How to have Image and Text Center within a Button

Question

I want to display TEXT and Icon on a Button.

+----------------------------+
|          Icon TEXT         |
+---------------------         


        

Answer 1

This is what I did... It can be improved. The text is centered and the icon is to the left. So they both aren't centered as a group.

public class CustomButton extends Button
{
    Rect r = new Rect();
    private Drawable buttonIcon = null;
    private int textImageSeparation = 10;

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

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

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

    protected void onDraw(Canvas canvas)
    {
        super.onDraw(canvas);


        Drawable icon = getButtonIcon();
        if(icon != null)
        {
            int drawableHeight = icon.getIntrinsicHeight();
            int drawableWidth = icon.getIntrinsicWidth();
            if(icon instanceof BitmapDrawable)
            {
                Bitmap bitmap = ((BitmapDrawable)icon).getBitmap();
                drawableWidth = (int) AndroidScreenUtils.dipToPixels(bitmap.getWidth());
                drawableHeight = (int) AndroidScreenUtils.dipToPixels(bitmap.getHeight());
            }
            else
            {
                drawableWidth = (int) AndroidScreenUtils.dipToPixels(icon.getIntrinsicWidth());
                drawableHeight = (int) AndroidScreenUtils.dipToPixels(icon.getIntrinsicHeight());
            }
            float textWidth = getLayout().getPaint().measureText(getText().toString());
            float left = ((getWidth() - textWidth) / 2) - getTextImageSeparation() - drawableWidth;

            int height = getHeight();
            int top = (height - drawableHeight) /2;
            int right = (int) (left + drawableWidth);
            int bottom = top + drawableHeight;
            r.set((int) left, top, right, bottom);
            icon.setBounds(r);
            icon.draw(canvas);
        }
    }

    private Drawable getButtonIcon()
    {
        return buttonIcon;
    }

    public void setButtonIcon(Drawable buttonIcon)
    {
        this.buttonIcon = buttonIcon;
    }

    private int getTextImageSeparation()
    {
        return textImageSeparation;
    }

    public void setTextImageSeparation(int dips)
    {
        this.textImageSeparation = (int) AndroidScreenUtils.dipToPixels(dips);
    }



}