Fixes #1816088. Avoid initializing empty Rects when they are useless, especially in Zygote.

 * and Internationalization</a>.

 */

public abstract class Drawable {

    private static final Rect ZERO_BOUNDS_RECT = new Rect();

    private int[] mStateSet = StateSet.WILD_CARD;

    private int mLevel = 0;

    private int mChangingConfigurations = 0;

    private Rect mBounds = new Rect();

    private Rect mBounds = ZERO_BOUNDS_RECT;

    /*package*/ Callback mCallback = null;

    private boolean mVisible = true;

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

        Rect oldBounds = mBounds;

        if (oldBounds == ZERO_BOUNDS_RECT) {

            oldBounds = mBounds = new Rect();

        }

        if (oldBounds.left != left || oldBounds.top != top ||

                oldBounds.right != right || oldBounds.bottom != bottom) {

            mBounds.set(left, top, right, bottom);

     * Return a copy of the drawable's bounds in a new Rect. This returns the

     * same values as getBounds(), but the returned object is guaranteed to not

     * be changed later by the drawable (i.e. it retains no reference to this

     * rect). If the caller already has a Rect allocated, call copyBounds(rect)

     * rect). If the caller already has a Rect allocated, call copyBounds(rect).

     *

     * @return A copy of the drawable's bounds

     */

     * object may be the same object stored in the drawable (though this is not

     * guaranteed), so if a persistent copy of the bounds is needed, call

     * copyBounds(rect) instead.

     * You should also not change the object returned by this method as it may

     * be the same object stored in the drawable.

     *

     * @return The bounds of the drawable (which may change later, so caller

     *         beware).

     *         beware). DO NOT ALTER the returned object as it may change the

     *         stored bounds of this drawable.

     *

     * @see #copyBounds()

     * @see #copyBounds(android.graphics.Rect) 

     */

    public final Rect getBounds() {

        if (mBounds == ZERO_BOUNDS_RECT) {

            mBounds = new Rect();

        }

        return mBounds;

    }