diff --git a/AirKoality/app/src/main/AndroidManifest.xml b/AirKoality/app/src/main/AndroidManifest.xml
index fd63772..cc2e28a 100644
--- a/AirKoality/app/src/main/AndroidManifest.xml
+++ b/AirKoality/app/src/main/AndroidManifest.xml
@@ -7,6 +7,8 @@
     <uses-permission android:name="android.permission.FOREGROUND_SERVICE" />
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
 
+  
+        
 
 
     <application
@@ -27,6 +29,19 @@
 
         <meta-data android:name="com.google.android.geo.API_KEY" android:value="@string/google_maps_key"/>
 
+       <provider
+           android:authorities="@string/provider_authority"
+           android:name="android.support.v4.content.FileProvider"
+           android:exported="false"
+           android:grantUriPermissions="true"
+           >
+
+           <meta-data
+               android:name="android.support.FILE_PROVIDER_PATHS"
+               android:resource="@xml/provider_paths" />
+
+       </provider>
+        
 <service android:name=".service.LocationService"/>
 
         <activity android:name=".ui.activity.SplashActivity"
diff --git a/AirKoality/app/src/main/java/at/fhj/airkoality/ui/activity/MeasurementActivity.java b/AirKoality/app/src/main/java/at/fhj/airkoality/ui/activity/MeasurementActivity.java
index 07f673b..8534bf6 100644
--- a/AirKoality/app/src/main/java/at/fhj/airkoality/ui/activity/MeasurementActivity.java
+++ b/AirKoality/app/src/main/java/at/fhj/airkoality/ui/activity/MeasurementActivity.java
@@ -4,17 +4,24 @@ import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.graphics.Bitmap;
 import android.net.ConnectivityManager;
 import android.net.NetworkInfo;
+import android.net.Uri;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v7.app.AppCompatActivity;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
+import android.view.View;
 import android.widget.TextView;
 
 import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 
+import java.io.IOException;
 import java.util.ArrayList;
 
 import at.fhj.airkoality.R;
@@ -24,6 +31,7 @@ import at.fhj.airkoality.model.LatestMeasurements;
 import at.fhj.airkoality.model.Measurement;
 import at.fhj.airkoality.network.HttpsGetTask;
 import at.fhj.airkoality.network.RequestCallback;
+import at.fhj.airkoality.util.Util;
 
 public class MeasurementActivity extends AppCompatActivity implements RequestCallback {
 
@@ -39,6 +47,7 @@ public class MeasurementActivity extends AppCompatActivity implements RequestCal
     private TextView tvPM25value;
     private TextView tvSO2value;
     private TextView tvNO2value;
+    private View rootView;
 
     private NetworkStateReceiver networkStateReceiver;
 
@@ -56,7 +65,7 @@ public class MeasurementActivity extends AppCompatActivity implements RequestCal
         tvSO2value = findViewById(R.id.tvSO2value);
         tvNO2value = findViewById(R.id.tvNO2value);
 
-
+        rootView = findViewById(R.id.rootView);
 
         //TODO: get locationname from intent
         locationName = getIntent().getStringExtra("location_name");
@@ -205,4 +214,52 @@ public class MeasurementActivity extends AppCompatActivity implements RequestCal
     }
 
