fix crashes on Android 2.3

12 files changed, 170 insertions, 108 deletions

diff --git a/OpenPGP-Keychain/AndroidManifest.xml b/OpenPGP-Keychain/AndroidManifest.xml
index da655ba02..c2affd12c 100644
--- a/OpenPGP-Keychain/AndroidManifest.xml
+++ b/OpenPGP-Keychain/AndroidManifest.xml
@@ -108,6 +108,15 @@
                 android:value=".ui.KeyListPublicActivity" />
         </activity>
         <activity
+            android:name=".ui.ViewKeyActivityJB"
+            android:configChanges="orientation|screenSize|keyboardHidden|keyboard"
+            android:label="@string/title_key_details"
+            android:parentActivityName=".ui.KeyListPublicActivity" >
+            <meta-data
+                android:name="android.support.PARENT_ACTIVITY"
+                android:value=".ui.KeyListPublicActivity" />
+        </activity>
+        <activity
             android:name=".ui.SelectPublicKeyActivity"
             android:configChanges="orientation|screenSize|keyboardHidden|keyboard"
             android:label="@string/title_select_recipients"
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyListPublicFragment.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyListPublicFragment.java
index 3eb9f7f35..6ae2b9bf9 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyListPublicFragment.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/KeyListPublicFragment.java
@@ -260,9 +260,14 @@ public class KeyListPublicFragment extends Fragment implements AdapterView.OnIte
      */
     @Override
     public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
-        Intent detailsIntent = new Intent(getActivity(), ViewKeyActivity.class);
-        detailsIntent.setData(KeychainContract.KeyRings.buildPublicKeyRingsUri(Long.toString(id)));
-        startActivity(detailsIntent);
+        Intent viewIntent = null;
+        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN) {
+            viewIntent = new Intent(getActivity(), ViewKeyActivity.class);
+        } else {
+            viewIntent = new Intent(getActivity(), ViewKeyActivityJB.class);
+        }
+        viewIntent.setData(KeychainContract.KeyRings.buildPublicKeyRingsUri(Long.toString(id)));
+        startActivity(viewIntent);
     }
 
     public void encrypt(long[] keyRingRowIds) {
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java
index d0696464c..ea86bbfca 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java
@@ -40,17 +40,9 @@ import org.sufficientlysecure.keychain.ui.dialog.ShareNfcDialogFragment;
 import org.sufficientlysecure.keychain.ui.dialog.ShareQrCodeDialogFragment;
 import org.sufficientlysecure.keychain.util.Log;
 
-import android.annotation.SuppressLint;
 import android.content.Intent;
 import android.database.Cursor;
 import android.net.Uri;
-import android.nfc.NdefMessage;
-import android.nfc.NdefRecord;
-import android.nfc.NfcAdapter;
-import android.nfc.NfcAdapter.CreateNdefMessageCallback;
-import android.nfc.NfcAdapter.OnNdefPushCompleteCallback;
-import android.nfc.NfcEvent;
-import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Message;
@@ -69,13 +61,12 @@ import com.actionbarsherlock.view.Menu;
 import com.actionbarsherlock.view.MenuItem;
 import com.beardedhen.androidbootstrap.BootstrapButton;
 
-@SuppressLint("NewApi")
-public class ViewKeyActivity extends SherlockFragmentActivity implements CreateNdefMessageCallback,
-        OnNdefPushCompleteCallback, LoaderManager.LoaderCallbacks<Cursor> {
+public class ViewKeyActivity extends SherlockFragmentActivity implements
+        LoaderManager.LoaderCallbacks<Cursor> {
 
     ExportHelper mExportHelper;
 
-    private Uri mDataUri;
+    protected Uri mDataUri;
 
     private TextView mName;
     private TextView mEmail;
@@ -90,11 +81,6 @@ public class ViewKeyActivity extends SherlockFragmentActivity implements CreateN
     private ListView mUserIds;
     private ListView mKeys;
 
