Develop Reference

TextView marquee WITHOUT android:layout_width="match_parent"

I am making a UI which will look like this
My goal is to add marquee scroll effect in highlighted text views, The parent container for the both text view is Constraint layout, Hence I am using android:layout_width="0dp" so that my view expands to its constraints that is 50-50 of the total space.
I did some research and found that I need android:layout_width="match_parent" in order to achieve marque.
My current code for marquee:
<TextView
android:ellipsize="marquee"
android:marqueeRepeatLimit="marquee_forever"
android:focusable="true"
android:singleLine="true"
android:focusableInTouchMode="true"
android:freezesText="true"
android:scrollHorizontally="true"
android:gravity="start"
android:id="#+id/row_load_list_toAddress"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:text="End Location"
android:textColor="#color/black"
android:textSize="20sp"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toEndOf="#+id/imageView5"
app:layout_constraintTop_toBottomOf="#+id/textView13" />
Anyone please put a light on what I might be doing wrong here and what is the solution?

Inorder for the marquee to work you must set setSelected property to true in your Activity related to that layout
TextView txt = findViewById(R.id.row_load_list_toAddress);
txt.setSelected(true);
Hope this will fix your problem.

Moving text in textView android

I would like to ask you if textview has any option that when I have too long text for example text has 30 dp and textview has 15 dp I want to show text which is moving from left corner to right and return to start and again. Something like animation. I want to user see all text. Something like automatic scroll.
Edit: How I can do that in code, not xml?

an example -
in the XML :
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="#+id/tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:singleLine="true"
android:ellipsize="marquee"
android:marqueeRepeatLimit="marquee_forever"
android:scrollHorizontally="true"
android:textColor="#ff4500"
android:text="this is a very long piece of text that will move" />
</RelativeLayout>
in Java:
tv = (TextView) this.findViewById(R.id.tv);
tv.setSelected(true); // Set focus to the textview

You should use android:ellipsize="marquee".
EDIT: you can use textView.setEllipsize(TextUtils.TruncateAt.MARQUEE);

<TextView
android:id="#+id/YOURID"
android:layout_width="15dp"
android:layout_height="wrap_content"
android:ellipsize="marquee"
android:focusable="true"
android:focusableInTouchMode="true"
android:marqueeRepeatLimit="marquee_forever"
android:scrollHorizontally="true"
android:singleLine="true"
/>
This will help it to scroll until it is focused

Use this code, it's working 100%:
TextView top=new TextView(this);
top.setText("Developers are working to add more features");
top.setEllipsize(TextUtils.TruncateAt.MARQUEE);
top.setHorizontallyScrolling(true);
top.setMarqueeRepeatLimit(-1);
top.setFocusable(true);
top.setFocusableInTouchMode(true);

Yes, its called marquee. Set the following to your TextView:
android:singleLine="true"
android:ellipsize="marquee"

Try this 3 lines codes: (a summary of the above)
textView.setEllipsize(TextUtils.TruncateAt.MARQUEE);
textView.setSingleLine(true);
textView.setSelected(true);

In order to move text, besides adding attributes:
android:ellipsize="marquee"
android:singleLine="true"
android:marqueeRepeatLimit="marquee_forever"
android:focusable="true"
android:clickable="true"
android:focusableInTouchMode="true"
android:scrollHorizontally="true"
it is necessary for View to be in focus, so this can be done in two ways:
Programmatically:
tv.setSelected (true);
Do everything in XML by adding requestFocus tag:
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:ellipsize="marquee"
android:singleLine="true"
android:marqueeRepeatLimit="marquee_forever"
android:focusable="true"
android:clickable="true"
android:focusableInTouchMode="true"
android:scrollHorizontally="true">
<requestFocus />
</TextView>

Scroll TextView like Marquee in android

I am having a TextView and want to automatically scroll horizontally. i know it can be done using ellipsize property of text view. Please help me on this.

