Merge "Update Battery Saver schedule to add order to seekbar" into qt-dev

src/com/android/settings/fuelgauge/batterysaver/BatterySaverScheduleSeekBarController.java

@@ -100,6 +100,9 @@ public class BatterySaverScheduleSeekBarController implements
     }
 
     public void addToScreen(PreferenceScreen screen) {
+        // makes sure it gets added after the preferences if called due to first time battery
+        // saver message
+        mSeekBarPreference.setOrder(5);
         screen.addPreference(mSeekBarPreference);
     }
 }

src/com/android/settings/fuelgauge/batterysaver/BatterySaverScheduleSettings.java

@@ -17,15 +17,20 @@
 package com.android.settings.fuelgauge.batterysaver;
 
 import android.content.Context;
+import android.database.ContentObserver;
 import android.graphics.Color;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
+import android.net.Uri;
 import android.os.Bundle;
+import android.os.Handler;
+import android.provider.Settings;
 import android.text.TextUtils;
 import android.view.View;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.annotation.VisibleForTesting;
 import androidx.preference.PreferenceScreen;
 
 import com.android.settings.R;
@@ -51,8 +56,18 @@ import java.util.List;
 public class BatterySaverScheduleSettings extends RadioButtonPickerFragment {
 
     public BatterySaverScheduleRadioButtonsController mRadioButtonController;
+    @VisibleForTesting
+    Context mContext;
     private BatterySaverScheduleSeekBarController mSeekBarController;
 
+    @VisibleForTesting
+    final ContentObserver mSettingsObserver = new ContentObserver(new Handler()) {
+        @Override
+        public void onChange(boolean selfChange, Uri uri) {
+            updateCandidates();
+        }
+    };
+
     @Override
     protected int getPreferenceScreenResId() {
         return R.xml.battery_saver_schedule_settings;
@@ -64,6 +79,16 @@ public class BatterySaverScheduleSettings extends RadioButtonPickerFragment {
         mSeekBarController = new BatterySaverScheduleSeekBarController(context);
         mRadioButtonController = new BatterySaverScheduleRadioButtonsController(
                 context, mSeekBarController);
+        mContext = context;
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        mContext.getContentResolver().registerContentObserver(
+                Settings.Secure.getUriFor(Settings.Secure.LOW_POWER_WARNING_ACKNOWLEDGED),
+                false,
+                mSettingsObserver);
     }
 
     @Override
@@ -78,6 +103,12 @@ public class BatterySaverScheduleSettings extends RadioButtonPickerFragment {
         super.onCreate(savedInstanceState);
     }
 
+    @Override
+    public void onPause() {
+        mContext.getContentResolver().unregisterContentObserver(mSettingsObserver);
+        super.onPause();
+    }
+
     @Override
     protected List<? extends CandidateInfo> getCandidates() {
         Context context = getContext();