Implement battery percent styles (2/2)

Signed-off-by: Hưng Phan <phandinhhungvp2001@gmail.com>

res/values/cherish_arrays.xml

@@ -383,4 +383,15 @@
         <item>7</item>
         <item>5</item>
     </string-array>
+	
+	<string-array name="status_bar_battery_percentage_entries" translatable="false">
+        <item>@string/status_bar_battery_percentage_default</item>
+        <item>@string/status_bar_battery_percentage_text_inside</item>
+        <item>@string/status_bar_battery_percentage_text_next</item>
+    </string-array>
+     <string-array name="status_bar_battery_percentage_values" translatable="false">
+        <item>0</item>
+        <item>1</item>
+        <item>2</item>
+    </string-array>
 </resources>

res/values/cherish_strings.xml

@@ -485,4 +485,11 @@
     <string name="gaming_mode_title">Game space</string>
     <string name="gaming_mode_summary">Extra features for immersive gaming experience</string>
 	
+	<!-- Battery percentage -->
+    <string name="battery_style_category_title">Battery icon</string>
+    <string name="status_bar_battery_percentage_title">Battery percentage</string>
+    <string name="status_bar_battery_percentage_default">Hidden</string>
+    <string name="status_bar_battery_percentage_text_next">Next to the icon</string>
+    <string name="status_bar_battery_percentage_text_inside">Inside the icon</string>
+
 </resources>

res/xml/statusbar_battery.xml

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2016 Nitrogen 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.
+-->
+<PreferenceScreen
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:title="@string/battery_style_category_title"
+    xmlns:settings="http://schemas.android.com/apk/res/com.android.settings">
+
+    <ListPreference
+        android:key="status_bar_show_battery_percent"
+        android:title="@string/status_bar_battery_percentage_title"
+        android:dialogTitle="@string/status_bar_battery_percentage_title"
+        android:entries="@array/status_bar_battery_percentage_entries"
+        android:entryValues="@array/status_bar_battery_percentage_values" />
+</PreferenceScreen>

src/com/cherish/settings/fragments/StatusBarBattery.java

@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2012 The CyanogenMod 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.cherish.settings.fragments;
+
+import android.content.ContentResolver;
+import android.os.Bundle;
+import android.support.v7.preference.ListPreference;
+import android.support.v7.preference.Preference;
+import android.support.v7.preference.Preference.OnPreferenceChangeListener;
+import android.provider.Settings;
+
+import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+
+import com.android.settings.R;
+import com.android.settings.SettingsPreferenceFragment;
+
+public class StatusBarBattery extends SettingsPreferenceFragment implements
+        Preference.OnPreferenceChangeListener {
+
+    private static final String SHOW_BATTERY_PERCENT = "status_bar_show_battery_percent";
+
+    private ListPreference mStatusBarBatteryShowPercent;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        addPreferencesFromResource(R.xml.statusbar_battery);
+
+        ContentResolver resolver = getActivity().getContentResolver();
+
+        mStatusBarBatteryShowPercent =
+                (ListPreference) findPreference(SHOW_BATTERY_PERCENT);
+
+        int batteryShowPercent = Settings.System.getInt(resolver,
+                Settings.System.SHOW_BATTERY_PERCENT, 0);
+        mStatusBarBatteryShowPercent.setValue(String.valueOf(batteryShowPercent));
+        mStatusBarBatteryShowPercent.setSummary(mStatusBarBatteryShowPercent.getEntry());
+        mStatusBarBatteryShowPercent.setOnPreferenceChangeListener(this);
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return MetricsEvent.CHERISH_SETTINGS;
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        ContentResolver resolver = getActivity().getContentResolver();
+        if (preference == mStatusBarBatteryShowPercent) {
+            int batteryShowPercent = Integer.valueOf((String) newValue);
+            int index = mStatusBarBatteryShowPercent.findIndexOfValue((String) newValue);
+            Settings.System.putInt(
+                    resolver, Settings.System.SHOW_BATTERY_PERCENT, batteryShowPercent);
+            mStatusBarBatteryShowPercent.setSummary(
+                    mStatusBarBatteryShowPercent.getEntries()[index]);
+            return true;
+        }
+        return false;
+    }
+}