KVO-MVVM 0.5.6

KVO-MVVM 0.5.6

LangLanguage Obj-CObjective C
License MIT
ReleasedLast Release Feb 2019

Maintained by vdugnist, Anton Bukov, Andrew Podkovyrin, Arkady Fraerman.

KVO-MVVM 0.5.6

  • By
  • Anton Bukov and Andrew Podkovyrin


CI Status Version License Platform


  1. First #import <KVO-MVVM/KVOUIView.h> or any other available header
  2. Subclass your custom view from KVOUIView
  3. Use mvvm_observe:with: or mvvm_observeCollection:with: like this:
   - (instancetype)initWithFrame:(CGRect)frame {
       if (self = [super initWithFrame:frame]) {

           [self mvvm_observe:@keypath(self.viewModel.title)
                         with:^(typeof(self) self, NSString *title) {
               self.titleLabel.text = self.viewModel.title;
           [self mvvm_observeCollection:@keypath(self.viewModel.values)
                                   with:^(typeof(self) self,
                                          NSArray<NSNumber *> *value,
                                          NSKeyValueChange change,
                                          NSIndexSet *indexes) {
               // ...

       return self;
  1. Do not unobserve any KVO-observings any more

Observing keypaths with weak properties in it is not supported.

To run the example project, clone the repo, and run pod install from the Example directory first.



KVO-MVVM is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod 'KVO-MVVM'


Anton Bukov, [email protected] Andrew Podkovyrin, [email protected]


KVO-MVVM is available under the MIT license. See the LICENSE file for more info.