add prompt

# Conflicts:
#	app/src/main/java/de/joel/zoomhelper/MainActivity.java

.idea/compiler.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="CompilerConfiguration">
-    <bytecodeTargetLevel target="1.8" />
+    <bytecodeTargetLevel target="11" />
   </component>
 </project>

.idea/dictionaries/Joel.xml

@@ -0,0 +1,8 @@
+<component name="ProjectDictionaryState">
+  <dictionary name="Joel">
+    <words>
+      <w>videomeetings</w>
+      <w>zoomhelper</w>
+    </words>
+  </dictionary>
+</component>

.idea/gradle.xml

@@ -4,10 +4,11 @@
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
+        <option name="delegatedBuild" value="true" />
         <option name="testRunner" value="PLATFORM" />
-        <option name="disableWrapperSourceDistributionNotification" value="true" />
         <option name="distributionType" value="DEFAULT_WRAPPED" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleJvm" value="14" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />
@@ -15,7 +16,6 @@
           </set>
         </option>
         <option name="resolveModulePerSourceSet" value="false" />
-        <option name="useQualifiedModuleNames" value="true" />
       </GradleProjectSettings>
     </option>
   </component>

.idea/misc.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="false" project-jdk-name="Android API 30 Platform" project-jdk-type="Android SDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

.idea/runConfigurations.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RunConfigurationProducerService">
+    <option name="ignoredProducers">
+      <set>
+        <option value="com.android.tools.idea.compose.preview.runconfiguration.ComposePreviewRunConfigurationProducer" />
+      </set>
+    </option>
+  </component>
+</project>

app/build.gradle

@@ -10,8 +10,8 @@ android {
         applicationId "de.joel.zoomhelper"
         minSdkVersion 21
         targetSdkVersion 30
-        versionCode 14
-        versionName '0.5.1 beta'
+        versionCode 15
+        versionName '0.5.1'
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
@@ -36,7 +36,7 @@ repositories {
 
 dependencies {
 
-    implementation 'androidx.appcompat:appcompat:1.2.0'
+    implementation 'androidx.appcompat:appcompat:1.3.0'
     implementation 'com.google.android.material:material:1.3.0'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
     implementation 'androidx.lifecycle:lifecycle-process:2.3.1'

app/src/main/AndroidManifest.xml

@@ -11,7 +11,7 @@
 
 
     <application
-        android:allowBackup="true"
+        android:allowBackup="false"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:roundIcon="@mipmap/ic_launcher_round"

app/src/main/java/de/joel/zoomhelper/Attendee.java

@@ -4,8 +4,24 @@ import java.io.Serializable;
 
 public class Attendee implements Serializable {
     private static final long serialVersionUID = 6196688086302483907L;
-    public String name;
-    public String num;
+    private String name;
+    private String num;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getNum() {
+        return num;
+    }
+
+    public void setNum(String num) {
+        this.num = num;
+    }
 
     public Attendee(String name, String num) {
         this.name = name;

app/src/main/java/de/joel/zoomhelper/BackupController.java

@@ -0,0 +1,143 @@
+package de.joel.zoomhelper;
+
+import android.annotation.SuppressLint;
+import android.app.Activity;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Environment;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.widget.EditText;
+
+import androidx.annotation.RequiresApi;
+import androidx.appcompat.app.AlertDialog;
+
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.security.spec.InvalidKeySpecException;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.NoSuchPaddingException;
+
+public class BackupController {
+
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    public void backup(Activity activity) {
+        Encrypter encrypter = new Encrypter();
+        SharedPreferences mPrefs = activity.getPreferences(Context.MODE_PRIVATE);
+        String value = mPrefs.getString("Meetings", "");
+        final File tempDestination = new File(activity.getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath(), "backup.tmp");
+        final File destination = new File(activity.getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath(), "backup.zoomhelper");
+        String password;
+
+        try {
+            writeStringToFile(value, tempDestination.getAbsolutePath());
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        // get prompts.xml view
+        LayoutInflater li = LayoutInflater.from(activity);
+        View promptsView = li.inflate(R.layout.prompts, null);
+
+        AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(activity);
+
+        // set prompts.xml to alertdialog builder
+        alertDialogBuilder.setView(promptsView);
+
+        final EditText userInput = (EditText) promptsView
+                .findViewById(R.id.editTextDialogUserInput);
+
+        // set dialog message
+        alertDialogBuilder
+                .setCancelable(false)
+                .setPositiveButton("OK",
+                        (dialog, id) -> {
+                            try {
+                                encrypter.encrypt(tempDestination.getAbsolutePath(), userInput.getText().toString());
+                            } catch (BadPaddingException | IllegalBlockSizeException | IOException | NoSuchAlgorithmException | InvalidKeySpecException | InvalidAlgorithmParameterException | InvalidKeyException | NoSuchPaddingException e) {
+                                e.printStackTrace();
+                            }
+                            //noinspection ResultOfMethodCallIgnored
+                            tempDestination.delete();
+                            shareFile(destination, activity);
+
+                        })
+                .setNegativeButton("Cancel",
+                        (dialog, id) -> dialog.cancel());
+
+        // create alert dialog
+        AlertDialog alertDialog = alertDialogBuilder.create();
+
+        // show it
+        alertDialog.show();
+    }
+    //TODO:Methode erneut aufrufen dann mit Passwort, mit vorheriger Quelle
+
+    public void restore(Activity activity) {
+       new FileChooser(activity).openFile();
+    }
+
+
+    @SuppressLint("ApplySharedPref")
+    public void restore(Activity activity, InputStream inp) {
+        Encrypter encrypter = new Encrypter();
+        SharedPreferences mPrefs = activity.getPreferences(Context.MODE_PRIVATE);
+
+        String decrypted = null;
+
+        //TODO: Passwort einlesen aus Eingabefeld
+        try {
+            decrypted = encrypter.decrypt(inp, "test");
+        } catch (IOException | InvalidAlgorithmParameterException | InvalidKeyException | NoSuchPaddingException | NoSuchAlgorithmException | InvalidKeySpecException | IllegalBlockSizeException | BadPaddingException e) {
+            e.printStackTrace();
+        }
+
+        //TODO: Hinweis, dass Daten mit den Daten aus dem Backup überschrieben werden...
+
+        SharedPreferences.Editor prefsEditor = mPrefs.edit();
+        prefsEditor.putString("Meetings",decrypted);
+        prefsEditor.commit();
+
+        prefsEditor.putString("lastMeeting", "0");
+
+        //TODO: Fehlermeldung bei falschem Passwort
+    }
+
+
+
+    public void writeStringToFile(String str, String fileName)
+            throws IOException {
+        FileOutputStream outputStream = new FileOutputStream(fileName);
+        byte[] strToBytes = str.getBytes();
+        outputStream.write(strToBytes);
+
+        outputStream.close();
+    }
+
+
+    public void shareFile(File file, Activity activity){
+        Intent intentShareFile = new Intent(Intent.ACTION_SEND);
+
+        if(file.exists()) {
+            intentShareFile.setType("application/octet-stream");
+            intentShareFile.putExtra(Intent.EXTRA_STREAM, Uri.parse(file.getAbsolutePath()));
+
+            intentShareFile.putExtra(Intent.EXTRA_SUBJECT,
+                    "Sharing File...");
+            intentShareFile.putExtra(Intent.EXTRA_TEXT, "Sharing File...");
+
+            activity.startActivity(Intent.createChooser(intentShareFile, "Share File"));
+        }
+    }
+}

