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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.app.settings;
     18 
     19 import android.app.Fragment;
     20 import android.content.Context;
     21 import android.graphics.drawable.Icon;
     22 import android.os.Bundle;
     23 import android.preference.Preference;
     24 import android.preference.PreferenceActivity;
     25 import android.preference.PreferenceFragment;
     26 import android.preference.PreferenceScreen;
     27 import android.support.annotation.VisibleForTesting;
     28 import android.telecom.PhoneAccount;
     29 import android.telecom.PhoneAccountHandle;
     30 import android.telecom.TelecomManager;
     31 import java.util.List;
     32 
     33 /**
     34  * Preference screen that lists SIM phone accounts to select from, and forwards the selected account
     35  * to {@link #PARAM_TARGET_FRAGMENT}. Can only be used in a {@link PreferenceActivity}
     36  */
     37 public class PhoneAccountSelectionFragment extends PreferenceFragment {
     38 
     39   /** The {@link PreferenceFragment} to launch after the account is selected. */
     40   public static final String PARAM_TARGET_FRAGMENT = "target_fragment";
     41 
     42   /**
     43    * The arguments bundle to pass to the {@link #PARAM_TARGET_FRAGMENT}
     44    *
     45    * @see Fragment#getArguments()
     46    */
     47   public static final String PARAM_ARGUMENTS = "arguments";
     48 
     49   /**
     50    * The key to insert the selected {@link PhoneAccountHandle} to bundle in {@link #PARAM_ARGUMENTS}
     51    */
     52   public static final String PARAM_PHONE_ACCOUNT_HANDLE_KEY = "phone_account_handle_key";
     53 
     54   /**
     55    * The title of the {@link #PARAM_TARGET_FRAGMENT} once it is launched with {@link
     56    * PreferenceActivity#startWithFragment(String, Bundle, Fragment, int)}, as a string resource ID.
     57    */
     58   public static final String PARAM_TARGET_TITLE_RES = "target_title_res";
     59 
     60   private String targetFragment;
     61   private Bundle arguments;
     62   private String phoneAccountHandleKey;
     63   private int titleRes;
     64 
     65   @Override
     66   public void onCreate(Bundle savedInstanceState) {
     67     super.onCreate(savedInstanceState);
     68     targetFragment = getArguments().getString(PARAM_TARGET_FRAGMENT);
     69     arguments = new Bundle();
     70     arguments.putAll(getArguments().getBundle(PARAM_ARGUMENTS));
     71     phoneAccountHandleKey = getArguments().getString(PARAM_PHONE_ACCOUNT_HANDLE_KEY);
     72     titleRes = getArguments().getInt(PARAM_TARGET_TITLE_RES, 0);
     73   }
     74 
     75   final class AccountPreference extends Preference {
     76     private final PhoneAccountHandle phoneAccountHandle;
     77 
     78     public AccountPreference(
     79         Context context, PhoneAccountHandle phoneAccountHandle, PhoneAccount phoneAccount) {
     80       super(context);
     81       this.phoneAccountHandle = phoneAccountHandle;
     82       setTitle(phoneAccount.getLabel());
     83       setSummary(phoneAccount.getShortDescription());
     84       Icon icon = phoneAccount.getIcon();
     85       if (icon != null) {
     86         setIcon(icon.loadDrawable(context));
     87       }
     88     }
     89 
     90     @VisibleForTesting
     91     void click() {
     92       onClick();
     93     }
     94 
     95     @Override
     96     protected void onClick() {
     97       super.onClick();
     98       PreferenceActivity preferenceActivity = (PreferenceActivity) getActivity();
     99       arguments.putParcelable(phoneAccountHandleKey, phoneAccountHandle);
    100       preferenceActivity.startWithFragment(targetFragment, arguments, null, 0, titleRes, 0);
    101     }
    102   }
    103 
    104   @Override
    105   public void onResume() {
    106     super.onResume();
    107     setPreferenceScreen(getPreferenceManager().createPreferenceScreen(getContext()));
    108     PreferenceScreen screen = getPreferenceScreen();
    109 
    110     TelecomManager telecomManager = getContext().getSystemService(TelecomManager.class);
    111 
    112     List<PhoneAccountHandle> accountHandles = telecomManager.getCallCapablePhoneAccounts();
    113 
    114     Context context = getActivity();
    115     for (PhoneAccountHandle handle : accountHandles) {
    116       PhoneAccount account = telecomManager.getPhoneAccount(handle);
    117       if (account != null) {
    118         final boolean isSimAccount =
    119             0 != (account.getCapabilities() & PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION);
    120         if (isSimAccount) {
    121           screen.addPreference(new AccountPreference(context, handle, account));
    122         }
    123       }
    124     }
    125   }
    126 }
    127