-    // NFC
-    private NfcAdapter mNfcAdapter;
-    private byte[] mSharedKeyringBytes;
-    private static final int NFC_SENT = 1;
-
     private static final int LOADER_ID_KEYRING = 0;
     private static final int LOADER_ID_USER_IDS = 1;
     private static final int LOADER_ID_KEYS = 2;
@@ -134,7 +120,6 @@ public class ViewKeyActivity extends SherlockFragmentActivity implements CreateN
         } else {
             Log.d(Constants.TAG, "uri: " + mDataUri);
             loadData(mDataUri);
-            initNfc(mDataUri);
         }
     }
 
@@ -496,69 +481,4 @@ public class ViewKeyActivity extends SherlockFragmentActivity implements CreateN
         dialog.show(getSupportFragmentManager(), "shareNfcDialog");
     }
 
-    /**
-     * NFC: Initialize NFC sharing if OS and device supports it
-     */
-    private void initNfc(Uri dataUri) {
-        // check if NFC Beam is supported (>= Android 4.1)
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
-            // Check for available NFC Adapter
-            mNfcAdapter = NfcAdapter.getDefaultAdapter(this);
-            if (mNfcAdapter != null) {
-                // init nfc
-
-                // get public keyring as byte array
-                long masterKeyId = ProviderHelper.getMasterKeyId(this, dataUri);
-                mSharedKeyringBytes = ProviderHelper.getKeyRingsAsByteArray(this, dataUri,
-                        new long[] { masterKeyId });
-
-                // Register callback to set NDEF message
-                mNfcAdapter.setNdefPushMessageCallback(this, this);
-                // Register callback to listen for message-sent success
-                mNfcAdapter.setOnNdefPushCompleteCallback(this, this);
-            }
-        }
-    }
-
-    /**
-     * NFC: Implementation for the CreateNdefMessageCallback interface
-     */
-    @Override
-    public NdefMessage createNdefMessage(NfcEvent event) {
-        /**
-         * When a device receives a push with an AAR in it, the application specified in the AAR is
-         * guaranteed to run. The AAR overrides the tag dispatch system. You can add it back in to
-         * guarantee that this activity starts when receiving a beamed message. For now, this code
-         * uses the tag dispatch system.
-         */
-        NdefMessage msg = new NdefMessage(NdefRecord.createMime(Constants.NFC_MIME,
-                mSharedKeyringBytes), NdefRecord.createApplicationRecord(Constants.PACKAGE_NAME));
-        return msg;
-    }
-
-    /**
-     * NFC: Implementation for the OnNdefPushCompleteCallback interface
-     */
-    @Override
-    public void onNdefPushComplete(NfcEvent arg0) {
-        // A handler is needed to send messages to the activity when this
-        // callback occurs, because it happens from a binder thread
-        mNfcHandler.obtainMessage(NFC_SENT).sendToTarget();
-    }
-
-    /**
-     * NFC: This handler receives a message from onNdefPushComplete
-     */
-    private final Handler mNfcHandler = new Handler() {
-        @Override
-        public void handleMessage(Message msg) {
-            switch (msg.what) {
-            case NFC_SENT:
-                Toast.makeText(getApplicationContext(), R.string.nfc_successfull, Toast.LENGTH_LONG)
-                        .show();
-                break;
-            }
-        }
-    };
-
 }
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/ViewKeyActivityJB.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/ViewKeyActivityJB.java
new file mode 100644
index 000000000..a2e3e4339
--- /dev/null
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/ViewKeyActivityJB.java
@@ -0,0 +1,122 @@
+/*
+ * Copyright (C) 2013-2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ * Copyright (C) 2013 Bahtiar 'kalkin' Gadimov
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.sufficientlysecure.keychain.ui;
+
+import org.sufficientlysecure.keychain.Constants;
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.provider.ProviderHelper;
+
+import android.annotation.TargetApi;
+import android.database.Cursor;
+import android.net.Uri;
+import android.nfc.NdefMessage;
+import android.nfc.NdefRecord;
+import android.nfc.NfcAdapter;
+import android.nfc.NfcAdapter.CreateNdefMessageCallback;
