Bitmap shared from GenerateActivity to SendActivity

app/src/main/AndroidManifest.xml

@@ -16,7 +16,14 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Qrcode">
         <activity android:name=".SendActivity"></activity>
-        <activity android:name=".MenuScanActivity" />
+        <activity android:name=".MenuScanActivity">
+            <!-- This activity is in charge of receiving images -->
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <data android:mimeType="image/*" />
+            </intent-filter>
+        </activity>
         <activity android:name=".ScanActivity" />
         <activity android:name=".LauncherActivity">
             <intent-filter>

app/src/main/java/com/example/qrcode/GenerateActivity.java

@@ -15,12 +15,15 @@ import com.google.zxing.MultiFormatWriter;
 import com.google.zxing.common.BitMatrix;
 import com.journeyapps.barcodescanner.BarcodeEncoder;
 
+import java.io.ByteArrayOutputStream;
+
 public class GenerateActivity extends AppCompatActivity {
 
 
      private    EditText editText, editKey;
      private    Button generate,goback,save,send;
      private    ImageView imageView;
+     private    Bitmap bitmap;
      private    Intent request;
         @Override
         protected void onCreate(Bundle savedInstanceState) {
@@ -44,7 +47,7 @@ public class GenerateActivity extends AppCompatActivity {
                         String msg = EncryptOrDecrypt.encrypt(editText.getText().toString(), editKey.getText().toString());
                         BitMatrix bitMatrix = multiFormatWriter.encode(msg, BarcodeFormat.QR_CODE,500,500);
                         BarcodeEncoder barcodeEncoder = new BarcodeEncoder();
-                        Bitmap bitmap = barcodeEncoder.createBitmap(bitMatrix);
+                        bitmap = barcodeEncoder.createBitmap(bitMatrix);
                         imageView.setImageBitmap(bitmap);
                     }catch (Exception e){
                         e.printStackTrace();
@@ -80,6 +83,10 @@ public class GenerateActivity extends AppCompatActivity {
                 public void onClick(View v) {
 
                     request = new Intent(GenerateActivity.this, SendActivity.class);
+                    ByteArrayOutputStream stream = new ByteArrayOutputStream();
+                    bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
+                    request.putExtra("Image", stream.toByteArray());
+
 
                     startActivityForResult(request,14);
                 }

app/src/main/java/com/example/qrcode/SendActivity.java

@@ -5,6 +5,8 @@ import androidx.appcompat.app.AppCompatActivity;
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
 import android.content.Intent;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
@@ -12,6 +14,7 @@ import android.view.View;
 import android.widget.AdapterView;
 import android.widget.ArrayAdapter;
 import android.widget.Button;
+import android.widget.ImageView;
 import android.widget.ListView;
 import android.widget.Toast;
 
@@ -34,7 +37,7 @@ public class SendActivity extends AppCompatActivity {
     SendActivity myApp = this;
     ListView listView;
     String test ="yolo";
-    byte[] msg;
+    byte[] imageData;
 
     private Handler handler=new Handler(new Handler.Callback() {
         @Override
@@ -72,6 +75,12 @@ public class SendActivity extends AppCompatActivity {
         appButton = (Button) findViewById(R.id.appButton);
         bluetoothAdapter=BluetoothAdapter.getDefaultAdapter();
 
+        ImageView view = (ImageView) findViewById(R.id.imageView3);
+
+        byte[] imageData = getIntent().getByteArrayExtra("Image");
+        Bitmap bitmap = BitmapFactory.decodeByteArray(imageData, 0, imageData.length);;
+        view.setImageBitmap(bitmap);
+
         if (!bluetoothAdapter.isEnabled()) {
             // Demande à activer l'interface bluetooth
             Intent enableBtIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
@@ -121,7 +130,13 @@ public class SendActivity extends AppCompatActivity {
                 clientClass.start();
                 //test
                 clientClass.sendReceive.write(test.getBytes());
-                //clientClass.sendReceive.write(msg);
+                //clientClass.sendReceive.write(imageData);
+            }
+        });
+
+        appButton.setOnClickListener(new View.OnClickListener() {
+            public void onClick(View v) {
+
             }
         });
 

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

@@ -44,4 +44,13 @@
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/bluetoothButton" />
+
+    <ImageView
+        android:id="@+id/imageView3"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:srcCompat="@drawable/ic_launcher_foreground"
+        tools:layout_editor_absoluteY="257dp" />
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file