request permissions at runtime

use externalFilesDir when creating a database to make sure we don't need permissions here
revert Support Design library to previous version, had issues with 23.x

src/Kp2aBusinessLogic/Io/BuiltInFileStorage.cs

@@ -3,18 +3,25 @@ using System.Collections.Generic;
 using System.Globalization;
 using System.IO;
 using System.Net;
-using System.Net.Security;
 using System.Security;
+using Android;
+using Android.App;
 using Android.Content;
+using Android.Content.PM;
 using Android.OS;
-using Java.Security.Cert;
+using Java.IO;
 using KeePassLib.Serialization;
 using KeePassLib.Utility;
+using File = System.IO.File;
+using FileNotFoundException = System.IO.FileNotFoundException;
+using IOException = System.IO.IOException;
 
 namespace keepass2android.Io
 {
-	public class BuiltInFileStorage: IFileStorage
+	public class BuiltInFileStorage : IFileStorage, IPermissionRequestingFileStorage
 	{
+		private const string PermissionGrantedKey = "PermissionGranted";
+
 		public enum CertificateProblem :long
 		{
 			CertEXPIRED = 0x800B0101,
@@ -112,7 +119,8 @@ namespace keepass2android.Io
 
 		private void ConvertException(IOConnectionInfo ioc, WebException ex)
 		{
-			if ((ex.Response is HttpWebResponse) && (((HttpWebResponse) ex.Response).StatusCode == HttpStatusCode.NotFound))
+			var response = ex.Response as HttpWebResponse;
+			if ((response != null) && (response.StatusCode == HttpStatusCode.NotFound))
 			{
 				throw new FileNotFoundException(ex.Message, ioc.Path, ex);
 			}
@@ -241,6 +249,26 @@ namespace keepass2android.Io
 
 		public void PrepareFileUsage(IFileStorageSetupInitiatorActivity activity, IOConnectionInfo ioc, int requestCode, bool alwaysReturnSuccess)
 		{
+			//check if we need to request the external-storage-permission at runtime
+			if (ioc.IsLocalFile())
+			{
+				bool requiresPermission = !ioc.Path.StartsWith(activity.Activity.FilesDir.CanonicalPath);
+				
+				var extDirectory = activity.Activity.GetExternalFilesDir(null);
+				if ((extDirectory != null) && (ioc.Path.StartsWith(extDirectory.CanonicalPath)))
+					requiresPermission = false;
+
+				if (requiresPermission && (Build.VERSION.SdkInt >= BuildVersionCodes.M))
+				{
+					if (activity.Activity.CheckSelfPermission(Manifest.Permission.WriteExternalStorage) ==
+						Permission.Denied)
+					{
+						activity.StartFileUsageProcess(ioc, requestCode, alwaysReturnSuccess);
+						return;
+					}	
+				}
+				
+			}
 			Intent intent = new Intent();
 			activity.IocToIntent(intent, ioc);
 			activity.OnImmediateResult(requestCode, (int) FileStorageResults.FileUsagePrepared, intent);
@@ -251,24 +279,42 @@ namespace keepass2android.Io
 			//nothing to do, we're ready to go
 		}
 
-		public void OnCreate(IFileStorageSetupActivity activity, Bundle savedInstanceState)
+		public void OnCreate(IFileStorageSetupActivity fileStorageSetupActivity, Bundle savedInstanceState)
 		{
-			throw new NotImplementedException();
+			((Activity)fileStorageSetupActivity).RequestPermissions(new[] { Manifest.Permission.WriteExternalStorage }, 0);
 		}
 
 		public void OnResume(IFileStorageSetupActivity activity)
 		{
-			throw new NotImplementedException();
+			if (activity.State.ContainsKey(PermissionGrantedKey))
+			{
+				if (activity.State.GetBoolean(PermissionGrantedKey))
+				{
+					Intent data = new Intent();
+					data.PutExtra(FileStorageSetupDefs.ExtraIsForSave, activity.IsForSave);
+					data.PutExtra(FileStorageSetupDefs.ExtraPath, IocToPath(activity.Ioc));
+					((Activity) activity).SetResult((Result) FileStorageResults.FileUsagePrepared, data);
+					((Activity) activity).Finish();
+				}
+				else
+				{
+					Intent data = new Intent();
+					data.PutExtra(FileStorageSetupDefs.ExtraErrorMessage, "Permission denied. Please grant file access permission for this app.");
+					((Activity)activity).SetResult(Result.Canceled, data);
+					((Activity)activity).Finish();
+					
+				}
+			}
 		}
 
