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diff --git a/example/src/main/java/org/openintents/openpgp/example/BaseActivity.java b/example/src/main/java/org/openintents/openpgp/example/BaseActivity.java
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+++ b/example/src/main/java/org/openintents/openpgp/example/BaseActivity.java
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.openintents.openpgp.example;
+
+import android.content.Intent;
+import android.os.Bundle;
+import android.preference.Preference;
+import android.preference.Preference.OnPreferenceClickListener;
+import android.preference.PreferenceActivity;
+
+import org.openintents.openpgp.util.OpenPgpAppPreference;
+import org.openintents.openpgp.util.OpenPgpKeyPreference;
+
+public class BaseActivity extends PreferenceActivity {
+    OpenPgpKeyPreference mKey;
+    OpenPgpAppPreference mProvider;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        // load preferences from xml
+        addPreferencesFromResource(R.xml.base_preference);
+
+        // find preferences
+        Preference openKeychainIntents = findPreference("intent_demo");
+        Preference openPgpApi = findPreference("openpgp_provider_demo");
+        mProvider = (OpenPgpAppPreference) findPreference("openpgp_provider_list");
+        mKey = (OpenPgpKeyPreference) findPreference("openpgp_key");
+
+        openPgpApi.setOnPreferenceClickListener(new OnPreferenceClickListener() {
+            @Override
+            public boolean onPreferenceClick(Preference preference) {
+                startActivity(new Intent(BaseActivity.this, OpenPgpApiActivity.class));
+
+                return false;
+            }
+        });
+
+        mKey.setOpenPgpProvider(mProvider.getValue());
+        mProvider.setOnPreferenceChangeListener(new Preference.OnPreferenceChangeListener() {
+            @Override
+            public boolean onPreferenceChange(Preference preference, Object newValue) {
+                mKey.setOpenPgpProvider((String) newValue);
+                return true;
+            }
+        });
+        mKey.setDefaultUserId("Alice <alice@example.com>");
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        if (mKey.handleOnActivityResult(requestCode, resultCode, data)) {
+            // handled by OpenPgpKeyPreference
+            return;
+        }
+        // other request codes...
+    }
+}