private val loadingOverlay: LoadingOverlay by lazy {
    // Pass activity reference.
    LoadingOverlay.with(context)
}

// ...

fun onCreateNewAccountButtonClicked() {
    loadingOverlay.show()
    // Do loading work and then dismiss the loading overlay.
    loadingOverlay.dismiss()
}

LoadingOverlay.with(
    context = this,
    animation = LoadingAnimation.PROGRESS_BAR
)

LoadingOverlay.with(
    context = this,
    animation = LoadingAnimation.LOADING_SPINNER
)

LoadingOverlay.with(
    context = this,
    animation = LoadingAnimation.FADING_PROGRESS
)

// LOADING_SPINNER default dimens value is 70dp, we can update it to 100dp.
LoadingOverlay.with(
    context = this,
    animation = LoadingAnimation.LOADING_SPINNER.withDimens(100)
)

LoadingOverlay.with(
    context = this,
    animation = LoadingAnimation(
        rawRes = R.raw.loading_paperplane,
        dimens = 100
    )
)

LoadingOverlay.with(
    context = this,
    dimAmount = 0.2f
)

LoadingOverlay.with(
    context = this,
    dimAmount = 0.8f
)

val loadingOverlay = LoadingOverlay.with(
    context = this,

    // Specify whether the overlay is cancelable on
    // back presses or screen touches, default is false.
    isCancellable = true,

    onShowListener = {
        // Optionally run some code when the overlay is shown.
    },

    onCancelListener = {
        // Optionally run some code if isCancellable
        // is set to true and the overlay is cancelled.
    },

    onDismissListener = {
        // Optionally run some code when the overlay is dismissed.
    }
)

// ...

// You can use the showFor function to display the
// loading overlay for a specific period of time.
loadingOverlay.showFor(5, TimeUnit.SECONDS) {
    // Optionally run some code after the set period has passed.
}