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copied!<p>I couldn't find an example either. The first thing I noticed was that the <code>EXTRA_LIVE_WALLPAPER_COMPONENT</code> doesn't require a String, but a <code>ComponentName</code>. My first cut with <code>ComponentName</code> looked like this:</p> <pre><code>ComponentName component = new ComponentName(getPackageName(), "LiveWallpaperService"); intent = new Intent(WallpaperManager.ACTION_CHANGE_LIVE_WALLPAPER); intent.putExtra(WallpaperManager.EXTRA_LIVE_WALLPAPER_COMPONENT, component); startActivityForResult(intent, REQUEST_SET_LIVE_WALLPAPER); </code></pre> <p>That didn't cut it, so I dug into the Android source code and found the following in <code>LiveWallpaperChange.java</code>:</p> <pre><code>Intent queryIntent = new Intent(WallpaperService.SERVICE_INTERFACE); queryIntent.setPackage(comp.getPackageName()); List<ResolveInfo> list = getPackageManager().queryIntentServices( queryIntent, PackageManager.GET_META_DATA); </code></pre> <p>A little debugging with the above chunk, and this is my final form...</p> <pre><code>ComponentName component = new ComponentName(getPackageName(), getPackageName() + ".LiveWallpaperService"); intent = new Intent(WallpaperManager.ACTION_CHANGE_LIVE_WALLPAPER); intent.putExtra(WallpaperManager.EXTRA_LIVE_WALLPAPER_COMPONENT, component); startActivityForResult(intent, REQUEST_SET_LIVE_WALLPAPER); </code></pre> <p>The key was in the second parameter to <code>ComponentName</code>.</p> <p>Technically, my final form supports a hierarchy of the new method first, followed by the old, followed by the Nook Tablet/Nook Color specific intent:</p> <pre><code>Intent intent; // try the new Jelly Bean direct android wallpaper chooser first try { ComponentName component = new ComponentName(getPackageName(), getPackageName() + ".LiveWallpaperService"); intent = new Intent(WallpaperManager.ACTION_CHANGE_LIVE_WALLPAPER); intent.putExtra(WallpaperManager.EXTRA_LIVE_WALLPAPER_COMPONENT, component); startActivityForResult(intent, REQUEST_SET_LIVE_WALLPAPER); } catch (android.content.ActivityNotFoundException e3) { // try the generic android wallpaper chooser next try { intent = new Intent(WallpaperManager.ACTION_LIVE_WALLPAPER_CHOOSER); startActivityForResult(intent, REQUEST_SET_LIVE_WALLPAPER); } catch (android.content.ActivityNotFoundException e2) { // that failed, let's try the nook intent try { intent = new Intent(); intent.setAction("com.bn.nook.CHANGE_WALLPAPER"); startActivity(intent); } catch (android.content.ActivityNotFoundException e) { // everything failed, let's notify the user showDialog(DIALOG_NO_WALLPAPER_PICKER); } } } </code></pre>

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