Dialog与DialogFragment设置大小位置的区别

我在修改Android设置菜单源码遇到的问题,设置菜单源码路径:packages\apps\Settings. wifi列表加载类为packages\apps\Settings\wifi 包下的wifiSettings类里调用packages\apps\Settings包下SettingsPreferenceFragment类的showDialog()方法,实现点击列表进行WiFi连接;参考http://blog.csdn.net/u014774589/article/details/50481775

Dialog的代码

@Overrideprotected void onCreate(Bundle savedInstanceState) {        WindowManager m = getWindowManager();        Display d = m.getDefaultDisplay(); // 为获取屏幕宽、高        android.view.WindowManager.LayoutParams p = getWindow().getAttributes();        p.height = (int) (d.getHeight() * 0.5); // 高度设置为屏幕的0.5        p.width = (int) (d.getWidth() * 1); // 宽度设置为屏幕的1        getWindow().setAttributes(p);        getWindow().setGravity(Gravity.CENTER_HORIZONTAL | Gravity.TOP);//水平置顶super.onCreate(savedInstanceState);if (mCopyHeaders != null && mCopyHeaders.size() > 0) {setListAdapter(new HeaderAdapter(this, mCopyHeaders));}}

DialogFragment的代码

@Override        public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {getDialog().getWindow().setGravity(Gravity.CENTER_HORIZONTAL | Gravity.TOP);WindowManager.LayoutParams lp = getDialog().getWindow().getAttributes();          lp.width = WindowManager.LayoutParams.MATCH_PARENT;          if (mHeight == 0) {              lp.height = WindowManager.LayoutParams.WRAP_CONTENT;          } else {              lp.height = mHeight;          }          getDialog().getWindow().setAttributes(lp);              return super.onCreateView(inflater, container, savedInstanceState);        }

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