org.oscim.layers.marker

Class MarkerLayer<Item extends MarkerInterface>

java.lang.Object

org.oscim.layers.Layer

org.oscim.layers.marker.MarkerLayer<Item>

Direct Known Subclasses:

ItemizedLayer

public abstract class MarkerLayer<Item extends MarkerInterface>
extends Layer

Draws a list of MarkerInterface as markers to a map. The item with the lowest index is drawn as last and therefore the 'topmost' marker. It also gets checked for onTap first. This class is generic, because you then you get your custom item-class passed back in onTap(). << TODO

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	MarkerLayer.Snappable TODO Interface definition for overlays that contain items that can be snapped to (for example, when the user invokes a zoom, this could be called allowing the user to snap the zoom to an interesting point.)

Field Summary

Fields

Modifier and Type	Field and Description
protected Item	mFocusedItem
protected MarkerRenderer	mMarkerRenderer

Fields inherited from class org.oscim.layers.Layer

mMap, mRenderer

Constructor Summary

Constructors

Constructor and Description
MarkerLayer(Map map, MarkerRendererFactory markerRendererFactory)
MarkerLayer(Map map, MarkerSymbol defaultSymbol)

Method Summary

Modifier and Type	Method and Description
protected abstract Item	createItem(int i) Method by which subclasses create the actual Items.
Item	getFocus()
void	populate() Utility method to perform all processing on a new ItemizedOverlay.
void	setFocus(Item item) TODO If the given Item is found in the overlay, force it to be the current focus-bearer.
abstract int	size() The number of items in this overlay.

Methods inherited from class org.oscim.layers.Layer

getRenderer, isEnabled, map, onDetach, setEnabled

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

mMarkerRenderer

protected final MarkerRenderer mMarkerRenderer

mFocusedItem

protected Item extends MarkerInterface mFocusedItem

Constructor Detail

MarkerLayer

public MarkerLayer(Map map,
                   MarkerSymbol defaultSymbol)

MarkerLayer

public MarkerLayer(Map map,
                   MarkerRendererFactory markerRendererFactory)

Method Detail

createItem

protected abstract Item createItem(int i)

Method by which subclasses create the actual Items. This will only be called from populate() we'll cache them for later use.

size

public abstract int size()

The number of items in this overlay.

populate

public final void populate()

Utility method to perform all processing on a new ItemizedOverlay. Subclasses provide Items through the createItem(int) method. The subclass should call this as soon as it has data, before anything else gets called.

setFocus

public void setFocus(Item item)

TODO If the given Item is found in the overlay, force it to be the current focus-bearer. Any registered {link ItemizedLayer#OnFocusChangeListener} will be notified. This does not move the map, so if the Item isn't already centered, the user may get confused. If the Item is not found, this is a no-op. You can also pass null to remove focus.

Parameters:

item -

getFocus

public Item getFocus()

Returns:

the currently-focused item, or null if no item is currently focused.