android常用类

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android.content.Context

android.Manifest

android.app.Activity

android.app.Service

android.net.wifi.WifiManager

android.content.BroadcastReceiver

android.content.Intent

android.content.IntentFilter

android.content.BroadcastReceiver

java.net.URLConnection

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android.os.Handler

android.view.LayoutInflaterandroid.widget.ArrayAdapter<T>
android.widget.SimpleAdapterandroid.widget.CursorAdapterandroid.database.Cursorandroid.os.Message
android.widget.ProgressBarandroid.app.ProgressDialog
java.net.DatagramSocketjava.net.ServerSocket