Add Night display settings

Bug: 28615069 Change-Id: I2e8a374a00c06c06d419a6ff46cd3b5d544c1d3e
2016-06-21 18:32:04 -07:00
parent 96bc7b5d03
commit c7cd2982cd
7 changed files with 443 additions and 0 deletions
--- a/src/com/android/settings/display/NightDisplayPreference.java
+++ b/src/com/android/settings/display/NightDisplayPreference.java
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2016 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.display;
+
+import android.content.Context;
+import android.support.v7.preference.Preference;
+import android.util.AttributeSet;
+
+import com.android.internal.app.NightDisplayController;
+import com.android.settings.R;
+
+import java.text.DateFormat;
+import java.util.Calendar;
+import java.util.TimeZone;
+
+public class NightDisplayPreference extends Preference implements NightDisplayController.Callback {
+
+    private NightDisplayController mController;
+    private DateFormat mTimeFormatter;
+
+    public NightDisplayPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        mController = new NightDisplayController(context);
+        mTimeFormatter = android.text.format.DateFormat.getTimeFormat(context);
+        mTimeFormatter.setTimeZone(TimeZone.getTimeZone("UTC"));
+    }
+
+    @Override
+    public void onAttached() {
+        super.onAttached();
+
+        // Listen for changes only while attached.
+        mController.setListener(this);
+
+        // Update the summary since the state may have changed while not attached.
+        updateSummary();
+    }
+
+    @Override
+    public void onDetached() {
+        super.onDetached();
+
+        // Stop listening for state changes.
+        mController.setListener(null);
+    }
+
+    private String getFormattedTimeString(NightDisplayController.LocalTime localTime) {
+        final Calendar c = Calendar.getInstance();
+        c.setTimeZone(mTimeFormatter.getTimeZone());
+        c.set(Calendar.HOUR_OF_DAY, localTime.hourOfDay);
+        c.set(Calendar.MINUTE, localTime.minute);
+        c.set(Calendar.SECOND, 0);
+        c.set(Calendar.MILLISECOND, 0);
+        return mTimeFormatter.format(c.getTime());
+    }
+
+    private void updateSummary() {
+        final Context context = getContext();
+
+        final boolean isActivated = mController.isActivated();
+        final int autoMode = mController.getAutoMode();
+
+        final String autoModeSummary;
+        switch (autoMode) {
+            default:
+            case NightDisplayController.AUTO_MODE_DISABLED:
+                autoModeSummary = context.getString(isActivated
+                        ? R.string.night_display_summary_on_auto_mode_never
+                        : R.string.night_display_summary_off_auto_mode_never);
+                break;
+            case NightDisplayController.AUTO_MODE_CUSTOM:
+                if (isActivated) {
+                    autoModeSummary = context.getString(
+                            R.string.night_display_summary_on_auto_mode_custom,
+                            getFormattedTimeString(mController.getCustomEndTime()));
+                } else {
+                    autoModeSummary = context.getString(
+                            R.string.night_display_summary_off_auto_mode_custom,
+                            getFormattedTimeString(mController.getCustomStartTime()));
+                }
+                break;
+            case NightDisplayController.AUTO_MODE_TWILIGHT:
+                autoModeSummary = context.getString(isActivated
+                        ? R.string.night_display_summary_on_auto_mode_twilight
+                        : R.string.night_display_summary_off_auto_mode_twilight);
+                break;
+        }
+
+        final int summaryFormatResId = isActivated ? R.string.night_display_summary_on
+                : R.string.night_display_summary_off;
+        setSummary(context.getString(summaryFormatResId, autoModeSummary));
+    }
+
+    @Override
+    public void onActivated(boolean activated) {
+        updateSummary();
+    }
+
+    @Override
+    public void onAutoModeChanged(int autoMode) {
+        updateSummary();
+    }
+
+    @Override
+    public void onCustomStartTimeChanged(NightDisplayController.LocalTime startTime) {
+        updateSummary();
+    }
+
+    @Override
+    public void onCustomEndTimeChanged(NightDisplayController.LocalTime endTime) {
+        updateSummary();
+    }
+}