Android: Auto-scrolling text in TextView

Question

I've created a series of tabs that have a fixed width of 100px. A tab contains an image with some text below it. If the text is too long to fit, I want it to automatically scroll. I only want one line. I tried the following but it did not work. I am using Android 2.3:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_marginRight="3dp" android:layout_marginTop="3dp" android:background="#ff737373" android:gravity="center" android:minWidth="64dp" android:orientation="vertical" android:padding="3dp" > <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:tag="tabImage" > </ImageView> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:ellipsize="marquee" android:marqueeRepeatLimit="marquee_forever" android:focusable="true" android:focusableInTouchMode="true" android:scrollHorizontally="true" android:singleLine="true" android:maxWidth="100px" android:tag="tabCaption" android:textColor="#ffd9d9d9" android:textSize="16sp" /> </LinearLayout>

Any idea why this does not work? I came across the solution from another posting and there the user indicated that it works.

Khan · Accepted Answer · 2014-04-03 12:15:02Z

11

In your activity you have to add if you want to marquee on text

 TextView tv=(TextView)findViewById(R.id.textview1); tv.setSelected(true);

edited Apr 3, 2014 at 12:15

answered Jun 25, 2012 at 5:56

Khan

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1 Comment

Johann Over a year ago

After posting this, I did some more searching and came across this as well. Thanks a lot anyway!

Thomas Dignan · Accepted Answer · 2012-06-25 05:55:54Z

You might want to try this:

https://github.com/kaeppler/ignition/blob/master/ignition-core/ignition-core-lib/src/com/github/ignition/core/widgets/ScrollingTextView.java

Masoud Siahkali · Accepted Answer · 2016-08-09 11:08:10Z

<TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:singleLine="true" android:gravity="center" android:ellipsize="marquee" android:focusable="true" android:focusableInTouchMode="true" android:marqueeRepeatLimit="marquee_forever" android:text="Auto text scroller" android:textSize="50sp" />

Gogu CelMare · Accepted Answer · 2017-05-23 23:06:25Z

Be aware that if the text is smaller in length than the width of the bounds defined for it it WILL NOT scroll. In this case you may want to extend the text with itself something like:

-. . . . .

String charsInBreak = " "; while (bounds.width() < this.m_width) { m_text = (m_text + charsInBreak + m_text); paint.getTextBounds(m_text, 0, m_text.length(), bounds); }

And if you want your text to marquee forever:

m_textView.setMarqueeRepeatLimit(-1);

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