+import android.nfc.NfcAdapter.OnNdefPushCompleteCallback;
+import android.nfc.NfcEvent;
+import android.os.Build;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.Message;
+import android.support.v4.app.LoaderManager;
+import android.widget.Toast;
+
+@TargetApi(Build.VERSION_CODES.JELLY_BEAN)
+public class ViewKeyActivityJB extends ViewKeyActivity implements CreateNdefMessageCallback,
+        OnNdefPushCompleteCallback, LoaderManager.LoaderCallbacks<Cursor> {
+
+    // NFC
+    private NfcAdapter mNfcAdapter;
+    private byte[] mSharedKeyringBytes;
+    private static final int NFC_SENT = 1;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        initNfc(mDataUri);
+    }
+
+    /**
+     * NFC: Initialize NFC sharing if OS and device supports it
+     */
+    private void initNfc(Uri dataUri) {
+        // check if NFC Beam is supported (>= Android 4.1)
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
+            // Check for available NFC Adapter
+            mNfcAdapter = NfcAdapter.getDefaultAdapter(this);
+            if (mNfcAdapter != null) {
+                // init nfc
+
+                // get public keyring as byte array
+                long masterKeyId = ProviderHelper.getMasterKeyId(this, dataUri);
+                mSharedKeyringBytes = ProviderHelper.getKeyRingsAsByteArray(this, dataUri,
+                        new long[] { masterKeyId });
+
+                // Register callback to set NDEF message
+                mNfcAdapter.setNdefPushMessageCallback(this, this);
+                // Register callback to listen for message-sent success
+                mNfcAdapter.setOnNdefPushCompleteCallback(this, this);
+            }
+        }
+    }
+
+    /**
+     * NFC: Implementation for the CreateNdefMessageCallback interface
+     */
+    @Override
+    public NdefMessage createNdefMessage(NfcEvent event) {
+        /**
+         * When a device receives a push with an AAR in it, the application specified in the AAR is
+         * guaranteed to run. The AAR overrides the tag dispatch system. You can add it back in to
+         * guarantee that this activity starts when receiving a beamed message. For now, this code
+         * uses the tag dispatch system.
+         */
+        NdefMessage msg = new NdefMessage(NdefRecord.createMime(Constants.NFC_MIME,
+                mSharedKeyringBytes), NdefRecord.createApplicationRecord(Constants.PACKAGE_NAME));
+        return msg;
+    }
+
+    /**
+     * NFC: Implementation for the OnNdefPushCompleteCallback interface
+     */
+    @Override
+    public void onNdefPushComplete(NfcEvent arg0) {
+        // A handler is needed to send messages to the activity when this
+        // callback occurs, because it happens from a binder thread
+        mNfcHandler.obtainMessage(NFC_SENT).sendToTarget();
+    }
+
+    /**
+     * NFC: This handler receives a message from onNdefPushComplete
+     */
+    private final Handler mNfcHandler = new Handler() {
+        @Override
+        public void handleMessage(Message msg) {
+            switch (msg.what) {
+            case NFC_SENT:
+                Toast.makeText(getApplicationContext(), R.string.nfc_successfull, Toast.LENGTH_LONG)
+                        .show();
+                break;
+            }
+        }
+    };
+
+}
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/DeleteFileDialogFragment.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/DeleteFileDialogFragment.java
index 402066ad3..89b9acf61 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/DeleteFileDialogFragment.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/DeleteFileDialogFragment.java
@@ -17,9 +17,9 @@
 
 package org.sufficientlysecure.keychain.ui.dialog;
 
+import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.service.KeychainIntentService;
 import org.sufficientlysecure.keychain.service.KeychainIntentServiceHandler;
-import org.sufficientlysecure.keychain.R;
 
 import android.app.AlertDialog;
 import android.app.Dialog;
@@ -29,11 +29,12 @@ import android.content.Intent;
 import android.os.Bundle;
 import android.os.Message;
 import android.os.Messenger;
-import android.support.v4.app.DialogFragment;
 import android.support.v4.app.FragmentActivity;
 import android.widget.Toast;
 
