AlertDialog 使用

直接上代码吧！

public class AlertDialogUsage extends Activity {    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);                new AlertDialog.Builder(AlertDialogUsage.this)        .setTitle("Powe level")        .setMessage("Griffin's AlertDialog sample!")        .setPositiveButton("Yes",           new DialogInterface.OnClickListener()            {           public void onClick(DialogInterface dialoginterface, int i)             {           Log.d("TAG","[setPositiveButton]");             }             }            )         .setNegativeButton("No", new DialogInterface.OnClickListener()            {           public void onClick(DialogInterface dialoginterface, int i)             {           Log.d("TAG","[setNegativeButton]");             }             }            )        .show();            }}