diff --git a/.idea/caches/build_file_checksums.ser b/.idea/caches/build_file_checksums.ser
index 4b8707f..41de258 100644
Binary files a/.idea/caches/build_file_checksums.ser and b/.idea/caches/build_file_checksums.ser differ
diff --git a/filedialogtool/build.gradle b/filedialogtool/build.gradle
index 3e7ed2f..3e00f73 100644
--- a/filedialogtool/build.gradle
+++ b/filedialogtool/build.gradle
@@ -5,7 +5,7 @@ android {
 
 
     defaultConfig {
-        minSdkVersion 22
+        minSdkVersion 23
         targetSdkVersion 28
         versionCode 1
         versionName "1.0"
diff --git a/filedialogtool/build/intermediates/aapt_friendly_merged_manifests/debug/aapt/AndroidManifest.xml b/filedialogtool/build/intermediates/aapt_friendly_merged_manifests/debug/aapt/AndroidManifest.xml
index 569b090..58ecb3d 100644
--- a/filedialogtool/build/intermediates/aapt_friendly_merged_manifests/debug/aapt/AndroidManifest.xml
+++ b/filedialogtool/build/intermediates/aapt_friendly_merged_manifests/debug/aapt/AndroidManifest.xml
@@ -5,7 +5,7 @@
     android:versionName="1.0" >
 
     <uses-sdk
-        android:minSdkVersion="22"
+        android:minSdkVersion="23"
         android:targetSdkVersion="28" />
 
