Use drawLines to draw the outline of the WebTextView.

     * Private class used for the background of a password textfield.

     */

    private static class OutlineDrawable extends Drawable {

        private Paint mBackgroundPaint;

        private Paint mOutlinePaint;

        private float[] mLines;

        public OutlineDrawable() {

            mBackgroundPaint = new Paint(Paint.ANTI_ALIAS_FLAG);

            mBackgroundPaint.setColor(Color.WHITE);

            mOutlinePaint = new Paint(Paint.ANTI_ALIAS_FLAG);

            mOutlinePaint.setColor(Color.BLACK);

            mOutlinePaint.setStyle(Paint.Style.STROKE);

            mLines = new float[16];

        }

        @Override

        public void setBounds(int left, int top, int right, int bottom) {

            super.setBounds(left, top, right, bottom);

            // Top line

            mLines[0] = left;

            mLines[1] = top + 1;

            mLines[2] = right;

            mLines[3] = top + 1;

            // Right line

            mLines[4] = right;

            mLines[5] = top;

            mLines[6] = right;

            mLines[7] = bottom;

            // Bottom line

            mLines[8] = left;

            mLines[9] = bottom;

            mLines[10] = right;

            mLines[11] = bottom;

            // Left line

            mLines[12] = left + 1;

            mLines[13] = top;

            mLines[14] = left + 1;

            mLines[15] = bottom;

        }

        @Override

        public void draw(Canvas canvas) {

            Rect bounds = getBounds();

            Paint paint = new Paint();

            paint.setAntiAlias(true);

            // Draw the background.

            paint.setColor(Color.WHITE);

            canvas.drawRect(bounds, paint);

            canvas.drawRect(getBounds(), mBackgroundPaint);

            // Draw the outline.

            paint.setStyle(Paint.Style.STROKE);

            paint.setColor(Color.BLACK);

            canvas.drawRect(bounds, paint);

            canvas.drawLines(mLines, mOutlinePaint);

        }

        // Always want it to be opaque.

        @Override

        public int getOpacity() {

            return PixelFormat.OPAQUE;

        }

        // These are needed because they are abstract in Drawable.

        @Override

        public void setAlpha(int alpha) { }

        @Override

        public void setColorFilter(ColorFilter cf) { }

    }