How to use UIVisualEffectView to Blur Image?
ios, objective-c, uikit, uiview, uivisualeffectview
Solution
Just put this blur view on the imageView. Here is an example in Objective-C:
UIVisualEffect *blurEffect;
blurEffect = [UIBlurEffect effectWithStyle:UIBlurEffectStyleLight];
UIVisualEffectView *visualEffectView;
visualEffectView = [[UIVisualEffectView alloc] initWithEffect:blurEffect];
visualEffectView.frame = imageView.bounds;
[imageView addSubview:visualEffectView];
and Swift:
var visualEffectView = UIVisualEffectView(effect: UIBlurEffect(style: .Light))
visualEffectView.frame = imageView.bounds
imageView.addSubview(visualEffectView)
Problem
Could someone give a small example of applying the blur to an image? I've been trying to figure out the code for a while now :( still new at obj c! The `UIVisualEffectView` provides a simple abstraction over complex visual effects. Depending on the desired effect, the results may affect content layered behind the view or content added to the view’s contentView. Apply a `UIVisualEffectView` to an existing view to apply a blur or vibrancy effect to the exiting view. After you add the UIVisualEffectView to the view hierarchy, add any subviews to the contentView of the `UIVisualEffectView`. Do not add subviews directly to the `UIVisualEffectView` itself. https://developer.apple.com/documentation/uikit/uivisualeffectview#//apple_ref/occ/instp/UIVisualEffectView/contentView