app/src/main/java/de/joel/zoomhelper/Encrypter.java

@@ -0,0 +1,154 @@
+package de.joel.zoomhelper;
+
+import android.os.Build;
+import android.os.Environment;
+
+import androidx.annotation.RequiresApi;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.security.spec.InvalidKeySpecException;
+import java.security.SecureRandom;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.SecretKeyFactory;
+import javax.crypto.SecretKey;
+import javax.crypto.spec.SecretKeySpec;
+import java.security.spec.KeySpec;
+import javax.crypto.spec.PBEKeySpec;
+import javax.crypto.spec.IvParameterSpec;
+
+public class Encrypter {
+
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    public void encrypt(String inputFile, String password) throws BadPaddingException, IllegalBlockSizeException, IOException, NoSuchAlgorithmException, InvalidKeySpecException, InvalidAlgorithmParameterException, InvalidKeyException, NoSuchPaddingException {
+        SecureRandom srandom = null;
+        try {
+            srandom = SecureRandom.getInstanceStrong();
+        } catch (NoSuchAlgorithmException e) {
+            e.printStackTrace();
+        }
+        byte[] salt = new byte[8];
+        assert srandom != null;
+        srandom.nextBytes(salt);
+        SecretKeyFactory factory =
+                SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256");
+
+        KeySpec spec = new PBEKeySpec(password.toCharArray(), salt, 10000, 128);
+        SecretKey tmp = factory.generateSecret(spec);
+        SecretKeySpec skey = new SecretKeySpec(tmp.getEncoded(), "AES");
+
+        byte[] iv = new byte[128 / 8];
+        srandom.nextBytes(iv);
+        IvParameterSpec ivspec = new IvParameterSpec(iv);
+
+        FileOutputStream out = null;
+        out = new FileOutputStream(inputFile + ".enc");
+        out.write(salt);
+        out.write(iv);
+
+        Cipher ci = null;
+
+        ci = Cipher.getInstance("AES/CBC/PKCS5Padding");
+
+        ci.init(Cipher.ENCRYPT_MODE, skey, ivspec);
+
+        try (FileInputStream in = new FileInputStream(inputFile)) {
+            processFile(ci, in, out);
+        }
+
+    }
+
+    static private void processFile(Cipher ci, InputStream in, OutputStream out)
+            throws javax.crypto.IllegalBlockSizeException,
+            javax.crypto.BadPaddingException,
+            java.io.IOException {
+        byte[] ibuf = new byte[1024];
+        int len;
+        while ((len = in.read(ibuf)) != -1) {
+            byte[] obuf = ci.update(ibuf, 0, len);
+            if (obuf != null) out.write(obuf);
+        }
+        byte[] obuf = ci.doFinal();
+        if (obuf != null) out.write(obuf);
+    }
+
+    @SuppressWarnings("ResultOfMethodCallIgnored")
+    public String decrypt(String inputFile, String password) throws IOException, InvalidAlgorithmParameterException, InvalidKeyException, NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeySpecException, IllegalBlockSizeException, BadPaddingException {
+        FileInputStream in = new FileInputStream(inputFile);
+        byte[] salt = new byte[8], iv = new byte[128 / 8];
+        in.read(salt);
+        in.read(iv);
+
+        SecretKeyFactory factory =
+                SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256");
+
+        KeySpec spec = new PBEKeySpec(password.toCharArray(), salt, 10000, 128);
+        SecretKey tmp = factory.generateSecret(spec);
+        SecretKeySpec skey = new SecretKeySpec(tmp.getEncoded(), "AES");
+
+        Cipher ci = Cipher.getInstance("AES/CBC/PKCS5Padding");
+        ci.init(Cipher.DECRYPT_MODE, skey, new IvParameterSpec(iv));
+
+
+        OutputStream out = new OutputStream() {
+            private final StringBuilder string = new StringBuilder();
+
+            @Override
+            public void write(int b) throws IOException {
+                this.string.append((char) b );
+            }
+
+            //Netbeans IDE automatically overrides this toString()
+            public String toString() {
+                return this.string.toString();
+            }
+        };
+        processFile(ci, in, out);
+        return out.toString();
+    }
+
+    public String decrypt(InputStream in, String password) throws IOException, InvalidAlgorithmParameterException, InvalidKeyException, NoSuchPaddingException, NoSuchAlgorithmException, InvalidKeySpecException, IllegalBlockSizeException, BadPaddingException {
+        byte[] salt = new byte[8], iv = new byte[128 / 8];
+        in.read(salt);
+        in.read(iv);
+
+        SecretKeyFactory factory =
+                SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256");
+
+        KeySpec spec = new PBEKeySpec(password.toCharArray(), salt, 10000, 128);
+        SecretKey tmp = factory.generateSecret(spec);
+        SecretKeySpec skey = new SecretKeySpec(tmp.getEncoded(), "AES");
+
+        Cipher ci = Cipher.getInstance("AES/CBC/PKCS5Padding");
+        ci.init(Cipher.DECRYPT_MODE, skey, new IvParameterSpec(iv));
+
+
+        OutputStream out = new OutputStream() {
+            private final StringBuilder string = new StringBuilder();
+
+            @Override
+            public void write(int b) throws IOException {
+                this.string.append((char) b );
+            }
+
+            //Netbeans IDE automatically overrides this toString()
+            public String toString() {
+                return this.string.toString();
+            }
+        };
+        processFile(ci, in, out);
+        return out.toString();
+    }
+}

