added String values

.idea/inspectionProfiles/Project_Default.xml

@@ -0,0 +1,13 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="ConstantConditions" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="SUGGEST_NULLABLE_ANNOTATIONS" value="false" />
+      <option name="DONT_REPORT_TRUE_ASSERT_STATEMENTS" value="false" />
+    </inspection_tool>
+    <inspection_tool class="SerializableHasSerialVersionUIDField" enabled="true" level="WARNING" enabled_by_default="true">
+      <option name="ignoreAnonymousInnerClasses" value="false" />
+      <option name="superClassString" value="java.awt.Component" />
+    </inspection_tool>
+  </profile>
+</component>

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

@@ -3,6 +3,7 @@ package de.joel.zoomhelper;
 import java.io.Serializable;
 
 public class Attendee implements Serializable {
+    private static final long serialVersionUID = 6196688086302483907L;
     public String name;
     public String num;
 

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

@@ -4,10 +4,8 @@ import android.annotation.SuppressLint;
 import android.content.ClipData;
 import android.content.ClipboardManager;
 import android.content.Intent;
-import android.content.SharedPreferences;
 import android.net.Uri;
 import android.os.Bundle;
-import android.util.Base64;
 import android.view.View;
 import android.widget.AutoCompleteTextView;
 import android.widget.EditText;
@@ -27,12 +25,6 @@ import com.github.javiersantos.appupdater.enums.UpdateFrom;
 import com.google.android.material.snackbar.Snackbar;
 import com.google.android.material.textfield.TextInputLayout;
 
-import java.io.ByteArrayInputStream;
-import java.io.ByteArrayOutputStream;
-import java.io.EOFException;
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Objects;
@@ -43,29 +35,45 @@ import static android.content.ClipDescription.MIMETYPE_TEXT_PLAIN;
 
 public class MainActivity extends AppCompatActivity {
 
-    public boolean testing;
+    private final MeetingsController meetingsController = new MeetingsController(this);
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
-
-        Intent myIntent = getIntent(); // gets the previously created intent
+        //get intent parameters
+        Intent myIntent = getIntent();
         String action = myIntent.getAction();
         String type = myIntent.getType();
-
-
         String meetingName = myIntent.getStringExtra("meetingName");
         boolean joinImmediately = myIntent.getBooleanExtra("joinImmediately", false);
-        testing = myIntent.getBooleanExtra("testing", false);
-
-
+        //boolean testing = myIntent.getBooleanExtra("testing", false);
 
         setContentView(R.layout.activity_main);
+
+        //views
         final ScrollView scrollview = findViewById(R.id.scrollArea);
+        final ImageView saveIcon = findViewById(R.id.imageSave);
+        final ImageView trashIcon = findViewById(R.id.imageTrash);
+        final ImageView AttIcon = findViewById(R.id.imageAttend);
+        final ImageView AddIcon = findViewById(R.id.imageAdd);
+        final EditText meetingID = findViewById(R.id.textBoxID);
+        final ImageView ShareIcon = findViewById(R.id.imageShare);
+        final ImageView ShortcutIcon = findViewById(R.id.imageCreateShortcut);
 
+        //add event listeners to views
+        saveIcon.setOnClickListener(v -> saveMeetingFromUI());
+        trashIcon.setOnClickListener(v -> meetingsController.removeMeeting(meetingsController.searchMeetingInList(meetingsController.getMeetings(), createCurrMeetingFromUI().meetingName)));
+        AttIcon.setOnClickListener(v -> btnJoin_onClick(null));
+        AddIcon.setOnClickListener(v -> {
+            fillBlank();
+            meetingID.requestFocus();
+        });
+        ShareIcon.setOnClickListener(v -> shareMeeting(createCurrMeetingFromUI()));
+        ShortcutIcon.setOnClickListener(v -> showCreateShortcutUI());
 
-        int meetingIndex = searchMeetingInList(getMeetings(), meetingName);
+        //show alert if meeting from shortcut not found
+        int meetingIndex = meetingsController.searchMeetingInList(meetingsController.getMeetings(), meetingName);
         if (meetingIndex == -1) {
             if (meetingName != null) {
                 AlertDialog.Builder dialog = new AlertDialog.Builder(this);
@@ -77,23 +85,23 @@ public class MainActivity extends AppCompatActivity {
             joinImmediately = false;
         }
 
