added a few things

Generator/app/src/main/AndroidManifest.xml

@@ -8,8 +8,9 @@
         android:fullBackupContent="@xml/backup_rules"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
-        android:roundIcon="@mipmap/ic_launcher_round"
+        android:roundIcon="@drawable/ic_launcher_background"
         android:supportsRtl="true"
+        android:largeHeap="true"
         android:theme="@style/Theme.Generator">
         <activity
             android:name=".makeActivity"

Generator/app/src/main/java/com/example/generator/Data.java

@@ -0,0 +1,23 @@
+package com.example.generator;
+
+public class Data {
+    private String base64;
+    private int numPos;
+
+
+    public String getBase64() {
+        return base64;
+    }
+
+    public void setBase64(String base64) {
+        this.base64 = base64;
+    }
+    public void setNumPos(int numPos) {
+        this.numPos = Math.max(0, numPos);
+    }
+    public String getNumPos() {
+        return String.valueOf(numPos);
+    }
+
+
+}

Generator/app/src/main/java/com/example/generator/makeActivity.java

@@ -23,13 +23,14 @@ import androidx.core.view.WindowInsetsCompat;
 
 import java.io.ByteArrayOutputStream;
 import java.io.InputStream;
+import java.util.Objects;
 
 public class makeActivity extends AppCompatActivity {
-
+    public static Data Data = new Data();
     private ImageView imageView;
     private int numPos = -1;
     private EditText numPosEdit;
-    private String Base64img;
+    private String Base64img = "";
     private final ActivityResultLauncher<PickVisualMediaRequest> pickMedia =
             registerForActivityResult(new ActivityResultContracts.PickVisualMedia(), uri -> {
                 if (uri != null) {
@@ -54,11 +55,13 @@ public class makeActivity extends AppCompatActivity {
             return insets;
         });
 
+
+
         imageView = findViewById(R.id.imageView);
         Button nextButton = (Button) findViewById(R.id.button_next);
         Button backButton = (Button) findViewById(R.id.button_back);
         Button chooseButton = (Button) findViewById(R.id.button_image);
-        EditText numPosEdit = findViewById(R.id.numPos);
+        numPosEdit = findViewById(R.id.numPos);
 
         backButton.setOnClickListener((v) -> {
             Intent intent = new Intent(this, MainActivity.class);
@@ -66,12 +69,18 @@ public class makeActivity extends AppCompatActivity {
         });
 
         nextButton.setOnClickListener((v) -> {
-            numPos = Integer.parseInt(numPosEdit.getText().toString().trim());
-            if (numPos == -1) {
+            if (numPosEdit.getText().toString().trim().isEmpty()) {
                 Toast.makeText(this, "choose a number", Toast.LENGTH_SHORT).show();
-            } else if (Base64img == ""); {
+            } else
+                numPos = Integer.parseInt(numPosEdit.getText().toString().trim());
+                if (Objects.equals(Base64img, "")) {
                 Toast.makeText(this, "choose a image", Toast.LENGTH_SHORT).show();
-            }
+                Log.d("test", Base64img);
+            } else {
+                Data.setNumPos(numPos);
+                Data.setBase64(Base64img);
+                Log.d("Pos", Data.getNumPos());
+                }
 
         });
 
@@ -82,7 +91,6 @@ public class makeActivity extends AppCompatActivity {
         });
 
 
-
     }
     private String convertUriToBase64(Uri uri) {
         try {