app/src/main/java/de/joel/zoomhelper/FileChooser.java

@@ -0,0 +1,22 @@
+package de.joel.zoomhelper;
+
+import android.app.Activity;
+import android.content.Intent;
+
+import java.io.File;
+
+public class FileChooser {
+    // Request code for selecting a PDF document.
+    private final Activity act;
+
+    public FileChooser (Activity act) {
+        this.act = act;
+    }
+
+    public void openFile() {
+        Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
+        intent.addCategory(Intent.CATEGORY_OPENABLE);
+        intent.setType("application/octet-stream");
+        act.startActivityForResult(intent, 2);
+    }
+}

app/src/main/java/de/joel/zoomhelper/MainActivity.java

@@ -5,7 +5,11 @@ import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Intent;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
 import android.view.View;
 import android.widget.AutoCompleteTextView;
 import android.widget.EditText;
@@ -14,6 +18,7 @@ import android.widget.LinearLayout;
 import android.widget.ScrollView;
 import android.widget.Toast;
 
+import androidx.annotation.RequiresApi;
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.core.content.pm.ShortcutInfoCompat;
@@ -25,29 +30,29 @@ import com.github.javiersantos.appupdater.enums.UpdateFrom;
 import com.google.android.material.snackbar.Snackbar;
 import com.google.android.material.textfield.TextInputLayout;
 
+import java.io.File;
+import java.io.FileNotFoundException;
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Objects;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
 
 import static android.content.ClipDescription.MIMETYPE_TEXT_PLAIN;
 
 public class MainActivity extends AppCompatActivity {
 
     private final MeetingsController meetingsController = new MeetingsController(this);
+    private final MeetingImportController meetingImportController = new MeetingImportController(meetingsController, this);
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
         //get intent parameters
-        Intent myIntent = getIntent();
-        String action = myIntent.getAction();
-        String type = myIntent.getType();
-        String meetingName = myIntent.getStringExtra("meetingName");
+        final Intent myIntent = getIntent();
+        final String action = myIntent.getAction();
+        final String type = myIntent.getType();
+        final String meetingName = myIntent.getStringExtra("meetingName");
         boolean joinImmediately = myIntent.getBooleanExtra("joinImmediately", false);
-        //boolean testing = myIntent.getBooleanExtra("testing", false);
+        //final boolean testing = myIntent.getBooleanExtra("testing", false);
 
         setContentView(R.layout.activity_main);
 
@@ -63,23 +68,23 @@ public class MainActivity extends AppCompatActivity {
 
         //add event listeners to views
         saveIcon.setOnClickListener(v -> saveMeetingFromUI());
-        trashIcon.setOnClickListener(v -> meetingsController.removeMeeting(meetingsController.searchMeetingInList(meetingsController.getMeetings(), createCurrMeetingFromUI().meetingName)));
+        trashIcon.setOnClickListener(v -> meetingsController.removeMeeting(meetingsController.searchMeetingInList(meetingsController.getMeetings(), createCurrMeetingFromUI().getMeetingName())));
         AttIcon.setOnClickListener(v -> btnJoin_onClick(null));
         AddIcon.setOnClickListener(v -> {
             fillBlank();
             meetingID.requestFocus();
         });
-        ShareIcon.setOnClickListener(v -> shareMeeting(createCurrMeetingFromUI()));
+        ShareIcon.setOnClickListener(v -> startActivity(createCurrMeetingFromUI().share()));
         ShortcutIcon.setOnClickListener(v -> showCreateShortcutUI());
 
         //show alert if meeting from shortcut not found
-        int meetingIndex = meetingsController.searchMeetingInList(meetingsController.getMeetings(), meetingName);
+        final int meetingIndex = meetingsController.searchMeetingInList(meetingsController.getMeetings(), meetingName);
         if (meetingIndex == -1) {
             if (meetingName != null) {
-                AlertDialog.Builder dialog = new AlertDialog.Builder(this);
+                final AlertDialog.Builder dialog = new AlertDialog.Builder(this);
                 dialog.setMessage(R.string.shortcutLaunchFailedText);
                 dialog.setTitle(R.string.hint);
-                AlertDialog alertDialog = dialog.create();
+                final AlertDialog alertDialog = dialog.create();
                 alertDialog.show();
             }
             joinImmediately = false;
@@ -88,11 +93,11 @@ public class MainActivity extends AppCompatActivity {
         //adjust ui for meeting from shortcut
         if (meetingIndex <= meetingsController.getMeetings().size() && meetingIndex != -1) {
             meetingsController.setLastMeeting(meetingIndex);
-            AutoCompleteTextView textMeetingName = findViewById(R.id.TextMeetingName);
+            final AutoCompleteTextView textMeetingName = findViewById(R.id.TextMeetingName);
             textMeetingName.setEnabled(false);
             textMeetingName.setAdapter(null);
             trashIcon.setVisibility(View.GONE);
-            TextInputLayout layoutMeetingName = findViewById(R.id.layoutMeetingName);
+            final TextInputLayout layoutMeetingName = findViewById(R.id.layoutMeetingName);
             layoutMeetingName.setEndIconMode(TextInputLayout.END_ICON_NONE);
         }
 
@@ -104,10 +109,10 @@ public class MainActivity extends AppCompatActivity {
                 fillMeeting(meetingsController.getLastMeeting());
                 scrollview.post(() -> scrollview.scrollTo(0, scrollview.getChildAt(0).getHeight()));
             } catch (IndexOutOfBoundsException e) {
-                AlertDialog.Builder dialog = new AlertDialog.Builder(this);
+                final AlertDialog.Builder dialog = new AlertDialog.Builder(this);
                 dialog.setMessage(R.string.resetDataText);
                 dialog.setTitle(R.string.hint);
-                AlertDialog alertDialog = dialog.create();
+                final AlertDialog alertDialog = dialog.create();
                 alertDialog.show();
                 meetingsController.setLastMeeting(-1);
                 meetingsController.saveMeetingList(new ArrayList<>());
@@ -117,18 +122,17 @@ public class MainActivity extends AppCompatActivity {
         //handle meeting invitation text sent to ZoomHelper
         if (Intent.ACTION_SEND.equals(action) && type != null) {
             if ("text/plain".equals(type)) {
-                handleSendText(myIntent);
+                meetingImportController.handleSendText(myIntent);
             }
         }
 
