Android Set TextAppearance Style/Size Programatically

TextViewCompat.setTextAppearance(textView, android.R.style.TextAppearance_Large)

TextViewCompat.setTextAppearance(textView, R.style.TextAppearance_AppCompat_Large)

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAppearance="?android:attr/textAppearanceLarge" />

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:textAppearance="@style/TextAppearance.AppCompat.Medium"
    />