Fix bug: When you browses up, the folder and files dissapears

src/com/owncloud/android/operations/SynchronizeFolderOperation.java

@@ -64,6 +64,11 @@ public class SynchronizeFolderOperation extends RemoteOperation {
     /** Id of the folder to synchronize in the local database */
     private long mParentId;
     
+    public long getParentId() {
+        return mParentId;
+    }
+
+
     /** Access to the local database */
     private DataStorageManager mStorageManager;
     

src/com/owncloud/android/ui/activity/FileDisplayActivity.java

@@ -948,7 +948,7 @@ OCFileListFragment.ContainerActivity, FileDetailFragment.ContainerActivity, OnNa
         cleanSecondFragment();
         
         // Sync Folder
-        syncFolderOperation(directory.getRemotePath(), directory.getFileId());
+        startSyncFolderOperation(directory.getRemotePath(), directory.getFileId());
         // Update folder size on DB
         getStorageManager().calculateFolderSize(directory.getParentId());
         
@@ -1174,9 +1174,12 @@ OCFileListFragment.ContainerActivity, FileDetailFragment.ContainerActivity, OnNa
      * @param result        Result of the synchronization.
      */
     private void onSynchronizeFolderOperationFinish(SynchronizeFolderOperation operation, RemoteOperationResult result) {
+        setSupportProgressBarIndeterminateVisibility(false);
         if (result.isSuccess()) {
-            refeshListOfFilesFragment();
-
+            DataStorageManager storageManager = getStorageManager();
+            OCFile parentDir = storageManager.getFileById(operation.getParentId());
+            
+            refreshListOfFilesFragment(parentDir);
         } else {
             try {
                 Toast msg = Toast.makeText(FileDisplayActivity.this, R.string.sync_file_fail_msg, Toast.LENGTH_LONG); 
@@ -1189,6 +1192,14 @@ OCFileListFragment.ContainerActivity, FileDetailFragment.ContainerActivity, OnNa
     }
 
 
+    private void refreshListOfFilesFragment(OCFile parentDir) {
+        OCFileListFragment fileListFragment = getListOfFilesFragment();
+        if (fileListFragment != null) { 
+            fileListFragment.listDirectory(parentDir);
+        }
+    }
+
+
     /**
      * Updates the view associated to the activity after the finish of an operation trying to remove a 
      * file. 
@@ -1374,9 +1385,10 @@ OCFileListFragment.ContainerActivity, FileDetailFragment.ContainerActivity, OnNa
         return null;
     }
     
-    public void syncFolderOperation(String remotePath, long parentId) {
-         long currentSyncTime = System.currentTimeMillis(); 
-        // perform folder synchronization
+    public void startSyncFolderOperation(String remotePath, long parentId) {
+        long currentSyncTime = System.currentTimeMillis(); 
+        setSupportProgressBarIndeterminateVisibility(true);
+       // perform folder synchronization
         RemoteOperation synchFolderOp = new SynchronizeFolderOperation(  remotePath, 
                                                                                     currentSyncTime, 
                                                                                     parentId, 

src/com/owncloud/android/ui/fragment/OCFileListFragment.java

@@ -129,18 +129,24 @@ public class OCFileListFragment extends ExtendedListFragment implements EditName
         
         if(mFile != null){
             DataStorageManager storageManager = mContainerActivity.getStorageManager();
-            parentDir = storageManager.getFileById(mFile.getParentId());
+            if (mFile.getParentId() == 0) {
+                parentDir = storageManager.getFileById(1);
+            }
+            else {
+                parentDir = storageManager.getFileById(mFile.getParentId());
+            }
             
             // Update folder size on DB
             storageManager.calculateFolderSize(mFile.getFileId());
             
-            mFile = parentDir;
-
+            mFile = parentDir;           
         }
-        listDirectory(parentDir);
-
+        
+        if (mFile != null) {
+            listDirectory(mFile);
 
-        mContainerActivity.syncFolderOperation(mFile.getRemotePath(), mFile.getParentId());
+            mContainerActivity.startSyncFolderOperation(mFile.getRemotePath(), mFile.getParentId());
+        }
    
     }
     
@@ -406,7 +412,7 @@ public class OCFileListFragment extends ExtendedListFragment implements EditName
 
         public void startImagePreview(OCFile file);
         
-        public void syncFolderOperation(String remotePath, long parentId);
+        public void startSyncFolderOperation(String remotePath, long parentId);
 
         /**
          * Getter for the current DataStorageManager in the container activity