Capture UIImage of UIView including UINavigationBar - ios

Question

I found this code which is quite nice:
+ (UIImage *) imageWithView:(UIView *)view
{
UIGraphicsBeginImageContextWithOptions(view.bounds.size, view.opaque, [[UIScreen mainScreen] scale]);
[view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage * img = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return img;
}
But I need to capture UINavigationBar as well because i want to use the image as transition layer in my UIStoryboardSegue. Any ideas?

Answer 1

Use your view's window as the view so the navigation bar and status bar will be included, too. If you need to remove the status bar, you'll have to crop the image.

Answer 2

You should take a screenshot of self.navigationController?.view .
That way you get the whole view with navigationBar but without status bar.
if let view = self.navigationController?.view {
let snapshot = view.snapshotViewAfterScreenUpdates(false)
}

Answer 3

instead of view.layer give reference of appdelegate.window.layer it will work.

Answer 4

Wow, really none of these answers work. This is how you do it to get screenshot of everything including navigation controller
-(void) takeScreenshot
{
CGRect screenRect = [[UIScreen mainScreen] bounds];
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone)
{
//its iphone
CGSize result = [[UIScreen mainScreen] bounds].size;
if(result.height == 480 || result.width == 480)
{
// iPhone Classic
screenRect = CGRectMake(0, 0, 320, 480);
}
if(result.height == 568 || result.width == 568)
{
// iPhone 5
screenRect = CGRectMake(0, 0, 320, 568);
}
}
else
{
//its pad
screenRect = CGRectMake(0, 0, 768, 1024);
}
NSArray* paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString* documentsDirectory = [paths objectAtIndex:0];
// This code is for high resolution screenshot
UIGraphicsBeginImageContextWithOptions(screenRect.size, NO, 0.0);
//this was pre iOS 7.0
//[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
// iOS 7.x -->
[[[[UIApplication sharedApplication] windows] objectAtIndex:0] drawViewHierarchyInRect:self.view.bounds afterScreenUpdates:YES]; // Set To YES
UIImage *viewImage2 = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
NSData* imageData2 = UIImageJPEGRepresentation(viewImage2, 1.0);
NSString* incrementedImgStr2 = [NSString stringWithFormat: #"UserScreenShotPic.jpg"];
// Now we get the full path to the file
NSString* fullPathToFile3 = [documentsDirectory stringByAppendingPathComponent:incrementedImgStr2];
[imageData2 writeToFile:fullPathToFile3 atomically:NO];
}