Dont reset chronometer when updating progressbar [fixes #1459]

src/android/ClearReceiver.java

@@ -28,7 +28,6 @@ import de.appplant.cordova.plugin.notification.receiver.AbstractClearReceiver;
 
 import static de.appplant.cordova.plugin.notification.Request.EXTRA_LAST;
 
-
 /**
  * The clear intent receiver is triggered when the user clears a
  * notification manually. It un-persists the cleared notification from the

src/android/LocalNotification.java

@@ -56,6 +56,7 @@ import static de.appplant.cordova.plugin.notification.Notification.Type.TRIGGERE
  * care of firing the event. When the event is processed, a notification is put
  * in the Android notification center and status bar.
  */
+@SuppressWarnings({"Convert2Diamond", "Convert2Lambda"})
 public class LocalNotification extends CordovaPlugin {
 
     // Reference to the web view for static access

src/android/notification/Builder.java

@@ -31,6 +31,7 @@ import android.support.v4.app.NotificationCompat;
 import android.support.v4.app.NotificationCompat.MessagingStyle.Message;
 import android.support.v4.media.app.NotificationCompat.MediaStyle;
 import android.support.v4.media.session.MediaSessionCompat;
+import android.util.SparseArray;
 
 import java.util.List;
 import java.util.Random;
@@ -45,8 +46,12 @@ import static de.appplant.cordova.plugin.notification.Notification.EXTRA_UPDATE;
  * Builder class for local notifications. Build fully configured local
  * notification specified by JSON object passed from JS side.
  */
+@SuppressWarnings("Convert2Diamond")
 public final class Builder {
 
+    // Cache for the builder instances
+    private static SparseArray<NotificationCompat.Builder> cache = null;
+
     // Application context passed by constructor
     private final Context context;
 
@@ -123,7 +128,7 @@ public final class Builder {
         extras.putInt(Notification.EXTRA_ID, options.getId());
         extras.putString(Options.EXTRA_SOUND, sound.toString());
 
-        builder = new NotificationCompat.Builder(context, Manager.CHANNEL_ID)
+        builder = findOrCreateBuilder()
                 .setDefaults(options.getDefaults())
                 .setExtras(extras)
                 .setOnlyAlertOnce(false)
@@ -148,6 +153,7 @@ public final class Builder {
         }
 
         if (options.isWithProgressBar()) {
+            cacheBuilder(builder);
             builder.setProgress(
                     options.getProgressMaxValue(),
                     options.getProgressValue(),
@@ -406,4 +412,35 @@ public final class Builder {
         return extras != null && extras.getBoolean(EXTRA_UPDATE, false);
     }
 
+    /**
+     * Returns a cached builder instance or creates a new one.
+     */
+    private NotificationCompat.Builder findOrCreateBuilder() {
+        NotificationCompat.Builder builder = null;
+        int key = options.getId();
+
+        if (cache != null) {
+            builder = cache.get(key);
+        }
+
+        if (builder == null) {
+            builder = new NotificationCompat.Builder(context, Manager.CHANNEL_ID);
+        }
+
+        return builder;
+    }
+
+    /**
+     * Caches the builder instance so it can be used later.
+     *
+     * @param builder The instance to cache.
+     */
+    private void cacheBuilder (NotificationCompat.Builder builder) {
+        if (cache == null) {
+            cache = new SparseArray<NotificationCompat.Builder>();
+        }
+
+        cache.put(options.getId(), builder);
+    }
+
 }