Here is a sample application which Simultaneous download like iTunes.
iOS Core Image has many filters. It can be able to handle the DNG/RAW image file. Here is a sample code.
GPUImage is awesome framework and GPUImage 2 also great which adopted Swift 3. Here is a simple blending sample.
When change the title in UIButton dynamically. There was flickering. It was caused by animation. Here is a work around.
This article will introduce you how to create simple iOS App by using JTAppleCalendar.
This is a kind of blunder when I used the interval timer in Swift 3.0.
For instance, like Karaoke. In case of synchronized recording and playing audio. It is possible to realized by using AVAudioEngine. All source code is here. By using mixer node, you can add more inputs. Customize it yourself. Enjoy. Check it out.
To solve this issue, spent over one week. AVAudioEngine inputNode(Mic) sampling rate is fixed at 44100 Hz. But I wanted to get the 16000 Hz PCM data. Code is simple. I used AVAudioConverter in installtap. Code is here.
When AVAudioEngine Reverb.bypass set to the false, Audio-signal has been muted. Why? This is one of the alternative code. Part of reverb on/off Sample code is here
Easy to create if you use Static Cell. Also It can include UISwitch and UISegmentedControl and so on. This is sample for memorandum.