 		public void OnStart(IFileStorageSetupActivity activity)
 		{
-			throw new NotImplementedException();
+			
 		}
 
 		public void OnActivityResult(IFileStorageSetupActivity activity, int requestCode, int resultCode, Intent data)
 		{
-			throw new NotImplementedException();
+			
 		}
 
 		public string GetDisplayName(IOConnectionInfo ioc)
@@ -310,7 +356,7 @@ namespace keepass2android.Io
 			{
 				//test if we can open 
 				//http://www.doubleencore.com/2014/03/android-external-storage/#comment-1294469517
-				using (var writer = new Java.IO.FileOutputStream(ioc.Path, true))
+				using (var writer = new FileOutputStream(ioc.Path, true))
 				{
 					writer.Close();
 					return false; //we can write
@@ -358,5 +404,11 @@ namespace keepass2android.Io
 				return false;
 			}
 		}
+
+		public void OnRequestPermissionsResult(IFileStorageSetupActivity fileStorageSetupActivity, int requestCode,
+			string[] permissions, Permission[] grantResults)
+		{
+			fileStorageSetupActivity.State.PutBoolean(PermissionGrantedKey, grantResults[0] == Permission.Granted);
+		}
 	}
 }

src/Kp2aBusinessLogic/Io/CachingFileStorage.cs

@@ -5,6 +5,7 @@ using System.Net;
 using System.Security.Cryptography;
 using System.Text;
 using Android.Content;
+using Android.Content.PM;
 using Android.OS;
 using KeePassLib.Cryptography;
 using KeePassLib.Serialization;
@@ -59,7 +60,7 @@ namespace keepass2android.Io
 	/// Implements the IFileStorage interface as a proxy: A base storage is used as a remote storage. Local files are used to cache the
 	/// files on remote.
 	/// </summary>
-	public class CachingFileStorage : IFileStorage, IOfflineSwitchable
+	public class CachingFileStorage : IFileStorage, IOfflineSwitchable, IPermissionRequestingFileStorage
 	{
 		
 		protected readonly OfflineSwitchableFileStorage _cachedStorage;
@@ -618,5 +619,11 @@ namespace keepass2android.Io
 			get { return _cachedStorage.IsOffline; }
 			set { _cachedStorage.IsOffline = value; }
 		}
+
+		public void OnRequestPermissionsResult(IFileStorageSetupActivity fileStorageSetupActivity, int requestCode,
+			string[] permissions, Permission[] grantResults)
+		{
+			_cachedStorage.OnRequestPermissionsResult(fileStorageSetupActivity, requestCode, permissions, grantResults);
+		}
 	}
 }

src/Kp2aBusinessLogic/Io/IFileStorage.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using Android.Content;
+using Android.Content.PM;
 using Android.OS;
 using KeePassLib.Serialization;
 
@@ -22,7 +23,7 @@ namespace keepass2android.Io
 
 		public static String ExtraProcessName = "EXTRA_PROCESS_NAME";
 		public static String ExtraAlwaysReturnSuccess = "EXTRA_ALWAYS_RETURN_SUCCESS";
-		public static String ExtraPath = "PATH";
+		public static String ExtraPath = "fileName"; //match KP2A PasswordActivity Ioc-Path Extra key
 		public static String ExtraIsForSave = "IS_FOR_SAVE";
 		public static String ExtraErrorMessage = "EXTRA_ERROR_MESSAGE";
 
@@ -170,6 +171,11 @@ namespace keepass2android.Io
 		bool IsReadOnly(IOConnectionInfo ioc);
 	}
 
+	public interface IPermissionRequestingFileStorage
+	{
+		void OnRequestPermissionsResult(IFileStorageSetupActivity fileStorageSetupActivity, int requestCode, string[] permissions, Permission[] grantResults);
+	}
+
 	public interface IWriteTransaction: IDisposable
 	{
 		Stream OpenFile();

src/Kp2aBusinessLogic/Io/JavaFileStorage.cs

@@ -4,6 +4,7 @@ using System.IO;
 using System.Linq;
 using Android.App;
 using Android.Content;
+using Android.Content.PM;
 using Android.OS;
 using KeePassLib.Serialization;
 using KeePassLib.Utility;
@@ -16,7 +17,7 @@ using FileNotFoundException = Java.IO.FileNotFoundException;
 namespace keepass2android.Io
 {
 	#if !EXCLUDE_JAVAFILESTORAGE
-	public abstract class JavaFileStorage: IFileStorage
+	public abstract class JavaFileStorage: IFileStorage, IPermissionRequestingFileStorage
 	{
 		protected string Protocol { get { return _jfs.ProtocolId; } }
 