-public class DeleteFileDialogFragment extends DialogFragment {
+import com.actionbarsherlock.app.SherlockDialogFragment;
+
+public class DeleteFileDialogFragment extends SherlockDialogFragment {
     private static final String ARG_DELETE_FILE = "delete_file";
 
     /**
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/DeleteKeyDialogFragment.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/DeleteKeyDialogFragment.java
index 101167777..20c3ec3f3 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/DeleteKeyDialogFragment.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/DeleteKeyDialogFragment.java
@@ -21,10 +21,10 @@ import org.spongycastle.openpgp.PGPPublicKeyRing;
 import org.spongycastle.openpgp.PGPSecretKeyRing;
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.Id;
+import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
 import org.sufficientlysecure.keychain.provider.ProviderHelper;
 import org.sufficientlysecure.keychain.util.Log;
-import org.sufficientlysecure.keychain.R;
 
 import android.app.AlertDialog;
 import android.app.Dialog;
@@ -33,10 +33,11 @@ import android.os.Bundle;
 import android.os.Message;
 import android.os.Messenger;
 import android.os.RemoteException;
-import android.support.v4.app.DialogFragment;
 import android.support.v4.app.FragmentActivity;
 
-public class DeleteKeyDialogFragment extends DialogFragment {
+import com.actionbarsherlock.app.SherlockDialogFragment;
+
+public class DeleteKeyDialogFragment extends SherlockDialogFragment {
     private static final String ARG_MESSENGER = "messenger";
     private static final String ARG_DELETE_KEY_RING_ROW_IDS = "delete_file";
     private static final String ARG_KEY_TYPE = "key_type";
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/FileDialogFragment.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/FileDialogFragment.java
index 96a5fcbd9..a68f9bdbe 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/FileDialogFragment.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/FileDialogFragment.java
@@ -32,15 +32,15 @@ import android.os.Bundle;
 import android.os.Message;
 import android.os.Messenger;
 import android.os.RemoteException;
-import android.support.v4.app.DialogFragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.widget.CheckBox;
 import android.widget.EditText;
 
+import com.actionbarsherlock.app.SherlockDialogFragment;
 import com.beardedhen.androidbootstrap.BootstrapButton;
 
-public class FileDialogFragment extends DialogFragment {
+public class FileDialogFragment extends SherlockDialogFragment {
     private static final String ARG_MESSENGER = "messenger";
     private static final String ARG_TITLE = "title";
     private static final String ARG_MESSAGE = "message";
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/LookupUnknownKeyDialogFragment.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/LookupUnknownKeyDialogFragment.java
index b8f2a6327..d018f4b8e 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/LookupUnknownKeyDialogFragment.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/LookupUnknownKeyDialogFragment.java
@@ -19,10 +19,10 @@ package org.sufficientlysecure.keychain.ui.dialog;
 
 import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.Id;
+import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
 import org.sufficientlysecure.keychain.ui.KeyServerQueryActivity;
 import org.sufficientlysecure.keychain.util.Log;
-import org.sufficientlysecure.keychain.R;
 
 import android.app.Activity;
 import android.app.AlertDialog;
@@ -34,10 +34,11 @@ import android.os.Bundle;
 import android.os.Message;
 import android.os.Messenger;
 import android.os.RemoteException;
-import android.support.v4.app.DialogFragment;
+
+import com.actionbarsherlock.app.SherlockDialogFragment;
 
 
-public class LookupUnknownKeyDialogFragment extends DialogFragment {
+public class LookupUnknownKeyDialogFragment extends SherlockDialogFragment {
     private static final String ARG_MESSENGER = "messenger";
     private static final String ARG_UNKNOWN_KEY_ID = "unknown_key_id";
 
