android - How do I completely prevent a TextView from scrolling?

Question

I have a TextView with a lot of text. This TextView has maxLines set, so it only shows the first 8 or so lines. I also have a "Read More" button so I handle expanding the TextView on my own.

My problem is that sometimes the TextView scrolls a little (just half a line at a time), even though I never specified any scroll bars. This issue is made worse because the TextView is inside a ListView, so when the user scrolls the main ListView, the TextView sometimes scrolls a little, like this:

How do I prevent the TextView from scrolling?

Answer 1

I have the same problem,My solution is create a NoScrollTextView extends TextView like this

 public class NoScrollTextView extends TextView {
    public NoScrollTextView(Context context) {
        super(context);
    }

    public NoScrollTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public NoScrollTextView(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
    }

    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    public NoScrollTextView(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
    }

    @Override
    public void scrollTo(int x, int y) {
        //do nothing
    }
}

set scrollTo do nothing

In Kotlin:

class NonScrollingTextView : TextView {
    constructor(context: Context) : super(context) {}
    constructor(context: Context, attrs: AttributeSet) : super(context, attrs) {}
    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int) : super(context, attrs, defStyleAttr) {}
    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
    constructor(context: Context, attrs: AttributeSet, defStyleAttr: Int, defStyleRes: Int) : super(context, attrs, defStyleAttr, defStyleRes) {
    }

    override fun scrollTo(x: Int, y: Int) {
        //do nothing
    }
}