Collapse notifications when multiple themes installed

Rather than flood the users notification drawer with every theme
installed, we can consolidate theme into one notification if more
than one theme was recently installed.  This will come in handy
when people restore backups from google play and all their themes
are installed.

Change-Id: I00c676769115a1cf44b22a138b32287c3794b9ca

3 files changed, 42 insertions, 4 deletions

diff --git a/src/com/cyngn/theme/chooser/ChooserActivity.java b/src/com/cyngn/theme/chooser/ChooserActivity.java
index 567cb85..6d08104 100644
--- a/src/com/cyngn/theme/chooser/ChooserActivity.java
+++ b/src/com/cyngn/theme/chooser/ChooserActivity.java
@@ -433,6 +433,9 @@ public class ChooserActivity extends FragmentActivity
 
         IntentFilter filter = new IntentFilter(Intent.ACTION_WALLPAPER_CHANGED);
         registerReceiver(mWallpaperChangeReceiver, filter);
+
+        // clear out the newly installed themes count
+        PreferenceUtils.setNewlyInstalledThemeCount(this, 0);
     }
 
     @Override
diff --git a/src/com/cyngn/theme/util/NotificationHelper.java b/src/com/cyngn/theme/util/NotificationHelper.java
index bd022cd..2a83478 100644
--- a/src/com/cyngn/theme/util/NotificationHelper.java
+++ b/src/com/cyngn/theme/util/NotificationHelper.java
@@ -22,6 +22,7 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
+import android.content.res.Resources;
 import android.graphics.BitmapFactory;
 import android.text.TextUtils;
 
@@ -29,6 +30,8 @@ import com.cyngn.theme.chooser.ChooserActivity;
 import com.cyngn.theme.chooser.R;
 
 public class NotificationHelper {
+    private static final int NOTIFICATION_ID = 0x434D5443;
+
     public static void postThemeInstalledNotification(Context context, String pkgName) {
         String themeName = null;
         try {
@@ -46,27 +49,44 @@ public class NotificationHelper {
             return;
         }
 
+        int themeCount = PreferenceUtils.getNewlyInstalledThemeCount(context) + 1;
+
         Intent intent = new Intent(context, ChooserActivity.class);
         intent.setAction(Intent.ACTION_MAIN);
         intent.putExtra("pkgName", pkgName);
         PendingIntent pi = PendingIntent.getActivity(context, 0, intent,
                 PendingIntent.FLAG_ONE_SHOT | PendingIntent.FLAG_CANCEL_CURRENT);
 
+        String title = null;
+        String content = null;
+        final Resources res = context.getResources();
+        if (themeCount == 1) {
+            title = String.format(res.getString(
+                    R.string.theme_installed_notification_title), themeName);
+            content = res.getString(R.string.theme_installed_notification_text);
+        } else {
+            title = String.format(res.getString(R.string.themes_installed_notification_title),
+                    themeCount);
+            content = String.format(res.getQuantityString(
+                            R.plurals.themes_installed_notification_text, themeCount -1),
+                            themeName, themeCount - 1);
+        }
         NotificationManager nm =
                 (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
         Notification notice = new Notification.Builder(context)
                 .setAutoCancel(true)
                 .setOngoing(false)
-                .setContentTitle(String.format(
-                        context.getString(R.string.theme_installed_notification_title), themeName))
-                .setContentText(context.getString(R.string.theme_installed_notification_text))
+                .setContentTitle(title)
+                .setContentText(content)
                 .setContentIntent(pi)
                 .setSmallIcon(R.drawable.ic_notifiy)
                 .setLargeIcon(BitmapFactory.decodeResource(context.getResources(),
                         R.drawable.ic_app_themes))
                 .setWhen(System.currentTimeMillis())
                 .build();
-        nm.notify(pkgName.hashCode(), notice);
+        if (themeCount > 1) notice.number = themeCount;
+        nm.notify(NOTIFICATION_ID, notice);
+        PreferenceUtils.setNewlyInstalledThemeCount(context, themeCount);
     }
 
     public static void cancelNotificationForPackage(Context context, String pkgName) {
diff --git a/src/com/cyngn/theme/util/PreferenceUtils.java b/src/com/cyngn/theme/util/PreferenceUtils.java
index edbf017..6486a03 100644
--- a/src/com/cyngn/theme/util/PreferenceUtils.java
+++ b/src/com/cyngn/theme/util/PreferenceUtils.java
@@ -13,6 +13,7 @@ import java.util.Set;
 public class PreferenceUtils {
     public static final String PREF_APPLIED_BASE_THEME = "applied_base_theme";
     public static final String PREF_UPDATED_THEMES = "updated_themes";
+    public static final String PREF_NEWLY_INSTALLED_THEME_COUNT = "newly_installed_theme_count";
 
     public static SharedPreferences getSharedPreferences(Context context) {
         if (context == null) return null;
@@ -73,4 +74,18 @@ public class PreferenceUtils {
         Set<String> updatedThemes = getUpdatedThemes(context);
         return updatedThemes != null && updatedThemes.contains(pkgName);
     }
+
+    public static int getNewlyInstalledThemeCount(Context context) {
+        SharedPreferences prefs = getSharedPreferences(context);
+        if (prefs == null) return 0;
+
+        return prefs.getInt(PREF_NEWLY_INSTALLED_THEME_COUNT, 0);
+    }
+
+    public static void setNewlyInstalledThemeCount(Context context, int count) {
+        SharedPreferences prefs = getSharedPreferences(context);
+        if (prefs != null) {
+            prefs.edit().putInt(PREF_NEWLY_INSTALLED_THEME_COUNT, count).apply();
+        }
+    }
 }