Introduce Fragments

app/src/main/java/de/trac/spherical/SphereFragment.java

@@ -0,0 +1,52 @@
+package de.trac.spherical;
+
+import android.graphics.Bitmap;
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.util.Log;
+import android.view.LayoutInflater;
+import android.view.MotionEvent;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.FrameLayout;
+
+import de.trac.spherical.rendering.PhotoSphereSurfaceView;
+
+/**
+ * Created by vanitas on 17.09.17.
+ */
+public class SphereFragment extends Fragment implements View.OnTouchListener {
+
+    private PhotoSphereSurfaceView surfaceView;
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_sphere, parent, false);
+    }
+
+    @Override
+    public void onViewCreated(View view, Bundle savedInstanceState) {
+        FrameLayout fragmentRoot = (FrameLayout) view.findViewById(R.id.container_sphere);
+        surfaceView = new PhotoSphereSurfaceView(getContext());
+
+        // Initialize renderer and setup surface view.
+        fragmentRoot.addView(surfaceView);
+
+        surfaceView.setOnTouchListener(this);
+        surfaceView.setBitmap(getMainActivity().getBitmap());
+    }
+
+    public void displayPhotoSphere(Bitmap bitmap) {
+        //surfaceView.setBitmap(bitmap);
+        Log.d(MainActivity.TAG, "Display Photo Sphere!");
+    }
+
+    @Override
+    public boolean onTouch(View v, MotionEvent event) {
+        return getMainActivity().getGestureDetector().onTouchEvent(event);
+    }
+
+    private MainActivity getMainActivity() {
+        return (MainActivity) getActivity();
+    }
+}