Polish some behaviors of the battery saver schedule screen

This CL removes the line that was showing between the radio
buttons and the seek bar. Additionally it makes it so the seekbar
updates continuously as a user moves it and fixes a visual bug
where it would show 5% regardless of what the user had set it to
when exiting then re-entering the screen.

Test: visual
Change-Id: Icdb9cafe2bdda03d94230d1c8538f4c322b050e9
Fixes: 121388626
Fixes: 121211075
diff --git a/src/com/android/settings/fuelgauge/batterysaver/BatterySaverScheduleSeekBarController.java b/src/com/android/settings/fuelgauge/batterysaver/BatterySaverScheduleSeekBarController.java
index 215f400..6c11576 100644
--- a/src/com/android/settings/fuelgauge/batterysaver/BatterySaverScheduleSeekBarController.java
+++ b/src/com/android/settings/fuelgauge/batterysaver/BatterySaverScheduleSeekBarController.java
@@ -54,9 +54,11 @@
         mContext = context;
         mSeekBarPreference = new SeekBarPreference(context);
         mSeekBarPreference.setOnPreferenceChangeListener(this);
-        mSeekBarPreference.setMax(BatterySaverScheduleSeekBarController.MAX_SEEKBAR_VALUE);
-        mSeekBarPreference.setMin(BatterySaverScheduleSeekBarController.MIN_SEEKBAR_VALUE);
+        mSeekBarPreference.setContinuousUpdates(true);
+        mSeekBarPreference.setMax(MAX_SEEKBAR_VALUE);
+        mSeekBarPreference.setMin(MIN_SEEKBAR_VALUE);
         mSeekBarPreference.setKey(KEY_BATTERY_SAVER_SEEK_BAR);
+        updateSeekBar();
     }
 
     @Override
@@ -83,11 +85,12 @@
             if (threshold <= 0) {
                 mSeekBarPreference.setVisible(false);
             } else {
+                final int currentSeekbarValue = Math.max(threshold / 5, MIN_SEEKBAR_VALUE);
                 mSeekBarPreference.setVisible(true);
-                mSeekBarPreference.setProgress(MIN_SEEKBAR_VALUE);
+                mSeekBarPreference.setProgress(currentSeekbarValue);
                 mSeekBarPreference.setTitle(mContext.getString(
                         R.string.battery_saver_seekbar_title,
-                        Utils.formatPercentage(MIN_SEEKBAR_VALUE * 5)));
+                        Utils.formatPercentage(currentSeekbarValue * 5)));
             }
         } else {
             mSeekBarPreference.setVisible(false);
diff --git a/src/com/android/settings/fuelgauge/batterysaver/BatterySaverScheduleSettings.java b/src/com/android/settings/fuelgauge/batterysaver/BatterySaverScheduleSettings.java
index 6e9c711..bfd36f3 100644
--- a/src/com/android/settings/fuelgauge/batterysaver/BatterySaverScheduleSettings.java
+++ b/src/com/android/settings/fuelgauge/batterysaver/BatterySaverScheduleSettings.java
@@ -17,10 +17,14 @@
 package com.android.settings.fuelgauge.batterysaver;
 
 import android.content.Context;
+import android.graphics.Color;
+import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.os.Bundle;
 import android.text.TextUtils;
 import android.view.View;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.preference.PreferenceScreen;
 import com.android.settings.widget.RadioButtonPickerFragment;
 import com.android.settings.R;
@@ -59,6 +63,13 @@
     }
 
     @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        setDivider(new ColorDrawable(Color.TRANSPARENT));
+        setDividerHeight(0);
+    }
+
+    @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
     }