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
diff --git a/filedialogtool/build/intermediates/incremental/packageDebugResources/compile-file-map.properties b/filedialogtool/build/intermediates/incremental/packageDebugResources/compile-file-map.properties
index ce0b9b8..99acfcb 100644
--- a/filedialogtool/build/intermediates/incremental/packageDebugResources/compile-file-map.properties
+++ b/filedialogtool/build/intermediates/incremental/packageDebugResources/compile-file-map.properties
@@ -1,4 +1,4 @@
-#Sun Oct 03 14:05:04 CEST 2021
+#Sun Oct 03 14:34:21 CEST 2021
 /media/berthold/Bertholds\ Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/document.png=/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/build/intermediates/packaged_res/debug/drawable/document.png
 /media/berthold/Bertholds\ Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/layout/activity_file_chooser.xml=/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/build/intermediates/packaged_res/debug/layout/activity_file_chooser.xml
 /media/berthold/Bertholds\ Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/camera.png=/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/build/intermediates/packaged_res/debug/drawable/camera.png
diff --git a/filedialogtool/build/intermediates/incremental/packageDebugResources/merged.dir/values-de/values-de.xml b/filedialogtool/build/intermediates/incremental/packageDebugResources/merged.dir/values-de/values-de.xml
index bf20dc5..3daeeb6 100644
--- a/filedialogtool/build/intermediates/incremental/packageDebugResources/merged.dir/values-de/values-de.xml
+++ b/filedialogtool/build/intermediates/incremental/packageDebugResources/merged.dir/values-de/values-de.xml
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <string name="activity_name">Dateiauswahl</string>
+    <string name="activity_name">Dateiauswahl 1.0</string>
 </resources>
\ No newline at end of file
diff --git a/filedialogtool/build/intermediates/incremental/packageDebugResources/merged.dir/values-en/values-en.xml b/filedialogtool/build/intermediates/incremental/packageDebugResources/merged.dir/values-en/values-en.xml
deleted file mode 100644
index 7b36fcb..0000000
--- a/filedialogtool/build/intermediates/incremental/packageDebugResources/merged.dir/values-en/values-en.xml
+++ /dev/null
@@ -1,4 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <string name="activity_name">Select file</string>
-</resources>
\ No newline at end of file
diff --git a/filedialogtool/build/intermediates/incremental/packageDebugResources/merged.dir/values/values.xml b/filedialogtool/build/intermediates/incremental/packageDebugResources/merged.dir/values/values.xml
deleted file mode 100644
index 5e10db1..0000000
--- a/filedialogtool/build/intermediates/incremental/packageDebugResources/merged.dir/values/values.xml
+++ /dev/null
@@ -1,11 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="colorAccent">#D81B60</color>
-    <color name="colorLightGrey">#888888</color>
-    <color name="colorPrimary">#008577</color>
-    <color name="colorPrimaryDark">#00574B</color>
-    <dimen name="activity_horizontal_margin">16dp</dimen>
-    <dimen name="activity_vertical_margin">16dp</dimen>
-    <dimen name="fab_margin">16dp</dimen>
-    <string name="activity_name">Dateiauswahl</string>
-</resources>
\ No newline at end of file
diff --git a/filedialogtool/build/intermediates/incremental/packageDebugResources/merger.xml b/filedialogtool/build/intermediates/incremental/packageDebugResources/merger.xml
index 8460a38..05a2110 100644
--- a/filedialogtool/build/intermediates/incremental/packageDebugResources/merger.xml
+++ b/filedialogtool/build/intermediates/incremental/packageDebugResources/merger.xml
@@ -1,2 +1,2 @@
 <?xml version="1.0" encoding="utf-8"?>
-<merger version="3"><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="main$Generated" generated="true" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res"/><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/build/generated/res/rs/debug"/><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/build/generated/res/resValues/debug"/></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="main" generated-set="main$Generated" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res"><file name="camera" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/camera.png" qualifiers="" type="drawable"/><file name="document" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/document.png" qualifiers="" type="drawable"/><file name="ic_delete_forever_black_24dp" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/ic_delete_forever_black_24dp.png" qualifiers="" type="drawable"/><file name="ic_search_black_24dp" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/ic_search_black_24dp.png" qualifiers="" type="drawable"/><file name="nopicture" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/nopicture.png" qualifiers="" type="drawable"/><file name="openfolder" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/openfolder.png" qualifiers="" type="drawable"/><file name="activity_file_chooser" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/layout/activity_file_chooser.xml" qualifiers="" type="layout"/><file name="file_list_active_entry" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/layout/file_list_active_entry.xml" qualifiers="" type="layout"/><file name="fragment_dialog_show_file_info" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/layout/fragment_dialog_show_file_info.xml" qualifiers="" type="layout"/><file name="menu_file_chooser" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/menu/menu_file_chooser.xml" qualifiers="" type="menu"/><file path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/values/colors.xml" qualifiers=""><color name="colorLightGrey">#888888</color><color name="colorPrimary">#008577</color><color name="colorPrimaryDark">#00574B</color><color name="colorAccent">#D81B60</color></file><file path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/values/dimens.xml" qualifiers=""><dimen name="activity_horizontal_margin">16dp</dimen><dimen name="activity_vertical_margin">16dp</dimen><dimen name="fab_margin">16dp</dimen></file><file path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/values/strings.xml" qualifiers=""><string name="activity_name">Dateiauswahl</string></file><file path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/values-de/strings.xml" qualifiers="de"><string name="activity_name">Dateiauswahl</string></file><file path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/values-en/strings.xml" qualifiers="en"><string name="activity_name">Select file</string></file></source><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/build/generated/res/rs/debug"/><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/build/generated/res/resValues/debug"/></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="debug$Generated" generated="true" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/debug/res"/></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="debug" generated-set="debug$Generated" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/debug/res"/></dataSet><mergedItems/></merger>
\ No newline at end of file
+<merger version="3"><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="main$Generated" generated="true" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res"/><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/build/generated/res/rs/debug"/><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/build/generated/res/resValues/debug"/></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="main" generated-set="main$Generated" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res"><file name="camera" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/camera.png" qualifiers="" type="drawable"/><file name="document" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/document.png" qualifiers="" type="drawable"/><file name="ic_delete_forever_black_24dp" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/ic_delete_forever_black_24dp.png" qualifiers="" type="drawable"/><file name="ic_search_black_24dp" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/ic_search_black_24dp.png" qualifiers="" type="drawable"/><file name="nopicture" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/nopicture.png" qualifiers="" type="drawable"/><file name="openfolder" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/drawable/openfolder.png" qualifiers="" type="drawable"/><file name="activity_file_chooser" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/layout/activity_file_chooser.xml" qualifiers="" type="layout"/><file name="file_list_active_entry" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/layout/file_list_active_entry.xml" qualifiers="" type="layout"/><file name="fragment_dialog_show_file_info" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/layout/fragment_dialog_show_file_info.xml" qualifiers="" type="layout"/><file name="menu_file_chooser" path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/menu/menu_file_chooser.xml" qualifiers="" type="menu"/><file path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/values/colors.xml" qualifiers=""><color name="colorLightGrey">#888888</color><color name="colorPrimary">#008577</color><color name="colorPrimaryDark">#00574B</color><color name="colorAccent">#D81B60</color></file><file path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/values/dimens.xml" qualifiers=""><dimen name="activity_horizontal_margin">16dp</dimen><dimen name="activity_vertical_margin">16dp</dimen><dimen name="fab_margin">16dp</dimen></file><file path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/values/strings.xml" qualifiers=""><string name="activity_name">Dateiauswahl</string></file><file path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/values-de/strings.xml" qualifiers="de"><string name="activity_name">Dateiauswahl 1.0</string></file><file path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/res/values-en/strings.xml" qualifiers="en"><string name="activity_name">Select file</string></file></source><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/build/generated/res/rs/debug"/><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/build/generated/res/resValues/debug"/></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="debug$Generated" generated="true" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/debug/res"/></dataSet><dataSet aapt-namespace="http://schemas.android.com/apk/res-auto" config="debug" generated-set="debug$Generated" ignore_pattern="!.svn:!.git:!.ds_store:!*.scc:.*:&lt;dir>_*:!CVS:!thumbs.db:!picasa.ini:!*~"><source path="/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/debug/res"/></dataSet><mergedItems/></merger>
\ No newline at end of file
diff --git a/filedialogtool/build/intermediates/library_manifest/debug/AndroidManifest.xml b/filedialogtool/build/intermediates/library_manifest/debug/AndroidManifest.xml
index 569b090..58ecb3d 100644
--- a/filedialogtool/build/intermediates/library_manifest/debug/AndroidManifest.xml
+++ b/filedialogtool/build/intermediates/library_manifest/debug/AndroidManifest.xml
@@ -5,7 +5,7 @@
     android:versionName="1.0" >
 
