19 import static com.android.internal.widget.RecyclerView.NO_POSITION;
31 import com.android.internal.widget.RecyclerView.LayoutParams;
37  * A {@link com.android.internal.widget.RecyclerView.LayoutManager} implementation which provides
40 public class LinearLayoutManager extends RecyclerView.LayoutManager implements
41         ItemTouchHelper.ViewDropHandler, RecyclerView.SmoothScroller.ScrollVectorProvider {
98      * {@link #onLayoutChildren(RecyclerView.Recycler, RecyclerView.State)} is run.
169      * Constructor used when layout manager is set in XML by RecyclerView attribute
196      * RecyclerView.
199      * RecyclerView.
207      * RecyclerView.
209      * If you are using a {@link RecyclerView.RecycledViewPool}, it might be a good idea to set
213      * Note that, setting this flag will result in a performance drop if RecyclerView
223     public void onDetachedFromWindow(RecyclerView view, RecyclerView.Recycler recycler) {
371      * When set to true, If {@link com.android.internal.widget.RecyclerView} is LTR, than it will
372      * layout from RTL, if {@link com.android.internal.widget.RecyclerView}} is RTL, it will layout
429     protected int getExtraLayoutSpace(RecyclerView.State state) {
438     public void smoothScrollToPosition(RecyclerView recyclerView, RecyclerView.State state,
464     public void onLayoutChildren(RecyclerView.Recycler recycler, RecyclerView.State state) {
646     public void onLayoutCompleted(RecyclerView.State state) {
663     void onAnchorReady(RecyclerView.Recycler recycler, RecyclerView.State state,
670     private void layoutForPredictiveAnimations(RecyclerView.Recycler recycler,
671             RecyclerView.State state, int startOffset,  int endOffset) {
682         final List<RecyclerView.ViewHolder> scrapList = recycler.getScrapList();
686             RecyclerView.ViewHolder scrap = scrapList.get(i);
725     private void updateAnchorInfoForLayout(RecyclerView.Recycler recycler, RecyclerView.State state,
753     private boolean updateAnchorFromChildren(RecyclerView.Recycler recycler,
754             RecyclerView.State state, AnchorInfo anchorInfo) {
795     private boolean updateAnchorFromPendingData(RecyclerView.State state, AnchorInfo anchorInfo) {
880     private int fixLayoutEndGap(int endOffset, RecyclerView.Recycler recycler,
881             RecyclerView.State state, boolean canOffsetChildren) {
905     private int fixLayoutStartGap(int startOffset, RecyclerView.Recycler recycler,
906             RecyclerView.State state, boolean canOffsetChildren) {
979      * <p>Scroll the RecyclerView to make the position visible.</p>
981      * <p>RecyclerView will scroll the minimum amount that is necessary to make the
1009      * <code>item[10]</code>'s bottom is 20 pixels above the RecyclerView's bottom.
1017      *                 start edge of the RecyclerView.
1035     public int scrollHorizontallyBy(int dx, RecyclerView.Recycler recycler,
1036             RecyclerView.State state) {
1047     public int scrollVerticallyBy(int dy, RecyclerView.Recycler recycler,
1048             RecyclerView.State state) {
1056     public int computeHorizontalScrollOffset(RecyclerView.State state) {
1061     public int computeVerticalScrollOffset(RecyclerView.State state) {
1066     public int computeHorizontalScrollExtent(RecyclerView.State state) {
1071     public int computeVerticalScrollExtent(RecyclerView.State state) {
1076     public int computeHorizontalScrollRange(RecyclerView.State state) {
1081     public int computeVerticalScrollRange(RecyclerView.State state) {
1085     private int computeScrollOffset(RecyclerView.State state) {
1096     private int computeScrollExtent(RecyclerView.State state) {
1107     private int computeScrollRange(RecyclerView.State state) {
1151             boolean canUseExistingSpace, RecyclerView.State state) {
1192     void collectPrefetchPositionsForLayoutState(RecyclerView.State state, LayoutState layoutState,
1236      * how many inner items should be prefetched when this LayoutManager's RecyclerView
1237      * is nested inside another RecyclerView.
