fragment切换

/**

  * fragment切换

  *

  * @param checkedId

  */

 @SuppressLint("NewApi")

 private void selectWhich(int checkedId) {

  hideFagment();

  switch (checkedId) {

  case R.id.cb_regist:// 注册

   cb_regist.setBackgroundResource(R.drawable.longin_check); //显示选择的横线

   if (registFragment == null) {

    registFragment = new RegistFragment();

    if (!registFragment.isAdded()) {

     manager.beginTransaction()

       .add(R.id.layout_container, registFragment)

       .commit();

    }

   } else {

    manager.beginTransaction().show(registFragment).commit(); //fragmentmanager

   }

   mContent = registFragment; //mContent:fragment

   break;

  case R.id.cb_login:// 登陆

   cb_login.setBackgroundResource(R.drawable.longin_check);

   if (loginFragment == null) {

    loginFragment = new LoginFragment();

    if (!loginFragment.isAdded()) {

     manager.beginTransaction()

       .add(R.id.layout_container, loginFragment).commit();

    }

   } else {

    manager.beginTransaction().show(loginFragment).commit();

   }

   mContent = loginFragment;

   break;

  }

 }

 /**

  * 隐藏fragment:

  */

 @SuppressLint("NewApi")

 private void hideFagment() {

 

  cb_login.setBackgroundResource(R.drawable.login_uncheck);

  cb_regist.setBackgroundResource(R.drawable.login_uncheck);

  if (registFragment != null && registFragment.isAdded()) {

   manager.beginTransaction().hide(registFragment).commit();

  }

  if (loginFragment != null && loginFragment.isAdded()) {

   manager.beginTransaction().hide(loginFragment).commit();

  }

 }