Examples with PositionMetadata android.widget.ExpandableListConnector.PositionMetadata used on opensource projects

Example 51 with PositionMetadata

use of android.widget.ExpandableListConnector.PositionMetadata in project android_frameworks_base by AOSPA.

the class ExpandableListView method setSelectedGroup.

/**
     * Sets the selection to the specified group.
     * @param groupPosition The position of the group that should be selected.
     */
public void setSelectedGroup(int groupPosition) {
    ExpandableListPosition elGroupPos = ExpandableListPosition.obtainGroupPosition(groupPosition);
    PositionMetadata pm = mConnector.getFlattenedPos(elGroupPos);
    elGroupPos.recycle();
    final int absoluteFlatPosition = getAbsoluteFlatPosition(pm.position.flatListPos);
    super.setSelection(absoluteFlatPosition);
    pm.recycle();
}

Example 52 with PositionMetadata

use of android.widget.ExpandableListConnector.PositionMetadata in project android_frameworks_base by AOSPA.

the class ExpandableListView method setSelectedChild.

/**
     * Sets the selection to the specified child. If the child is in a collapsed
     * group, the group will only be expanded and child subsequently selected if
     * shouldExpandGroup is set to true, otherwise the method will return false.
     * 
     * @param groupPosition The position of the group that contains the child.
     * @param childPosition The position of the child within the group.
     * @param shouldExpandGroup Whether the child's group should be expanded if
     *            it is collapsed.
     * @return Whether the selection was successfully set on the child.
     */
public boolean setSelectedChild(int groupPosition, int childPosition, boolean shouldExpandGroup) {
    ExpandableListPosition elChildPos = ExpandableListPosition.obtainChildPosition(groupPosition, childPosition);
    PositionMetadata flatChildPos = mConnector.getFlattenedPos(elChildPos);
    if (flatChildPos == null) {
        // Shouldn't expand the group, so return false for we didn't set the selection
        if (!shouldExpandGroup)
            return false;
        expandGroup(groupPosition);
        flatChildPos = mConnector.getFlattenedPos(elChildPos);
        // Sanity check
        if (flatChildPos == null) {
            throw new IllegalStateException("Could not find child");
        }
    }
    int absoluteFlatPosition = getAbsoluteFlatPosition(flatChildPos.position.flatListPos);
    super.setSelection(absoluteFlatPosition);
    elChildPos.recycle();
    flatChildPos.recycle();
    return true;
}

Example 53 with PositionMetadata

use of android.widget.ExpandableListConnector.PositionMetadata in project android_frameworks_base by ResurrectionRemix.

the class ExpandableListView method drawDivider.

@Override
void drawDivider(Canvas canvas, Rect bounds, int childIndex) {
    int flatListPosition = childIndex + mFirstPosition;
    // all items, then the item below it has to be a group)
    if (flatListPosition >= 0) {
        final int adjustedPosition = getFlatPositionForConnector(flatListPosition);
        PositionMetadata pos = mConnector.getUnflattenedPos(adjustedPosition);
        // If this item is a child, or it is a non-empty group that is expanded
        if ((pos.position.type == ExpandableListPosition.CHILD) || (pos.isExpanded() && pos.groupMetadata.lastChildFlPos != pos.groupMetadata.flPos)) {
            // These are the cases where we draw the child divider
            final Drawable divider = mChildDivider;
            divider.setBounds(bounds);
            divider.draw(canvas);
            pos.recycle();
            return;
        }
        pos.recycle();
    }
    // Otherwise draw the default divider
    super.drawDivider(canvas, bounds, flatListPosition);
}

Example 54 with PositionMetadata

use of android.widget.ExpandableListConnector.PositionMetadata in project android_frameworks_base by ResurrectionRemix.

the class ExpandableListView method handleItemClick.

/**
     * This will either expand/collapse groups (if a group was clicked) or pass
     * on the click to the proper child (if a child was clicked)
     * 
     * @param position The flat list position. This has already been factored to
     *            remove the header/footer.
     * @param id The ListAdapter ID, not the group or child ID.
     */
boolean handleItemClick(View v, int position, long id) {
    final PositionMetadata posMetadata = mConnector.getUnflattenedPos(position);
    id = getChildOrGroupId(posMetadata.position);
    boolean returnValue;
    if (posMetadata.position.type == ExpandableListPosition.GROUP) {
        /* It's a group click, so pass on event */
        if (mOnGroupClickListener != null) {
            if (mOnGroupClickListener.onGroupClick(this, v, posMetadata.position.groupPos, id)) {
                posMetadata.recycle();
                return true;
            }
        }
        if (posMetadata.isExpanded()) {
            /* Collapse it */
            mConnector.collapseGroup(posMetadata);
            playSoundEffect(SoundEffectConstants.CLICK);
            if (mOnGroupCollapseListener != null) {
                mOnGroupCollapseListener.onGroupCollapse(posMetadata.position.groupPos);
            }
        } else {
            /* Expand it */
            mConnector.expandGroup(posMetadata);
            playSoundEffect(SoundEffectConstants.CLICK);
            if (mOnGroupExpandListener != null) {
                mOnGroupExpandListener.onGroupExpand(posMetadata.position.groupPos);
            }
            final int groupPos = posMetadata.position.groupPos;
            final int groupFlatPos = posMetadata.position.flatListPos;
            final int shiftedGroupPosition = groupFlatPos + getHeaderViewsCount();
            smoothScrollToPosition(shiftedGroupPosition + mAdapter.getChildrenCount(groupPos), shiftedGroupPosition);
        }
        returnValue = true;
    } else {
        /* It's a child, so pass on event */
        if (mOnChildClickListener != null) {
            playSoundEffect(SoundEffectConstants.CLICK);
            return mOnChildClickListener.onChildClick(this, v, posMetadata.position.groupPos, posMetadata.position.childPos, id);
        }
        returnValue = false;
    }
    posMetadata.recycle();
    return returnValue;
}

Example 55 with PositionMetadata

use of android.widget.ExpandableListConnector.PositionMetadata in project android_frameworks_base by ResurrectionRemix.

the class ExpandableListView method createContextMenuInfo.

@Override
ContextMenuInfo createContextMenuInfo(View view, int flatListPosition, long id) {
    if (isHeaderOrFooterPosition(flatListPosition)) {
        // Return normal info for header/footer view context menus
        return new AdapterContextMenuInfo(view, flatListPosition, id);
    }
    final int adjustedPosition = getFlatPositionForConnector(flatListPosition);
    PositionMetadata pm = mConnector.getUnflattenedPos(adjustedPosition);
    ExpandableListPosition pos = pm.position;
    id = getChildOrGroupId(pos);
    long packedPosition = pos.getPackedPosition();
    pm.recycle();
    return new ExpandableListContextMenuInfo(view, packedPosition, id);
}