Here's a sample code snippet that demonstrates how to create a view that plays a sound on tap and displays a volume slider on double-tap:
main.swift2532 chars92 lines
Explanation:
The SoundView
struct represents the view for a single sound. It takes two parameters: the name of the sound file to play, and a binding to the volume value.
The view uses AVAudioPlayer
to play the sound file when tapped. When double-tapped, it displays a rectangle with a volume slider. The slider's binding is the same as the one passed to the view, so changing the slider value updates the parent view's state.
To implement this behavior, we use gesture recognizers to detect taps and double-taps. The tapCount
state variable keeps track of how many times the view has been tapped. If it is 1
, the next tap should display the volume slider.
The showVolumeSlider()
function creates a new view with a blue rectangle and a volume slider. It combines multiple gesture recognizers so that the user can drag the slider to change the volume, tap the top half of the rectangle to dismiss the slider, or long-press to reset the tap count to zero.
Finally, the ContentView
struct contains a single sound view, passing in the sound name and a binding to the volume.
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