Keep text in TextView with drawableLeft centered

Question

In my app I have a header bar which consists of a single textview with fill_parent as width, which have a specific background color and some centered text. Now I want to add a d

Answer 1

Try flowing:

public class DrawableCenterTextView extends AppCompatTextView {

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

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

    public DrawableCenterTextView(Context context) {
        super(context);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        // We want the icon and/or text grouped together and centered as a group.
        // We need to accommodate any existing padding
        final float buttonContentWidth = getWidth() - getPaddingLeft() - getPaddingRight();

        float textWidth = 0f;
        final Layout layout = getLayout();
        if (layout != null) {
            for (int i = 0; i < layout.getLineCount(); i++) {
                textWidth = Math.max(textWidth, layout.getLineRight(i));
            }
        }

        // Compute left drawable width, if any
        Drawable[] drawables = getCompoundDrawables();
        Drawable drawableLeft = drawables[0];

        int drawableWidth = (drawableLeft != null) ? drawableLeft.getIntrinsicWidth() : 0;

        // We only count the drawable padding if there is both an icon and text
        int drawablePadding = ((textWidth > 0) && (drawableLeft != null)) ? getCompoundDrawablePadding() : 0;

        // Adjust contents to center
        float bodyWidth = textWidth + drawableWidth + drawablePadding;
        int translate = (int) ((buttonContentWidth - bodyWidth));
        if (translate != 0)
            setPadding(translate, 0, translate, 0);
        super.onDraw(canvas);
    }
}