Add BatteryStatusFeatureProvider

This allows the battery header status line to be overridden.

Bug: 150239363
Test: implemented provider and changed status line text
Signed-off-by: Jeffrey Carlyle <jcarlyle@google.com>
Change-Id: I05bedbee641f087de5ee1b25a00724ce2de51f87

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

@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2020 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;
+
+/**
+ * Feature Provider used to retrieve battery status
+ */
+public interface BatteryStatusFeatureProvider {
+
+    /**
+     * Trigger a battery status update; return false if built-in status should be used.
+     */
+    boolean triggerBatteryStatusUpdate(
+            BatteryHeaderPreferenceController batteryHeaderPreferenceController, BatteryInfo info);
+}