Android: show Album Art in notification area.

Instead of showing the small Rockbox clef logo show the Album Art if available.
If no Album Art is available show the clef logo about the same size as the
Album Art.

- The notification area process doesn't have permissions to access the SD card.
  Therefore the image needs to be read and set as Bitmap instead of simply
  setting the Uri to it as done in the widget.
- Passing a full sized image to the Notification Manager can cause issues
  (Rockbox UI hanging, notification not updating anymore, force closes). Scale
  down the image to the same size the launcher icon has to avoid this. This
  also makes the logo shown when no Album Art is available have the same size
  which looks nicer than having different sizes. Album Art images are allowed
  to be wider since there is enough room.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30629 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 31 insertions, 0 deletions

diff --git a/android/src/org/rockbox/Helper/RunForegroundManager.java b/android/src/org/rockbox/Helper/RunForegroundManager.java
index fbb6040005..5384e1b595 100644
--- a/android/src/org/rockbox/Helper/RunForegroundManager.java
+++ b/android/src/org/rockbox/Helper/RunForegroundManager.java
@@ -8,6 +8,10 @@ import android.app.NotificationManager;
 import android.app.PendingIntent;
 import android.app.Service;
 import android.content.Intent;
+import android.content.res.Resources;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.graphics.drawable.Drawable;
 import android.widget.RemoteViews;
 
 public class RunForegroundManager
@@ -20,6 +24,7 @@ public class RunForegroundManager
     private IRunForeground api;
     private Service mCurrentService;
     private Intent mWidgetUpdate;
+    private int iconheight;
 
     public RunForegroundManager(Service service)
     {
@@ -31,6 +36,11 @@ public class RunForegroundManager
         Intent intent = new Intent(service, RockboxActivity.class);
         intent = intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
 
+        /* retrieve height of launcher icon. Used to scale down album art. */
+        Resources resources = service.getResources();
+        Drawable draw = resources.getDrawable(R.drawable.launcher);
+        iconheight = draw.getIntrinsicHeight();
+
         mNotification = new Notification();
         mNotification.tickerText = service.getString(R.string.notification);
         mNotification.icon = R.drawable.notification;
@@ -87,6 +97,27 @@ public class RunForegroundManager
             mNotification.tickerText = title;
         else
             mNotification.tickerText = title+" - "+artist;
+
+        if (albumart != null) {
+            /* The notification area doesn't have permissions to access the SD card.
+             * Push the data as Bitmap instead of Uri. Scale down to size of
+             * launcher icon -- broadcasting the unscaled image may yield in
+             * too much data, causing UI hangs of Rockbox. */
+            Bitmap b = BitmapFactory.decodeFile(albumart);
+            if(b != null) {
+                /* scale width to keep aspect ratio -- height is the constraint */
+                int scaledwidth = Math.round(iconheight*((float)b.getWidth()/b.getHeight()));
+                views.setImageViewBitmap(R.id.artwork,
+                    Bitmap.createScaledBitmap(b, scaledwidth, iconheight, false));
+            }
+            else {
+                views.setImageViewResource(R.id.artwork, R.drawable.launcher);
+            }
+        }
+        else {
+            views.setImageViewResource(R.id.artwork, R.drawable.launcher);
+        }
+
         mNM.notify(R.string.notification, mNotification);
 
         mWidgetUpdate = new Intent("org.rockbox.TrackUpdateInfo");