When I was implementing changing screen orientation following the tutorial on https://ionicframework.com/docs/native/device-orientation I got NullInjectorError. I already found the solution so I want share it with you.
Default page transitions that you can find in out of the box Ionic framework does not always suits your needs. In some cases you may want to have custom page animations when ion-router-outlet navigates between pages. Let me share with you a very compact and elegant solution for the title topic.