Modify proc stats to show new memory use computation.

Switch the proc status UI's memory use bar to be based on the
new total memory use computation, instead of showing that weird
"time spent in memory states" thing.

Also now have it link to a detail page that shows details of time
spent in memory states and RAM used by various things.

Change-Id: I6817a499db518adb8e72466a5e9cfe18a81be5d5

res/layout/preference_linearcolor.xml

@@ -19,7 +19,6 @@
         android:layout_height="?android:attr/listPreferredItemHeight"
         android:paddingStart="?android:attr/listPreferredItemPaddingStart"
         android:paddingEnd="?android:attr/listPreferredItemPaddingEnd">
-
     <com.android.settings.applications.LinearColorBar
         android:id="@+id/linear_color_bar"
         android:layout_width="match_parent"

res/layout/process_stats_mem_details.xml

@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2014 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<ScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:clipToPadding="false"
+    android:scrollbarStyle="@integer/preference_scrollbar_style">
+
+    <LinearLayout
+        android:id="@+id/all_details"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:paddingTop="5dip"
+        android:paddingBottom="5dip"
+        android:orientation="vertical">
+
+        <TextView
+            style="?android:attr/listSeparatorTextViewStyle"
+            android:text="@string/mem_state_subtitle" />
+
+        <LinearLayout
+            android:id="@+id/mem_state"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:paddingStart="6dip"
+            android:orientation="vertical">
+
+            <!-- Insert detail items here -->
+
+        </LinearLayout>
+
+        <TextView
+            style="?android:attr/listSeparatorTextViewStyle"
+            android:text="@string/mem_use_subtitle" />
+
+        <LinearLayout
+            android:id="@+id/mem_use"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:paddingStart="6dip"
+            android:orientation="vertical">
+
+            <!-- Insert detail items here -->
+
+        </LinearLayout>
+
+    </LinearLayout>
+</ScrollView>

res/values/arrays.xml

@@ -1256,4 +1256,30 @@
         <item>15</item>
         <item>20</item>
     </integer-array>
+
+    <!-- Process stats memory use details: labels for memory states -->
+    <string-array name="proc_stats_memory_states" >
+        <item>Normal</item>
+        <item>Moderate</item>
+        <item>Low</item>
+        <item>Critical</item>
+    </string-array>
+
+    <!-- Process stats memory use details: labels for process -->
+    <string-array name="proc_stats_process_states" >
+        <item>Persistent</item>
+        <item>Top activity</item>
+        <item>Important (foreground)</item>
+        <item>Important (background)</item>
+        <item>Backup</item>
+        <item>Heavy weight</item>
+        <item>Service (running)</item>
+        <item>Service (restarting)</item>
+        <item>Receiver</item>
+        <item>Home</item>
+        <item>Last activity</item>
+        <item>Cached (activity)</item>
+        <item>Cached (activity client)</item>
+        <item>Cached (empty)</item>
+    </string-array>
 </resources>

res/values/strings.xml

@@ -3803,6 +3803,24 @@
     <string name="services_subtitle">Services</string>
     <!-- [CHAR LIMIT=NONE] Menu for process stats to select duration of stats to show -->
     <string name="menu_proc_stats_duration">Duration</string>
+    <!-- [CHAR LIMIT=NONE] Activity title for process stats details on overall memory state -->
+    <string name="mem_details_title">Memory details</string>
+    <!-- [CHAR LIMIT=NONE] Subtitle for process stats memory state details for list of memory states -->
+    <string name="mem_state_subtitle">Memory states</string>
+    <!-- [CHAR LIMIT=NONE] Subtitle for process stats memory state details for list of memory use -->
+    <string name="mem_use_subtitle">Memory use</string>
+    <!-- [CHAR LIMIT=NONE] Type of memory use associated with the kernel -->
+    <string name="mem_use_kernel_type">Kernel</string>
+    <!-- [CHAR LIMIT=NONE] Type of memory use associated with native processes -->
+    <string name="mem_use_native_type">Native</string>
+    <!-- [CHAR LIMIT=NONE] Type of memory use associated with kernel caches -->
+    <string name="mem_use_kernel_cache_type">Kernel caches</string>
+    <!-- [CHAR LIMIT=NONE] Type of memory use associated with kernel zram swap -->
+    <string name="mem_use_zram_type">ZRam swap</string>
+    <!-- [CHAR LIMIT=NONE] Type of memory use that is available/free -->
+    <string name="mem_use_free_type">Free</string>
+    <!-- [CHAR LIMIT=NONE] Total of all memory use -->
+    <string name="mem_use_total">Total</string>
     <!-- [CHAR LIMIT=NONE] Menu for process stats to show 3 hours of data -->
     <string name="menu_duration_3h">3 hours</string>
     <!-- [CHAR LIMIT=NONE] Menu for process stats to show 3 hours of data -->

