1、android.preference.PreferenceRepresents the basic Preference UI building block displayed by a PreferenceActivity in the form of a ListView. This class provides the View to be displayed in the activity and associates with a SharedPreferences to
reboot:Intent i= new Intent( Intent.ACTION_REBOOT);intent.putExtra("nowait", 1); intent.putExtra("interval", 1); intent.putExtra("window", 0);sendBroadcast( i ); shutdown:Intent i= new Intent( Intent.ACTION_SHUTDOWN);sendBroadcast( i ); public
public abstract classServiceextends ContextWrapperimplements ComponentCallbacks Class OverviewA Service is an application component representing either an application's desire to perform a longer-running operation while not interacting with the user
android.content.BroadcastReceier. public abstract class BroadcastReceiverextends ObjectClass OverviewBase class for code that will receive intents sent by sendBroadcast(). You can either dynamically register an instance of this class with
下面先主要學習一下android.content.AsyncQueryHandler這個類 簡單介紹:A helper class to help make handling asynchronous ContentResolver queries easier. 它是一個協助處理非同步ContentResolver查詢的協助類。它繼承於Handler。 它的建構函式:public AsyncQueryHandler (ContentResolver cr)