diff --git a/src/main/java/org/droidupnp/view/ContentDirectoryFragment.java b/src/main/java/org/droidupnp/view/ContentDirectoryFragment.java
index a8fdfd5..a183537 100644
--- a/src/main/java/org/droidupnp/view/ContentDirectoryFragment.java
+++ b/src/main/java/org/droidupnp/view/ContentDirectoryFragment.java
@@ -79,7 +79,11 @@ public void updateSearchVisibility()
 			a.runOnUiThread(new Runnable() {
 				@Override
 				public void run() {
-					Main.setSearchVisibility(contentDirectoryCommand!=null && contentDirectoryCommand.isSearchAvailable());
+					try {
+						Main.setSearchVisibility(contentDirectoryCommand!=null && contentDirectoryCommand.isSearchAvailable());
+					} catch (Exception e) {
+						e.printStackTrace();
+					}
 				}
 			});
 		}
@@ -310,8 +314,12 @@ public Void call() throws java.lang.Exception {
 				a.runOnUiThread(new Runnable() {
 					@Override
 					public void run() {
-						setListShown(true);
-						mPullToRefreshLayout.setRefreshComplete();
+						try {
+							setListShown(true);
+							mPullToRefreshLayout.setRefreshComplete();
+						} catch (Exception e) {
+							e.printStackTrace();
+						}
 					}
 				});
 			}
@@ -341,10 +349,14 @@ public Void call() throws java.lang.Exception
 				a.runOnUiThread(new Runnable() {
 					@Override
 					public void run() {
-						// Empty the list
-						contentList.clear();
-						// Fill the list
-						contentList.addAll(content);
+						try {
+							// Empty the list
+							contentList.clear();
+							// Fill the list
+							contentList.addAll(content);
+						} catch (Exception e) {
+							e.printStackTrace();
+						}
 					}
 				});
 			}
@@ -364,9 +376,13 @@ public synchronized void refresh()
 			a.runOnUiThread(new Runnable() {
 				@Override
 				public void run() {
-					setListShown(false);
-					mPullToRefreshLayout.setRefreshComplete();
-					mPullToRefreshLayout.setRefreshing(true);
+					try {
+						setListShown(false);
+						mPullToRefreshLayout.setRefreshComplete();
+						mPullToRefreshLayout.setRefreshing(true);
+					} catch (Exception e) {
+						e.printStackTrace();
+					}
 				}
 			});
 		}
@@ -488,15 +504,19 @@ private void launchURI(final IDIDLItem uri)
 				a.runOnUiThread(new Runnable(){
 					@Override
 					public void run() {
-						RendererDialog rendererDialog = new RendererDialog();
-						rendererDialog.setCallback(new Callable<Void>() {
-							@Override
-							public Void call() throws Exception {
-								launchURIRenderer(uri);
-								return null;
-							}
-						});
-						rendererDialog.show(getActivity().getFragmentManager(), "RendererDialog");
+						try {
+							RendererDialog rendererDialog = new RendererDialog();
+							rendererDialog.setCallback(new Callable<Void>() {
+								@Override
+								public Void call() throws Exception {
+									launchURIRenderer(uri);
+									return null;
+								}
+							});
+							rendererDialog.show(getActivity().getFragmentManager(), "RendererDialog");
+						} catch (Exception e) {
+							e.printStackTrace();
+						}
 					}
 				});
 			}
diff --git a/src/main/java/org/droidupnp/view/RendererFragment.java b/src/main/java/org/droidupnp/view/RendererFragment.java
index ad4db54..32d3f96 100644
--- a/src/main/java/org/droidupnp/view/RendererFragment.java
+++ b/src/main/java/org/droidupnp/view/RendererFragment.java
@@ -75,15 +75,21 @@ public RendererFragment()
 
 	public void hide()
 	{
-		getActivity().findViewById(R.id.progressBar).setVisibility(View.INVISIBLE);
-		getActivity().findViewById(R.id.separator).setVisibility(View.INVISIBLE);
+		Activity a = getActivity();
+		if (a==null)
+			return;
+		a.findViewById(R.id.progressBar).setVisibility(View.INVISIBLE);
+		a.findViewById(R.id.separator).setVisibility(View.INVISIBLE);
 		getFragmentManager().beginTransaction().hide(this).commit();
 	}
 
 	public void show()
 	{
-		getActivity().findViewById(R.id.progressBar).setVisibility(View.VISIBLE);
-		getActivity().findViewById(R.id.separator).setVisibility(View.VISIBLE);
+		Activity a = getActivity();
+		if (a==null)
+			return;
+		a.findViewById(R.id.progressBar).setVisibility(View.VISIBLE);
+		a.findViewById(R.id.separator).setVisibility(View.VISIBLE);
 		getFragmentManager().beginTransaction().show(this).commit();
 	}
 
