ImageManager

    public final class ImageManager

    This class is used to load images from the network and handles local caching for you.

    Summary

    Nested types

    Listener interface for handling when the image for a particular URI has been loaded.

    Public methods
    static ImageManager
    create ( Context  context)

    Returns a new ImageManager for loading images from the network.
    void
    loadImage ( ImageView  imageView, int resId)

    Loads an image to display from the given resource ID.
    void
    loadImage ( ImageView  imageView,  Uri  uri)

    Loads an image to display from a URI.
    void

    Load an image to display from a URI.
    void
    loadImage ( ImageView  imageView,  Uri  uri, int defaultResId)

    Loads an image to display from a URI, using the given resource ID as the default if no image is found for the given URI.
    void
    loadImage (
    ImageManager.OnImageLoadedListener  listener,
    Uri  uri,
        int defaultResId
    )

    Load an image to display from a URI, using the given resource ID as the default if no image is found for the given URI.

    Public methods

    create

    public static  ImageManager 
 create 
( Context 
 context)

    Returns a new ImageManager for loading images from the network.

    Parameters
    Context  context

    The context used by the ImageManager.
    Returns
    ImageManager

    A new ImageManager.

    loadImage

    public void  loadImage 
( ImageView 
 imageView, int resId)

    Loads an image to display from the given resource ID.

    If you also use ImageManager s for Views hosted in a ListAdapter (or any other class that recycles Views instances), then this call should be used rather than setting the resource directly. This avoids clobbering images when views are recycled.

    Parameters
    ImageView  imageView

    The image view to populate with the image.
    int resId

    Resource ID to use for the image.

    loadImage

    public void  loadImage 
( ImageView 
 imageView,  Uri 
 uri)

    Loads an image to display from a URI. Note that this does not support arbitrary URIs - the URI must be something that was retrieved from another call to Google Play services.

    The image view will be cleared out (the drawable set to null) if the image needs to be loaded asynchronously.

    The result (if non-null) is set on the given image view on the main thread.

    Note that if the ImageView used for this call is hosted in a ListAdapter (or any other class that recycles ImageView instances), then ALL calls to set the contents of that ImageView must be done via one of the calls on this ImageManager .

    Parameters
    ImageView  imageView

    The image view to populate with the image.
    Uri  uri

    URI to load the image data from.

    loadImage

    public void  loadImage 
( ImageManager.OnImageLoadedListener 
 listener,  Uri 
 uri)

    Load an image to display from a URI. Note that this does not support arbitrary URIs - the URI must be something that was retrieved from another call to Google Play services.

    Note that you should hold a reference to the listener provided until the callback is complete. For this reason, the use of anonymous implementations is discouraged.

    The result is delivered to the given listener on the main thread.

    Parameters
    ImageManager.OnImageLoadedListener  listener

    The listener that is called when the load is complete.
    Uri  uri

    URI to load the image data from.

    loadImage

    public void  loadImage 
( ImageView 
 imageView,  Uri 
 uri, int defaultResId)

    Loads an image to display from a URI, using the given resource ID as the default if no image is found for the given URI. Note that this does not support arbitrary URIs - the URI must be something that was retrieved from another call to Google Play services.

    The image view will be set to the given default resource if the image needs to be loaded asynchronously.

    The result (if non-null) is set on the given image view on the main thread.

    Note that if the ImageView used for this call is hosted in a ListAdapter (or any other class that recycles ImageView instances), then ALL calls to set the contents of that ImageView must be done via one of the calls on this ImageManager .

    Parameters
    ImageView  imageView

    The image view to populate with the image.
    Uri  uri

    URI to load the image data from.
    int defaultResId

    Resource ID to use by default for the image.

    loadImage

    public void  loadImage 
(
     ImageManager.OnImageLoadedListener 
 listener,
     Uri 
 uri,
        int defaultResId
    )

    Load an image to display from a URI, using the given resource ID as the default if no image is found for the given URI. Note that this does not support arbitrary URIs - the URI must be something that was retrieved from another call to Google Play services.

    Note that you should hold a reference to the listener provided until the callback is complete. For this reason, the use of anonymous implementations is discouraged.

    The result is delivered to the given listener on the main thread.

    If a result is not found, the image view will be set to the given default resource if the image needs to be loaded asynchronously.

    Parameters
    ImageManager.OnImageLoadedListener  listener

    The listener that is called when the load is complete.
    Uri  uri

    URI to load the image data from.
    int defaultResId

    Resource ID to use by default for the image.
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