1240      * first scrolled into the viewport. RecyclerView will attempt to prefetch that number of items
1241      * so they are ready, avoiding jank as the inner RecyclerView is scrolled into the viewport.</p>
1243      * <p>For example, take a vertically scrolling RecyclerView with horizontally scrolling inner
1245      * <code>4</code> to this method for each inner RecyclerView's LinearLayoutManager will enable
1246      * RecyclerView's prefetching feature to do create/bind work for 4 views within a row early,
1249      * <p>Calling this method does nothing unless the LayoutManager is in a RecyclerView
1250      * nested in another RecyclerView.</p>
1269      * how many inner items should be prefetched when this LayoutManager's RecyclerView
1270      * is nested inside another RecyclerView.
1283     public void collectAdjacentPrefetchPositions(int dx, int dy, RecyclerView.State state,
1297     int scrollBy(int dy, RecyclerView.Recycler recycler, RecyclerView.State state) {
1336     private void recycleChildren(RecyclerView.Recycler recycler, int startIndex, int endIndex) {
1359      * @param recycler Recycler instance of {@link com.android.internal.widget.RecyclerView}
1364     private void recycleViewsFromStart(RecyclerView.Recycler recycler, int dt) {
1404      * @param recycler Recycler instance of {@link com.android.internal.widget.RecyclerView}
1409     private void recycleViewsFromEnd(RecyclerView.Recycler recycler, int dt) {
1445      * @param recycler    Current recycler that is attached to RecyclerView
1449      * @see #recycleViewsFromStart(com.android.internal.widget.RecyclerView.Recycler, int)
1450      * @see #recycleViewsFromEnd(com.android.internal.widget.RecyclerView.Recycler, int)
1453     private void recycleByLayoutState(RecyclerView.Recycler recycler, LayoutState layoutState) {
1469      * @param recycler        Current recycler that is attached to RecyclerView
1471      * @param state           Context passed by the RecyclerView to control scroll steps.
1475     int fill(RecyclerView.Recycler recycler, LayoutState layoutState,
1476             RecyclerView.State state, boolean stopOnFocusable) {
1525     void layoutChunk(RecyclerView.Recycler recycler, RecyclerView.State state,
1721     private View findReferenceChildClosestToEnd(RecyclerView.Recycler recycler,
1722             RecyclerView.State state) {
1738     private View findReferenceChildClosestToStart(RecyclerView.Recycler recycler,
1739             RecyclerView.State state) {
1744     private View findFirstReferenceChild(RecyclerView.Recycler recycler, RecyclerView.State state) {
1748     private View findLastReferenceChild(RecyclerView.Recycler recycler, RecyclerView.State state) {
1753     View findReferenceChild(RecyclerView.Recycler recycler, RecyclerView.State state,
1790      * If RecyclerView has item decorators, they will be considered in calculations as well.
1795      * @return The adapter position of the first visible item or {@link RecyclerView#NO_POSITION} if
1813      * {@link RecyclerView#NO_POSITION} if there aren't any visible items.
1830      * If RecyclerView has item decorators, they will be considered in calculations as well.
1835      * @return The adapter position of the last visible view or {@link RecyclerView#NO_POSITION} if
1853      * {@link RecyclerView#NO_POSITION} if there aren't any visible items.
1890             RecyclerView.Recycler recycler, RecyclerView.State state) {
2102          * Equal to {@link RecyclerView.State#isPreLayout()}. When consuming scrap, if this value
2109          * The most recent {@link #scrollBy(int, RecyclerView.Recycler, RecyclerView.State)}
2118         List<RecyclerView.ViewHolder> mScrapList = null;
2128         boolean hasMore(RecyclerView.State state) {
2138         View next(RecyclerView.Recycler recycler) {
2301          * assigns anchor coordinate from the RecyclerView's padding depending on current
2320         boolean isViewValidAsAnchor(View child, RecyclerView.State state) {

Indexes created Sun Sep 10 09:05:34 CEST 2017