add prompt

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

@@ -3,13 +3,18 @@ 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;
@@ -31,26 +36,53 @@ public class BackupController {
         Encrypter encrypter = new Encrypter();
         SharedPreferences mPrefs = activity.getPreferences(Context.MODE_PRIVATE);
         String value = mPrefs.getString("Meetings", "");
-        File destination = new File(activity.getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath(), "backup.tmp");
+        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, destination.getAbsolutePath());
+            writeStringToFile(value, tempDestination.getAbsolutePath());
         } catch (IOException e) {
             e.printStackTrace();
         }
-        //TODO: Eingabefeld für Passwort
-        try {
-            encrypter.encrypt(destination.getAbsolutePath(), "test");
-        } catch (BadPaddingException | IllegalBlockSizeException | IOException | NoSuchAlgorithmException | InvalidKeySpecException | InvalidAlgorithmParameterException | InvalidKeyException | NoSuchPaddingException e) {
-            e.printStackTrace();
-        }
-        //noinspection ResultOfMethodCallIgnored
-        destination.delete();
-        destination = new File(activity.getExternalFilesDir(Environment.DIRECTORY_DOWNLOADS).getAbsolutePath(), "backup.zoomhelper");
 
-        shareFile(destination, activity);
+        // 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();

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/values/strings.xml

@@ -45,5 +45,6 @@
     <string name="restore">Daten wiederherstellen</string>
     <string name="settings">Einstellungen</string>
     <string name="info">Info</string>
+    <string name="password_input">"Passworteingabe: "</string>
 
 </resources>