File	Doc	Category	Size	Date	Package
SimpleCursorTreeAdapter.java	API Doc	Android 1.5 API	11621	Wed May 06 22:41:56 BST 2009	android.widget

SimpleCursorTreeAdapter

• java.lang.Object
  • ResourceCursorTreeAdapter

Fields Summary
private int[]	mGroupFrom The indices of columns that contain data to display for a group.
private int[]	mGroupTo The View IDs that will display a group's data fetched from the corresponding column.
private int[]	mChildFrom The indices of columns that contain data to display for a child.
private int[]	mChildTo The View IDs that will display a child's data fetched from the corresponding column.

Constructors Summary
public SimpleCursorTreeAdapter(android.content.Context context, android.database.Cursor cursor, int collapsedGroupLayout, int expandedGroupLayout, String[] groupFrom, int[] groupTo, int childLayout, int lastChildLayout, String[] childFrom, int[] childTo) Constructor. param context The context where the {@link ExpandableListView} associated with this {@link SimpleCursorTreeAdapter} is running param cursor The database cursor param collapsedGroupLayout The resource identifier of a layout file that defines the views for a collapsed group. The layout file should include at least those named views defined in groupTo. param expandedGroupLayout The resource identifier of a layout file that defines the views for an expanded group. The layout file should include at least those named views defined in groupTo. param groupFrom A list of column names that will be used to display the data for a group. param groupTo The group views (from the group layouts) that should display column in the "from" parameter. These should all be TextViews or ImageViews. The first N views in this list are given the values of the first N columns in the from parameter. param childLayout The resource identifier of a layout file that defines the views for a child (except the last). The layout file should include at least those named views defined in childTo. param lastChildLayout The resource identifier of a layout file that defines the views for the last child within a group. The layout file should include at least those named views defined in childTo. param childFrom A list of column names that will be used to display the data for a child. param childTo The child views (from the child layouts) that should display column in the "from" parameter. These should all be TextViews or ImageViews. The first N views in this list are given the values of the first N columns in the from parameter. super(context, cursor, collapsedGroupLayout, expandedGroupLayout, childLayout, lastChildLayout); init(groupFrom, groupTo, childFrom, childTo);
public SimpleCursorTreeAdapter(android.content.Context context, android.database.Cursor cursor, int collapsedGroupLayout, int expandedGroupLayout, String[] groupFrom, int[] groupTo, int childLayout, String[] childFrom, int[] childTo) Constructor. param context The context where the {@link ExpandableListView} associated with this {@link SimpleCursorTreeAdapter} is running param cursor The database cursor param collapsedGroupLayout The resource identifier of a layout file that defines the views for a collapsed group. The layout file should include at least those named views defined in groupTo. param expandedGroupLayout The resource identifier of a layout file that defines the views for an expanded group. The layout file should include at least those named views defined in groupTo. param groupFrom A list of column names that will be used to display the data for a group. param groupTo The group views (from the group layouts) that should display column in the "from" parameter. These should all be TextViews or ImageViews. The first N views in this list are given the values of the first N columns in the from parameter. param childLayout The resource identifier of a layout file that defines the views for a child. The layout file should include at least those named views defined in childTo. param childFrom A list of column names that will be used to display the data for a child. param childTo The child views (from the child layouts) that should display column in the "from" parameter. These should all be TextViews or ImageViews. The first N views in this list are given the values of the first N columns in the from parameter. super(context, cursor, collapsedGroupLayout, expandedGroupLayout, childLayout); init(groupFrom, groupTo, childFrom, childTo);
public SimpleCursorTreeAdapter(android.content.Context context, android.database.Cursor cursor, int groupLayout, String[] groupFrom, int[] groupTo, int childLayout, String[] childFrom, int[] childTo) Constructor. param context The context where the {@link ExpandableListView} associated with this {@link SimpleCursorTreeAdapter} is running param cursor The database cursor param groupLayout The resource identifier of a layout file that defines the views for a group. The layout file should include at least those named views defined in groupTo. param groupFrom A list of column names that will be used to display the data for a group. param groupTo The group views (from the group layouts) that should display column in the "from" parameter. These should all be TextViews or ImageViews. The first N views in this list are given the values of the first N columns in the from parameter. param childLayout The resource identifier of a layout file that defines the views for a child. The layout file should include at least those named views defined in childTo. param childFrom A list of column names that will be used to display the data for a child. param childTo The child views (from the child layouts) that should display column in the "from" parameter. These should all be TextViews or ImageViews. The first N views in this list are given the values of the first N columns in the from parameter. super(context, cursor, groupLayout, childLayout); init(groupFrom, groupTo, childFrom, childTo);

Methods Summary
protected void	bindChildView(android.view.View view, android.content.Context context, android.database.Cursor cursor, boolean isLastChild) bindView(view, context, cursor, mChildFrom, mChildTo);
protected void	bindGroupView(android.view.View view, android.content.Context context, android.database.Cursor cursor, boolean isExpanded) bindView(view, context, cursor, mGroupFrom, mGroupTo);
private void	bindView(android.view.View view, android.content.Context context, android.database.Cursor cursor, int[] from, int[] to) for (int i = 0; i < to.length; i++) { View v = view.findViewById(to[i]); if (v != null) { String text = cursor.getString(from[i]); if (text == null) { text = ""; } if (v instanceof TextView) { ((TextView) v).setText(text); } else if (v instanceof ImageView) { setViewImage((ImageView) v, text); } else { throw new IllegalStateException("SimpleCursorAdapter can bind values only to" + " TextView and ImageView!"); } } }
private void	init(java.lang.String[] groupFromNames, int[] groupTo, java.lang.String[] childFromNames, int[] childTo) mGroupTo = groupTo; mChildTo = childTo; // Get the group cursor column indices, the child cursor column indices will come // when needed initGroupFromColumns(groupFromNames); // Get a temporary child cursor to init the column indices if (getGroupCount() > 0) { MyCursorHelper tmpCursorHelper = getChildrenCursorHelper(0, true); if (tmpCursorHelper != null) { initChildrenFromColumns(childFromNames, tmpCursorHelper.getCursor()); deactivateChildrenCursorHelper(0); } }
private void	initChildrenFromColumns(java.lang.String[] childFromNames, android.database.Cursor childCursor) mChildFrom = new int[childFromNames.length]; initFromColumns(childCursor, childFromNames, mChildFrom);
private void	initFromColumns(android.database.Cursor cursor, java.lang.String[] fromColumnNames, int[] fromColumns) for (int i = fromColumnNames.length - 1; i >= 0; i--) { fromColumns[i] = cursor.getColumnIndexOrThrow(fromColumnNames[i]); }
private void	initGroupFromColumns(java.lang.String[] groupFromNames) mGroupFrom = new int[groupFromNames.length]; initFromColumns(mGroupCursorHelper.getCursor(), groupFromNames, mGroupFrom);
protected void	setViewImage(ImageView v, java.lang.String value) Called by bindView() to set the image for an ImageView. By default, the value will be treated as a Uri. Intended to be overridden by Adapters that need to filter strings retrieved from the database. param v ImageView to receive an image param value the value retrieved from the cursor try { v.setImageResource(Integer.parseInt(value)); } catch (NumberFormatException nfe) { v.setImageURI(Uri.parse(value)); }