Use ellipsize property of textView as follows
<TextView
android:id="#+id/mywidget"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:lines="1"
android:ellipsize="marquee"
android:fadingEdge="horizontal"
android:marqueeRepeatLimit="marquee_forever"
android:scrollHorizontally="true"
android:textColor="#ff4500"
android:text="Simple application that shows how to use marquee, with a long text"/>

Android: TextView is not scrolling Automatically

I have a TextView with following attributes :
<TextView
android:id="#+id/appheader"
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_centerVertical="true"
android:textColor="#ffffff"
android:layout_marginLeft="3dp"
android:textSize="21sp"
android:singleLine="true"
android:ellipsize="marquee"
android:marqueeRepeatLimit="marquee_forever"
android:scrollHorizontally="true"
android:focusable="true"
android:focusableInTouchMode="true"/>
Actually the TextView scrolls ONLY when I click the TextView. But I want to scroll it automatically when I launch the Activity. How can I do this ?

<TextView
android:id="#+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="very long text to srollll dkfjadkfjkldjfkjdkghjhtudhfjhdjfkdfkadjsajekdfjak"
android:singleLine="true"
android:marqueeRepeatLimit="marquee_forever"
android:ellipsize="marquee"
android:focusable="true"
android:focusableInTouchMode="true"/>

By-default TextView marquee effect works when it get focus. To make an automatic marquee effect you need to extend TextView class. See this link for reference.

set android:scrollHorizontally="true" for that textview.
Also set the following two properties:
text.setMovementMethod(new ScrollingMovementMethod());
text.setSelected(true);

Marquee in android

In my android application i need to scroll a marquee text continuously.
in my Xml i have this code:
<TextView
android:id="#+id/widget28"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:singleLine="true"
android:ellipsize="marquee"
android:fadingEdge="horizontal"
android:marqueeRepeatLimit="marquee_forever"
android:scrollHorizontally="true"
android:textColor="#ff4500"
android:text="Simple application that shows how to use RelativeLayout " />
And in my Java source code i have:
TextView tv = (TextView )findViewById(R.id.widget28);
tv.setSelected(true);
Now my issue is this code works fine and marquee runs fine even if the focus is not on the control but the scrolling of text is not complete.I need the text to scroll completely.If i add space to the text both before and after the text it works fine but that is not good programming. Is there a good way to this?

If you want it to scroll continuously, you must use this in your xml:
android:ellipsize="marquee"
android:fadingEdge="horizontal"
android:focusable="true"
android:focusableInTouchMode="true"
android:marqueeRepeatLimit="marquee_forever"
android:scrollHorizontally="true"
android:selectAllOnFocus="true"
android:singleLine="true"
It is not necessary to put setSelected(true); in the file
PS. You must only click on it when the focus changes.

try this::
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:singleLine="true"
android:ellipsize="marquee"
android:fadingEdge="horizontal"
android:marqueeRepeatLimit="marquee_forever"
android:scrollHorizontally="true"
android:textColor="#ff4500"
android:text="Simple application that shows how to use RelativeLayout "
android:focusable="true"
android:focusableInTouchMode="true" android:freezesText="true"></TextView>

Guys, TextView scrolls its text ONLY when it's focused. As soon as it loses the focus, text scrolling will stop.

I don't understand your issue.
I have copied your code and inserted the TextView in a RelativeLayout with fill_parent for the 2 axes and it works fine (isn't that what you want?) :
I have tested that code on default emulator 2.1 and 2.2. No trouble.
Here is my class :
public class TextViewMarquee extends Activity {
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.textview);
findViewById(R.id.widget28).setSelected(true);
}
}
And the associated xml :
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:id="#+id/widget28"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:ellipsize="marquee"
android:fadingEdge="horizontal"
android:marqueeRepeatLimit="marquee_forever"
android:scrollHorizontally="true"
android:singleLine="true"
android:text="Simple application that shows how to use RelativeLayout"
android:textColor="#ff4500" />
</RelativeLayout>
And that's actually all, no mystery line in the manifest or style or ...