Fixed bugs in the noStorage error handler

AndroidManifest.xml

@@ -88,6 +88,7 @@
                 <action android:name="de.podfetcher.feedupdatereceiver.refreshFeeds"/>
             </intent-filter>
         </receiver>
+        <activity android:name=".activity.StorageErrorActivity"></activity>
     </application>
 
 </manifest>

src/de/podfetcher/activity/StorageErrorActivity.java

@@ -10,6 +10,7 @@ import android.util.Log;
 import com.actionbarsherlock.app.SherlockActivity;
 
 import de.podfetcher.R;
+import de.podfetcher.util.StorageUtils;
 
 public class StorageErrorActivity extends SherlockActivity {
 	private static final String TAG = "StorageErrorActivity";
@@ -23,13 +24,27 @@ public class StorageErrorActivity extends SherlockActivity {
 	@Override
 	protected void onPause() {
 		super.onPause();
-		unregisterReceiver(mediaUpdate);
+		try {
+			unregisterReceiver(mediaUpdate);
+		} catch (IllegalArgumentException e) {
+
+		}
 	}
 
 	@Override
 	protected void onResume() {
 		super.onResume();
-		registerReceiver(mediaUpdate, new IntentFilter(Intent.ACTION_MEDIA_MOUNTED));
+		if (StorageUtils.storageAvailable()) {
+			leaveErrorState();
+		} else {
+			registerReceiver(mediaUpdate, new IntentFilter(
+					Intent.ACTION_MEDIA_MOUNTED));
+		}
+	}
+	
+	private void leaveErrorState() {
+		finish();
+		startActivity(new Intent(this, PodfetcherActivity.class));
 	}
 
 	private BroadcastReceiver mediaUpdate = new BroadcastReceiver() {
@@ -39,7 +54,7 @@ public class StorageErrorActivity extends SherlockActivity {
 			if (intent.getAction().equals(Intent.ACTION_MEDIA_MOUNTED)) {
 				if (intent.getBooleanExtra("read-only", true)) {
 					Log.d(TAG, "Media was mounted; Finishing activity");
-					finish();
+					leaveErrorState();
 				} else {
 					Log.d(TAG, "Media seemed to have been mounted read only");
 				}