fixed bugs

removed some error reporting in cases where the errors are somewhat expected and handled

src/Kp2aBusinessLogic/Io/AndroidContentStorage.cs

@@ -165,7 +165,7 @@ namespace keepass2android.Io
 			}
 			catch (Exception e)
 			{
-				Kp2aLog.LogUnexpectedError(e);
+				Kp2aLog.Log(e.ToString());
 
 				return false;
 			}
@@ -239,7 +239,7 @@ namespace keepass2android.Io
 					}
 					else return false;
 				}
-				else throw new Exception("couldn't move to first result element");
+				else throw new Exception("couldn't move to first result element: " + (cursor == null) + uri.ToString());
 			}
 			catch (Exception e)
 			{

src/Kp2aBusinessLogic/Io/CachingFileStorage.cs

@@ -103,7 +103,7 @@ namespace keepass2android.Io
 			return _streamCacheDir + iocAsHexString;
 		}
 
-		private bool IsCached(IOConnectionInfo ioc)
+		public bool IsCached(IOConnectionInfo ioc)
 		{
 			return File.Exists(CachedFilePath(ioc))
 				&& File.Exists(VersionFilePath(ioc))

src/Kp2aBusinessLogic/SelectStorageLocationActivityBase.cs

@@ -135,7 +135,7 @@ namespace keepass2android
 								}
 								catch (Exception e)
 								{
-									Kp2aLog.LogUnexpectedError(e);
+									Kp2aLog.Log(e.ToString());
 								}
 								
 							}

src/Kp2aBusinessLogic/database/Database.cs

@@ -122,13 +122,14 @@ namespace keepass2android
 				Root = pwDatabase.RootGroup;
 				PopulateGlobals(Root);
 
-				Loaded = true;
+				
 				KpDatabase = pwDatabase;
 				SearchHelper = new SearchDbHelper(app);
 
 				_databaseFormat = databaseFormat;
 
 				CanWrite = databaseFormat.CanWrite && !fileStorage.IsReadOnly(iocInfo);
+				Loaded = true;
 			}
 			catch (Exception)
 			{
@@ -203,6 +204,8 @@ namespace keepass2android
 
 		public PwGroup Search(SearchParameters searchParams, IDictionary<PwUuid, KeyValuePair<string, string>> resultContexts)
 		{
+			if (SearchHelper == null)
+				throw new Exception("SearchHelper is null");
 			return SearchHelper.Search(this, searchParams, resultContexts);
 		}
 
@@ -273,6 +276,8 @@ namespace keepass2android
 		}
 		
 		public void Clear() {
+			_loaded = false; 
+			
 			Groups.Clear();
 			Entries.Clear();
 			Dirty.Clear();
@@ -280,7 +285,7 @@ namespace keepass2android
 			
 			Root = null;
 			KpDatabase = null;
-			_loaded = false;
+			
 			CanWrite = true;
 			_reloadRequested = false;
 			OtpAuxFileIoc = null;

src/Kp2aBusinessLogic/database/KdbDatabaseFormat.cs

@@ -83,6 +83,8 @@ namespace keepass2android
 			}  
 			catch (Java.Lang.Exception e)
 			{
+				if (e.Message == "Invalid key!")
+					throw new InvalidCompositeKeyException();
 				throw new Exception(e.LocalizedMessage ??
 				e.Message ??
 				e.GetType().Name, e);