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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.phone;
     18 
     19 import android.app.Activity;
     20 import android.content.Context;
     21 import android.content.Intent;
     22 import android.net.NetworkTemplate;
     23 import android.preference.Preference;
     24 import android.provider.Settings;
     25 import android.telephony.TelephonyManager;
     26 import android.text.format.Formatter;
     27 import android.util.AttributeSet;
     28 
     29 import com.android.settingslib.drawer.SettingsDrawerActivity;
     30 import com.android.settingslib.net.DataUsageController;
     31 
     32 /**
     33  * The preference that shows mobile data usage summary and
     34  * leads to mobile data usage list page.
     35  */
     36 public class DataUsagePreference extends Preference {
     37 
     38     private NetworkTemplate mTemplate;
     39     private int mSubId;
     40 
     41     public DataUsagePreference(Context context, AttributeSet attrs) {
     42         super(context, attrs);
     43     }
     44 
     45     /**
     46      * After creating this preference, this functions needs to be called to
     47      * initialize which subID it connects to.
     48      */
     49     public void initialize(int subId) {
     50         Activity activity = (Activity) getContext();
     51 
     52         mSubId = subId;
     53         mTemplate = getNetworkTemplate(activity, subId);
     54 
     55         DataUsageController controller = new DataUsageController(activity);
     56 
     57         DataUsageController.DataUsageInfo usageInfo = controller.getDataUsageInfo(mTemplate);
     58         setSummary(activity.getString(R.string.data_usage_template,
     59                 Formatter.formatFileSize(activity, usageInfo.usageLevel), usageInfo.period));
     60         setIntent(getIntent());
     61     }
     62 
     63     @Override
     64     public Intent getIntent() {
     65         Intent intent = new Intent(Settings.ACTION_MOBILE_DATA_USAGE);
     66         intent.putExtra(SettingsDrawerActivity.EXTRA_SHOW_MENU, true);
     67 
     68         intent.putExtra(Settings.EXTRA_NETWORK_TEMPLATE, mTemplate);
     69         intent.putExtra(Settings.EXTRA_SUB_ID, mSubId);
     70 
     71         return intent;
     72     }
     73 
     74     private NetworkTemplate getNetworkTemplate(Activity activity, int subId) {
     75         TelephonyManager tm = (TelephonyManager) activity
     76                 .getSystemService(Context.TELEPHONY_SERVICE);
     77         NetworkTemplate mobileAll = NetworkTemplate.buildTemplateMobileAll(
     78                 tm.getSubscriberId(subId));
     79         return NetworkTemplate.normalize(mobileAll,
     80                 tm.getMergedSubscriberIds());
     81     }
     82 }
     83