NOTE: Smoothie's API is not final yet. Although the library is fairly funcional, this is still beta-quality code. Do not rely on it for production code just yet. Feedback is very welcome!

Smoothie provides a simple API to load ListView/GridView items asynchronously, off the UI thread.

• Tiny API to implement asynchonous loading of items in Android's ListView and GridView.
• Multi-part item support: split the loading of each item into separate asynchronous operations with different global priorities.
• Tight integration between user interaction and async loading of items i.e. stops loading items on fling, enables loading when panning with finger down, etc.
• Prefetch items beyond the currently visible items to reduce the number of placeholder-type items while scrolling.

1. Add Smoothie's jar as a dependency to your project.

2. Add an AsyncListView or AsyncGridView to your layout.

3. Implement an SimpleItemLoader. You're only required to override three methods: getItemParams(), loadItem(), and displayItem(). You can override more methods if you want to handle loading items from memory, preloading items, resetting item views, etc.

4. On Activity/Fragment creation, attach an ItemManager instance to your AsyncListView/AsyncGridView:

   ItemManager.Builder builder = new ItemManager.Builder(yourItemLoader);
   builder.setPreloadItemsEnabled(true).setPreloadItemsCount(5);
   builder.setThreadPoolSize(4);
   ItemManager itemManager = builder.build();
   
   AsyncListView listView = (AsyncListView) findViewById(R.id.list);
   listView.setItemManager(itemManager);

The sample app has an example of an ItemEngine powered by Android-BitmapCache that fades images in as they finish loading on a ListView.

The API docs contain a more detailed overview of the API.

Grab via Maven:

<dependency>
  <groupId>org.lucasr.smoothie</groupId>
  <artifactId>smoothie</artifactId>
  <version>0.1.0</version>
</dependency>

or Gradle:

compile 'org.lucasr.smoothie:smoothie:0.1.0'

File new issues to discuss specific aspects of the API and to propose new features.

Copyright 2012 Lucas Rocha

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

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distributed under the License is distributed on an "AS IS" BASIS,
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