-        if (meetingIndex <= getMeetings().size() && meetingIndex != -1) {
-            setLastMeeting(meetingIndex);
+        //adjust ui for meeting from shortcut
+        if (meetingIndex <= meetingsController.getMeetings().size() && meetingIndex != -1) {
+            meetingsController.setLastMeeting(meetingIndex);
             AutoCompleteTextView textMeetingName = findViewById(R.id.TextMeetingName);
             textMeetingName.setEnabled(false);
             textMeetingName.setAdapter(null);
-            ImageView imageTrash = findViewById(R.id.imageTrash);
-            imageTrash.setVisibility(View.GONE);
+            trashIcon.setVisibility(View.GONE);
             TextInputLayout layoutMeetingName = findViewById(R.id.layoutMeetingName);
             layoutMeetingName.setEndIconMode(TextInputLayout.END_ICON_NONE);
         }
 
-
-        //watchMeetingNameBox();
         fillDropdownMeetingName();
-        /*if (getLastMeeting() != -1) {
+
+        //fill ui with data from last selected meeting or show error if config version changed or index out of bounds
+        if (meetingsController.getLastMeeting() != -1) {
             try {
-                fillMeeting(getLastMeeting());
+                fillMeeting(meetingsController.getLastMeeting());
                 scrollview.post(() -> scrollview.scrollTo(0, scrollview.getChildAt(0).getHeight()));
             } catch (IndexOutOfBoundsException e) {
                 AlertDialog.Builder dialog = new AlertDialog.Builder(this);
@@ -101,28 +109,24 @@ public class MainActivity extends AppCompatActivity {
                 dialog.setTitle(R.string.hint);
                 AlertDialog alertDialog = dialog.create();
                 alertDialog.show();
-                setLastMeeting(-1);
-                saveMeetingList(new ArrayList<>());
-            }
-        }*/
-        watchSaveIcon();
-        watchAttIcon();
-        watchDeleteIcon();
-        watchNewIcon();
-        watchShareIcon();
-        watchShortcutIcon();
-
-        if (Intent.ACTION_SEND.equals(action) && type != null) {
-            if ("text/plain".equals(type)) {
-                handleSendText(myIntent); // Handle text being sent
+                meetingsController.setLastMeeting(-1);
+                meetingsController.saveMeetingList(new ArrayList<>());
             }
         }
 
+        //handle meeting invitation text sent to ZoomHelper
+        if (Intent.ACTION_SEND.equals(action) && type != null) {
+            if ("text/plain".equals(type)) {
+                handleSendText(myIntent);
+            }
+        }
+
+        //join meeting immediately, otherwise enable app updater
         if (joinImmediately) {
-            Meeting currMeeting = getMeetings().get(meetingIndex);
-            String url = buildZoomURL(currMeeting.meetingID, currMeeting.meetingPWD, currMeeting.attendees.get(currMeeting.lastAtt).name, currMeeting.attendees.get(currMeeting.lastAtt).num);
-            launchZoomUrl(url);
+            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();
             appUpdater.setButtonUpdateClickListener((dialog, which) -> apkDownloader.downloadAPK(this, "ZoomHelper.apk", Uri.parse("https://baldaufwd.de/ZoomHelper/ZoomHelper.apk")));
@@ -132,18 +136,18 @@ public class MainActivity extends AppCompatActivity {
 
     @Override
     public void onWindowFocusChanged(boolean hasFocus) {
+        //check for importable meeting invitation from clipboard when ZoomHelper gained focus
         super.onWindowFocusChanged(hasFocus);
         if (hasFocus) {
             importFromClipboard();
         }
     }
 