src/com/android/settings/Utils.java

@@ -78,6 +78,15 @@ public final class Utils {
      */
     public static final float DISABLED_ALPHA = 0.4f;
 
+    /**
+     * Color spectrum to use to indicate badness.  0 is completely transparent (no data),
+     * 1 is most bad (red), the last value is least bad (green).
+     */
+    public static final int[] BADNESS_COLORS = new int[] {
+            0x00000000, 0xffc43828, 0xffe54918, 0xfff47b00,
+            0xfffabf2c, 0xff679e37, 0xff0a7f42
+    };
+
     /**
      * Name of the meta-data item that should be set in the AndroidManifest.xml
      * to specify the icon that should be displayed for the preference.

src/com/android/settings/applications/LinearColorPreference.java

@@ -25,6 +25,9 @@ public class LinearColorPreference extends Preference {
     float mRedRatio;
     float mYellowRatio;
     float mGreenRatio;
+    int mRedColor = 0xffaa5030;
+    int mYellowColor = 0xffaaaa30;
+    int mGreenColor = 0xff30aa50;
     int mColoredRegions = LinearColorBar.REGION_ALL;
     LinearColorBar.OnRegionTappedListener mOnRegionTappedListener;
 
@@ -40,6 +43,13 @@ public class LinearColorPreference extends Preference {
         notifyChanged();
     }
 
+    public void setColors(int red, int yellow, int green) {
+        mRedColor = red;
+        mYellowColor = yellow;
+        mGreenColor = green;
+        notifyChanged();
+    }
+
     public void setOnRegionTappedListener(LinearColorBar.OnRegionTappedListener listener) {
         mOnRegionTappedListener = listener;
         notifyChanged();
@@ -57,7 +67,7 @@ public class LinearColorPreference extends Preference {
         LinearColorBar colors = (LinearColorBar)view.findViewById(
                 R.id.linear_color_bar);
         colors.setShowIndicator(false);
-        colors.setColors(0xffaa5030, 0xffaaaa30, 0xff30aa50);
+        colors.setColors(mRedColor, mYellowColor, mGreenColor);
         colors.setRatios(mRedRatio, mYellowRatio, mGreenRatio);
         colors.setColoredRegions(mColoredRegions);
         colors.setOnRegionTappedListener(mOnRegionTappedListener);

