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.annotation.VisibleForTesting; 23 import android.support.v7.preference.Preference; 24 import android.support.v7.preference.PreferenceViewHolder; 25 import android.util.AttributeSet; 26 import android.widget.TextView; 27 import com.android.internal.os.BatteryStatsHelper; 28 import com.android.settings.R; 29 import com.android.settings.Utils; 30 import com.android.settings.overlay.FeatureFactory; 31 import com.android.settingslib.BatteryInfo; 32 import com.android.settingslib.graph.UsageView; 33 34 /** 35 * Custom preference for displaying power consumption as a bar and an icon on the left for the 36 * subsystem/app type. 37 */ 38 public class BatteryHistoryPreference extends Preference { 39 40 @VisibleForTesting 41 BatteryInfo mBatteryInfo; 42 BatteryHistoryPreference(Context context, AttributeSet attrs)43 public BatteryHistoryPreference(Context context, AttributeSet attrs) { 44 super(context, attrs); 45 setLayoutResource(R.layout.battery_usage_graph); 46 setSelectable(false); 47 } 48 setStats(BatteryStatsHelper batteryStats)49 public void setStats(BatteryStatsHelper batteryStats) { 50 final long elapsedRealtimeUs = SystemClock.elapsedRealtime() * 1000; 51 mBatteryInfo = BatteryInfo.getBatteryInfo(getContext(), batteryStats.getBatteryBroadcast(), 52 batteryStats.getStats(), elapsedRealtimeUs); 53 notifyChanged(); 54 } 55 56 @Override onBindViewHolder(PreferenceViewHolder view)57 public void onBindViewHolder(PreferenceViewHolder view) { 58 super.onBindViewHolder(view); 59 if (mBatteryInfo == null) { 60 return; 61 } 62 63 ((TextView) view.findViewById(R.id.charge)).setText(mBatteryInfo.batteryPercentString); 64 UsageView usageView = (UsageView) view.findViewById(R.id.battery_usage); 65 usageView.findViewById(R.id.label_group).setAlpha(.7f); 66 mBatteryInfo.bindHistory(usageView); 67 } 68 } 69