-
     private void importFromClipboard() {
-        LinearLayout layoutBegin = findViewById(R.id.layoutBegin);
-        ClipboardManager clipboard = (ClipboardManager) getApplicationContext().getSystemService(CLIPBOARD_SERVICE);
+        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);
+        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);
@@ -177,15 +181,15 @@ public class MainActivity extends AppCompatActivity {
         if (sharedText != null) {
             Matcher matcher = Pattern.compile("(?i)(?<=(Meeting-ID:)|(Meeting\\sID:)|(ID:)).+").matcher(sharedText);
             if (matcher.find()) {
-                meetingID = matcher.group(0).trim();
+                meetingID = Objects.requireNonNull(matcher.group(0)).trim();
             }
             matcher = Pattern.compile("(?i)(?<=(Kenncode:)|(Passwort:)|(Passcode:)|(Password:)).+").matcher(sharedText);
             if (matcher.find()) {
-                meetingPWD = matcher.group(0).trim();
+                meetingPWD = Objects.requireNonNull(matcher.group(0)).trim();
             }
             matcher = Pattern.compile("(?i)(?<=(Thema:)|(Meeting\\sName:)|(Topic:)).+").matcher(sharedText);
             if (matcher.find()) {
-                meetingName = matcher.group(0).trim();
+                meetingName = Objects.requireNonNull(matcher.group(0)).trim();
             }
 
             AlertDialog.Builder builder = new AlertDialog.Builder(this);
@@ -194,9 +198,7 @@ public class MainActivity extends AppCompatActivity {
 
             if (meetingID.equals("")) {
                 builder.setMessage(R.string.importError);
-                builder.setPositiveButton(R.string.ok, (dialog, which) -> {
-                    dialog.dismiss();
-                });
+                builder.setPositiveButton(R.string.ok, (dialog, which) -> dialog.dismiss());
                 AlertDialog alert = builder.create();
                 if (!checkOnly) alert.show();
                 return false;
@@ -204,11 +206,11 @@ public class MainActivity extends AppCompatActivity {
 
                 Meeting mtgToImport = new Meeting(meetingName, meetingID, meetingPWD, "", "");
 
-                if (searchMeetingInList(getMeetings(), mtgToImport.meetingName) == -1 && !checkOnly) {
+                if (meetingsController.searchMeetingInList(meetingsController.getMeetings(), mtgToImport.meetingName) == -1 && !checkOnly) {
                     fillMeeting(mtgToImport);
                 } else {
                     builder.setPositiveButton(R.string.override, (dialog, which) -> {
-                        int found = searchMeetingInList(getMeetings(), mtgToImport.meetingName);
+                        int found = meetingsController.searchMeetingInList(meetingsController.getMeetings(), mtgToImport.meetingName);
                         importMeeting(mtgToImport, false);
                         fillMeeting(found);
                         dialog.dismiss();
@@ -227,13 +229,8 @@ public class MainActivity extends AppCompatActivity {
         return true;
     }
 
-    private void watchShortcutIcon() {
-        ImageView ShortcutIcon = findViewById(R.id.imageCreateShortcut);
-        ShortcutIcon.setOnClickListener(v -> showCreateShortcutUI());
-    }
-
     private void showCreateShortcutUI() {
-        int meeting = searchMeetingInList(getMeetings(), createCurrMeetingFromUI().meetingName);
+        int meeting = meetingsController.searchMeetingInList(meetingsController.getMeetings(), createCurrMeetingFromUI().meetingName);
 
         AlertDialog.Builder builder = new AlertDialog.Builder(this);
 
@@ -247,11 +244,8 @@ public class MainActivity extends AppCompatActivity {
                 showCreateShortcutUI();
 
             });
-            builder.setNegativeButton(R.string.cancel, (dialog, which) -> {
-                dialog.dismiss();
-            });
-        }
-        else {
+            builder.setNegativeButton(R.string.cancel, (dialog, which) -> dialog.dismiss());
+        } else {
             builder.setMessage(R.string.WantToJoinImmediately);
             builder.setPositiveButton(R.string.joinImmediately, (dialog, which) -> {
                 dialog.dismiss();
@@ -265,13 +259,10 @@ public class MainActivity extends AppCompatActivity {
         }
         AlertDialog alert = builder.create();
         alert.show();
-
-        //createMeetingShortcut(searchMeetingInList(getMeetings(), createCurrMeetingFromUI().meetingName), false);
     }
 
     private void createMeetingShortcut(int meetingIndex, boolean joinImmediately) {
-
-        Meeting meeting = getMeetings().get(meetingIndex);
+        Meeting meeting = meetingsController.getMeetings().get(meetingIndex);
 
         if (ShortcutManagerCompat.isRequestPinShortcutSupported(this)) {
             ShortcutInfoCompat shortcutInfo = new ShortcutInfoCompat.Builder(this, meeting.meetingName)
@@ -292,12 +283,6 @@ public class MainActivity extends AppCompatActivity {
         }
     }
 
