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      1 /*
      2  * Copyright (C) 2017 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.dialer.main.impl;
     18 
     19 import android.content.Context;
     20 import android.support.annotation.IntDef;
     21 import android.support.v4.app.Fragment;
     22 import android.support.v4.app.FragmentManager;
     23 import android.support.v4.app.FragmentStatePagerAdapter;
     24 import com.android.dialer.common.Assert;
     25 import java.lang.annotation.Retention;
     26 import java.lang.annotation.RetentionPolicy;
     27 
     28 /** Adapter for {@link MainActivity} ViewPager. */
     29 final class MainPagerAdapter extends FragmentStatePagerAdapter {
     30 
     31   @Retention(RetentionPolicy.SOURCE)
     32   @IntDef({
     33     TabIndex.SPEED_DIAL,
     34     TabIndex.HISTORY,
     35     TabIndex.VOICEMAIL,
     36   })
     37   private @interface TabIndex {
     38     int SPEED_DIAL = 0;
     39     int HISTORY = 1;
     40     int VOICEMAIL = 2;
     41   }
     42 
     43   private final Context context;
     44 
     45   MainPagerAdapter(Context context, FragmentManager fragmentManager) {
     46     super(fragmentManager);
     47     this.context = context;
     48   }
     49 
     50   @Override
     51   public int getCount() {
     52     // TODO: add logic to hide/show voicemail tab
     53     return 3;
     54   }
     55 
     56   @Override
     57   public Fragment getItem(int position) {
     58     // TODO: implement tabs
     59     return new StubFragment();
     60   }
     61 
     62   @Override
     63   public CharSequence getPageTitle(int position) {
     64     switch (position) {
     65       case TabIndex.SPEED_DIAL:
     66         return context.getString(R.string.tab_title_speed_dial);
     67       case TabIndex.HISTORY:
     68         return context.getString(R.string.tab_title_call_history);
     69       case TabIndex.VOICEMAIL:
     70         return context.getString(R.string.tab_title_voicemail);
     71       default:
     72         throw Assert.createIllegalStateFailException("Tab position with no title: " + position);
     73     }
     74   }
     75 }
     76