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

Example 21 with PositionMetadata

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

the class ExpandableListView method getFlatListPosition.

/**
     * Converts a group and/or child position to a flat list position. This is
     * useful in situations where the caller needs to use the underlying
     * {@link ListView}'s methods.
     * 
     * @param packedPosition The group and/or child positions to be converted in
     *            packed position representation. Use
     *            {@link #getPackedPositionForChild(int, int)} or
     *            {@link #getPackedPositionForGroup(int)}.
     * @return The flat list position for the given child or group.
     */
public int getFlatListPosition(long packedPosition) {
    ExpandableListPosition elPackedPos = ExpandableListPosition.obtainPosition(packedPosition);
    PositionMetadata pm = mConnector.getFlattenedPos(elPackedPos);
    elPackedPos.recycle();
    final int flatListPosition = pm.position.flatListPos;
    pm.recycle();
    return getAbsoluteFlatPosition(flatListPosition);
}

Example 22 with PositionMetadata

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

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 23 with PositionMetadata

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

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 24 with PositionMetadata

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

the class ExpandableListView method getExpandableListPosition.

/**
     * Converts a flat list position (the raw position of an item (child or group)
     * in the list) to a group and/or child position (represented in a
     * packed position). This is useful in situations where the caller needs to
     * use the underlying {@link ListView}'s methods. Use
     * {@link ExpandableListView#getPackedPositionType} ,
     * {@link ExpandableListView#getPackedPositionChild},
     * {@link ExpandableListView#getPackedPositionGroup} to unpack.
     * 
     * @param flatListPosition The flat list position to be converted.
     * @return The group and/or child position for the given flat list position
     *         in packed position representation. #PACKED_POSITION_VALUE_NULL if
     *         the position corresponds to a header or a footer item.
     */
public long getExpandableListPosition(int flatListPosition) {
    if (isHeaderOrFooterPosition(flatListPosition)) {
        return PACKED_POSITION_VALUE_NULL;
    }
    final int adjustedPosition = getFlatPositionForConnector(flatListPosition);
    PositionMetadata pm = mConnector.getUnflattenedPos(adjustedPosition);
    long packedPos = pm.position.getPackedPosition();
    pm.recycle();
    return packedPos;
}

Example 25 with PositionMetadata

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

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;
}