converted views into fragments

.idea/gradle.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>

app/src/main/AndroidManifest.xml

@@ -16,7 +16,7 @@
         android:theme="@style/Theme.Dermy"
         tools:targetApi="31" >
 
-        <activity android:name=".CameraActivity"
+        <activity android:name=".MainActivity"
             android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/xyz/r0r5chach/dermy/MainActivity.java

@@ -0,0 +1,47 @@
+package xyz.r0r5chach.dermy;
+
+import android.content.pm.PackageManager;
+import android.os.Bundle;
+import android.widget.Toast;
+
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+
+import xyz.r0r5chach.dermy.fragments.CameraFragment;
+
+public class MainActivity extends AppCompatActivity {
+
+    public static final int REQUEST_CAMERA_PERMISSION = 200;
+
+    public MainActivity() {
+        super(R.layout.activity_main);
+    }
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        if (savedInstanceState == null) {
+            startCamera();
+        }
+    }
+
+    private void startCamera() {
+        getSupportFragmentManager().beginTransaction()
+                .setReorderingAllowed(true)
+                .add(R.id.fragment_container, CameraFragment.class, null)
+                .commit();
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) { //FIXME: deprecated listener fir request permissions
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        if (requestCode == REQUEST_CAMERA_PERMISSION) {
+            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                startCamera();
+            } else {
+                Toast.makeText(this, "Camera permission is required", Toast.LENGTH_SHORT).show();
+            }
+        }
+    }
+}

app/src/main/java/xyz/r0r5chach/dermy/MapActivity.java

@@ -1,4 +0,0 @@
-package xyz.r0r5chach.dermy;
-
-public class MapActivity {
-}

app/src/main/java/xyz/r0r5chach/dermy/NearbyActivity.java

@@ -1,4 +0,0 @@
-package xyz.r0r5chach.dermy;
-
-public class NearbyActivity {
-}

app/src/main/java/xyz/r0r5chach/dermy/fragments/CameraFragment.java

@@ -1,12 +1,17 @@
-package xyz.r0r5chach.dermy;
+package xyz.r0r5chach.dermy.fragments;
+
+import static xyz.r0r5chach.dermy.MainActivity.REQUEST_CAMERA_PERMISSION;
 
 import android.Manifest;
+import android.content.Context;
 import android.content.pm.PackageManager;
 import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.Toast;
 import androidx.annotation.NonNull;
-import androidx.appcompat.app.AppCompatActivity;
 import androidx.camera.core.CameraSelector;
 import androidx.camera.core.ImageCapture;
 import androidx.camera.core.ImageCaptureException;
@@ -15,38 +20,41 @@ import androidx.camera.lifecycle.ProcessCameraProvider;
 import androidx.camera.view.PreviewView;
 import androidx.core.app.ActivityCompat;
 import androidx.core.content.ContextCompat;
+import androidx.fragment.app.Fragment;
+
 import com.google.common.util.concurrent.ListenableFuture;
 import java.io.File;
+import java.util.Objects;
 import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 
-public class CameraActivity extends AppCompatActivity {
+import xyz.r0r5chach.dermy.R;
-    private static final int REQUEST_CAMERA_PERMISSION = 200;
+
+public class CameraFragment extends Fragment {
     private PreviewView previewView;
     private ImageCapture imageCapture;
     private ExecutorService cameraExecutor;
 
     @Override
-    protected void onCreate(Bundle savedInstanceState) {
+    public View onCreateView(@NonNull LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
+        View view = inflater.inflate(R.layout.fragment_camera, container, false);
-        setContentView(R.layout.activity_main);
+        previewView = view.findViewById(R.id.camera_preview);
 
-        previewView = findViewById(R.id.previewView);
+        if (ContextCompat.checkSelfPermission(requireContext(), Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
-        Button captureButton = findViewById(R.id.captureButton);
-
-        if (ContextCompat.checkSelfPermission(this, Manifest.permission.CAMERA) == PackageManager.PERMISSION_GRANTED) {
             startCamera();
         } else {
-            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA}, REQUEST_CAMERA_PERMISSION);
+            ActivityCompat.requestPermissions(requireActivity(), new String[]{Manifest.permission.CAMERA}, REQUEST_CAMERA_PERMISSION);
         }
 
