How to Make a Textview Automatically Scroll as I Add More Lines of Text

How can I make a TextView automatically scroll as I add more lines of text?

As per answer here Making TextView Scrollable in Android

You don't need to use a ScrollView actually.

Just set the

android:maxLines = "AN_INTEGER"

android:scrollbars = "vertical"
properties of your TextView in your layout's xml file.

Then use:

yourTextView.setMovementMethod(new ScrollingMovementMethod());

in your code.

That will work..

Need to make TextView scroll vertically automatically

You shouldn't put vertically scrollable component inside vertically scrollable scrollview, and since your textview is scrollable, i don't see why you need the scrollview in the first place.
Then you can use text.setScrollY(text.getLayout().getHeight()). I'm not sure if it will work, but if it doesn't you can try Get the size of a text in TextView

Making TextView scrollable on Android

You don't need to use a ScrollView actually.

Just set the

android:scrollbars = "vertical"

properties of your TextView in your layout's xml file.

Then use:

yourTextView.setMovementMethod(new ScrollingMovementMethod());

in your code.

Bingo, it scrolls!

How do I enable vertical AutoScroll in a TextView (Android)

ObjectAnimator animator = ObjectAnimator.ofInt(scrollView, "scrollY", targetYScroll )
//This works by acceleration i.e start scrolling slowly before accelerating 
//then starts decelerating towards the end.. I need constant scrolling

IMHO this is good solution. Use LinearInterpolator for linear scroll speed

animator.setInterpolator(new LinearInterpolator());

Android automatic horizontally scrolling TextView

If you don't need to sub-class the TextView, you can try this in your layout file:

    <TextView
        android:text="Single-line text view that scrolls automatically if the text is too long to fit in the widget" 
        android:singleLine="true"
        android:ellipsize="marquee"
        android:marqueeRepeatLimit ="marquee_forever"
        android:focusable="true"
        android:focusableInTouchMode="true" 
        android:scrollHorizontally="true"
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content"/>

Also, in your code use the following:

findViewById(R.id.serviceColorCode).setSelected(true);

[Answer edited based on comments]

How to get the Android TextView to scroll down to the end automatically?

EDIT:
Use this:

    final ScrollView scroller = (ScrollView) findViewById(R.id.scroller);
    scroller.setOnFocusChangeListener(new OnFocusChangeListener() {

        @Override
        public void onFocusChange(View v, boolean hasFocus) {
            if (hasFocus) {
                scroller.fullScroll(View.FOCUS_DOWN);
            }
        }
    });

How to display multiple lines of text with scrolling in android?

You can limit the Height of TextView to match the number of lines you user wants to see, then simply put your TextView in a ScrollView

I had done a simple example to demonstrate this...

<ScrollView android:layout_height="30dp"
        android:layout_width="match_parent">
<TextView 
    android:layout_width="match_parent"
    android:layout_height="30dp"
    android:textSize="16sp"
    android:id="@+id/tv1"
    />
</ScrollView>

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