-
-    private void watchShareIcon() {
-        ImageView ShareIcon = findViewById(R.id.imageShare);
-        ShareIcon.setOnClickListener(v -> shareMeeting(createCurrMeetingFromUI()));
-    }
-
     private void shareMeeting(Meeting meeting) {
         Intent sendIntent = new Intent();
         sendIntent.setAction(Intent.ACTION_SEND);
@@ -308,65 +293,6 @@ public class MainActivity extends AppCompatActivity {
         startActivity(shareIntent);
     }
 
-    private void watchNewIcon() {
-        ImageView AddIcon = findViewById(R.id.imageAdd);
-        EditText meetingID = findViewById(R.id.textBoxID);
-        AddIcon.setOnClickListener(v -> {
-            fillBlank();
-            meetingID.requestFocus();
-        });
-    }
-
-    private void watchAttIcon() {
-        ImageView AttIcon = findViewById(R.id.imageAttend);
-        AttIcon.setOnClickListener(v -> btnJoin_onClick(null));
-    }
-
-    private void watchDeleteIcon() {
-        ImageView trashIcon = findViewById(R.id.imageTrash);
-        trashIcon.setOnClickListener(v -> removeMeeting(searchMeetingInList(getMeetings(), createCurrMeetingFromUI().meetingName)));
-    }
-
-    private void removeMeeting(int meeting) {
-        ArrayList<Meeting> meetings = getMeetings();
-        if (meetings.size() > 0 && meeting != -1) {
-
-            AlertDialog.Builder builder = new AlertDialog.Builder(this);
-
-            builder.setTitle(R.string.app_name);
-            builder.setMessage(getString(R.string.suretoremove, meetings.get(meeting).meetingName));
-
-            builder.setPositiveButton(R.string.yes, (dialog, which) -> {
-                dialog.dismiss();
-                meetings.remove(meeting);
-                saveMeetingList(meetings);
-
-                if (meetings.size() > 1) {
-                    fillDropdownMeetingName();
-                    if (getLastMeeting() > meetings.size() - 1) {
-                        setLastMeeting(meetings.size() - 1);
-                        fillMeeting(getLastMeeting());
-                    }
-                } else if (meetings.size() == 1) {
-                    setLastMeeting(0);
-                    fillDropdownMeetingName();
-                    fillMeeting(getLastMeeting());
-                } else {
-                    setLastMeeting(-1);
-                    fillDropdownMeetingName();
-                    fillBlank();
-                }
-            });
-
-            builder.setNegativeButton(R.string.no, (dialog, which) -> dialog.dismiss());
-
-            AlertDialog alert = builder.create();
-            alert.show();
-
-        }
-    }
-
-
     public void fillBlank() {
         EditText editMeetingName = findViewById(R.id.TextMeetingName);
         EditText editID = findViewById(R.id.textBoxID);
@@ -382,24 +308,9 @@ public class MainActivity extends AppCompatActivity {
         editAtt.setText("");
     }
 
-    private void watchSaveIcon() {
-        ImageView saveIcon = findViewById(R.id.imageSave);
-        saveIcon.setOnClickListener(v -> saveMeetingFromUI());
-    }
-
-    public void watchMeetingNameBox() {
-        EditText meetingNameBox = findViewById(R.id.TextMeetingName);
-        meetingNameBox.setOnFocusChangeListener((v, hasFocus) -> {
-            if (!hasFocus) {
-                fillWithSelectedMeeting();
-            }
-
-        });
-    }
-
     public void fillWithSelectedMeeting() {
         AutoCompleteTextView textMeetingName = findViewById(R.id.TextMeetingName);
-        int search = searchMeetingInList(getMeetings(), textMeetingName.getText().toString());
+        int search = meetingsController.searchMeetingInList(meetingsController.getMeetings(), textMeetingName.getText().toString());
         if (search != -1) {
             fillMeeting(search);
         }
@@ -407,7 +318,7 @@ public class MainActivity extends AppCompatActivity {
 
