Add new attributes to our notification

Bug: 17167221
Bug: 17128331
Change-Id: I6a045fd2398f40dbdc10c9d20993f7513e1f2cff

java/res/values/colors.xml

@@ -82,4 +82,6 @@
     <color name="setup_text_action">@android:color/holo_blue_light</color>
     <color name="setup_step_background">@android:color/background_light</color>
     <color name="setup_welcome_video_margin_color">#FFCCCCCC</color>
+    <!-- Accent color for the notification. We need to match this to the OS build -->
+    <color name="notification_accent_color">#FF607D8B</color>
 </resources>

java/src/com/android/inputmethod/compat/NotificationCompatUtils.java

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2014 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.inputmethod.compat;
+
+import android.app.Notification;
+import android.os.Build;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
+public class NotificationCompatUtils {
+    // Note that TextInfo.getCharSequence() is supposed to be available in API level 21 and later.
+    private static final Method METHOD_setColor =
+            CompatUtils.getMethod(Notification.Builder.class, "setColor", int.class);
+    private static final Method METHOD_setVisibility =
+            CompatUtils.getMethod(Notification.Builder.class, "setVisibility", int.class);
+    private static final Method METHOD_setCategory =
+            CompatUtils.getMethod(Notification.Builder.class, "setCategory", String.class);
+    private static final Method METHOD_setPriority =
+            CompatUtils.getMethod(Notification.Builder.class, "setPriority", int.class);
+    private static final Method METHOD_build =
+            CompatUtils.getMethod(Notification.Builder.class, "build");
+    private static final Field FIELD_VISIBILITY_SECRET =
+            CompatUtils.getField(Notification.class, "VISIBILITY_SECRET");
+    private static final int VISIBILITY_SECRET = null == FIELD_VISIBILITY_SECRET ? 0
+            : (Integer) CompatUtils.getFieldValue(null /* receiver */, null /* defaultValue */,
+                    FIELD_VISIBILITY_SECRET);
+    private static final Field FIELD_CATEGORY_RECOMMENDATION =
+            CompatUtils.getField(Notification.class, "CATEGORY_RECOMMENDATION");
+    private static final String CATEGORY_RECOMMENDATION = null == FIELD_CATEGORY_RECOMMENDATION ? ""
+            : (String) CompatUtils.getFieldValue(null /* receiver */, null /* defaultValue */,
+                    FIELD_CATEGORY_RECOMMENDATION);
+    private static final Field FIELD_PRIORITY_LOW =
+            CompatUtils.getField(Notification.class, "PRIORITY_LOW");
+    private static final int PRIORITY_LOW = null == FIELD_PRIORITY_LOW ? 0
+            : (Integer) CompatUtils.getFieldValue(null /* receiver */, null /* defaultValue */,
+                    FIELD_PRIORITY_LOW);
+
+    private NotificationCompatUtils() {
+        // This class is non-instantiable.
+    }
+
+    // Sets the accent color
+    public static void setColor(final Notification.Builder builder, final int color) {
+        CompatUtils.invoke(builder, null, METHOD_setColor, color);
+    }
+
+    public static void setVisibilityToSecret(final Notification.Builder builder) {
+        CompatUtils.invoke(builder, null, METHOD_setVisibility, VISIBILITY_SECRET);
+    }
+
+    public static void setCategoryToRecommendation(final Notification.Builder builder) {
+        CompatUtils.invoke(builder, null, METHOD_setCategory, CATEGORY_RECOMMENDATION);
+    }
+
+    public static void setPriorityToLow(final Notification.Builder builder) {
+        CompatUtils.invoke(builder, null, METHOD_setPriority, PRIORITY_LOW);
+    }
+
+    public static Notification build(final Notification.Builder builder) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+            // #build was added in API level 16, JELLY_BEAN
+            return (Notification) CompatUtils.invoke(builder, null, METHOD_build);
+        } else {
+            // #getNotification was deprecated in API level 16, JELLY_BEAN
+            return builder.getNotification();
+        }
+    }
+}

java/src/com/android/inputmethod/dictionarypack/UpdateHandler.java

@@ -31,12 +31,14 @@ import android.database.Cursor;
 import android.database.sqlite.SQLiteDatabase;
 import android.net.ConnectivityManager;
 import android.net.Uri;
+import android.os.Build;
 import android.os.ParcelFileDescriptor;
 import android.text.TextUtils;
 import android.util.Log;
 
 import com.android.inputmethod.compat.ConnectivityManagerCompatUtils;
 import com.android.inputmethod.compat.DownloadManagerCompatUtils;
+import com.android.inputmethod.compat.NotificationCompatUtils;
 import com.android.inputmethod.latin.R;
 import com.android.inputmethod.latin.utils.ApplicationUtils;
 import com.android.inputmethod.latin.utils.DebugLogUtils;
@@ -858,7 +860,7 @@ public final class UpdateHandler {
         final String language = (null == locale ? "" : locale.getDisplayLanguage());
         final String titleFormat = context.getString(R.string.dict_available_notification_title);
         final String notificationTitle = String.format(titleFormat, language);
-        final Notification notification = new Notification.Builder(context)
+        final Notification.Builder builder = new Notification.Builder(context)
                 .setAutoCancel(true)
                 .setContentIntent(notificationIntent)
                 .setContentTitle(notificationTitle)
@@ -866,8 +868,13 @@ public final class UpdateHandler {
                 .setTicker(notificationTitle)
                 .setOngoing(false)
                 .setOnlyAlertOnce(true)
-                .setSmallIcon(R.drawable.ic_notify_dictionary)
+                .setSmallIcon(R.drawable.ic_notify_dictionary);
-                .getNotification();
+        NotificationCompatUtils.setColor(builder,
+                context.getResources().getColor(R.color.notification_accent_color));
+        NotificationCompatUtils.setPriorityToLow(builder);
+        NotificationCompatUtils.setVisibilityToSecret(builder);
+        NotificationCompatUtils.setCategoryToRecommendation(builder);
+        final Notification notification = NotificationCompatUtils.build(builder);
         notificationManager.notify(DICT_AVAILABLE_NOTIFICATION_ID, notification);
     }