import android.app.Activity;import android.os.Bundle;import android.util.DisplayMetrics;import android.widget.TextView;public class A03Activity extends Activity { private TextView mTextView01;  /** Called when the activity is first created. */  @Override  public void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.main);    mTextView01=(TextView)findViewById(R.id.myTextView01);    DisplayMetrics dm=new DisplayMetrics();    getWindowManager().getDefaultDisplay().getMetrics(dm);    String s="屏幕的分辨率為："+dm.widthPixels+"*"+dm.heightPixels;    mTextView01.setText(s);  }}