-        captureButton.setOnClickListener(v -> takePhoto());
+        previewView.setOnClickListener(v -> takePhoto());
 
         cameraExecutor = Executors.newSingleThreadExecutor();
+
+        return view;
     }
 
     private void startCamera() {
-        ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(this);
+        ListenableFuture<ProcessCameraProvider> cameraProviderFuture = ProcessCameraProvider.getInstance(requireContext());
 
         cameraProviderFuture.addListener(() -> {
             try {
@@ -55,7 +63,7 @@ public class CameraActivity extends AppCompatActivity {
             } catch (Exception e) {
                 e.printStackTrace(); //TODO: Replace with better logging
             }
-        }, ContextCompat.getMainExecutor(this));
+        }, ContextCompat.getMainExecutor(requireContext()));
     }
 
     private void bindPreview(@NonNull ProcessCameraProvider cameraProvider) {
@@ -71,9 +79,9 @@ public class CameraActivity extends AppCompatActivity {
     }
 
     private void takePhoto() {
-        File photoFile = new File(getExternalFilesDir(null), System.currentTimeMillis() + ".jpg");
+        File photoFile = new File(requireContext().getExternalFilesDir(null), System.currentTimeMillis() + ".jpg");
         ImageCapture.OutputFileOptions outputFileOptions = new ImageCapture.OutputFileOptions.Builder(photoFile).build();
-        imageCapture.takePicture(outputFileOptions, ContextCompat.getMainExecutor(this), new ImageCapture.OnImageSavedCallback() {
+        imageCapture.takePicture(outputFileOptions, ContextCompat.getMainExecutor(requireContext()), new ImageCapture.OnImageSavedCallback() {
             @Override
             public void onImageSaved(@NonNull ImageCapture.OutputFileResults outputFileResults) {
                 //TODO: Add image path to bundle to pass onto next activity
@@ -83,26 +91,14 @@ public class CameraActivity extends AppCompatActivity {
             @Override
             public void onError(@NonNull ImageCaptureException exception) {
                 exception.printStackTrace(); //TODO: Replace with better logging
-                Toast.makeText(CameraActivity.this, "Error saving photo: " + exception.getMessage(), Toast.LENGTH_SHORT).show();
+                Toast.makeText(requireContext(), "Error saving photo: " + exception.getMessage(), Toast.LENGTH_SHORT).show();
             }
         });
     }
 
     @Override
-    protected void onDestroy() {
+    public void onDestroy() {
         super.onDestroy();
         cameraExecutor.shutdown();
     }
-
-    @Override
-    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
-        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
-        if (requestCode == REQUEST_CAMERA_PERMISSION) {
-            if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
-                startCamera();
-            } else {
-                Toast.makeText(this, "Camera permission is required", Toast.LENGTH_SHORT).show();
-            }
-        }
-    }
 }

app/src/main/java/xyz/r0r5chach/dermy/fragments/MapFragment.java

@@ -0,0 +1,4 @@
+package xyz.r0r5chach.dermy.fragments;
+
+public class MapFragment {
+}

app/src/main/java/xyz/r0r5chach/dermy/fragments/NearbyFragment.java

@@ -0,0 +1,4 @@
+package xyz.r0r5chach.dermy.fragments;
+
+public class NearbyFragment {
+}

app/src/main/java/xyz/r0r5chach/dermy/fragments/PreferencesFragment.java

@@ -1,6 +1,6 @@
-package xyz.r0r5chach.dermy;
+package xyz.r0r5chach.dermy.fragments;
 
-public class PreferencesActivity {
+public class PreferencesFragment {
     //TODO: Disclaimers
     //TODO: Useful Links
     //TODO: Export File

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

@@ -1,18 +1,12 @@
 <?xml version="1.0" encoding="utf-8"?>
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    android:layout_width="match_parent"
-             android:layout_height="match_parent">
-    <androidx.camera.view.PreviewView
-        android:id="@+id/previewView"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
-        <Button
+    <androidx.fragment.app.FragmentContainerView
-            android:id="@+id/captureButton"
+        android:id="@+id/fragment_container"
-            android:layout_width="wrap_content"
+        android:layout_width="match_parent"
-            android:layout_height="wrap_content"
+        android:layout_height="match_parent"
-            android:layout_gravity="center_horizontal|bottom"
+        android:name="xyz.r0r5chach.dermy.fragments.CameraFragment" />
-            android:text="@string/image_capture_button_text" />
-    </androidx.camera.view.PreviewView>
 
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+    <androidx.camera.view.PreviewView
+        android:id="@+id/camera_preview"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" >
+    </androidx.camera.view.PreviewView>
+
+</androidx.constraintlayout.widget.ConstraintLayout>