How to set text of text view in another thread

by

You need a reference to that textview and then do:

textView.post(new Runnable() {
    public void run() {
        textView.setText(yourText);
    } 
});

in Kotlin:

val textView: TextView = findViewById(R.id.textView)
textView.post(Runnable { textView.setText(yourText) })

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