@@ -356,6 +357,12 @@ namespace keepass2android.Io
 			return ioc.Path;
 		}
 
+		public void OnRequestPermissionsResult(IFileStorageSetupActivity fileStorageSetupActivity, int requestCode,
+			string[] permissions, Permission[] grantResults)
+		{
+			_jfs.OnRequestPermissionsResult(((IJavaFileStorageFileStorageSetupActivity) fileStorageSetupActivity), requestCode,
+				permissions, grantResults.Select(p => (int)p).ToArray());
+		}
 	}
 #endif
 }

src/Kp2aBusinessLogic/Io/OfflineSwitchableFileStorage.cs

@@ -2,6 +2,7 @@ using System;
 using System.Collections.Generic;
 using System.IO;
 using Android.Content;
+using Android.Content.PM;
 using Android.OS;
 using KeePassLib.Serialization;
 
@@ -16,7 +17,7 @@ namespace keepass2android.Io
 	/// Encapsulates another IFileStorage. Allows to switch to offline mode by throwing
 	/// an exception when trying to read or write a file.
 	/// </summary>
-	public class OfflineSwitchableFileStorage : IFileStorage, IOfflineSwitchable
+	public class OfflineSwitchableFileStorage : IFileStorage, IOfflineSwitchable, IPermissionRequestingFileStorage
 	{
 		private readonly IFileStorage _baseStorage;
 		public bool IsOffline { get; set; }
@@ -179,6 +180,15 @@ namespace keepass2android.Io
 		{
 			return _baseStorage.IsReadOnly(ioc);
 		}
+
+	public void OnRequestPermissionsResult(IFileStorageSetupActivity fileStorageSetupActivity, int requestCode,
+		string[] permissions, Permission[] grantResults)
+	{
+		if (_baseStorage is IPermissionRequestingFileStorage)
+		{
+			((IPermissionRequestingFileStorage)_baseStorage).OnRequestPermissionsResult(fileStorageSetupActivity, requestCode, permissions, grantResults);
+		}
+	}
 	}
 
 	public class OfflineModeException : Exception

src/Kp2aBusinessLogic/Kp2aBusinessLogic.csproj

@@ -12,7 +12,8 @@
     <FileAlignment>512</FileAlignment>
     <AndroidResgenFile>Resources\Resource.Designer.cs</AndroidResgenFile>
     <GenerateSerializationAssemblies>Off</GenerateSerializationAssemblies>
-    <TargetFrameworkVersion>v5.0</TargetFrameworkVersion>
+    <TargetFrameworkVersion>v6.0</TargetFrameworkVersion>
+    <AndroidUseLatestPlatformSdk>False</AndroidUseLatestPlatformSdk>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>

src/java/JavaFileStorage/app/app.iml

@@ -85,7 +85,7 @@
       <excludeFolder url="file://$MODULE_DIR$/build/outputs" />
       <excludeFolder url="file://$MODULE_DIR$/build/tmp" />
     </content>
-    <orderEntry type="jdk" jdkName="Android API 21 Platform" jdkType="Android SDK" />
+    <orderEntry type="jdk" jdkName="Android API 23 Platform" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
     <orderEntry type="library" exported="" name="httpmime-4.0.3" level="project" />
     <orderEntry type="library" exported="" name="jsr305-1.3.9" level="project" />
@@ -104,8 +104,8 @@
     <orderEntry type="library" exported="" name="httpcore-4.0.1" level="project" />
     <orderEntry type="library" exported="" name="json_simple-1.1" level="project" />
     <orderEntry type="library" exported="" name="google-http-client-android-1.16.0-rc" level="project" />
-    <orderEntry type="library" exported="" name="google-http-client-gson-1.20.0" level="project" />
     <orderEntry type="library" exported="" name="gson-2.1" level="project" />
+    <orderEntry type="library" exported="" name="google-http-client-gson-1.20.0" level="project" />
     <orderEntry type="library" exported="" name="google-http-client-jackson-1.16.0-rc" level="project" />
     <orderEntry type="library" exported="" name="commons-logging-1.1.1" level="project" />
   </component>

