Quick progressbar sample for network operations during group create

res/layout/group_create_activity.xml

@@ -12,6 +12,7 @@
         android:layout_marginBottom="20dp">
 
         <LinearLayout
+            android:id="@+id/group_details_layout"
             android:layout_width="fill_parent"
             android:layout_height="106dp"
             android:orientation="horizontal"
@@ -36,6 +37,34 @@
                 android:layout_gravity="center_vertical" />
             </LinearLayout>
 
+        <LinearLayout
+            android:id="@+id/creating_group_layout"
+            android:visibility="gone"
+            android:layout_width="fill_parent"
+            android:layout_height="106dp"
+            android:orientation="horizontal"
+            android:gravity="center_vertical"
+            android:paddingLeft="18dp"
+            android:paddingRight="18dp"
+            android:paddingTop="18dp">
+
+            <ProgressBar
+                android:id="@+id/creating_progress_bar"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_marginRight="10dp"
+                android:indeterminate="true"
+                style="@android:style/Widget.ProgressBar.Large" />
+
+            <TextView
+                android:id="@+id/creating_group_text"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:padding="10dp"
+                android:textAppearance="?android:attr/textAppearanceMedium"
+                android:layout_gravity="center_vertical" />
+        </LinearLayout>
+
         <RelativeLayout
             android:id="@+id/push_disabled"
             android:layout_width="fill_parent"

src/org/thoughtcrime/securesms/GroupCreateActivity.java

@@ -4,6 +4,7 @@ import android.app.Activity;
 import android.content.Context;
 import android.content.Intent;
 import android.graphics.Bitmap;
+import android.os.AsyncTask;
 import android.os.Bundle;
 import android.text.Editable;
 import android.text.TextWatcher;
@@ -12,6 +13,7 @@ import android.view.View;
 import android.widget.EditText;
 import android.widget.ImageView;
 import android.widget.ListView;
+import android.widget.TextView;
 
 import com.actionbarsherlock.view.Menu;
 import com.actionbarsherlock.view.MenuInflater;
@@ -204,8 +206,35 @@ public class GroupCreateActivity extends PassphraseRequiredSherlockFragmentActiv
     super.onOptionsItemSelected(item);
     switch (item.getItemId()) {
       case android.R.id.home:
+        finish();
+        return true;
       case R.id.menu_create_group:
-        finish(); // TODO not this
+        findViewById(R.id.group_details_layout).setVisibility(View.GONE);
+        findViewById(R.id.creating_group_layout).setVisibility(View.VISIBLE);
+        ((TextView)findViewById(R.id.creating_group_text)).setText("Creating " + groupName.getText().toString() + "...");
+        new AsyncTask<Void,Void,Void>() {
+
+          @Override
+          protected Void doInBackground(Void... voids) {
+            try {
+              Thread.sleep(5000); // todo network things
+            } catch (InterruptedException e) {
+              Thread.currentThread().interrupt();
+            }
+            return null;
+          }
+
+          @Override
+          protected void onPostExecute(Void aVoid) {
+            super.onPostExecute(aVoid);
+            finish();
+          }
+
+          @Override
+          protected void onProgressUpdate(Void... values) {
+            super.onProgressUpdate(values);
+          }
+        }.execute();
         return true;
     }