         //join meeting immediately, otherwise enable app updater
         if (joinImmediately) {
-            Meeting currMeeting = meetingsController.getMeetings().get(meetingIndex);
+            final Meeting currMeeting = meetingsController.getMeetings().get(meetingIndex);
             new ZoomLink(this, currMeeting).launch();
         } else {
-            //TODO: updatetest.xml -> update.xml when finished testing
-            AppUpdater appUpdater = new AppUpdater(this).setUpdateFrom(UpdateFrom.XML).setUpdateXML("https://baldaufwd.de/ZoomHelper/updatetest.xml");
-            APKDownloader apkDownloader = new APKDownloader();
+            final AppUpdater appUpdater = new AppUpdater(this).setUpdateFrom(UpdateFrom.XML).setUpdateXML("https://baldaufwd.de/ZoomHelper/update.xml");
+            final APKDownloader apkDownloader = new APKDownloader();
             appUpdater.setButtonUpdateClickListener((dialog, which) -> apkDownloader.downloadAPK(this, "ZoomHelper.apk", Uri.parse("https://baldaufwd.de/ZoomHelper/ZoomHelper.apk")));
             appUpdater.start();
         }
@@ -143,96 +147,81 @@ public class MainActivity extends AppCompatActivity {
         }
     }
 
+    @Override
+    public boolean onCreateOptionsMenu(Menu menu) {
+        MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.menu, menu);
+        return true;
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        final int item_backup = R.id.menu_backup;
+        final int item_restore = R.id.menu_restore;
+        final int item_settings = R.id.menu_settings;
+        final int item_info = R.id.menu_info;
+        final BackupController backupController = new BackupController();
+
+        switch (item.getItemId()) {
+            case item_backup:
+                backupController.backup(this);
+                break;
+            case item_restore:
+                backupController.restore(this);
+                break;
+            default:
+                break;
+        }
+
+        return true;
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        Uri fileUri = null;
+        String filePath = null;
+
+        if (requestCode == 2) {
+            fileUri = data.getData();
+            filePath = fileUri.getPath();
+        }
+
+        try {
+            new BackupController().restore(this, getContentResolver().openInputStream(fileUri));
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        }
+
+       // new BackupController().restore(this, file.getAbsolutePath());
+    }
+
     private void importFromClipboard() {
         final LinearLayout layoutBegin = findViewById(R.id.layoutBegin);
         final ClipboardManager clipboard = (ClipboardManager) getApplicationContext().getSystemService(CLIPBOARD_SERVICE);
 
-        Snackbar snackbar = Snackbar.make(layoutBegin, R.string.foundImportableMeetingClipboard, Snackbar.LENGTH_INDEFINITE).setDuration(7000);
+        final Snackbar snackbar = Snackbar.make(layoutBegin, R.string.foundImportableMeetingClipboard, Snackbar.LENGTH_INDEFINITE).setDuration(7000);
         snackbar.setAction(R.string.importMeeting, view -> {
             String text = clipboard.getPrimaryClip().getItemAt(0).getText().toString();
-            handleSendText(text);
+            meetingImportController.handleSendText(text);
             ClipData clipData = ClipData.newPlainText("", "");
             clipboard.setPrimaryClip(clipData);
         });
 
         if (clipboard.hasPrimaryClip() && clipboard.getPrimaryClipDescription().hasMimeType(MIMETYPE_TEXT_PLAIN)) {
-            String text = clipboard.getPrimaryClip().getItemAt(0).getText().toString();
-            if (handleSendText(text, true)) {
+            final String text = clipboard.getPrimaryClip().getItemAt(0).getText().toString();
+            if (meetingImportController.handleSendText(text, true)) {
                 snackbar.show();
             }
 
         }
     }
 
-    private void handleSendText(Intent intent) {
-        String sharedText = intent.getStringExtra(Intent.EXTRA_TEXT);
-        handleSendText(sharedText);
-    }
-
-    private void handleSendText(String sharedText) {
-        handleSendText(sharedText, false);
-    }
-
-    private boolean handleSendText(String sharedText, boolean checkOnly) {
-        String meetingID = "";
-        String meetingPWD = "";
-        String meetingName = "";
-
-        if (sharedText != null) {
-            Matcher matcher = Pattern.compile("(?i)(?<=(Meeting-ID:)|(Meeting\\sID:)|(ID:)).+").matcher(sharedText);
-            if (matcher.find()) {
-                meetingID = Objects.requireNonNull(matcher.group(0)).trim();
-            }
-            matcher = Pattern.compile("(?i)(?<=(Kenncode:)|(Passwort:)|(Passcode:)|(Password:)).+").matcher(sharedText);
-            if (matcher.find()) {
-                meetingPWD = Objects.requireNonNull(matcher.group(0)).trim();
-            }
-            matcher = Pattern.compile("(?i)(?<=(Thema:)|(Meeting\\sName:)|(Topic:)).+").matcher(sharedText);
-            if (matcher.find()) {
-                meetingName = Objects.requireNonNull(matcher.group(0)).trim();
-            }
-
-            AlertDialog.Builder builder = new AlertDialog.Builder(this);
-            builder.setTitle(R.string.app_name);
-            builder.setMessage(R.string.meetingAlreadyExists);
-
-            if (meetingID.equals("")) {
-                builder.setMessage(R.string.importError);
-                builder.setPositiveButton(R.string.ok, (dialog, which) -> dialog.dismiss());
-                AlertDialog alert = builder.create();
-                if (!checkOnly) alert.show();
-                return false;
-            } else {
-
-                Meeting mtgToImport = new Meeting(meetingName, meetingID, meetingPWD, "", "");
-
-                if (meetingsController.searchMeetingInList(meetingsController.getMeetings(), mtgToImport.meetingName) == -1 && !checkOnly) {
-                    fillMeeting(mtgToImport);
-                } else {
-                    builder.setPositiveButton(R.string.override, (dialog, which) -> {
-                        int found = meetingsController.searchMeetingInList(meetingsController.getMeetings(), mtgToImport.meetingName);
-                        importMeeting(mtgToImport, false);
-                        fillMeeting(found);
-                        dialog.dismiss();
-                    });
-                    builder.setNegativeButton(R.string.rename, (dialog, which) -> {
-                        mtgToImport.meetingName = "";
-                        fillMeeting(mtgToImport);
-                        dialog.dismiss();
-                    });
-                    AlertDialog alert = builder.create();
-                    if (!checkOnly) alert.show();
-                    return true;
-                }
-            }
-        }
-        return true;
-    }
-
     private void showCreateShortcutUI() {
-        int meeting = meetingsController.searchMeetingInList(meetingsController.getMeetings(), createCurrMeetingFromUI().meetingName);
+        final int meeting = meetingsController.searchMeetingInList(meetingsController.getMeetings(), createCurrMeetingFromUI().getMeetingName());
 
