Home | History | Annotate | Download | only in fuelgauge 
      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.settings.fuelgauge;
     18 
     19 import android.content.Context;
     20 import android.os.Bundle;
     21 import android.os.SystemClock;
     22 import android.support.v7.preference.Preference;
     23 import android.support.v7.preference.PreferenceViewHolder;
     24 import android.util.AttributeSet;
     25 import android.widget.TextView;
     26 import com.android.internal.os.BatteryStatsHelper;
     27 import com.android.settings.R;
     28 import com.android.settings.Utils;
     29 import com.android.settingslib.BatteryInfo;
     30 import com.android.settingslib.graph.UsageView;
     31 
     32 /**
     33  * Custom preference for displaying power consumption as a bar and an icon on the left for the
     34  * subsystem/app type.
     35  *
     36  */
     37 public class BatteryHistoryPreference extends Preference {
     38 
     39     protected static final String BATTERY_HISTORY_FILE = "tmp_bat_history.bin";
     40 
     41     private BatteryStatsHelper mHelper;
     42     private BatteryInfo mBatteryInfo;
     43 
     44     public BatteryHistoryPreference(Context context, AttributeSet attrs) {
     45         super(context, attrs);
     46         setLayoutResource(R.layout.battery_usage_graph);
     47         setSelectable(true);
     48     }
     49 
     50     @Override
     51     public void performClick() {
     52         mHelper.storeStatsHistoryInFile(BATTERY_HISTORY_FILE);
     53         Bundle args = new Bundle();
     54         args.putString(BatteryHistoryDetail.EXTRA_STATS, BATTERY_HISTORY_FILE);
     55         args.putParcelable(BatteryHistoryDetail.EXTRA_BROADCAST, mHelper.getBatteryBroadcast());
     56         Utils.startWithFragment(getContext(), BatteryHistoryDetail.class.getName(), args,
     57                 null, 0, R.string.history_details_title, null);
     58     }
     59 
     60     public void setStats(BatteryStatsHelper batteryStats) {
     61         mHelper = batteryStats;
     62         final long elapsedRealtimeUs = SystemClock.elapsedRealtime() * 1000;
     63         mBatteryInfo = BatteryInfo.getBatteryInfo(getContext(), batteryStats.getBatteryBroadcast(),
     64                 batteryStats.getStats(), elapsedRealtimeUs);
     65         notifyChanged();
     66     }
     67 
     68     @Override
     69     public void onBindViewHolder(PreferenceViewHolder view) {
     70         super.onBindViewHolder(view);
     71         if (mBatteryInfo == null) {
     72             return;
     73         }
     74         view.itemView.setClickable(true);
     75         view.setDividerAllowedAbove(true);
     76         ((TextView) view.findViewById(R.id.charge)).setText(mBatteryInfo.batteryPercentString);
     77         ((TextView) view.findViewById(R.id.estimation)).setText(mBatteryInfo.remainingLabel);
     78         UsageView usageView = (UsageView) view.findViewById(R.id.battery_usage);
     79         usageView.findViewById(R.id.label_group).setAlpha(.7f);
     80         mBatteryInfo.bindHistory(usageView);
     81     }
     82 }
     83