src/com/android/settings/applications/ProcessStatsMemDetail.java

@@ -0,0 +1,152 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.applications;
+
+import android.app.Fragment;
+import android.os.Bundle;
+import android.text.format.Formatter;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+import com.android.internal.app.ProcessStats;
+import com.android.settings.R;
+
+import static com.android.settings.Utils.prepareCustomPreferencesList;
+
+public class ProcessStatsMemDetail extends Fragment {
+    public static final String EXTRA_MEM_TIMES = "mem_times";
+    public static final String EXTRA_MEM_STATE_WEIGHTS = "mem_state_weights";
+    public static final String EXTRA_MEM_CACHED_WEIGHT = "mem_cached_weight";
+    public static final String EXTRA_MEM_FREE_WEIGHT = "mem_free_weight";
+    public static final String EXTRA_MEM_ZRAM_WEIGHT = "mem_zram_weight";
+    public static final String EXTRA_MEM_KERNEL_WEIGHT = "mem_kernel_weight";
+    public static final String EXTRA_MEM_NATIVE_WEIGHT = "mem_native_weight";
+    public static final String EXTRA_MEM_TOTAL_WEIGHT = "mem_total_weight";
+    public static final String EXTRA_USE_USS = "use_uss";
+    public static final String EXTRA_TOTAL_TIME = "total_time";
+
+    long[] mMemTimes;
+    double[] mMemStateWeights;
+    double mMemCachedWeight;
+    double mMemFreeWeight;
+    double mMemZRamWeight;
+    double mMemKernelWeight;
+    double mMemNativeWeight;
+    double mMemTotalWeight;
+    boolean mUseUss;
+    long mTotalTime;
+
+    private View mRootView;
+    private ViewGroup mMemStateParent;
+    private ViewGroup mMemUseParent;
+
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+        final Bundle args = getArguments();
+        mMemTimes = args.getLongArray(EXTRA_MEM_TIMES);
+        mMemStateWeights = args.getDoubleArray(EXTRA_MEM_STATE_WEIGHTS);
+        mMemCachedWeight = args.getDouble(EXTRA_MEM_CACHED_WEIGHT);
+        mMemFreeWeight = args.getDouble(EXTRA_MEM_FREE_WEIGHT);
+        mMemZRamWeight = args.getDouble(EXTRA_MEM_ZRAM_WEIGHT);
+        mMemKernelWeight = args.getDouble(EXTRA_MEM_KERNEL_WEIGHT);
+        mMemNativeWeight = args.getDouble(EXTRA_MEM_NATIVE_WEIGHT);
+        mMemTotalWeight = args.getDouble(EXTRA_MEM_TOTAL_WEIGHT);
+        mUseUss = args.getBoolean(EXTRA_USE_USS);
+        mTotalTime = args.getLong(EXTRA_TOTAL_TIME);
+    }
+
+    @Override
+    public View onCreateView(
+            LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+        final View view = inflater.inflate(R.layout.process_stats_mem_details, container, false);
+        prepareCustomPreferencesList(container, view, view, false);
+
+        mRootView = view;
+        createDetails();
+        return view;
+    }
+
+    @Override
+    public void onPause() {
+        super.onPause();
+    }
+
+    private void createDetails() {
+        mMemStateParent = (ViewGroup)mRootView.findViewById(R.id.mem_state);
+        mMemUseParent = (ViewGroup)mRootView.findViewById(R.id.mem_use);
+
+        fillMemStateSection();
+        fillMemUseSection();
+    }
+
+    private void addDetailsItem(ViewGroup parent, CharSequence title,
+            float level, CharSequence value) {
+        LayoutInflater inflater = getActivity().getLayoutInflater();
+        ViewGroup item = (ViewGroup) inflater.inflate(R.layout.app_percentage_item,
+                null);
+        parent.addView(item);
+        item.findViewById(android.R.id.icon).setVisibility(View.GONE);
+        TextView titleView = (TextView) item.findViewById(android.R.id.title);
+        TextView valueView = (TextView) item.findViewById(android.R.id.text1);
+        titleView.setText(title);
+        valueView.setText(value);
+        ProgressBar progress = (ProgressBar) item.findViewById(android.R.id.progress);
+        progress.setProgress(Math.round(level*100));
+    }
+
+    private void fillMemStateSection() {
+        CharSequence[] labels = getResources().getTextArray(R.array.proc_stats_memory_states);
+        for (int i=0; i<ProcessStats.ADJ_MEM_FACTOR_COUNT; i++) {
+            if (mMemTimes[i] > 0) {
+                float level = ((float)mMemTimes[i])/mTotalTime;
+                addDetailsItem(mMemStateParent, labels[i], level,
+                        Formatter.formatShortElapsedTime(getActivity(), mMemTimes[i]));
+            }
+        }
+    }
+
+    private void addMemUseDetailsItem(ViewGroup parent, CharSequence title, double weight) {
+        if (weight > 0) {
+            float level = (float)(weight/mMemTotalWeight);
+            String value = Formatter.formatShortFileSize(getActivity(),
+                    (long)((weight * 1024) / mTotalTime));
+            addDetailsItem(parent, title, level, value);
+        }
+    }
+
+    private void fillMemUseSection() {
+        CharSequence[] labels = getResources().getTextArray(R.array.proc_stats_process_states);
+        addMemUseDetailsItem(mMemUseParent,
+                getResources().getText(R.string.mem_use_kernel_type), mMemKernelWeight);
+        addMemUseDetailsItem(mMemUseParent,
+                getResources().getText(R.string.mem_use_native_type), mMemNativeWeight);
+        for (int i=0; i<ProcessStats.STATE_COUNT; i++) {
+            addMemUseDetailsItem(mMemUseParent, labels[i], mMemStateWeights[i]);
+        }
+        addMemUseDetailsItem(mMemUseParent,
+                getResources().getText(R.string.mem_use_kernel_cache_type), mMemCachedWeight);
+        addMemUseDetailsItem(mMemUseParent,
+                getResources().getText(R.string.mem_use_zram_type), mMemZRamWeight);
+        addMemUseDetailsItem(mMemUseParent,
+                getResources().getText(R.string.mem_use_free_type), mMemFreeWeight);
+        addMemUseDetailsItem(mMemUseParent,
+                getResources().getText(R.string.mem_use_total), mMemTotalWeight);
+    }
+}

