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Or when changing to textView.textMetricsParamsCompat still crash.

private fun setAsyncText(textView: AppCompatTextView, text: String?) {
        if (!text.isNullOrEmpty()) {
            val textFuture = PrecomputedTextCompat.getTextFuture(text!!, textView.textMetricsParamsCompat, null)
            textView.setTextFuture(textFuture) //Crash
        }
 }

add this line  :
     textView.setLayoutDirection(ViewCompat.getLayoutDirection(textView));
before  :
    setTextFuture(....)

Thanks, #3. It worked.

But I think it is better when set before this line
val textFuture = PrecomputedTextCompat.getTextFuture(text!!, textView.textMetricsParamsCompat, null)

Set android:layoutDirection="locale" or android:layoutDirection="inherit" for AppCompatTextView in the  XML layout didn't this problem.

The new method btw re-set layoutDirector. Weird! This should handle in the AppcompatTextView.

private fun setAsyncText(textView: AppCompatTextView, text: String?) {
        if (!text.isNullOrEmpty()) {
            textView.layoutDirection = textView.layoutDirection
            val textFuture = PrecomputedTextCompat.getTextFuture(text!!, textView.textMetricsParamsCompat, null)
            textView.setTextFuture(textFuture) //Crash
        }
}

Sorry. I forgot the info.

minSdk 21
targetSdk 28

Thanks #3 again.