[android-developers] Re: debug blues

This occurred on the Nexus 7 tablet, and the Android version was 4.2.1.

On Wednesday, January 9, 2013 7:46:34 PM UTC-6, RichardC wrote:

Emulator or Phone and what was the Android version running on it?

On Wednesday, January 9, 2013 10:40:27 PM UTC, bob wrote:

I'm stepping thru my source.

I have a call to invalidate().

I stepped into it, and attached the android source (version 16).

However, it went here:

    /**

     * Used to indicate that the parent of this view should be invalidated. This functionality

     * is used to force the parent to rebuild its display list (when hardware-accelerated),

     * which is necessary when various parent-managed properties of the view change, such as

     * alpha, translationX/Y, scrollX/Y, scaleX/Y, and rotation/X/Y. This method will propagate

     * an invalidation event to the parent.

     *

     * @hide

     */

    protected void invalidateParentIfNeeded() {

        if (isHardwareAccelerated() && mParent instanceof View) {

            ((View) mParent).invalidate(true);

        }

    }

Why did it go to the function invalidateParentIfNeeded() instead of the function invalidate()?

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