src/java/JavaFileStorage/app/build.gradle

@@ -1,20 +1,20 @@
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 21
+    compileSdkVersion 23
-    buildToolsVersion "21.1.2"
+    buildToolsVersion '23.0.0'
-
     defaultConfig {
         minSdkVersion 14
-        targetSdkVersion 21
+        targetSdkVersion 23
     }
-
     buildTypes {
         release {
             minifyEnabled true
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-project.txt'
         }
     }
+    productFlavors {
+    }
 }
 
 dependencies {

src/java/JavaFileStorage/app/src/main/java/keepass2android/javafilestorage/GoogleDriveFileStorage.java

@@ -27,11 +27,14 @@ import com.google.api.services.drive.model.File;
 import com.google.api.services.drive.model.FileList;
 import com.google.api.services.drive.model.ParentReference;
 
+import android.Manifest;
 import android.accounts.AccountManager;
 import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.os.AsyncTask;
+import android.os.Build;
 import android.os.Bundle;
 import android.text.TextUtils;
 
@@ -43,7 +46,7 @@ public class GoogleDriveFileStorage extends JavaFileStorageBase {
 	static final int MAGIC_GDRIVE=2082334;
 	static final int REQUEST_ACCOUNT_PICKER = MAGIC_GDRIVE+1;
 	static final int REQUEST_AUTHORIZATION = MAGIC_GDRIVE+2;
-
+	private boolean mRequiresRuntimePermissions = false;
 
 
 	class FileSystemEntryData
@@ -253,7 +256,7 @@ public class GoogleDriveFileStorage extends JavaFileStorageBase {
 	
 	public GoogleDriveFileStorage()
 	{
-		logDebug("Creating GDrive FileStorage");
+		logDebug("Creating GDrive FileStorage.");
 	}
 
 	@Override
@@ -773,16 +776,23 @@ public class GoogleDriveFileStorage extends JavaFileStorageBase {
 	}
 
 
-
 	@Override
-	public void onResume(JavaFileStorage.FileStorageSetupActivity setupAct) {
+	public void onRequestPermissionsResult(FileStorageSetupActivity setupAct, int requestCode, String[] permissions, int[] grantResults)
-
+	{
+		logDebug("onRequestPermissionsResult");
+		if (grantResults[0] == PackageManager.PERMISSION_GRANTED)
+		{
+			logDebug("granted");
+			initFileStorage(setupAct);
+		}
+		else
+		{
+			logDebug("denied");
+			finishWithError(setupAct, new Exception("You must grant the requested permissions to continue."));
+		}
 	}
 
-	@Override
+	private void initFileStorage(FileStorageSetupActivity setupAct) {
-	public void onStart(final JavaFileStorage.FileStorageSetupActivity setupAct) {
-
-		logDebug("onStart");
 		Activity activity = (Activity)setupAct;
 
 		if (PROCESS_NAME_SELECTFILE.equals(setupAct.getProcessName()))
@@ -799,6 +809,22 @@ public class GoogleDriveFileStorage extends JavaFileStorageBase {
         }
 	}
 
+	@Override
+	public void onResume(JavaFileStorage.FileStorageSetupActivity setupAct) {
+
+	}
+
+	@Override
+	public void onStart(final JavaFileStorage.FileStorageSetupActivity setupAct) {
+		logDebug("onStart "+mRequiresRuntimePermissions);
+		if (!mRequiresRuntimePermissions)
+		{
+			initFileStorage(setupAct);
+		}
+
+
+	}
+
 	private GoogleAccountCredential createCredential(Context appContext) {
 		List<String> scopes = new ArrayList<String>();
 		scopes.add(DriveScopes.DRIVE);
@@ -816,6 +842,21 @@ public class GoogleDriveFileStorage extends JavaFileStorageBase {
 	public void onCreate(FileStorageSetupActivity activity,
 			Bundle savedInstanceState) {
 
+		logDebug("onCreate");
+		mRequiresRuntimePermissions = false;
+		if (Build.VERSION.SDK_INT >= 23)
+		{
+			Activity act = (Activity)activity;
+			int permissionRes = act.checkSelfPermission(Manifest.permission.GET_ACCOUNTS);
+			logDebug("permissionRes="+permissionRes);
+			if (permissionRes == PackageManager.PERMISSION_DENIED)
+			{
+				logDebug("requestPermissions");
+				mRequiresRuntimePermissions = true;
+				act.requestPermissions(new String[] {Manifest.permission.GET_ACCOUNTS}, 0);
+			}
+		}
+
 	}
 