-        AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
 
         builder.setTitle(R.string.app_name);
 
@@ -257,22 +246,22 @@ public class MainActivity extends AppCompatActivity {
                 createMeetingShortcut(meeting, false);
             });
         }
-        AlertDialog alert = builder.create();
+        final AlertDialog alert = builder.create();
         alert.show();
     }
 
     private void createMeetingShortcut(int meetingIndex, boolean joinImmediately) {
-        Meeting meeting = meetingsController.getMeetings().get(meetingIndex);
+        final Meeting meeting = meetingsController.getMeetings().get(meetingIndex);
 
         if (ShortcutManagerCompat.isRequestPinShortcutSupported(this)) {
-            ShortcutInfoCompat shortcutInfo = new ShortcutInfoCompat.Builder(this, meeting.meetingName)
-                    .setShortLabel(meeting.meetingName)
-                    .setLongLabel(meeting.meetingName)
+            ShortcutInfoCompat shortcutInfo = new ShortcutInfoCompat.Builder(this, meeting.getMeetingName())
+                    .setShortLabel(meeting.getMeetingName())
+                    .setLongLabel(meeting.getMeetingName())
                     .setIcon(IconCompat.createWithResource(this, R.mipmap.ic_launcher))
                     .setIntents(new Intent[]{
                             new Intent(this, MainActivity.class)
                                     .setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK)
-                                    .putExtra("meetingName", meeting.meetingName)
+                                    .putExtra("meetingName", meeting.getMeetingName())
                                     .putExtra("joinImmediately", joinImmediately)
                                     .setAction("LOCATION_SHORTCUT"),
                     })
@@ -283,22 +272,12 @@ public class MainActivity extends AppCompatActivity {
         }
     }
 
-    private void shareMeeting(Meeting meeting) {
-        Intent sendIntent = new Intent();
-        sendIntent.setAction(Intent.ACTION_SEND);
-        sendIntent.putExtra(Intent.EXTRA_TEXT, meeting.info());
-        sendIntent.setType("text/plain");
-
-        Intent shareIntent = Intent.createChooser(sendIntent, null);
-        startActivity(shareIntent);
-    }
-
     public void fillBlank() {
-        EditText editMeetingName = findViewById(R.id.TextMeetingName);
-        EditText editID = findViewById(R.id.textBoxID);
-        EditText editPW = findViewById(R.id.editTextTextPassword2);
-        AutoCompleteTextView editName = findViewById(R.id.textBoxName);
-        EditText editAtt = findViewById(R.id.editAtt);
+        final EditText editMeetingName = findViewById(R.id.TextMeetingName);
+        final EditText editID = findViewById(R.id.textBoxID);
+        final EditText editPW = findViewById(R.id.editTextTextPassword2);
+        final AutoCompleteTextView editName = findViewById(R.id.textBoxName);
+        final EditText editAtt = findViewById(R.id.editAtt);
 
         editMeetingName.setText("");
         editID.setText("");
@@ -309,8 +288,8 @@ public class MainActivity extends AppCompatActivity {
     }
 
     public void fillWithSelectedMeeting() {
-        AutoCompleteTextView textMeetingName = findViewById(R.id.TextMeetingName);
-        int search = meetingsController.searchMeetingInList(meetingsController.getMeetings(), textMeetingName.getText().toString());
+        final AutoCompleteTextView textMeetingName = findViewById(R.id.TextMeetingName);
+        final int search = meetingsController.searchMeetingInList(meetingsController.getMeetings(), textMeetingName.getText().toString());
         if (search != -1) {
             fillMeeting(search);
         }
@@ -318,15 +297,15 @@ public class MainActivity extends AppCompatActivity {
 
     @SuppressLint("ClickableViewAccessibility")
     public void fillDropdownMeetingName() {
-        ArrayList<Meeting> meetings = meetingsController.getMeetings();
+        final ArrayList<Meeting> meetings = meetingsController.getMeetings();
 
         String[] meetingNames = new String[meetings.size()];
         for (int i = 0; i < meetings.size(); i++) {
-            meetingNames[i] = meetings.get(i).meetingName;
+            meetingNames[i] = meetings.get(i).getMeetingName();
         }
 
-        AutoCompleteTextView textMeetingName = findViewById(R.id.TextMeetingName);
-        AutoSuggestAdapter adapter = new AutoSuggestAdapter(this, android.R.layout.simple_dropdown_item_1line);
+        final AutoCompleteTextView textMeetingName = findViewById(R.id.TextMeetingName);
+        final AutoSuggestAdapter adapter = new AutoSuggestAdapter(this, android.R.layout.simple_dropdown_item_1line);
         adapter.setData(Arrays.asList(meetingNames));
         textMeetingName.setAdapter(adapter);
 
@@ -337,16 +316,16 @@ public class MainActivity extends AppCompatActivity {
 
     @SuppressLint("ClickableViewAccessibility")
     public void fillDropdownAttendeeName(int meetingIndex) {
-        Meeting meeting = meetingsController.getMeetings().get(meetingIndex);
-        ArrayList<Attendee> attendees = meeting.attendees;
+        final Meeting meeting = meetingsController.getMeetings().get(meetingIndex);
+        final ArrayList<Attendee> attendees = meeting.getAttendees();
 
         String[] attNames = new String[attendees.size()];
         for (int i = 0; i < attendees.size(); i++) {
-            attNames[i] = attendees.get(i).name;
+            attNames[i] = attendees.get(i).getName();
         }
 