@@ -164,7 +170,11 @@ public void startControlPoint()
 					@Override
 					public void run()
 					{
-						hide();
+						try {
+							hide();
+						} catch (Exception e) {
+							e.printStackTrace();
+						}
 					}
 				});
 			}
@@ -209,40 +219,45 @@ public void updateRenderer()
 				@Override
 				public void run()
 				{
-					show();
+					try {
+						show();
 
-					TextView title = (TextView) a.findViewById(R.id.title);
-					TextView artist = (TextView) a.findViewById(R.id.artist);
-					SeekBar seek = (SeekBar) a.findViewById(R.id.progressBar);
-					SeekBar volume = (SeekBar) a.findViewById(R.id.volume);
-					TextView durationElapse = (TextView) a.findViewById(R.id.trackDurationElapse);
+						TextView title = (TextView) a.findViewById(R.id.title);
+						TextView artist = (TextView) a.findViewById(R.id.artist);
+						SeekBar seek = (SeekBar) a.findViewById(R.id.progressBar);
+						SeekBar volume = (SeekBar) a.findViewById(R.id.volume);
+						TextView durationElapse = (TextView) a.findViewById(R.id.trackDurationElapse);
 
-					if (title == null || artist == null || seek == null || duration == null || durationElapse == null)
-						return;
+						if (title == null || artist == null || seek == null || duration == null || durationElapse == null)
+							return;
 
-					if (durationRemaining)
-						duration.setText(rendererState.getRemainingDuration());
-					else
-						duration.setText(rendererState.getDuration());
+						if (durationRemaining)
+							duration.setText(rendererState.getRemainingDuration());
+						else
+							duration.setText(rendererState.getDuration());
 
-					durationElapse.setText(rendererState.getPosition());
+						durationElapse.setText(rendererState.getPosition());
 
-					seek.setProgress(rendererState.getElapsedPercent());
+						seek.setProgress(rendererState.getElapsedPercent());
 
-					title.setText(rendererState.getTitle());
-					artist.setText(rendererState.getArtist());
+						title.setText(rendererState.getTitle());
+						artist.setText(rendererState.getArtist());
 
-					if (rendererState.getState() == RendererState.State.PLAY)
-						play_pauseButton.setImageResource(R.drawable.pause);
-					else
-						play_pauseButton.setImageResource(R.drawable.play);
+						if (rendererState.getState() == RendererState.State.PLAY)
+							play_pauseButton.setImageResource(R.drawable.pause);
+						else
+							play_pauseButton.setImageResource(R.drawable.play);
 
-					if (rendererState.isMute())
-						volumeButton.setImageResource(R.drawable.volume_mute);
-					else
-						volumeButton.setImageResource(R.drawable.volume);
+						if (rendererState.isMute())
+							volumeButton.setImageResource(R.drawable.volume_mute);
+						else
+							volumeButton.setImageResource(R.drawable.volume);
 
-					volume.setProgress(rendererState.getVolume());
+						volume.setProgress(rendererState.getVolume());
+
+					} catch (Exception e) {
+						e.printStackTrace();
+					}
 				}
 			});
 
diff --git a/src/main/java/org/droidupnp/view/UpnpDeviceListFragment.java b/src/main/java/org/droidupnp/view/UpnpDeviceListFragment.java
index b3ca165..2a16d2b 100644
--- a/src/main/java/org/droidupnp/view/UpnpDeviceListFragment.java
+++ b/src/main/java/org/droidupnp/view/UpnpDeviceListFragment.java
@@ -124,23 +124,27 @@ public void addedDevice(IUpnpDevice device)
 				@Override
 				public void run()
 				{
-					int position = list.getPosition(d);
-					if (position >= 0)
-					{
-						// Device already in the list, re-set new value at same position
-						list.remove(d);
-						list.insert(d, position);
-					}
-					else
-					{
-						list.add(d);
-					}
-					if (isSelected(d.getDevice()))
-					{
-						position = list.getPosition(d);
-						getListView().setItemChecked(position, true);
-
-						Log.i(TAG, d.toString() + " is selected at position " + position);
+					try {
+						int position = list.getPosition(d);
+						if (position >= 0)
+						{
+							// Device already in the list, re-set new value at same position
+							list.remove(d);
+							list.insert(d, position);
+						}
+						else
+						{
+							list.add(d);
+						}
+						if (isSelected(d.getDevice()))
+						{
+							position = list.getPosition(d);
+							getListView().setItemChecked(position, true);
+
+							Log.i(TAG, d.toString() + " is selected at position " + position);
+						}
+					} catch (Exception e) {
+						e.printStackTrace();
 					}
 				}
 			});
@@ -158,8 +162,12 @@ public void removedDevice(IUpnpDevice device)
 				@Override
 				public void run()
 				{
-					// Remove device from list
-					list.remove(d);
+					try {
+						// Remove device from list
+						list.remove(d);
+					} catch (Exception e) {
+						e.printStackTrace();
+					}
 				}
 			});
 	}