 

src/java/JavaFileStorage/app/src/main/java/keepass2android/javafilestorage/JavaFileStorage.java

@@ -18,7 +18,7 @@ public interface JavaFileStorage {
 	public static final String EXTRA_PATH = "fileName"; //match KP2A PasswordActivity Ioc-Path Extra key
 	public static final String EXTRA_IS_FOR_SAVE = "IS_FOR_SAVE";
 	public static final String EXTRA_ERROR_MESSAGE = "EXTRA_ERROR_MESSAGE";
-	public static final String EXTRA_ALWAYS_RETURN_SUCCESS = "EXTRA_ALWAYS_RETURN_SUCCESS";;
+	public static final String EXTRA_ALWAYS_RETURN_SUCCESS = "EXTRA_ALWAYS_RETURN_SUCCESS";
 
 	
 public interface FileStorageSetupInitiatorActivity
@@ -155,5 +155,6 @@ public class FileEntry {
 	public void onResume(FileStorageSetupActivity activity);
 	public void onStart(FileStorageSetupActivity activity);
 	public void onActivityResult(FileStorageSetupActivity activity, int requestCode, int resultCode, Intent data);
+	public void onRequestPermissionsResult(FileStorageSetupActivity activity, int requestCode, String[] permissions, int[] grantResults);
 	
 }

src/java/JavaFileStorage/app/src/main/java/keepass2android/javafilestorage/JavaFileStorageBase.java

@@ -147,5 +147,10 @@ public abstract class JavaFileStorageBase implements JavaFileStorage{
 
 	}
 
+	public void onRequestPermissionsResult(FileStorageSetupActivity activity, int requestCode, String[] permissions, int[] grantResults)
+	{
+
+	}
+
 
 }

src/keepass2android/CreateDatabaseActivity.cs

@@ -287,13 +287,20 @@ namespace keepass2android
 
 		private void SetDefaultIoc()
 		{
-			var sdDir = SdDir;
+			File directory = GetExternalFilesDir(null);
-			string filename = sdDir + "keepass.kdbx";
+			if (directory == null)
+				directory = FilesDir;
+
+			string strDir = directory.CanonicalPath;
+			if (!strDir.EndsWith(File.Separator))
+				strDir += File.Separator;
+
+			string filename = strDir + "keepass.kdbx";
 			filename = ConvertFilenameToIocPath(filename);
 			int count = 2;
 			while (new File(filename).Exists())
 			{
-				filename = ConvertFilenameToIocPath(sdDir + "keepass" + count + ".kdbx");
+				filename = ConvertFilenameToIocPath(strDir + "keepass" + count + ".kdbx");
 				count++;
 			}
 			

src/keepass2android/PasswordActivity.cs

@@ -71,6 +71,7 @@ namespace keepass2android
 		LaunchMode = LaunchMode.SingleInstance,
 		WindowSoftInputMode = SoftInput.AdjustResize,
 		Theme = "@style/MyTheme_Blue")] /*caution: also contained in AndroidManifest.xml*/
+	[IntentFilter(new[] { "kp2a.action.PasswordActivity" }, Categories = new[] { Intent.CategoryDefault })]
 	public class PasswordActivity : LockingActivity, IFingerprintAuthCallback
 	{
 

src/keepass2android/Properties/AndroidManifest_debug.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android" android:versionCode="46" android:versionName="0.9.3-release-3" package="keepass2android.keepass2android_debug" android:installLocation="auto">
-	<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />
+	<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="23" />
 	<permission android:description="@string/permission_desc" android:icon="@drawable/ic_launcher" android:label="KP2A internal file browsing" android:name="keepass2android.keepass2android_debug.permission.KP2aInternalFileBrowsing" android:protectionLevel="signature" />
 	<application android:label="keepass2android" android:icon="@drawable/ic_launcher">
 		

src/keepass2android/Properties/AndroidManifest_net.xml

@@ -4,7 +4,7 @@
 			android:versionName="1.0.0 preview 2" 
 			package="keepass2android.keepass2android" 
 			android:installLocation="auto">
-	<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />
+	<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="23" />
 	<permission android:description="@string/permission_desc" android:icon="@drawable/ic_launcher_online" android:label="KP2A internal file browsing" android:name="keepass2android.keepass2android.permission.KP2aInternalFileBrowsing" android:protectionLevel="signature" />
 	<application android:label="keepass2android" android:icon="@drawable/ic_launcher_online">
 		<activity android:name="com.dropbox.client2.android.AuthActivity" android:launchMode="singleTask" android:configChanges="orientation|keyboard">