 
+
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+
+
+        MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.menu_measurement, menu);
+        return true;
+
+    }
+
+
+
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+
+        switch (item.getItemId()){
+            case R.id.action_share:
+                shareMeasurements();
+                return true;
+            default:
+                return false;
+        }
+
+
+    }
+
+    private void shareMeasurements() {
+        Bitmap bitmap = Util.getBitmapFromView(rootView);
+        try {
+           Uri uri =  Util.savePng(this, bitmap,"measurements.png");
+
+
+            Intent intent = new Intent(Intent.ACTION_SEND);
+            intent.putExtra(Intent.EXTRA_STREAM, uri);
+            intent.putExtra(Intent.EXTRA_TEXT, "Messdaten von " + locationName);
+            intent.putExtra(Intent.EXTRA_SUBJECT, "AirKoality Daten");
+            intent.setType("image/png");
+            intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+            startActivity(intent);
+
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+
 }
diff --git a/AirKoality/app/src/main/java/at/fhj/airkoality/util/Util.java b/AirKoality/app/src/main/java/at/fhj/airkoality/util/Util.java
new file mode 100644
index 0000000..94c0354
--- /dev/null
+++ b/AirKoality/app/src/main/java/at/fhj/airkoality/util/Util.java
@@ -0,0 +1,38 @@
+package at.fhj.airkoality.util;
+
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.net.Uri;
+import android.support.v4.content.FileProvider;
+import android.view.View;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+
+import at.fhj.airkoality.R;
+
+public class Util {
+    public static Bitmap getBitmapFromView(View view) {
+        Bitmap b = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
+        Canvas c = new Canvas(b);
+        view.draw(c);
+        return b;
+    }
+
+    public static Uri savePng(Context context, Bitmap image, String filename) throws IOException {
+        File imagesFolder = new File(context.getFilesDir(), "images");
+        Uri uri;
+        imagesFolder.mkdirs();
+        File file = new File(imagesFolder, filename);
+
+        FileOutputStream stream = new FileOutputStream(file);
+        image.compress(Bitmap.CompressFormat.PNG, 90, stream);
+        stream.flush();
+        stream.close();
+        uri = FileProvider.getUriForFile(context, context.getString(R.string.provider_authority), file);
+        return uri;
+    }
+}
+
diff --git a/AirKoality/app/src/main/res/drawable/ic_share.xml b/AirKoality/app/src/main/res/drawable/ic_share.xml
new file mode 100644
index 0000000..cccb8de
--- /dev/null
+++ b/AirKoality/app/src/main/res/drawable/ic_share.xml
@@ -0,0 +1,5 @@
+<vector android:height="24dp" android:tint="#FDF9FB"
+    android:viewportHeight="24.0" android:viewportWidth="24.0"
+    android:width="24dp" xmlns:android="http://schemas.android.com/apk/res/android">
+    <path android:fillColor="#FF000000" android:pathData="M18,16.08c-0.76,0 -1.44,0.3 -1.96,0.77L8.91,12.7c0.05,-0.23 0.09,-0.46 0.09,-0.7s-0.04,-0.47 -0.09,-0.7l7.05,-4.11c0.54,0.5 1.25,0.81 2.04,0.81 1.66,0 3,-1.34 3,-3s-1.34,-3 -3,-3 -3,1.34 -3,3c0,0.24 0.04,0.47 0.09,0.7L8.04,9.81C7.5,9.31 6.79,9 6,9c-1.66,0 -3,1.34 -3,3s1.34,3 3,3c0.79,0 1.5,-0.31 2.04,-0.81l7.12,4.16c-0.05,0.21 -0.08,0.43 -0.08,0.65 0,1.61 1.31,2.92 2.92,2.92 1.61,0 2.92,-1.31 2.92,-2.92s-1.31,-2.92 -2.92,-2.92z"/>
+</vector>
diff --git a/AirKoality/app/src/main/res/layout/activity_measurement.xml b/AirKoality/app/src/main/res/layout/activity_measurement.xml
index 6c11cbb..70e4a7b 100644
--- a/AirKoality/app/src/main/res/layout/activity_measurement.xml
+++ b/AirKoality/app/src/main/res/layout/activity_measurement.xml
@@ -3,6 +3,7 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:id="@+id/rootView"
     android:gravity="center"
     android:orientation="vertical">
 
diff --git a/AirKoality/app/src/main/res/menu/menu_measurement.xml b/AirKoality/app/src/main/res/menu/menu_measurement.xml
new file mode 100644
index 0000000..d685828
--- /dev/null
+++ b/AirKoality/app/src/main/res/menu/menu_measurement.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <item android:id="@+id/action_share" app:showAsAction="always" android:title="Share" android:icon="@drawable/ic_share"/>
+
+
+</menu>
\ No newline at end of file
diff --git a/AirKoality/app/src/main/res/values/strings.xml b/AirKoality/app/src/main/res/values/strings.xml
index 13b6926..614b486 100644
--- a/AirKoality/app/src/main/res/values/strings.xml
+++ b/AirKoality/app/src/main/res/values/strings.xml
@@ -8,4 +8,5 @@
     <string name="country_label">Country:</string>
     <string name="latest_measurements">Latest measurements:</string>
     <string name="google_maps_key">AIzaSyBQhcmDlyP01yNwTd4RTlatQIAJH3wJHw0</string>
+    <string name="provider_authority">at.fhj.airkoality.provider</string>
 </resources>
diff --git a/AirKoality/app/src/main/res/xml/provider_paths.xml b/AirKoality/app/src/main/res/xml/provider_paths.xml
new file mode 100644
index 0000000..7e2ea5b
--- /dev/null
+++ b/AirKoality/app/src/main/res/xml/provider_paths.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <paths>
+        <files-path
+            name="images"
+            path="images/" />
+    </paths>
+</resources>
\ No newline at end of file
diff --git a/README.md b/README.md
index bd942fc..b68acfe 100644
--- a/README.md
+++ b/README.md
@@ -108,3 +108,17 @@ ActivityMain
 
 - Content Provider kennengelernt
   - wird verwendet um Daten für andere Apps bereitzustellen (z.B. Kontakte)
+  - besteht aus URI - Content Resolver - Content Provider - Persistierung
+  - Messdaten aus AirKoality in andere App übertragen (als PNG) [App die den Intent entgegennimmt muss den Filtype unterstützen]
+
+- Wie kann eine App published werden?
+    - Apk-File direkt (unsicher und unschön)
+    - Market Places
+      - Google Play
+      - Amazon
+    - Um im Play Store zu publishen muss man einen Developer Account anlegen (einmalige Zahlung von 25$)
+    - max. 100MB
+    - Target API ab Version 26
+  - App signing
+    - App wird mit einem Zertifikat signiert (Release oder Debug)
+    - alle folgenden Updates der App müssen mit dem gleichen Key signiert werden
diff --git a/README.pdf b/README.pdf
index 097910f..cf0eb5f 100644
Binary files a/README.pdf and b/README.pdf differ