src/com/android/settings/applications/ProcessStatsUi.java

@@ -112,6 +112,15 @@ public class ProcessStatsUi extends PreferenceFragment
     long mMaxWeight;
     long mTotalTime;
 
+    long[] mMemTimes = new long[ProcessStats.ADJ_MEM_FACTOR_COUNT];
+    double[] mMemStateWeights = new double[ProcessStats.STATE_COUNT];
+    double mMemCachedWeight;
+    double mMemFreeWeight;
+    double mMemZRamWeight;
+    double mMemKernelWeight;
+    double mMemNativeWeight;
+    double mMemTotalWeight;
+
     // The actual duration value to use for each duration option.  Note these
     // are lower than the actual duration, since our durations are computed in
     // batches of 3 hours so we want to allow the time we use to be slightly
@@ -182,6 +191,24 @@ public class ProcessStatsUi extends PreferenceFragment
 
     @Override
     public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
+        if (preference instanceof LinearColorPreference) {
+            Bundle args = new Bundle();
+            args.putLongArray(ProcessStatsMemDetail.EXTRA_MEM_TIMES, mMemTimes);
+            args.putDoubleArray(ProcessStatsMemDetail.EXTRA_MEM_STATE_WEIGHTS, mMemStateWeights);
+            args.putDouble(ProcessStatsMemDetail.EXTRA_MEM_CACHED_WEIGHT, mMemCachedWeight);
+            args.putDouble(ProcessStatsMemDetail.EXTRA_MEM_FREE_WEIGHT, mMemFreeWeight);
+            args.putDouble(ProcessStatsMemDetail.EXTRA_MEM_ZRAM_WEIGHT, mMemZRamWeight);
+            args.putDouble(ProcessStatsMemDetail.EXTRA_MEM_KERNEL_WEIGHT, mMemKernelWeight);
+            args.putDouble(ProcessStatsMemDetail.EXTRA_MEM_NATIVE_WEIGHT, mMemNativeWeight);
+            args.putDouble(ProcessStatsMemDetail.EXTRA_MEM_TOTAL_WEIGHT, mMemTotalWeight);
+            args.putBoolean(ProcessStatsMemDetail.EXTRA_USE_USS, mUseUss);
+            args.putLong(ProcessStatsMemDetail.EXTRA_TOTAL_TIME, mTotalTime);
+            ((SettingsActivity) getActivity()).startPreferencePanel(
+                    ProcessStatsMemDetail.class.getName(), args, R.string.mem_details_title,
+                    null, null, 0);
+            return true;
+        }
+
         if (!(preference instanceof ProcessStatsPreference)) {
             return false;
         }
@@ -408,11 +435,13 @@ public class ProcessStatsUi extends PreferenceFragment
                 mStats.mMemFactor, mStats.mStartTime, now);
         if (DEBUG) Log.d(TAG, "Total time of stats: " + makeDuration(mTotalTime));
 
