![]() ![]() Recently I’ve found myself in need of updating my personal workstation. In mere months, the powerful workstation you were so proud of when you first put your rig together now looks long in the tooth and woefully underpowered. Moore’s law and the computer industry will pretty much ensure that your hardware will rapidly become obsolete. = so many years, a previs artist has to evaluate the equipment he’s working on. [UIView animateKeyframesWithDuration:70 delay:0 options:UIViewKeyframeAnimationOptionRepeat animations:^ What am I doing wrong? All of the NSLogs fire, but none of the events actually change, other than the final one. It was my understanding that the animateKeyframesWithDuration is measured in seconds, while relative start and relative duration are 0 - 1 in value, so I set each to be 0.2, as there are 5, and 0.2 is exactly a fifth. I have done some searches and looking at the documentation, but I'm definitely still missing something. I am trying now the suggested key frame animations, but it is only showing the last change and no repeats. I want both an image to change, and text change along with it. In my app, I need to set up an animation that will run on repeat until I perform an action on it. Basically whether it's safe or not - will there be a high probability of crashes resulting from engaging that functionality? It absolutely does not crash during testing because of this, but it wouldn't be the first time that things worked for me during testing but failed after being shipped. I'm wondering if executing changes to the UI thread with such frequency is an established bad idea, if that's exactly how Apple does it. The closer, the faster, so the less it sleeps for. The change is affected using a loop in a background thread that sleeps in each iteration, and how long it sleeps for depends on how close the user is to the top/bottom. And I change it at a rate starting from once every 5 milliseconds down to as fast as possible - depending on how close the touch is to the top of the scrollview frame. ![]() So the increment/decrement is tentatively 0.34. ![]() Change the content offset at a rate that effects fluid scrolling. I'll be honest I don't remember whether it ends up getting placed wherever you happened to be holding it over at that time, or it goes back to where it started but it doesn't work. I tried using UIView.animate(.) to change the offset to zero at an acceptable rate - and then cancel it if it moves sufficiently far from the top or reaches beginning - but on doing so the arranged subview that was being dragged immediately disappears. So when you drag it close to the top, you want it to scroll upwards and same for the bottom. The problem with it is that it does not account for scrollable lists in that you want the list to scroll upwards if you want to move an item your dragging to a position not visible within the bounds of the scrollview. I mean an animation that you don't use any frameworks for, that you effect by manipulating the values of the view yourself by such small amounts and with such frequency that the change is fluid.įor example, I have a drag and drop gesture recognizer for stackviews although I've made some alterations not reflected in that file. So what do I mean by "truly" custom animations. ![]()
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