-        AutoCompleteTextView textName = findViewById(R.id.textBoxName);
-        AutoSuggestAdapter adapter = new AutoSuggestAdapter(this, android.R.layout.simple_dropdown_item_1line);
+        final AutoCompleteTextView textName = findViewById(R.id.textBoxName);
+        final AutoSuggestAdapter adapter = new AutoSuggestAdapter(this, android.R.layout.simple_dropdown_item_1line);
 
         adapter.setData(Arrays.asList(attNames));
         textName.setAdapter(adapter);
@@ -357,28 +336,28 @@ public class MainActivity extends AppCompatActivity {
     }
 
     private void fillWithSelectedAtt(int meetingIndex) {
-        AutoCompleteTextView textName = findViewById(R.id.textBoxName);
-        EditText editAtt = findViewById(R.id.editAtt);
-        int found = meetingsController.getMeetings().get(meetingIndex).searchAttendee(textName.getText().toString());
-        editAtt.setText(meetingsController.getMeetings().get(meetingIndex).attendees.get(found).num);
+        final AutoCompleteTextView textName = findViewById(R.id.textBoxName);
+        final EditText editAtt = findViewById(R.id.editAtt);
+        final int found = meetingsController.getMeetings().get(meetingIndex).searchAttendee(textName.getText().toString());
+        editAtt.setText(meetingsController.getMeetings().get(meetingIndex).getAttendees().get(found).getNum());
     }
 
     public void fillMeeting(Meeting meeting) {
-        EditText editMeetingName = findViewById(R.id.TextMeetingName);
-        EditText editID = findViewById(R.id.textBoxID);
-        EditText editPW = findViewById(R.id.editTextTextPassword2);
-        EditText editName = findViewById(R.id.textBoxName);
-        EditText editAtt = findViewById(R.id.editAtt);
+        final EditText editMeetingName = findViewById(R.id.TextMeetingName);
+        final EditText editID = findViewById(R.id.textBoxID);
+        final EditText editPW = findViewById(R.id.editTextTextPassword2);
+        final EditText editName = findViewById(R.id.textBoxName);
+        final EditText editAtt = findViewById(R.id.editAtt);
 
         editID.setError(null);
         editID.clearFocus();
 
 
-        editMeetingName.setText(meeting.meetingName);
-        editID.setText(meeting.meetingID);
-        editPW.setText(meeting.meetingPWD);
-        editName.setText(meeting.attendees.get(meeting.lastAtt).name);
-        editAtt.setText(meeting.attendees.get(meeting.lastAtt).num);
+        editMeetingName.setText(meeting.getMeetingName());
+        editID.setText(meeting.getMeetingID());
+        editPW.setText(meeting.getMeetingPWD());
+        editName.setText(meeting.getAttendees().get(meeting.getLastAtt()).getName());
+        editAtt.setText(meeting.getAttendees().get(meeting.getLastAtt()).getNum());
     }
 
     public void fillMeeting(int id) {
@@ -392,63 +371,33 @@ public class MainActivity extends AppCompatActivity {
 
     public void btnJoin_onClick(View view) {
         saveMeetingFromUI();
-        Meeting currMeeting = createCurrMeetingFromUI();
+        final Meeting currMeeting = createCurrMeetingFromUI();
         new ZoomLink(this, currMeeting).launch();
     }
 
     public Meeting createCurrMeetingFromUI() {
-        EditText editMeetingName = findViewById(R.id.TextMeetingName);
-        EditText editID = findViewById(R.id.textBoxID);
-        EditText editPW = findViewById(R.id.editTextTextPassword2);
-        EditText editName = findViewById(R.id.textBoxName);
-        EditText editAtt = findViewById(R.id.editAtt);
+        final EditText editMeetingName = findViewById(R.id.TextMeetingName);
+        final EditText editID = findViewById(R.id.textBoxID);
+        final EditText editPW = findViewById(R.id.editTextTextPassword2);
+        final EditText editName = findViewById(R.id.textBoxName);
+        final EditText editAtt = findViewById(R.id.editAtt);
 
         return new Meeting(editMeetingName.getText().toString(), editID.getText().toString(), editPW.getText().toString(), editName.getText().toString(), editAtt.getText().toString());
     }
 
-    public void importMeeting(Meeting meeting, boolean updateAttendee) {
-        ArrayList<Meeting> listMeetings = meetingsController.getMeetings();
-        int foundCurr = meetingsController.searchMeetingInList(listMeetings, meeting.meetingName);
-        if (foundCurr == -1) {
-            listMeetings.add(meeting);
-            if (listMeetings.size() == 1) {
-                meetingsController.setLastMeeting(0);
-            } else {
-                meetingsController.setLastMeeting(listMeetings.size() - 1);
-            }
-
-        } else {
-            Meeting currMeeting = meetingsController.getMeetings().get(foundCurr);
-            currMeeting.meetingID = meeting.meetingID;
-            currMeeting.meetingPWD = meeting.meetingPWD;
-            if (updateAttendee)
-                currMeeting.updateAttendee(meeting.attendees.get(0).name, meeting.attendees.get(0).num);
-            listMeetings.set(foundCurr, currMeeting);
-            meetingsController.setLastMeeting(foundCurr);
-        }
-        meetingsController.saveMeetingList(listMeetings);
-        fillDropdownMeetingName();
-        fillDropdownAttendeeName(meetingsController.getLastMeeting());
-        Toast.makeText(getApplicationContext(), R.string.meetingSaved, Toast.LENGTH_SHORT).show();
-    }
-
-    public void importMeeting(Meeting meeting) {
-        importMeeting(meeting, true);
-    }
-
     public void saveMeetingFromUI() {
-        Meeting currMeetingUI = createCurrMeetingFromUI();
+        final Meeting currMeetingUI = createCurrMeetingFromUI();
 
-        if (currMeetingUI.meetingID.equals("")) {
-            EditText editID = findViewById(R.id.textBoxID);
+        if (currMeetingUI.getMeetingID().equals("")) {
+            final EditText editID = findViewById(R.id.textBoxID);
             editID.requestFocus();
             editID.setError(getString(R.string.meetingWithoutID));
             return;
-        } else if (currMeetingUI.meetingName.equals("")) {
-            EditText editMName = findViewById(R.id.TextMeetingName);
-            editMName.setText(currMeetingUI.meetingID);
-            currMeetingUI.meetingName = currMeetingUI.meetingID;
+        } else if (currMeetingUI.getMeetingName().equals("")) {
+            final EditText editMName = findViewById(R.id.TextMeetingName);
+            editMName.setText(currMeetingUI.getMeetingID());
+            currMeetingUI.setMeetingName(currMeetingUI.getMeetingID());
         }
-        importMeeting(currMeetingUI);
+        meetingImportController.importMeeting(createCurrMeetingFromUI());
     }
 }

app/src/main/java/de/joel/zoomhelper/Meeting.java

@@ -1,15 +1,57 @@
 package de.joel.zoomhelper;
 
