Android Developers Blog: Painless threading

Whenever you first start an Android application, a thread called "main" is automatically created. The main thread, also called the UI thread, is very important because it is in charge of dispatching the events to the appropriate widgets and this includes the drawing events. It is also the thread you interact with Android widgets on. For instance, if you touch the a button on screen, the UI thread

[pantingclimber]

　AsyncTask を使って ANR(Application Not Responding)を避けるコーディング方法

[IchiRoku]

UI threadが守るべき2つのルール

[secondlife]

非同期で画像ロード ただの Thread と AsynkTask を使った方法

[androidzaurus]

AsyncTaskを使ってお手軽バックグラウンド処理。