Can´t center textview´s text vertically

Question

[Solved] I had to add android:fillViewport=\"true\" to the ScrollView, that fixed the problem with the text not centering vertically.

I know this has been

Answer 1

for others that have this problem there is a bug in Relative Layouts after api 18 see https://code.google.com/p/android/issues/detail?id=59368

a fix that worked for me was to replace my relative layout with this code (found in the above link)

DISCLAIMER : this only worked in one specific situation. It failed horrible in another. Feel free to try it out if you want

public class FixRelativeLayoutBug extends RelativeLayout {
    public FixRelativeLayoutBug(Context context) {
        super(context);
    }

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

    public FixRelativeLayoutBug(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    private static final int AT_MOST_UNSPECIFIED = MeasureSpec.makeMeasureSpec((1<<30)-1, MeasureSpec.AT_MOST);

    @Override
    protected void onMeasure(int widthSpec, int heightSpec)
    {
        // RelativeLayout has bugs when measured in UNSPECIFIED height mode that were supposedly fixed
        // in API 18. However the 'fix' does not work with breaks gravity == center_vertical in TextView.
        // https://code.google.com/p/android/issues/detail?id=63673
        if (MeasureSpec.getMode(heightSpec) == MeasureSpec.UNSPECIFIED) heightSpec = AT_MOST_UNSPECIFIED;
        super.onMeasure(widthSpec, heightSpec);
    }
}