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<TextView
android:id="@+id/scrollingText"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="40dp"
android:text="Texto aqui"
android:focusable="true"
android:focusableInTouchMode="true"
android:singleLine="true"
android:scrollHorizontally="true"
android:ellipsize="marquee"
android:marqueeRepeatLimit ="marquee_forever"/>
From what you’re saying, it seems to be the case mark an answer as accepted. Here we do not write "solved" in the question. If you have an answer that really helped you, mark it as accepted. If you came to the solution on your own, put in the solution as an answer. So content is more organized and easier to find in the future by other people with similar problems.
– Barbetta