[Android] 讓 Activity 全螢幕的方法

import android.view.Window;
import android.view.WindowManager;

@Override
public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    //應用程式的Title(名稱)
    requestWindowFeature(Window.FEATURE_NO_TITLE);   
    //Android 的系統狀態列 
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                           WindowManager.LayoutParams.FLAG_FULLSCREEN);

    setContentView(R.layout.viewer);

    .......................
}