/** 描述:显示这个fragment */ public void showFragment(Fragment fragment) { // 主视图的Fragment添加 getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, fragment).commit(); if (menu.isMenuShowing()) { menu.showContent(); } }
@Override public void onBackPressed() { if (menu.isMenuShowing()) { menu.showContent(); } else { super.onBackPressed(); } }
/** 描述:返回. */ @Override public void onBackPressed() { if (menu.isMenuShowing()) { menu.showContent(); } else { if (mMainContentFragment.canBack()) { if (isExit == false) { isExit = true; AbToastUtil.showToast(MainActivity.this, "再按一次退出程序"); } else { super.onBackPressed(); } } } }