-        long[] memTimes = new long[ProcessStats.ADJ_MEM_FACTOR_COUNT];
+        for (int i=0; i<mMemTimes.length; i++) {
+            mMemTimes[i] = 0;
+        }
         for (int iscreen=0; iscreen<ProcessStats.ADJ_COUNT; iscreen+=ProcessStats.ADJ_SCREEN_MOD) {
             for (int imem=0; imem<ProcessStats.ADJ_MEM_FACTOR_COUNT; imem++) {
                 int state = imem+iscreen;
-                memTimes[imem] += mStats.mMemFactorDurations[state];
+                mMemTimes[imem] += mStats.mMemFactorDurations[state];
             }
         }
 
@@ -421,31 +450,89 @@ public class ProcessStatsUi extends PreferenceFragment
 
         LinearColorPreference colors = new LinearColorPreference(getActivity());
         colors.setOrder(-1);
-        colors.setOnRegionTappedListener(this);
         switch (mMemRegion) {
             case LinearColorBar.REGION_RED:
-                colors.setColoredRegions(LinearColorBar.REGION_RED);
+                memTotalTime = mMemTimes[ProcessStats.ADJ_MEM_FACTOR_CRITICAL];
-                memTotalTime = memTimes[ProcessStats.ADJ_MEM_FACTOR_CRITICAL];
                 memStates = RED_MEM_STATES;
                 break;
             case LinearColorBar.REGION_YELLOW:
-                colors.setColoredRegions(LinearColorBar.REGION_RED
+                memTotalTime = mMemTimes[ProcessStats.ADJ_MEM_FACTOR_CRITICAL]
-                        | LinearColorBar.REGION_YELLOW);
+                        + mMemTimes[ProcessStats.ADJ_MEM_FACTOR_LOW]
-                memTotalTime = memTimes[ProcessStats.ADJ_MEM_FACTOR_CRITICAL]
+                        + mMemTimes[ProcessStats.ADJ_MEM_FACTOR_MODERATE];
-                        + memTimes[ProcessStats.ADJ_MEM_FACTOR_LOW]
-                        + memTimes[ProcessStats.ADJ_MEM_FACTOR_MODERATE];
                 memStates = YELLOW_MEM_STATES;
                 break;
             default:
-                colors.setColoredRegions(LinearColorBar.REGION_ALL);
                 memTotalTime = mTotalTime;
                 memStates = ProcessStats.ALL_MEM_ADJ;
                 break;
         }
-        colors.setRatios(memTimes[ProcessStats.ADJ_MEM_FACTOR_CRITICAL] / (float)mTotalTime,
+        colors.setColoredRegions(LinearColorBar.REGION_RED);
-                (memTimes[ProcessStats.ADJ_MEM_FACTOR_LOW]
+
-                        + memTimes[ProcessStats.ADJ_MEM_FACTOR_MODERATE]) / (float)mTotalTime,
+        // Compute memory badness for chart color.
-                memTimes[ProcessStats.ADJ_MEM_FACTOR_NORMAL] / (float)mTotalTime);
+        int[] badColors = com.android.settings.Utils.BADNESS_COLORS;
+        long timeGood = mMemTimes[ProcessStats.ADJ_MEM_FACTOR_NORMAL];
+        timeGood += (mMemTimes[ProcessStats.ADJ_MEM_FACTOR_MODERATE]*2)/3;
+        timeGood += mMemTimes[ProcessStats.ADJ_MEM_FACTOR_LOW]/3;
+        float memBadness = ((float)timeGood)/mTotalTime;
+        int badnessColor = badColors[1 + Math.round(memBadness*(badColors.length-2))];
+        colors.setColors(badnessColor, badnessColor, badnessColor);
+
+        ProcessStats.TotalMemoryUseCollection totalMem = new ProcessStats.TotalMemoryUseCollection(
+                ProcessStats.ALL_SCREEN_ADJ, memStates);
+        mStats.computeTotalMemoryUse(totalMem, now);
+        double freeWeight = totalMem.sysMemFreeWeight + totalMem.sysMemCachedWeight;
+        double usedWeight = totalMem.sysMemKernelWeight + totalMem.sysMemKernelWeight