src/keepass2android/Properties/AndroidManifest_nonet.xml

@@ -4,7 +4,7 @@
 			android:versionName="0.9.8b" 
 			package="keepass2android.keepass2android_nonet"
 			android:installLocation="auto">
-	<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="21" />
+	<uses-sdk android:minSdkVersion="14" android:targetSdkVersion="23" />
 	<application android:label="keepass2android" android:icon="@drawable/ic_launcher_offline">
 		<provider android:name="group.pals.android.lib.ui.filechooser.providers.localfile.LocalFileProvider" android:authorities="keepass2android.keepass2android_nonet.android-filechooser.localfile" android:exported="false" />
 		<provider android:name="group.pals.android.lib.ui.filechooser.providers.history.HistoryProvider" android:authorities="keepass2android.keepass2android_nonet.android-filechooser.history" android:exported="false" />

src/keepass2android/Resources/values-iw/strings.xml

@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--Generated by crowdin.com-->
-<!--Generated by crowdin.net-->
-<resources/>

src/keepass2android/Resources/values/strings.xml

@@ -594,11 +594,13 @@
   </string>
 
   <string name="ChangeLog_1_0_0">
-    Version 1.0.0 - preview 1\n
+    Version 1.0.0 - preview 2\n
+    * Fingerprint Unlock (requires Android 6.0 or later)\n
     * Added "work offline" mode\n
     * Allow to copy entries\n
     * Auto-complete mode for field names\n
     * Allow to remove items from recent files list\n
+    * Request permissions at runtime in Android 6.0\n
     * more to come...\n
   </string>
 	

src/keepass2android/fileselect/FileStorageSetupActivity.cs

@@ -87,6 +87,17 @@ namespace keepass2android.fileselect
 			App.Kp2a.GetFileStorage(Ioc).OnActivityResult(this, requestCode, (int) resultCode, data);
 		}
 
+	    public override void OnRequestPermissionsResult(int requestCode, string[] permissions, Permission[] grantResults)
+	    {
+		    base.OnRequestPermissionsResult(requestCode, permissions, grantResults);
+		    var fileStorage = App.Kp2a.GetFileStorage(Ioc);
+		    if (fileStorage is IPermissionRequestingFileStorage)
+		    {
+				((IPermissionRequestingFileStorage)fileStorage).OnRequestPermissionsResult(this, requestCode, permissions, grantResults);    
+		    }
+		    
+	    }
+
 	    protected override void OnSaveInstanceState(Bundle outState)
 		{
 			base.OnSaveInstanceState(outState);

