Merge "Annotate com.android.systemui.qs with @Nullable"

        public Supplier<Icon> iconSupplier;

        public int state = DEFAULT_STATE;

        public CharSequence label;

        public CharSequence secondaryLabel;

        @Nullable public CharSequence secondaryLabel;

        public CharSequence contentDescription;

        public CharSequence stateDescription;

        @Nullable public CharSequence stateDescription;

        public CharSequence dualLabelContentDescription;

        public boolean disabledByPolicy;

        public boolean dualTarget = false;

        public SlashState slash;

        public boolean handlesLongClick = true;

        public boolean showRippleEffect = true;

        @Nullable

        public Drawable sideViewCustomDrawable;

        public String spec;

    private final int mItemSize;

    private final Handler mHandler;

    @Nullable

    private ListAdapter mAdapter;

    private int mCount;

    private boolean mEnableAutoSizing;

import android.view.animation.OvershootInterpolator;

import android.widget.Scroller;

import androidx.annotation.Nullable;

import androidx.viewpager.widget.PagerAdapter;

import androidx.viewpager.widget.ViewPager;

    private final ArrayList<TileRecord> mTiles = new ArrayList<>();

    private final ArrayList<TileLayout> mPages = new ArrayList<>();

    @Nullable

    private PageIndicator mPageIndicator;

    private float mPageIndicatorPosition;

    @Nullable

    private PageListener mPageListener;

    private boolean mListening;

    private Scroller mScroller;

    @Nullable

    private AnimatorSet mBounceAnimatorSet;

    private float mLastExpansion;

    private boolean mDistributeTiles = false;

import android.view.View.OnAttachStateChangeListener;

import android.view.View.OnLayoutChangeListener;

import androidx.annotation.Nullable;

import com.android.systemui.dagger.qualifiers.Main;

import com.android.systemui.plugins.qs.QS;

import com.android.systemui.plugins.qs.QSTile;

    private final View mQSFooterActions;

    private final View mQQSFooterActions;

    @Nullable

    private PagedTileLayout mPagedLayout;

    private boolean mOnFirstPage = true;

    private final QSExpansionPathInterpolator mQSExpansionPathInterpolator;

    // Animator for elements in the first page, including secondary labels and qqs brightness

    // slider, as well as animating the alpha of the QS tile layout (as we are tracking QQS tiles)

    @Nullable

    private TouchAnimator mFirstPageAnimator;

    // TranslationX animator for QQS/QS tiles

    private TouchAnimator mTranslationXAnimator;

    // This animates fading of SecurityFooter and media divider

    private TouchAnimator mAllPagesDelayedAnimator;

    // Animator for brightness slider(s)

    @Nullable

    private TouchAnimator mBrightnessAnimator;

    // Animator for Footer actions in QQS

    private TouchAnimator mQQSFooterActionsAnimator;

    // Height animator for QQS tiles (height changing from QQS size to QS size)

    @Nullable

    private HeightExpansionAnimator mQQSTileHeightAnimator;

    // Height animator for QS tile in first page but not in QQS, to present the illusion that they

    // are expanding alongside the QQS tiles

    @Nullable

    private HeightExpansionAnimator mOtherFirstPageTilesHeightAnimator;

    // Pair of animators for each non first page. The creation is delayed until the user first

    // scrolls to that page, in order to get the proper measures and layout.

    }

    @Override

    public void onViewAttachedToWindow(View v) {

    public void onViewAttachedToWindow(@Nullable View v) {

        mTunerService.addTunable(this, ALLOW_FANCY_ANIMATION,

                MOVE_FULL_ROWS);

    }

    protected TextView mDetailDoneButton;

    @VisibleForTesting

    QSDetailClipper mClipper;

    @Nullable

    private DetailAdapter mDetailAdapter;

    private QSPanelController mQsPanelController;

    protected View mQsDetailHeader;

    protected TextView mQsDetailHeaderTitle;

    private ViewStub mQsDetailHeaderSwitchStub;

    @Nullable

    private Switch mQsDetailHeaderSwitch;

    protected ImageView mQsDetailHeaderProgress;

    @Nullable

    protected QSTileHost mHost;

    private boolean mScanState;

    private boolean mSwitchState;

    private QSFooter mFooter;

    @Nullable

    private QSContainerController mQsContainerController;

    public QSDetail(Context context, @Nullable AttributeSet attrs) {

    }

    public interface Callback {

        void onShowingDetail(DetailAdapter detail, int x, int y);

        /** Handle an event of showing detail. */

        void onShowingDetail(@Nullable DetailAdapter detail, int x, int y);

        void onToggleStateChanged(boolean state);

        void onScanStateChanged(boolean state);

    }

    public void handleShowingDetail(final DetailAdapter adapter, int x, int y,

    /** Handle an event of showing detail. */

    public void handleShowingDetail(final @Nullable DetailAdapter adapter, int x, int y,

            boolean toggleQs) {

        final boolean showingDetail = adapter != null;

        final boolean wasShowingDetail = mDetailAdapter != null;

        }

        @Override

        public void onShowingDetail(final DetailAdapter detail, final int x, final int y) {

        public void onShowingDetail(

                final @Nullable DetailAdapter detail, final int x, final int y) {

            post(new Runnable() {

                @Override

                public void run() {