Animate ProgressBar update in Android

Question

I am using a ProgressBar in my application which I update in onProgressUpdate of an AsyncTask. So far so good.

What I want to do is to animate the prog

Answer 1

I just wanted to add an extra value for those who want to use Data Binding with a progress bar animation.

First create the following binding adapter:

@BindingAdapter("animatedProgress")
fun setCustomProgressBar(progressBar: ProgressBar, progress: Int) {
    ObjectAnimator.ofInt(progressBar, "progress", progressBar.progress, progress).apply {
        duration = 500
        interpolator = DecelerateInterpolator()
    }.start()
}

And then use it in the layout which contains the ViewModel that reports the status updates:

The ViewModel itself will report the status with the following LiveData:

private val _progress = MutableLiveData(null)
val progress: LiveData
    get() = _