Merge "Fix App flashes when keyboard height changes in split screen mode."

     * Adjusts the stack bounds if the IME is visible.

     *

     * @param imeWin The IME window.

     * @param keepLastAmount Use {@code true} to keep the last adjusted amount from

     *                       {@link DockedStackDividerController} for adjusting the stack bounds,

     *                       Use {@code false} to reset adjusted amount as 0.

     * @see #updateAdjustForIme(float, float, boolean)

     */

    void setAdjustedForIme(WindowState imeWin, boolean forceUpdate) {

    void setAdjustedForIme(WindowState imeWin, boolean keepLastAmount) {

        mImeWin = imeWin;

        mImeGoingAway = false;

        if (!mAdjustedForIme || forceUpdate) {

        if (!mAdjustedForIme || keepLastAmount) {

            mAdjustedForIme = true;

            mAdjustImeAmount = 0f;

            mAdjustDividerAmount = 0f;

            updateAdjustForIme(0f, 0f, true /* force */);

            DockedStackDividerController controller = getDisplayContent().mDividerControllerLocked;

            final float adjustImeAmount = keepLastAmount ? controller.mLastAnimationProgress : 0f;

            final float adjustDividerAmount = keepLastAmount ? controller.mLastDividerProgress : 0f;

            updateAdjustForIme(adjustImeAmount, adjustDividerAmount, true /* force */);

        }

    }