Add bulb to scene transition, make transitionName unique for each contact

briar-android/src/org/briarproject/android/contact/BaseContactListAdapter.java

@@ -1,6 +1,7 @@
 package org.briarproject.android.contact;
 
 import android.content.Context;
+import android.support.v4.view.ViewCompat;
 import android.support.v7.util.SortedList;
 import android.support.v7.widget.RecyclerView;
 import android.view.View;
@@ -11,6 +12,7 @@ import android.widget.TextView;
 import org.briarproject.R;
 import org.briarproject.api.contact.ContactId;
 import org.briarproject.api.identity.Author;
+import org.briarproject.util.StringUtils;
 
 import java.util.List;
 
@@ -48,6 +50,9 @@ public abstract class BaseContactListAdapter<VH extends BaseContactListAdapter.B
 				if (listener != null) listener.onItemClick(ui.avatar, item);
 			}
 		});
+
+		ViewCompat.setTransitionName(ui.avatar, "avatar" +
+				StringUtils.toHexString(item.getGroupId().getBytes()));
 	}
 
 	@Override

briar-android/src/org/briarproject/android/contact/ContactListAdapter.java

@@ -2,6 +2,7 @@ package org.briarproject.android.contact;
 
 import android.content.Context;
 import android.support.v4.content.ContextCompat;
+import android.support.v4.view.ViewCompat;
 import android.text.format.DateUtils;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -10,6 +11,7 @@ import android.widget.ImageView;
 import android.widget.TextView;
 
 import org.briarproject.R;
+import org.briarproject.util.StringUtils;
 
 public class ContactListAdapter
 		extends BaseContactListAdapter<ContactListAdapter.ContactHolder> {
@@ -62,6 +64,9 @@ public class ContactListAdapter
 		} else {
 			ui.bulb.setImageResource(R.drawable.contact_disconnected);
 		}
+
+		ViewCompat.setTransitionName(ui.bulb,
+				"bulb" + StringUtils.toHexString(item.getGroupId().getBytes()));
 	}
 
 	protected static class ContactHolder

briar-android/src/org/briarproject/android/contact/ContactListFragment.java

@@ -5,7 +5,10 @@ import android.os.Build;
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.design.widget.FloatingActionButton;
+import android.support.v4.app.ActivityCompat;
 import android.support.v4.app.ActivityOptionsCompat;
+import android.support.v4.util.Pair;
+import android.support.v4.view.ViewCompat;
 import android.support.v7.widget.LinearLayoutManager;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -107,16 +110,24 @@ public class ContactListFragment extends BaseFragment implements EventListener {
 								ConversationActivity.class);
 						i.putExtra(GROUP_ID, groupId.getBytes());
 
-						if (Build.VERSION.SDK_INT >= 16) {
-							ActivityOptionsCompat options =
-									ActivityOptionsCompat.
-											makeSceneTransitionAnimation(
-													getActivity(),
-													view, "avatar");
-							getActivity().startActivity(i, options.toBundle());
-						} else {
-							startActivity(i);
-						}
+						ContactListAdapter.ContactHolder holder =
+								(ContactListAdapter.ContactHolder) list
+										.getRecyclerView()
+										.findViewHolderForAdapterPosition(
+												adapter.findItemPosition(item));
+						Pair<View, String> avatar =
+								Pair.create((View) holder.avatar, ViewCompat
+										.getTransitionName(holder.avatar));
+						Pair<View, String> bulb =
+								Pair.create((View) holder.bulb, ViewCompat
+										.getTransitionName(holder.bulb));
+						ActivityOptionsCompat options =
+								ActivityOptionsCompat
+										.makeSceneTransitionAnimation(
+												getActivity(), avatar,
+												bulb);
+						ActivityCompat.startActivity(getActivity(), i,
+								options.toBundle());
 					}
 				};
 

briar-android/src/org/briarproject/android/contact/ConversationActivity.java

@@ -6,6 +6,7 @@ import android.os.Bundle;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.app.ActivityOptionsCompat;
 import android.support.v4.content.ContextCompat;
+import android.support.v4.view.ViewCompat;
 import android.support.v7.app.ActionBar;
 import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.LinearLayoutManager;
@@ -156,6 +157,10 @@ public class ConversationActivity extends BriarActivity
 			ab.setDisplayShowTitleEnabled(false);
 		}
 
+		String hexGroupId = StringUtils.toHexString(b);
+		ViewCompat.setTransitionName(toolbarAvatar, "avatar" + hexGroupId);
+		ViewCompat.setTransitionName(toolbarStatus, "bulb" + hexGroupId);
+
 		adapter = new ConversationAdapter(this, this);
 		list = (BriarRecyclerView) findViewById(R.id.conversationView);
 		list.setLayoutManager(new LinearLayoutManager(this));

briar-android/src/org/briarproject/android/util/BriarRecyclerView.java

@@ -131,4 +131,9 @@ public class BriarRecyclerView extends FrameLayout {
 		if (recyclerView == null) initViews();
 		recyclerView.scrollToPosition(position);
 	}
+
+	public RecyclerView getRecyclerView() {
+		return this.recyclerView;
+	}
+
 }