Display a view or splash screen before applicationDidEnterBackground (to avoid active view screenshot)

by

I think the problem is that you are testing in simulator. On device, it should work fine.

I tested this and it worked. Add an imageview with your splash image when app enters in background –

- (void)applicationDidEnterBackground:(UIApplication *)application
{

        UIImageView *imageView = [[UIImageView alloc] initWithFrame:self.window.bounds];

        imageView.tag = 101;    // Give some decent tagvalue or keep a reference of imageView in self
    //    imageView.backgroundColor = [UIColor redColor];
        [imageView setImage:[UIImage imageNamed:@"Default.png"]];   // assuming Default.png is your splash image's name

        [UIApplication.sharedApplication.keyWindow.subviews.lastObject addSubview:imageView];
}

And when app comes back in foreground –

- (void)applicationWillEnterForeground:(UIApplication *)application
{
    UIImageView *imageView = (UIImageView *)[UIApplication.sharedApplication.keyWindow.subviews.lastObject viewWithTag:101];   // search by the same tag value
    [imageView removeFromSuperview];

}

NOTE – On simulator (iOS 7.0), the added subview is not show when you check by pressing home button twice (Cmd + H), but on device it works as expected (like paypal, BofA apps)

EDIT: (Additional info)

In addition to obscuring/replacing sensitive information by adding subview / blur as explained above, iOS 7 provides you ability to ignore the screen snapshot via ignoreSnapshotOnNextApplicationLaunch of UIApplication inside applicationWillResignActive or applicationDidEnterBackground.

UIApplication.h

// Indicate the application should not use the snapshot on next launch, even if there is a valid state restoration archive.
// This should only be called from methods invoked from State Preservation, else it is ignored.
- (void)ignoreSnapshotOnNextApplicationLaunch NS_AVAILABLE_IOS(7_0);

Also, allowScreenShot flag can be explored in Restrictions Payload.

More Related Contents:

  1. didReceiveRemoteNotification: fetchCompletionHandler: open from icon vs push notification
  2. get UITextField Tag in Custom Methods
  3. Will iOS launch my app into the background if it was force-quit by the user?
  4. Status bar and navigation bar appear over my view’s bounds in iOS 7
  5. How Do I Take a Screen Shot of a UIView?
  6. @import vs #import – iOS 7
  7. How to change Navigation Bar color in iOS 7?
  8. Prevent screen capture in an iOS app
  9. Detect if the app was launched/opened from a push notification
  10. How to embed small icon in UILabel
  11. Start Location Manager in iOS 7 from background task
  12. Drawing Route Between Two Places on GMSMapView in iOS
  13. iOS 7 TableView like in Settings App on iPad
  14. Cannot install Alamofire in new Xcode Project. “No Such module Alamofire”
  15. Silent Push Notification in iOS 7 does not work
  16. How to draw a transparent UIToolbar or UINavigationBar in iOS7
  17. How do I set the height of tableHeaderView (UITableView) with autolayout?
  18. iBeacon Notification when the app is not running
  19. didReceiveRemoteNotification:fetchCompletionHandler not being called when app is in background and not connected to Xcode
  20. UITableViewCell show white background and cannot be modified on iOS7
  21. iOS 7 Status Bar Collides With NavigationBar
  22. ERROR ITMS-90032:”Invalid Image Path – No image found at the path referenced under key ‘CFBundleIcons’:AppIcon40x40″
  23. Button in UITableViewCell not responding under ios 7
  24. Is there a public way to force MPNowPlayingInfoCenter to show podcast controls?
  25. IOS7 Status bar hide/show on select controllers
  26. How to make custom UIBarButtonItem with image and label?
  27. UIProgressView custom track and progress images in iOS 7.1
  28. Using MDM To Configure An Enterprise App Via NSUserDefaults
  29. AVSpeechSynthesizer in background mode
  30. iOS timed background processing

Leave a Comment