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/PassphraseDialogFragment.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/PassphraseDialogFragment.java
index e88271240..898457324 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/PassphraseDialogFragment.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/PassphraseDialogFragment.java
@@ -41,7 +41,6 @@ import android.os.Bundle;
 import android.os.Message;
 import android.os.Messenger;
 import android.os.RemoteException;
-import android.support.v4.app.DialogFragment;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -53,7 +52,9 @@ import android.widget.TextView;
 import android.widget.TextView.OnEditorActionListener;
 import android.widget.Toast;
 
-public class PassphraseDialogFragment extends DialogFragment implements OnEditorActionListener {
+import com.actionbarsherlock.app.SherlockDialogFragment;
+
+public class PassphraseDialogFragment extends SherlockDialogFragment implements OnEditorActionListener {
     private static final String ARG_MESSENGER = "messenger";
     private static final String ARG_SECRET_KEY_ID = "secret_key_id";
 
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/ProgressDialogFragment.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/ProgressDialogFragment.java
index 9c5aedaed..aa6cdfd68 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/ProgressDialogFragment.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/ProgressDialogFragment.java
@@ -23,10 +23,11 @@ import android.app.ProgressDialog;
 import android.content.DialogInterface;
 import android.content.DialogInterface.OnKeyListener;
 import android.os.Bundle;
-import android.support.v4.app.DialogFragment;
 import android.view.KeyEvent;
 
-public class ProgressDialogFragment extends DialogFragment {
+import com.actionbarsherlock.app.SherlockDialogFragment;
+
+public class ProgressDialogFragment extends SherlockDialogFragment {
     private static final String ARG_MESSAGE_ID = "message_id";
     private static final String ARG_STYLE = "style";
 
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/SetPassphraseDialogFragment.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/SetPassphraseDialogFragment.java
index d5c366bed..aac066d61 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/SetPassphraseDialogFragment.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/SetPassphraseDialogFragment.java
@@ -18,8 +18,8 @@
 package org.sufficientlysecure.keychain.ui.dialog;
 
 import org.sufficientlysecure.keychain.Constants;
-import org.sufficientlysecure.keychain.util.Log;
 import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.util.Log;
 
 import android.app.Activity;
 import android.app.AlertDialog;
@@ -29,8 +29,6 @@ import android.os.Bundle;
 import android.os.Message;
 import android.os.Messenger;
 import android.os.RemoteException;
-import android.support.v4.app.DialogFragment;
-
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.View;
@@ -39,10 +37,12 @@ import android.view.inputmethod.EditorInfo;
 import android.widget.Button;
 import android.widget.EditText;
 import android.widget.TextView;
-import android.widget.Toast;
 import android.widget.TextView.OnEditorActionListener;
+import android.widget.Toast;
+
+import com.actionbarsherlock.app.SherlockDialogFragment;
 
-public class SetPassphraseDialogFragment extends DialogFragment implements OnEditorActionListener {
+public class SetPassphraseDialogFragment extends SherlockDialogFragment implements OnEditorActionListener {
     private static final String ARG_MESSENGER = "messenger";
     private static final String ARG_TITLE = "title";
 
diff --git a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/ShareNfcDialogFragment.java b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/ShareNfcDialogFragment.java
index 03e09cdcb..bae398751 100644
--- a/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/ShareNfcDialogFragment.java
+++ b/OpenPGP-Keychain/src/org/sufficientlysecure/keychain/ui/dialog/ShareNfcDialogFragment.java
@@ -29,11 +29,12 @@ import android.nfc.NfcAdapter;
 import android.os.Build;
 import android.os.Bundle;
 import android.provider.Settings;
-import android.support.v4.app.DialogFragment;
 import android.support.v4.app.FragmentActivity;
 
+import com.actionbarsherlock.app.SherlockDialogFragment;
+
 @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
-public class ShareNfcDialogFragment extends DialogFragment {
+public class ShareNfcDialogFragment extends SherlockDialogFragment {
 
     /**
      * Creates new instance of this fragment