File	Doc	Category	Size	Date	Package
Adapter.java	API Doc	Android 5.1 API	6047	Thu Mar 12 22:22:10 GMT 2015	android.widget

Adapter

Fields Summary
static final int	IGNORE_ITEM_VIEW_TYPE An item view type that causes the {@link AdapterView} to ignore the item view. For example, this can be used if the client does not want a particular view to be given for conversion in {@link #getView(int, View, ViewGroup)}.
static final int	NO_SELECTION

Constructors Summary

Methods Summary
public int	getCount() How many items are in the data set represented by this Adapter. return Count of items.
public java.lang.Object	getItem(int position) Get the data item associated with the specified position in the data set. param position Position of the item whose data we want within the adapter's data set. return The data at the specified position.
public long	getItemId(int position) Get the row id associated with the specified position in the list. param position The position of the item within the adapter's data set whose row id we want. return The id of the item at the specified position.
public int	getItemViewType(int position) Get the type of View that will be created by {@link #getView} for the specified item. param position The position of the item within the adapter's data set whose view type we want. return An integer representing the type of View. Two views should share the same type if one can be converted to the other in {@link #getView}. Note: Integers must be in the range 0 to {@link #getViewTypeCount} - 1. {@link #IGNORE_ITEM_VIEW_TYPE} can also be returned. see #IGNORE_ITEM_VIEW_TYPE
public android.view.View	getView(int position, android.view.View convertView, android.view.ViewGroup parent) Get a View that displays the data at the specified position in the data set. You can either create a View manually or inflate it from an XML layout file. When the View is inflated, the parent View (GridView, ListView...) will apply default layout parameters unless you use {@link android.view.LayoutInflater#inflate(int, android.view.ViewGroup, boolean)} to specify a root view and to prevent attachment to the root. param position The position of the item within the adapter's data set of the item whose view we want. param convertView The old view to reuse, if possible. Note: You should check that this view is non-null and of an appropriate type before using. If it is not possible to convert this view to display the correct data, this method can create a new view. Heterogeneous lists can specify their number of view types, so that this View is always of the right type (see {@link #getViewTypeCount()} and {@link #getItemViewType(int)}). param parent The parent that this view will eventually be attached to return A View corresponding to the data at the specified position.
public int	getViewTypeCount() Returns the number of types of Views that will be created by {@link #getView}. Each type represents a set of views that can be converted in {@link #getView}. If the adapter always returns the same type of View for all items, this method should return 1. This method will only be called when when the adapter is set on the the {@link AdapterView}. return The number of types of Views that will be created by this adapter
public boolean	hasStableIds() Indicates whether the item ids are stable across changes to the underlying data. return True if the same id always refers to the same object.
public boolean	isEmpty() return true if this adapter doesn't contain any data. This is used to determine whether the empty view should be displayed. A typical implementation will return getCount() == 0 but since getCount() includes the headers and footers, specialized adapters might want a different behavior.
public void	registerDataSetObserver(android.database.DataSetObserver observer) Register an observer that is called when changes happen to the data used by this adapter. param observer the object that gets notified when the data set changes.
public void	unregisterDataSetObserver(android.database.DataSetObserver observer) Unregister an observer that has previously been registered with this adapter via {@link #registerDataSetObserver}. param observer the object to unregister.