Zoom images on click

app/src/main/java/app/insti/fragment/BackHandledFragment.java

+package app.insti.fragment;
+
+import android.os.Bundle;
+
+public abstract class BackHandledFragment extends BaseFragment {
+    protected BackHandlerInterface backHandlerInterface;
+    public abstract boolean onBackPressed();
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if(!(getActivity()  instanceof BackHandlerInterface)) {
+            throw new ClassCastException("Hosting activity must implement BackHandlerInterface");
+        } else {
+            backHandlerInterface = (BackHandlerInterface) getActivity();
+        }
+    }
+
+    @Override
+    public void onStart() {
+        super.onStart();
+
+        // Mark this fragment as the selected Fragment.
+        backHandlerInterface.setSelectedFragment(this);
+    }
+
+    public interface BackHandlerInterface {
+        public void setSelectedFragment(BackHandledFragment backHandledFragment);
+    }
+}
\ No newline at end of file

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

@@ -2,6 +2,7 @@
 <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/container_body"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
@@ -128,75 +129,75 @@
 
                 <TextView
                     android:id="@+id/body_events_title"
-                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginLeft="15dp"
                     android:fontFamily="sans-serif-light"
                     android:text="Events"
-                    android:textSize="20sp" />
+                    android:textSize="20sp"
+                    android:visibility="gone" />
 
                 <android.support.v7.widget.RecyclerView
                     android:id="@+id/event_card_recycler_view"
-                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginBottom="10dp"
-                    android:nestedScrollingEnabled="false" />
+                    android:nestedScrollingEnabled="false"
+                    android:visibility="gone" />
 
                 <TextView
                     android:id="@+id/body_orgs_title"
-                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginLeft="15dp"
                     android:fontFamily="sans-serif-light"
                     android:text="Organizations"
-                    android:textSize="20sp" />
+                    android:textSize="20sp"
+                    android:visibility="gone" />
 
                 <android.support.v7.widget.RecyclerView
                     android:id="@+id/org_card_recycler_view"
-                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginBottom="10dp"
-                    android:nestedScrollingEnabled="false" />
+                    android:nestedScrollingEnabled="false"
+                    android:visibility="gone" />
 
                 <TextView
                     android:id="@+id/body_people_title"
-                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginLeft="15dp"
                     android:fontFamily="sans-serif-light"
                     android:text="People"
-                    android:textSize="20sp" />
+                    android:textSize="20sp"
+                    android:visibility="gone" />
 
                 <android.support.v7.widget.RecyclerView
                     android:id="@+id/people_card_recycler_view"
-                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginBottom="10dp"
-                    android:nestedScrollingEnabled="false" />
+                    android:nestedScrollingEnabled="false"
+                    android:visibility="gone" />
 
                 <TextView
                     android:id="@+id/body_parents_title"
-                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginLeft="15dp"
                     android:fontFamily="sans-serif-light"
                     android:text="Part of"
-                    android:textSize="20sp" />
+                    android:textSize="20sp"
+                    android:visibility="gone" />
 
                 <android.support.v7.widget.RecyclerView
                     android:id="@+id/parentorg_card_recycler_view"
-                    android:visibility="gone"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
                     android:layout_marginBottom="10dp"
-                    android:nestedScrollingEnabled="false" />
+                    android:nestedScrollingEnabled="false"
+                    android:visibility="gone" />
 
             </LinearLayout>
         </android.support.v4.widget.NestedScrollView>
@@ -213,4 +214,11 @@
             android:layout_height="wrap_content"
             android:indeterminate="true" />
     </RelativeLayout>
+
+    <app.insti.TouchImageView
+        android:id="@+id/expanded_image_body"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:contentDescription="Zoomed Image"
+        android:visibility="gone" />
 </FrameLayout>
\ No newline at end of file

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

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/container_profile"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
 
@@ -103,4 +104,11 @@
             android:layout_height="wrap_content"
             android:indeterminate="true" />
     </RelativeLayout>
+
+    <app.insti.TouchImageView
+        android:id="@+id/expanded_image_profile"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:visibility="gone"
+        android:contentDescription="Zoomed Image" />
 </RelativeLayout>
\ No newline at end of file