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Android Reference

SimpleAdapter


android.widget

Class SimpleAdapter

    • Constructor Detail

      • SimpleAdapter

        public SimpleAdapter(Context context,
                     List<? extends Map<String,?>> data,
                     int resource,
                     String[] from,
                     int[] to)
        Constructor
        Parameters:
        context - The context where the View associated with this SimpleAdapter is running
        data - A List of Maps. Each entry in the List corresponds to one row in the list. The Maps contain the data for each row, and should include all the entries specified in "from"
        resource - Resource identifier of a view layout that defines the views for this list item. The layout file should include at least those named views defined in "to"
        from - A list of column names that will be added to the Map associated with each item.
        to - The views that should display column in the "from" parameter. These should all be TextViews. The first N views in this list are given the values of the first N columns in the from parameter.
    • Method Detail

      • getCount

        public int getCount()
        Description copied from interface: Adapter
        How many items are in the data set represented by this Adapter.
        Specified by:
        getCount in interface Adapter
        Returns:
        Count of items.
        See Also:
        Adapter.getCount()
      • getItem

        public Object getItem(int position)
        Description copied from interface: Adapter
        Get the data item associated with the specified position in the data set.
        Specified by:
        getItem in interface Adapter
        Parameters:
        position - Position of the item whose data we want within the adapter's data set.
        Returns:
        The data at the specified position.
        See Also:
        Adapter.getItem(int)
      • getItemId

        public long getItemId(int position)
        Description copied from interface: Adapter
        Get the row id associated with the specified position in the list.
        Specified by:
        getItemId in interface Adapter
        Parameters:
        position - The position of the item within the adapter's data set whose row id we want.
        Returns:
        The id of the item at the specified position.
        See Also:
        Adapter.getItemId(int)
      • getView

        public View getView(int position,
                   View convertView,
                   ViewGroup parent)
        Description copied from interface: Adapter
        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 LayoutInflater.inflate(int, android.view.ViewGroup, boolean) to specify a root view and to prevent attachment to the root.
        Specified by:
        getView in interface Adapter
        Parameters:
        position - The position of the item within the adapter's data set of the item whose view we want.
        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 Adapter.getViewTypeCount() and Adapter.getItemViewType(int)).
        parent - The parent that this view will eventually be attached to
        Returns:
        A View corresponding to the data at the specified position.
        See Also:
        Adapter.getView(int, View, ViewGroup)
      • getDropDownView

        public View getDropDownView(int position,
                           View convertView,
                           ViewGroup parent)
        Description copied from interface: SpinnerAdapter

        Get a View that displays in the drop down popup the data at the specified position in the data set.

        Specified by:
        getDropDownView in interface SpinnerAdapter
        Overrides:
        getDropDownView in class BaseAdapter
        Parameters:
        position - index of the item whose view we want.
        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.
        parent - the parent that this view will eventually be attached to
        Returns:
        a View corresponding to the data at the specified position.
      • setViewBinder

        public void setViewBinder(SimpleAdapter.ViewBinder viewBinder)
        Sets the binder used to bind data to views.
        Parameters:
        viewBinder - the binder used to bind data to views, can be null to remove the existing binder
        See Also:
        getViewBinder()
      • setViewImage

        public void setViewImage(ImageView v,
                        int value)
        Called by bindView() to set the image for an ImageView but only if there is no existing ViewBinder or if the existing ViewBinder cannot handle binding to an ImageView. This method is called instead of setViewImage(ImageView, String) if the supplied data is an int or Integer.
        Parameters:
        v - ImageView to receive an image
        value - the value retrieved from the data set
        See Also:
        setViewImage(ImageView, String)
      • setViewImage

        public void setViewImage(ImageView v,
                        String value)
        Called by bindView() to set the image for an ImageView but only if there is no existing ViewBinder or if the existing ViewBinder cannot handle binding to an ImageView. By default, the value will be treated as an image resource. If the value cannot be used as an image resource, the value is used as an image Uri. This method is called instead of setViewImage(ImageView, int) if the supplied data is not an int or Integer.
        Parameters:
        v - ImageView to receive an image
        value - the value retrieved from the data set
        See Also:
        setViewImage(ImageView, int)
      • setViewText

        public void setViewText(TextView v,
                       String text)
        Called by bindView() to set the text for a TextView but only if there is no existing ViewBinder or if the existing ViewBinder cannot handle binding to a TextView.
        Parameters:
        v - TextView to receive text
        text - the text to be set for the TextView
      • getFilter

        public Filter getFilter()
        Description copied from interface: Filterable

        Returns a filter that can be used to constrain data with a filtering pattern.

        This method is usually implemented by Adapter classes.

        Specified by:
        getFilter in interface Filterable
        Returns:
        a filter used to constrain data


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