+import android.content.Intent;
+
 import java.io.Serializable;
 import java.util.ArrayList;
 
 public class Meeting implements Serializable {
     private static final long serialVersionUID = 2606722401897866931L;
-    public String meetingName;
-    public String meetingID;
-    public String meetingPWD;
-    public ArrayList<Attendee> attendees;
-    public int lastAtt;
+    private String meetingName;
+    private String meetingID;
+    private String meetingPWD;
+    private ArrayList<Attendee> attendees;
+    private int lastAtt;
+
+    public String getMeetingName() {
+        return meetingName;
+    }
+
+    public void setMeetingName(String meetingName) {
+        this.meetingName = meetingName;
+    }
+
+    public String getMeetingID() {
+        return meetingID;
+    }
+
+    public void setMeetingID(String meetingID) {
+        this.meetingID = meetingID;
+    }
+
+    public String getMeetingPWD() {
+        return meetingPWD;
+    }
+
+    public void setMeetingPWD(String meetingPWD) {
+        this.meetingPWD = meetingPWD;
+    }
+
+    public ArrayList<Attendee> getAttendees() {
+        return attendees;
+    }
+
+    public void setAttendees(ArrayList<Attendee> attendees) {
+        this.attendees = attendees;
+    }
+
+    public int getLastAtt() {
+        return lastAtt;
+    }
+
+    public void setLastAtt(int lastAtt) {
+        this.lastAtt = lastAtt;
+    }
 
     public Meeting(String meetingName, String meetingID, String meetingPWD, String nameAttendee, String numAttendee) {
         this.meetingName = meetingName;
@@ -30,7 +72,7 @@ public class Meeting implements Serializable {
     public int searchAttendee(String name) {
         int found = -1;
         for (int i = 0; i < this.attendees.size(); i++) {
-            if (this.attendees.get(i).name.equals(name)) {
+            if (this.attendees.get(i).getName().equals(name)) {
                 found = i;
                 break;
             }
@@ -45,7 +87,7 @@ public class Meeting implements Serializable {
         if (found == -1) {
             addAttendee(name, num);
         } else {
-            this.attendees.get(found).num = num;
+            this.attendees.get(found).setNum(num);
             this.lastAtt = found;
         }
     }
@@ -55,4 +97,13 @@ public class Meeting implements Serializable {
                 "Meeting-ID: " + this.meetingID + "\n" +
                 "Kenncode: " + this.meetingPWD;
     }
+
+    public Intent share() {
+        final Intent sendIntent = new Intent();
+        sendIntent.setAction(Intent.ACTION_SEND);
+        sendIntent.putExtra(Intent.EXTRA_TEXT, this.info());
+        sendIntent.setType("text/plain");
+
+        return Intent.createChooser(sendIntent, null);
+    }
 }

app/src/main/java/de/joel/zoomhelper/MeetingImportController.java

@@ -0,0 +1,118 @@
+package de.joel.zoomhelper;
+
+import android.content.Intent;
+import android.widget.Toast;
+
+import androidx.appcompat.app.AlertDialog;
+
+import java.util.ArrayList;
+import java.util.Objects;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class MeetingImportController {
+    private final MeetingsController meetingsController;
+    private final MainActivity act;
+
+    public MeetingImportController(MeetingsController meetingsController, MainActivity act) {
+        this.meetingsController = meetingsController;
+        this.act = act;
+    }
+
+    public void handleSendText(Intent intent) {
+        final String sharedText = intent.getStringExtra(Intent.EXTRA_TEXT);
+        handleSendText(sharedText);
+    }
+
+    public void handleSendText(String sharedText) {
+        handleSendText(sharedText, false);
+    }
+
+    public boolean handleSendText(String sharedText, boolean checkOnly) {
+        String meetingID = "";
+        String meetingPWD = "";
+        String meetingName = "";
+
+        if (sharedText != null) {
+            Matcher matcher = Pattern.compile("(?i)(?<=(Meeting-ID:)|(Meeting\\sID:)|(ID:)).+").matcher(sharedText);
+            if (matcher.find()) {
+                meetingID = Objects.requireNonNull(matcher.group(0)).trim();
+            }
+            matcher = Pattern.compile("(?i)(?<=(Kenncode:)|(Passwort:)|(Passcode:)|(Password:)).+").matcher(sharedText);
+            if (matcher.find()) {
+                meetingPWD = Objects.requireNonNull(matcher.group(0)).trim();
+            }
+            matcher = Pattern.compile("(?i)(?<=(Thema:)|(Meeting\\sName:)|(Topic:)).+").matcher(sharedText);
+            if (matcher.find()) {
+                meetingName = Objects.requireNonNull(matcher.group(0)).trim();
+            }
+
+            final AlertDialog.Builder builder = new AlertDialog.Builder(act);
+            builder.setTitle(R.string.app_name);
+            builder.setMessage(R.string.meetingAlreadyExists);
+
+            if (meetingID.equals("")) {
+                builder.setMessage(R.string.importError);
+                builder.setPositiveButton(R.string.ok, (dialog, which) -> dialog.dismiss());
+                final AlertDialog alert = builder.create();
+                if (!checkOnly) alert.show();
+                return false;
+            } else {
+
+                final Meeting mtgToImport = new Meeting(meetingName, meetingID, meetingPWD, "", "");
+
+                if (meetingsController.searchMeetingInList(meetingsController.getMeetings(), mtgToImport.getMeetingName()) == -1 && !checkOnly) {
+                    act.fillMeeting(mtgToImport);
+                } else {
+                    builder.setPositiveButton(R.string.override, (dialog, which) -> {
+                        final int found = meetingsController.searchMeetingInList(meetingsController.getMeetings(), mtgToImport.getMeetingName());
+                        importMeeting(mtgToImport, false);
+                        act.fillMeeting(found);
+                        dialog.dismiss();
+                    });
+                    builder.setNegativeButton(R.string.rename, (dialog, which) -> {
+                        mtgToImport.setMeetingName("");
+                        act.fillMeeting(mtgToImport);
+                        dialog.dismiss();
+                    });
+                    final AlertDialog alert = builder.create();
+                    if (!checkOnly) alert.show();
+                    return true;
+                }
+            }
+        }
+        return true;
+    }
+
+    public void importMeeting(Meeting meeting, boolean updateAttendee) {
+        final ArrayList<Meeting> listMeetings = meetingsController.getMeetings();
+        final int foundCurr = meetingsController.searchMeetingInList(listMeetings, meeting.getMeetingName());
+
+        if (foundCurr == -1) {
+            listMeetings.add(meeting);
+            if (listMeetings.size() == 1) {
+                meetingsController.setLastMeeting(0);
+            } else {
+                meetingsController.setLastMeeting(listMeetings.size() - 1);
+            }
+
+        } else {
+            final Meeting currMeeting = meetingsController.getMeetings().get(foundCurr);
+            currMeeting.setMeetingID(meeting.getMeetingID());
+            currMeeting.setMeetingPWD(meeting.getMeetingPWD());
+            if (updateAttendee)
+                currMeeting.updateAttendee(meeting.getAttendees().get(0).getName(), meeting.getAttendees().get(0).getNum());
+            listMeetings.set(foundCurr, currMeeting);
+            meetingsController.setLastMeeting(foundCurr);
+        }
+        meetingsController.saveMeetingList(listMeetings);
+        act.fillDropdownMeetingName();
+        act.fillDropdownAttendeeName(meetingsController.getLastMeeting());
+        Toast.makeText(act, R.string.meetingSaved, Toast.LENGTH_SHORT).show();
+    }
+
+    public void importMeeting(Meeting meeting) {
+        importMeeting(meeting, true);
+    }
+
+}

