com.squareup.picasso

Class RequestHandler

java.lang.Object

com.squareup.picasso.RequestHandler

public abstract class RequestHandler
extends java.lang.Object

RequestHandler allows you to extend Picasso to load images in ways that are not supported by default in the library.

Usage

RequestHandler must be subclassed to be used. You will have to override two methods (canHandleRequest(Request) and load(Request, int)) with your custom logic to load images.

You should then register your RequestHandler using Picasso.Builder.addRequestHandler(RequestHandler)

Note: This is a beta feature. The API is subject to change in a backwards incompatible way at any time.

See Also:

Picasso.Builder.addRequestHandler(RequestHandler)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	RequestHandler.Result RequestHandler.Result represents the result of a load(Request, int) call in a RequestHandler.

Constructor Summary

Constructors

Constructor and Description
RequestHandler()

Method Summary

Modifier and Type	Method and Description
abstract boolean	canHandleRequest(Request data) Whether or not this RequestHandler can handle a request with the given Request.
abstract RequestHandler.Result	load(Request request, int networkPolicy) Loads an image for the given Request.

Methods inherited from class java.lang.Object

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

Constructor Detail

RequestHandler

public RequestHandler()

Method Detail

canHandleRequest

public abstract boolean canHandleRequest(Request data)

Whether or not this RequestHandler can handle a request with the given Request.

load

public abstract RequestHandler.Result load(Request request,
                                           int networkPolicy)
                                    throws java.io.IOException

Loads an image for the given Request.

Parameters:

request - the data from which the image should be resolved.

networkPolicy - the NetworkPolicy for this request.

Throws:

java.io.IOException