1 /*
2  * Copyright (C) 2022 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.batteryusage;
18 
19 import android.content.Context;
20 import android.util.AttributeSet;
21 import android.widget.TextView;
22 
23 import androidx.preference.Preference;
24 import androidx.preference.PreferenceViewHolder;
25 
26 import com.android.settings.R;
27 import com.android.settings.fuelgauge.BatteryUtils;
28 
29 /** Custom preference for displaying the battery level as chart graph. */
30 public class BatteryHistoryPreference extends Preference {
31     private static final String TAG = "BatteryHistoryPreference";
32 
33     private BatteryChartView mDailyChartView;
34     private BatteryChartView mHourlyChartView;
35     private BatteryChartPreferenceController mChartPreferenceController;
36 
BatteryHistoryPreference(Context context, AttributeSet attrs)37     public BatteryHistoryPreference(Context context, AttributeSet attrs) {
38         super(context, attrs);
39         setLayoutResource(R.layout.battery_chart_graph);
40         setSelectable(false);
41     }
42 
setChartPreferenceController(BatteryChartPreferenceController controller)43     void setChartPreferenceController(BatteryChartPreferenceController controller) {
44         mChartPreferenceController = controller;
45         if (mDailyChartView != null && mHourlyChartView != null) {
46             mChartPreferenceController.setBatteryChartView(mDailyChartView, mHourlyChartView);
47         }
48     }
49 
50     @Override
onBindViewHolder(PreferenceViewHolder view)51     public void onBindViewHolder(PreferenceViewHolder view) {
52         super.onBindViewHolder(view);
53         final long startTime = System.currentTimeMillis();
54         final TextView companionTextView = (TextView) view.findViewById(R.id.companion_text);
55         mDailyChartView = (BatteryChartView) view.findViewById(R.id.daily_battery_chart);
56         mDailyChartView.setCompanionTextView(companionTextView);
57         mHourlyChartView = (BatteryChartView) view.findViewById(R.id.hourly_battery_chart);
58         mHourlyChartView.setCompanionTextView(companionTextView);
59         if (mChartPreferenceController != null) {
60             mChartPreferenceController.setBatteryChartView(mDailyChartView, mHourlyChartView);
61         }
62         BatteryUtils.logRuntime(TAG, "onBindViewHolder", startTime);
63     }
64 }
65