     @SuppressLint("ClickableViewAccessibility")
     public void fillDropdownMeetingName() {
-        ArrayList<Meeting> meetings = getMeetings();
+        ArrayList<Meeting> meetings = meetingsController.getMeetings();
 
         String[] meetingNames = new String[meetings.size()];
         for (int i = 0; i < meetings.size(); i++) {
@@ -415,7 +326,6 @@ public class MainActivity extends AppCompatActivity {
         }
 
         AutoCompleteTextView textMeetingName = findViewById(R.id.TextMeetingName);
-        //ImageView dropdown = findViewById(R.id.iconDropdownMeetingName);
         AutoSuggestAdapter adapter = new AutoSuggestAdapter(this, android.R.layout.simple_dropdown_item_1line);
         adapter.setData(Arrays.asList(meetingNames));
         textMeetingName.setAdapter(adapter);
@@ -423,16 +333,11 @@ public class MainActivity extends AppCompatActivity {
         textMeetingName.setOnTouchListener((paramView, paramMotionEvent) -> false);
 
         textMeetingName.setOnItemClickListener((arg0, view, arg2, arg3) -> fillWithSelectedMeeting());
-
-        /*dropdown.setOnClickListener(v -> {
-            textMeetingName.showDropDown();
-            adapter.getFilter().filter(null);
-        });*/
     }
 
     @SuppressLint("ClickableViewAccessibility")
     public void fillDropdownAttendeeName(int meetingIndex) {
-        Meeting meeting = getMeetings().get(meetingIndex);
+        Meeting meeting = meetingsController.getMeetings().get(meetingIndex);
         ArrayList<Attendee> attendees = meeting.attendees;
 
         String[] attNames = new String[attendees.size()];
@@ -441,29 +346,23 @@ public class MainActivity extends AppCompatActivity {
         }
 
         AutoCompleteTextView textName = findViewById(R.id.textBoxName);
-        //ImageView dropdown = findViewById(R.id.iconDropdownAttName);
         AutoSuggestAdapter adapter = new AutoSuggestAdapter(this, android.R.layout.simple_dropdown_item_1line);
+
         adapter.setData(Arrays.asList(attNames));
         textName.setAdapter(adapter);
 
         textName.setOnTouchListener((paramView, paramMotionEvent) -> false);
-
         textName.setOnItemClickListener((arg0, view, arg2, arg3) -> fillWithSelectedAtt(meetingIndex));
 
-        /*dropdown.setOnClickListener(v -> {
-            textName.showDropDown();
-            adapter.getFilter().filter(null);
-        });*/
     }
 
     private void fillWithSelectedAtt(int meetingIndex) {
         AutoCompleteTextView textName = findViewById(R.id.textBoxName);
         EditText editAtt = findViewById(R.id.editAtt);
-        int found = getMeetings().get(meetingIndex).searchAttendee(textName.getText().toString());
-        editAtt.setText(getMeetings().get(meetingIndex).attendees.get(found).num);
+        int found = meetingsController.getMeetings().get(meetingIndex).searchAttendee(textName.getText().toString());
+        editAtt.setText(meetingsController.getMeetings().get(meetingIndex).attendees.get(found).num);
     }
 
-
     public void fillMeeting(Meeting meeting) {
         EditText editMeetingName = findViewById(R.id.TextMeetingName);
         EditText editID = findViewById(R.id.textBoxID);
@@ -483,155 +382,18 @@ public class MainActivity extends AppCompatActivity {
     }
 
     public void fillMeeting(int id) {
-        fillMeeting(getMeetings().get(id));
+        fillMeeting(meetingsController.getMeetings().get(id));
         fillDropdownAttendeeName(id);
     }
 