app/src/main/java/de/joel/zoomhelper/MeetingsController.java

@@ -119,6 +119,7 @@ public class MeetingsController {
         return meetingList;
     }
 
+    //TODO: Nach Remove bleibt Meeting noch stehen
     public void removeMeeting(int meeting) {
         MainActivity act = (MainActivity)context;
         ArrayList<Meeting> meetings = getMeetings();
@@ -127,7 +128,7 @@ public class MeetingsController {
             AlertDialog.Builder builder = new AlertDialog.Builder(context);
 
             builder.setTitle(R.string.app_name);
-            builder.setMessage(context.getString(R.string.suretoremove, meetings.get(meeting).meetingName));
+            builder.setMessage(context.getString(R.string.suretoremove, meetings.get(meeting).getMeetingName()));
 
             builder.setPositiveButton(R.string.yes, (dialog, which) -> {
                 dialog.dismiss();
@@ -162,7 +163,7 @@ public class MeetingsController {
     public int searchMeetingInList(ArrayList<Meeting> meetings, String name) {
         int found = -1;
         for (int i = 0; i < meetings.size(); i++) {
-            if (meetings.get(i).meetingName.equals(name)) {
+            if (meetings.get(i).getMeetingName().equals(name)) {
                 found = i;
                 break;
             }

app/src/main/java/de/joel/zoomhelper/ZoomLink.java

@@ -23,13 +23,13 @@ public class ZoomLink {
         builder.scheme("zoomus")
                 .authority("zoom.us")
                 .appendPath("join")
-                .appendQueryParameter("confno", this.meeting.meetingID.replace(" ", ""))
-                .appendQueryParameter("pwd", this.meeting.meetingPWD);
+                .appendQueryParameter("confno", this.meeting.getMeetingID().replace(" ", ""))
+                .appendQueryParameter("pwd", this.meeting.getMeetingPWD());
 
-        if (!Objects.equals(this.meeting.attendees.get(this.meeting.lastAtt).num, "")) {
-            builder.appendQueryParameter("uname", this.meeting.attendees.get(this.meeting.lastAtt).name + " (" + this.meeting.attendees.get(this.meeting.lastAtt).num + ")");
+        if (!Objects.equals(this.meeting.getAttendees().get(this.meeting.getLastAtt()).getNum(), "")) {
+            builder.appendQueryParameter("uname", this.meeting.getAttendees().get(this.meeting.getLastAtt()).getName() + " (" + this.meeting.getAttendees().get(this.meeting.getLastAtt()).getNum() + ")");
         } else
-            builder.appendQueryParameter("uname", this.meeting.attendees.get(this.meeting.lastAtt).name);
+            builder.appendQueryParameter("uname", this.meeting.getAttendees().get(this.meeting.getLastAtt()).getName());
         return builder.build().toString();
     }
 

app/src/main/res/layout/buttons.xml

@@ -11,8 +11,7 @@
         android:layout_marginTop="22dp"
         android:onClick="btnSave_onClick"
         android:text="@string/Save"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/imageTrash" />
+        app:layout_constraintStart_toStartOf="parent" />
 
     <Button
         android:id="@+id/btnJoin"

app/src/main/res/layout/prompts.xml

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/layout_root"
+    android:layout_width="fill_parent"
+    android:layout_height="fill_parent"
+    android:orientation="vertical"
+    android:padding="10dp" >
+
+    <TextView
+        android:id="@+id/textView1"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/password_input"
+        android:textAppearance="?android:attr/textAppearanceLarge" />
+
+    <EditText
+        android:id="@+id/editTextDialogUserInput"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" >
+
+        <requestFocus />
+
+    </EditText>
+
+</LinearLayout>

app/src/main/res/menu/menu.xml

@@ -0,0 +1,10 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:id="@+id/menu_backup"
+        android:title="@string/backup" />
+    <item android:id="@+id/menu_restore"
+        android:title="@string/restore" />
+    <item android:id="@+id/menu_settings"
+        android:title="@string/settings" />
+    <item android:id="@+id/menu_info"
+        android:title="@string/info" />
+</menu>

app/src/main/res/values/strings.xml

@@ -41,5 +41,10 @@
     <string name="cancel">abbrechen</string>
     <string name="meetingSaved">Meeting gespeichert</string>
     <string name="meetingWithoutID">Meeting kann nicht ohne ID gespeichert werden!</string>
+    <string name="backup">Daten sichern</string>
+    <string name="restore">Daten wiederherstellen</string>
+    <string name="settings">Einstellungen</string>
+    <string name="info">Info</string>
+    <string name="password_input">"Passworteingabe: "</string>
 
 </resources>