/**   * 全屏顯示   */  private void setFullSreen() {    WindowManager.LayoutParams params = getWindow().getAttributes();    params.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;    getWindow().setAttributes(params);    getWindow().addFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);    //getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN); // Activity全屏顯示，且狀態欄被覆蓋掉  }

 /**   * 退出全屏   */  private void exitFullSreen() {    WindowManager.LayoutParams params = getWindow().getAttributes();    params.flags &= (~WindowManager.LayoutParams.FLAG_FULLSCREEN);    getWindow().setAttributes(params);    getWindow().clearFlags(WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS);    //getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN); // Activity全屏顯示，但是狀態欄不會被覆蓋掉，而是正常顯示，只是Activity頂端布局會被覆蓋住  }