Add battery history details activity.

Adds a full-screen version of the battery history visualization,
which you can get to by tapping on the battery history chart in
the summary screen.

Change-Id: Ibca5ef3d0883ff6ffa80b6ddca3c8ac838c85842

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

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2009 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.fuelgauge;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.os.Parcel;
+
+import com.android.internal.os.BatteryStatsImpl;
+import com.android.settings.R;
+
+public class BatteryHistoryDetail extends Activity {
+    public static final String EXTRA_STATS = "stats";
+
+    private BatteryStatsImpl mStats;
+
+    @Override
+    protected void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+        byte[] data = getIntent().getByteArrayExtra(EXTRA_STATS);
+        Parcel parcel = Parcel.obtain();
+        parcel.unmarshall(data, 0, data.length);
+        parcel.setDataPosition(0);
+        setContentView(R.layout.preference_batteryhistory);
+        mStats = com.android.internal.os.BatteryStatsImpl.CREATOR
+                .createFromParcel(parcel);
+        BatteryHistoryChart chart = (BatteryHistoryChart)findViewById(
+                R.id.battery_history_chart);
+        chart.setStats(mStats);
+    }
+}