+                + totalMem.sysMemZRamWeight;
+        mMemCachedWeight = totalMem.sysMemCachedWeight;
+        mMemFreeWeight = totalMem.sysMemFreeWeight;
+        mMemZRamWeight = totalMem.sysMemZRamWeight;
+        mMemKernelWeight = totalMem.sysMemKernelWeight;
+        mMemNativeWeight = totalMem.sysMemNativeWeight;
+        for (int i=0; i<ProcessStats.STATE_COUNT; i++) {
+            if (i == ProcessStats.STATE_SERVICE_RESTARTING) {
+                // These don't really run.
+                mMemStateWeights[i] = 0;
+            } else {
+                mMemStateWeights[i] = totalMem.processStateWeight[i];
+                if (i >= ProcessStats.STATE_HOME) {
+                    freeWeight += totalMem.processStateWeight[i];
+                } else {
+                    usedWeight += totalMem.processStateWeight[i];
+                }
+            }
+        }
+        mMemTotalWeight = freeWeight + usedWeight;
+        float usedRatio = (float)(usedWeight/(freeWeight+usedWeight));
+        colors.setRatios(usedRatio, 0, 1-usedRatio);
+
+        if (false) {
+            colors.setOnRegionTappedListener(this);
+            switch (mMemRegion) {
+                case LinearColorBar.REGION_RED:
+                    colors.setColoredRegions(LinearColorBar.REGION_RED);
+                    memTotalTime = mMemTimes[ProcessStats.ADJ_MEM_FACTOR_CRITICAL];
+                    memStates = RED_MEM_STATES;
+                    break;
+                case LinearColorBar.REGION_YELLOW:
+                    colors.setColoredRegions(LinearColorBar.REGION_RED
+                            | LinearColorBar.REGION_YELLOW);
+                    memTotalTime = mMemTimes[ProcessStats.ADJ_MEM_FACTOR_CRITICAL]
+                            + mMemTimes[ProcessStats.ADJ_MEM_FACTOR_LOW]
+                            + mMemTimes[ProcessStats.ADJ_MEM_FACTOR_MODERATE];
+                    memStates = YELLOW_MEM_STATES;
+                    break;
+                default:
+                    colors.setColoredRegions(LinearColorBar.REGION_ALL);
+                    memTotalTime = mTotalTime;
+                    memStates = ProcessStats.ALL_MEM_ADJ;
+                    break;
+            }
+            colors.setRatios(mMemTimes[ProcessStats.ADJ_MEM_FACTOR_CRITICAL] / (float)mTotalTime,
+                    (mMemTimes[ProcessStats.ADJ_MEM_FACTOR_LOW]
+                            + mMemTimes[ProcessStats.ADJ_MEM_FACTOR_MODERATE]) / (float)mTotalTime,
+                    mMemTimes[ProcessStats.ADJ_MEM_FACTOR_NORMAL] / (float)mTotalTime);
+        }
+
         mAppListGroup.addPreference(colors);
 
         ProcessStats.ProcessDataCollection totals = new ProcessStats.ProcessDataCollection(

src/com/android/settings/fuelgauge/BatteryHistoryChart.java

@@ -362,10 +362,7 @@ public class BatteryHistoryChart extends View {
         mGpsOnPaint.setStyle(Paint.Style.STROKE);
         mWifiRunningPaint.setStyle(Paint.Style.STROKE);
         mCpuRunningPaint.setStyle(Paint.Style.STROKE);
-        mPhoneSignalChart.setColors(new int[] {
+        mPhoneSignalChart.setColors(com.android.settings.Utils.BADNESS_COLORS);
-                0x00000000, 0xffc43828, 0xffe54918, 0xfff47b00,
-                0xfffabf2c, 0xff679e37, 0xff0a7f42
-        });
         mDebugRectPaint.setARGB(255, 255, 0, 0);
         mDebugRectPaint.setStyle(Paint.Style.STROKE);
         mScreenOnPaint.setColor(0xFF009688);