-
-    private void launchZoomUrl(String url) {
-        Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url));
-        if (intent.resolveActivity(getPackageManager()) != null) {
-            startActivity(intent);
-        }
-        if (testing) {
-            //For Debugging: Show URL in Alert
-            AlertDialog.Builder dialog = new AlertDialog.Builder(this);
-            dialog.setMessage(url);
-            dialog.setTitle("Zoom URL (for testing)");
-            AlertDialog alertDialog = dialog.create();
-            alertDialog.show();
-        }
-    }
-
-
-    private String buildZoomURL(String confno, String pwd, String name, String attendees) {
-        Uri.Builder builder = new Uri.Builder();
-        builder.scheme("zoomus")
-                .authority("zoom.us")
-                .appendPath("join")
-                .appendQueryParameter("confno", confno.replace(" ", ""))
-                .appendQueryParameter("pwd", pwd);
-
-        if (!Objects.equals(attendees, "")) {
-            builder.appendQueryParameter("uname", name + " (" + attendees + ")");
-        } else
-            builder.appendQueryParameter("uname", name);
-        return builder.build().toString();
-    }
-
-    public String meetingsToString(ArrayList<Meeting> listMeetings) {
-        ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
-        ObjectOutputStream objOutputStream = null;
-        try {
-            objOutputStream = new ObjectOutputStream(byteArrayOutputStream);
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        for (Object obj : listMeetings) {
-
-            try {
-                if (objOutputStream == null) throw new AssertionError();
-                objOutputStream.writeObject(obj);
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-            try {
-                objOutputStream.reset();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-        try {
-            if (objOutputStream == null) throw new AssertionError();
-            objOutputStream.close();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        return Base64.encodeToString(byteArrayOutputStream.toByteArray(), 0);
-    }
-
-
-    public ArrayList<Meeting> stringToMeetings(String string) {
-        byte[] bytes = Base64.decode(string, 0);
-
-        ArrayList<Meeting> listMeetings = new ArrayList<>();
-        ByteArrayInputStream bis = new ByteArrayInputStream(bytes);
-        ObjectInputStream obj = null;
-        try {
-            obj = new ObjectInputStream(bis);
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
-        try {
-            while (bis.available() != -1) {
-                //Read object from file
-                if (obj == null) throw new AssertionError();
-                Meeting meeting = (Meeting) obj.readObject();
-                listMeetings.add(meeting);
-            }
-        } catch (EOFException ex) {
-            //ex.printStackTrace();
-        } catch (IOException | ClassNotFoundException e) {
-            e.printStackTrace();
-        }
-        return listMeetings;
-    }
-
-    @SuppressLint("ApplySharedPref")
-    public void saveMeetingList(ArrayList<Meeting> meetingList) {
-        SharedPreferences mPrefs = getPreferences(MODE_PRIVATE);
-        SharedPreferences.Editor prefsEditor = mPrefs.edit();
-        prefsEditor.putString("Meetings", meetingsToString(meetingList));
-        prefsEditor.commit();
-    }
-
-    @SuppressLint("ApplySharedPref")
-    public void setLastMeeting(int id) {
-        SharedPreferences mPrefs = getPreferences(MODE_PRIVATE);
-        SharedPreferences.Editor prefsEditor = mPrefs.edit();
-        prefsEditor.putInt("LastMeeting", id);
-        prefsEditor.commit();
-    }
-
-    public int getLastMeeting() {
-        SharedPreferences mPrefs = getPreferences(MODE_PRIVATE);
-        return mPrefs.getInt("LastMeeting", -1);
-    }
-
-
-    public ArrayList<Meeting> getMeetings() {
-        SharedPreferences mPrefs = getPreferences(MODE_PRIVATE);
-        String value = mPrefs.getString("Meetings", "");
-        ArrayList<Meeting> meetingList;
-        if (value.equals("")) {
-            meetingList = new ArrayList<>();
-        } else {
-            meetingList = stringToMeetings(value);
-        }
-        return meetingList;
-    }
-
-    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)) {
-                found = i;
-                break;
-            }
-        }
-        return found;
-    }
-
     public void btnSave_onClick(View view) {
         saveMeetingFromUI();
     }
 
