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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.email.activity.setup;
     18 
     19 import android.app.Activity;
     20 import android.app.FragmentTransaction;
     21 import android.os.Bundle;
     22 
     23 /**
     24  * Superclass of all of the account setup activities; ensures that SetupData state is saved/restored
     25  * automatically as required
     26  */
     27 public class AccountSetupActivity extends Activity implements SetupDataFragment.SetupDataContainer {
     28     protected SetupDataFragment mSetupData;
     29 
     30     private static final String SETUP_DATA_FRAGMENT_TAG = "setupData";
     31     @Override
     32     public void onCreate(Bundle savedInstanceState) {
     33         super.onCreate(savedInstanceState);
     34 
     35         if (savedInstanceState == null) {
     36             final Bundle b = getIntent().getExtras();
     37             if (b != null) {
     38                 mSetupData = b.getParcelable(SetupDataFragment.EXTRA_SETUP_DATA);
     39                 if (mSetupData != null) {
     40                     final FragmentTransaction ft = getFragmentManager().beginTransaction();
     41                     ft.add(mSetupData, SETUP_DATA_FRAGMENT_TAG);
     42                     ft.commit();
     43                 }
     44             }
     45         } else {
     46             mSetupData = (SetupDataFragment)getFragmentManager()
     47                     .findFragmentByTag(SETUP_DATA_FRAGMENT_TAG);
     48         }
     49 
     50         if (mSetupData == null) {
     51             mSetupData = new SetupDataFragment();
     52             final FragmentTransaction ft = getFragmentManager().beginTransaction();
     53             ft.add(mSetupData, SETUP_DATA_FRAGMENT_TAG);
     54             ft.commit();
     55         }
     56     }
     57 
     58     @Override
     59     public SetupDataFragment getSetupData() {
     60         return mSetupData;
     61     }
     62 }
     63