1 /* 2 * Copyright (C) 2009 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.graphics.drawable.ColorDrawable; 21 import android.graphics.drawable.Drawable; 22 import android.support.v7.preference.PreferenceViewHolder; 23 import android.util.AttributeSet; 24 import android.widget.ImageView; 25 import android.widget.LinearLayout; 26 import android.widget.TextView; 27 import com.android.settings.R; 28 import com.android.settings.TintablePreference; 29 import com.android.settings.Utils; 30 31 /** 32 * Custom preference for displaying battery usage info as a bar and an icon on 33 * the left for the subsystem/app type. 34 * 35 * The battery usage info could be usage percentage or usage time. The preference 36 * won't show any icon if it is null. 37 */ 38 public class PowerGaugePreference extends TintablePreference { 39 private final int mIconSize; 40 41 private BatteryEntry mInfo; 42 private CharSequence mContentDescription; 43 private CharSequence mProgress; 44 PowerGaugePreference(Context context, Drawable icon, CharSequence contentDescription, BatteryEntry info)45 public PowerGaugePreference(Context context, Drawable icon, CharSequence contentDescription, 46 BatteryEntry info) { 47 this(context, null, icon, contentDescription, info); 48 } 49 PowerGaugePreference(Context context)50 public PowerGaugePreference(Context context) { 51 this(context, null, null, null, null); 52 } 53 PowerGaugePreference(Context context, AttributeSet attrs)54 public PowerGaugePreference(Context context, AttributeSet attrs) { 55 this(context, attrs, null, null, null); 56 } 57 PowerGaugePreference(Context context, AttributeSet attrs, Drawable icon, CharSequence contentDescription, BatteryEntry info)58 private PowerGaugePreference(Context context, AttributeSet attrs, Drawable icon, 59 CharSequence contentDescription, BatteryEntry info) { 60 super(context, attrs); 61 setIcon(icon != null ? icon : new ColorDrawable(0)); 62 setWidgetLayoutResource(R.layout.preference_widget_summary); 63 mInfo = info; 64 mContentDescription = contentDescription; 65 mIconSize = context.getResources().getDimensionPixelSize(R.dimen.app_icon_size); 66 } 67 setContentDescription(String name)68 public void setContentDescription(String name) { 69 mContentDescription = name; 70 notifyChanged(); 71 } 72 setPercent(double percentOfTotal)73 public void setPercent(double percentOfTotal) { 74 mProgress = Utils.formatPercentage(percentOfTotal, true); 75 notifyChanged(); 76 } 77 getPercent()78 public String getPercent() { 79 return mProgress.toString(); 80 } 81 setSubtitle(CharSequence subtitle)82 public void setSubtitle(CharSequence subtitle) { 83 mProgress = subtitle; 84 notifyChanged(); 85 } 86 getSubtitle()87 public CharSequence getSubtitle() { 88 return mProgress; 89 } 90 getInfo()91 BatteryEntry getInfo() { 92 return mInfo; 93 } 94 95 @Override onBindViewHolder(PreferenceViewHolder view)96 public void onBindViewHolder(PreferenceViewHolder view) { 97 super.onBindViewHolder(view); 98 ImageView icon = (ImageView) view.findViewById(android.R.id.icon); 99 icon.setLayoutParams(new LinearLayout.LayoutParams(mIconSize, mIconSize)); 100 101 ((TextView) view.findViewById(R.id.widget_summary)).setText(mProgress); 102 if (mContentDescription != null) { 103 final TextView titleView = (TextView) view.findViewById(android.R.id.title); 104 titleView.setContentDescription(mContentDescription); 105 } 106 } 107 } 108