-
     public void btnJoin_onClick(View view) {
         saveMeetingFromUI();
         Meeting currMeeting = createCurrMeetingFromUI();
-        String url = buildZoomURL(currMeeting.meetingID, currMeeting.meetingPWD, currMeeting.attendees.get(currMeeting.lastAtt).name, currMeeting.attendees.get(currMeeting.lastAtt).num);
-        launchZoomUrl(url);
+        new ZoomLink(this, currMeeting).launch();
     }
 
     public Meeting createCurrMeetingFromUI() {
@@ -644,31 +406,30 @@ public class MainActivity extends AppCompatActivity {
         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 = getMeetings();
-        int foundCurr = searchMeetingInList(listMeetings, meeting.meetingName);
+        ArrayList<Meeting> listMeetings = meetingsController.getMeetings();
+        int foundCurr = meetingsController.searchMeetingInList(listMeetings, meeting.meetingName);
         if (foundCurr == -1) {
             listMeetings.add(meeting);
             if (listMeetings.size() == 1) {
-                setLastMeeting(0);
+                meetingsController.setLastMeeting(0);
             } else {
-                setLastMeeting(listMeetings.size() - 1);
+                meetingsController.setLastMeeting(listMeetings.size() - 1);
             }
 
         } else {
-            Meeting currMeeting = getMeetings().get(foundCurr);
+            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);
-            setLastMeeting(foundCurr);
+            meetingsController.setLastMeeting(foundCurr);
         }
-        saveMeetingList(listMeetings);
+        meetingsController.saveMeetingList(listMeetings);
         fillDropdownMeetingName();
-        fillDropdownAttendeeName(getLastMeeting());
-        Toast.makeText(getApplicationContext(), "Meeting gespeichert", Toast.LENGTH_SHORT).show();
+        fillDropdownAttendeeName(meetingsController.getLastMeeting());
+        Toast.makeText(getApplicationContext(), R.string.meetingSaved, Toast.LENGTH_SHORT).show();
     }
 
     public void importMeeting(Meeting meeting) {
@@ -681,7 +442,7 @@ public class MainActivity extends AppCompatActivity {
         if (currMeetingUI.meetingID.equals("")) {
             EditText editID = findViewById(R.id.textBoxID);
             editID.requestFocus();
-            editID.setError("Meeting kann nicht ohne ID gespeichert werden!");
+            editID.setError(getString(R.string.meetingWithoutID));
             return;
         } else if (currMeetingUI.meetingName.equals("")) {
             EditText editMName = findViewById(R.id.TextMeetingName);
@@ -690,5 +451,4 @@ public class MainActivity extends AppCompatActivity {
         }
         importMeeting(currMeetingUI);
     }
-
 }

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

@@ -4,6 +4,7 @@ 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;

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

@@ -17,13 +17,15 @@ import java.io.ObjectOutputStream;
 import java.util.ArrayList;
 
 public class MeetingsController {
-    private Context context;
+    private final Context context;
+    private final Activity activity;
 
     public MeetingsController(Context context) {
         this.context = context;
+        this.activity = (Activity) context;
     }
 
-    Activity activity = (Activity) context;
+
 
     public String meetingsToString(ArrayList<Meeting> listMeetings) {
         ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
@@ -117,7 +119,7 @@ public class MeetingsController {
         return meetingList;
     }
 
-    private void removeMeeting(int meeting) {
+    public void removeMeeting(int meeting) {
         MainActivity act = (MainActivity)context;
         ArrayList<Meeting> meetings = getMeetings();
         if (meetings.size() > 0 && meeting != -1) {
@@ -156,4 +158,15 @@ 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)) {
+                found = i;
+                break;
+            }
+        }
+        return found;
+    }
 }

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

@@ -28,7 +28,7 @@
     <string name="alwaysAsk">Dialog immer anzeigen</string>
     <string name="wantToimportMeeting">Möchtest du das folgende Meeting importieren?</string>
     <string name="importError">"Dieser Text entspricht keinem für ZoomHelper bekannten Meetingeinladungs-Muster "</string>
-    <string name="ok">ok</string>
+    <string name="ok">OK</string>
     <string name="meetingAlreadyExists">Meeting unter diesem Namen existiert schon. Bitte umbenennen, ansonsten wird es beim Speichern überschrieben</string>
     <string name="override">überschreiben</string>
     <string name="rename">umbenennen</string>
@@ -39,5 +39,7 @@
     <string name="cantCreateShortcut">Du musst das Meeting zunächst speichern, bevor du eine Verknüpfung dazu erstellen kannst</string>
     <string name="saveMeeting">Meeting speichern</string>
     <string name="cancel">abbrechen</string>
+    <string name="meetingSaved">Meeting gespeichert</string>
+    <string name="meetingWithoutID">Meeting kann nicht ohne ID gespeichert werden!</string>
 
 </resources>