     <uses-sdk
-        android:minSdkVersion="22"
+        android:minSdkVersion="23"
         android:targetSdkVersion="28" />
 
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
diff --git a/filedialogtool/build/intermediates/manifest_merge_blame_file/debug/manifest-merger-blame-debug-report.txt b/filedialogtool/build/intermediates/manifest_merge_blame_file/debug/manifest-merger-blame-debug-report.txt
index e60cad1..d636d88 100644
--- a/filedialogtool/build/intermediates/manifest_merge_blame_file/debug/manifest-merger-blame-debug-report.txt
+++ b/filedialogtool/build/intermediates/manifest_merge_blame_file/debug/manifest-merger-blame-debug-report.txt
@@ -5,7 +5,7 @@
 5    android:versionName="1.0" >
 6
 7    <uses-sdk
-8        android:minSdkVersion="22"
+8        android:minSdkVersion="23"
 8-->/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/AndroidManifest.xml
 9        android:targetSdkVersion="28" />
 9-->/media/berthold/Bertholds Zeug/NFSShare/myCode/AndroidStudioProjects/MyApps/FileDialogTool/filedialogtool/src/main/AndroidManifest.xml
diff --git a/filedialogtool/build/intermediates/packaged_res/debug/values-de/values-de.xml b/filedialogtool/build/intermediates/packaged_res/debug/values-de/values-de.xml
index bf20dc5..3daeeb6 100644
--- a/filedialogtool/build/intermediates/packaged_res/debug/values-de/values-de.xml
+++ b/filedialogtool/build/intermediates/packaged_res/debug/values-de/values-de.xml
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <string name="activity_name">Dateiauswahl</string>
+    <string name="activity_name">Dateiauswahl 1.0</string>
 </resources>
\ No newline at end of file
diff --git a/filedialogtool/src/main/res/values-de/strings.xml b/filedialogtool/src/main/res/values-de/strings.xml
index 01d4417..6f459f5 100644
--- a/filedialogtool/src/main/res/values-de/strings.xml
+++ b/filedialogtool/src/main/res/values-de/strings.xml
@@ -1,6 +1,6 @@
 <resources>
 
     <!-- File Dialog Activity -->
-    <string name="activity_name">Dateiauswahl</string>
+    <string name="activity_name">Dateiauswahl 1.0</string>
 
 </resources>