<http://schemas.android.com/apk/res/android>"
      package="myb.x2.app2"
      android:versionCode="1"
      android:versionName="1.0">

                          <android:screenOrientation="portrait"
                  android:label="@string/app_name">

     <android:normalScreens="true"
          android:smallScreens="true"
          android:anyDensity="true" />

public class myactivity extends Activity {
    public myview v;
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // setContentView(R.layout.main );
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        // 獲得屏幕寬和高
        WindowManager windowManager = getWindowManager();
        Display display = windowManager.getDefaultDisplay();
        int w = display.getWidth();
        int h = display.getHeight();
        v=new myview(this,w,h);
        setContentView(v);
        v.start();
    }

}