src/keepass2android/keepass2android.csproj

@@ -86,17 +86,17 @@
     <Reference Include="System.Xml" />
     <Reference Include="System.Core" />
     <Reference Include="Mono.Android" />
+    <Reference Include="Xamarin.Android.Support.v7.MediaRouter">
+      <HintPath>..\packages\Xamarin.Android.Support.v7.MediaRouter.21.0.3.0\lib\MonoAndroid403\Xamarin.Android.Support.v7.MediaRouter.dll</HintPath>
+    </Reference>
     <Reference Include="Xamarin.Android.Support.v4">
-      <HintPath>..\packages\Xamarin.Android.Support.v4.23.1.1.0\lib\MonoAndroid403\Xamarin.Android.Support.v4.dll</HintPath>
+      <HintPath>..\packages\Xamarin.Android.Support.v4.22.2.1.0\lib\MonoAndroid403\Xamarin.Android.Support.v4.dll</HintPath>
     </Reference>
     <Reference Include="Xamarin.Android.Support.v7.AppCompat">
-      <HintPath>..\packages\Xamarin.Android.Support.v7.AppCompat.23.1.1.0\lib\MonoAndroid403\Xamarin.Android.Support.v7.AppCompat.dll</HintPath>
+      <HintPath>..\packages\Xamarin.Android.Support.v7.AppCompat.22.2.1.0\lib\MonoAndroid403\Xamarin.Android.Support.v7.AppCompat.dll</HintPath>
-    </Reference>
-    <Reference Include="Xamarin.Android.Support.v7.RecyclerView">
-      <HintPath>..\packages\Xamarin.Android.Support.v7.RecyclerView.23.1.1.0\lib\MonoAndroid403\Xamarin.Android.Support.v7.RecyclerView.dll</HintPath>
     </Reference>
     <Reference Include="Xamarin.Android.Support.Design">
-      <HintPath>..\packages\Xamarin.Android.Support.Design.23.1.1.0\lib\MonoAndroid403\Xamarin.Android.Support.Design.dll</HintPath>
+      <HintPath>..\packages\Xamarin.Android.Support.Design.22.2.1.0\lib\MonoAndroid403\Xamarin.Android.Support.Design.dll</HintPath>
     </Reference>
     <Reference Include="Xamarin.GooglePlayServices.Base">
       <HintPath>..\packages\Xamarin.GooglePlayServices.Base.27.0.0.0\lib\MonoAndroid41\Xamarin.GooglePlayServices.Base.dll</HintPath>
@@ -671,7 +671,6 @@
     <AndroidResource Include="Resources\values-el\strings.xml" />
     <AndroidResource Include="Resources\values-fi\strings.xml" />
     <AndroidResource Include="Resources\values-in\strings.xml" />
-    <AndroidResource Include="Resources\values-iw\strings.xml" />
     <AndroidResource Include="Resources\values-ko\strings.xml" />
     <AndroidResource Include="Resources\values-no\strings.xml" />
     <AndroidResource Include="Resources\values-pt-rPT\strings.xml" />
@@ -729,7 +728,6 @@
     <Folder Include="Resources\drawable-hdpi\" />
     <Folder Include="Resources\drawable-ldpi\" />
     <Folder Include="Resources\drawable-xxhdpi\" />
-    <Folder Include="Resources\values-iw\" />
     <Folder Include="SupportLib\" />
   </ItemGroup>
   <ItemGroup>
@@ -847,6 +845,12 @@
       <SubType>Designer</SubType>
     </AndroidResource>
   </ItemGroup>
+  <ItemGroup>
+    <XamarinComponentReference Include="xamandroidsupportdesign">
+      <Version>22.2.0.0</Version>
+      <Visible>False</Visible>
+    </XamarinComponentReference>
+  </ItemGroup>
   <ItemGroup>
     <AndroidAsset Include="Assets\LICENSE_SourceCodePro.txt" />
   </ItemGroup>
@@ -1643,12 +1647,6 @@
   <ItemGroup>
     <AndroidResource Include="Resources\layout\image_list_preference_row.xml" />
   </ItemGroup>
-  <ItemGroup>
-    <XamarinComponentReference Include="xamandroidsupportdesign">
-      <Visible>False</Visible>
-      <Version>23.0.1.3</Version>
-    </XamarinComponentReference>
-  </ItemGroup>
   <ItemGroup>
     <AndroidResource Include="Resources\drawable\ic_fingerprint_error.xml" />
   </ItemGroup>

src/keepass2android/packages.config

@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Xamarin.Android.Support.Design" version="23.1.1.0" targetFramework="MonoAndroid50" />
+  <package id="Xamarin.Android.Support.Design" version="22.2.1.0" targetFramework="MonoAndroid50" />
-  <package id="Xamarin.Android.Support.v4" version="23.1.1.0" targetFramework="MonoAndroid50" />
+  <package id="Xamarin.Android.Support.v4" version="22.2.1.0" targetFramework="MonoAndroid50" />
-  <package id="Xamarin.Android.Support.v7.AppCompat" version="23.1.1.0" targetFramework="MonoAndroid50" />
+  <package id="Xamarin.Android.Support.v7.AppCompat" version="22.2.1.0" targetFramework="MonoAndroid50" />
-  <package id="Xamarin.Android.Support.v7.RecyclerView" version="23.1.1.0" targetFramework="MonoAndroid50" />
+  <package id="Xamarin.Android.Support.v7.MediaRouter" version="21.0.3.0" targetFramework="MonoAndroid50" />
   <package id="Xamarin.GooglePlayServices.Base" version="27.0.0.0" targetFramework="MonoAndroid50" />
   <package id="Xamarin.GooglePlayServices.Basement" version="27.0.0.0" targetFramework="MonoAndroid50" />
   <package id="Xamarin.GooglePlayServices.Drive" version="27.0.0.0" targetFramework="MonoAndroid50" />