info"); alertDialog.setPositiveButton("OK", new DialogInterface.OnClickListener() { public void…

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Xcode – How can i use notification & alert in swift?

@IBAction func tapDeleteButton(_ sender: UIButton) { let alert = UIAlertController(title:"Are you sure?",message: "Do you really want to delete?",preferredStyle: UIAlertController.Style.alert) let cancle = UIAlertAction(title: "Cancel", style: .default, handler: nil) alert.addAction(cancle) present(alert, animated: true, completion: nil) let delete = UIAlertAction(title: "Delete", style:…

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