do a TON of UI work

11 files changed, 215 insertions, 95 deletions

diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java
index 6b1d87941..51dec767c 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyActivity.java
@@ -281,7 +281,7 @@ public class ViewKeyActivity extends BaseActivity implements
         // Add the fragment to the 'fragment_container' FrameLayout
         // NOTE: We use commitAllowingStateLoss() to prevent weird crashes!
         getSupportFragmentManager().beginTransaction()
-                .replace(R.id.view_key_fragment, frag)
+                .replace(R.id.view_key_fragment, frag, "main")
                 .commitAllowingStateLoss();
         // do it immediately!
         getSupportFragmentManager().executePendingTransactions();
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyFragment.java
index c6df016ff..20386b372 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyFragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/ViewKeyFragment.java
@@ -20,15 +20,22 @@ package org.sufficientlysecure.keychain.ui;
 
 import android.database.Cursor;
 import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
+import android.support.v4.app.Fragment;
 import android.support.v4.app.LoaderManager;
 import android.support.v4.content.CursorLoader;
 import android.support.v4.content.Loader;
 import android.support.v7.widget.CardView;
+import android.transition.Explode;
+import android.transition.Fade;
+import android.transition.Transition;
+import android.transition.TransitionInflater;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.AdapterView;
+import android.widget.AdapterView.OnItemClickListener;
 import android.widget.ListView;
 
 import org.sufficientlysecure.keychain.Constants;
@@ -91,11 +98,34 @@ public class ViewKeyFragment extends LoaderFragment implements
                 showUserIdInfo(position);
             }
         });
-        mLinkedIdsCard.setVisibility(View.GONE);
+        mLinkedIds.setOnItemClickListener(new OnItemClickListener() {
+            @Override
+            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
+                showLinkedId(position);
+            }
+        });
 
         return root;
     }
 
+    private void showLinkedId(final int position) {
+        Fragment frag = mLinkedIdsAdapter.getLinkedIdFragment(position);
+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            Transition trans = TransitionInflater.from(getActivity())
+                            .inflateTransition(R.transition.linked_id_card_trans);
+            // setSharedElementReturnTransition(trans);
+            setExitTransition(new Fade());
+            frag.setSharedElementEnterTransition(trans);
+        }
+
+        getFragmentManager().beginTransaction()
+                .replace(R.id.view_key_fragment, frag)
+                .addSharedElement(mLinkedIdsCard, "card_linked_ids")
+                .addToBackStack(null)
+                .commit();
+    }
+
     private void showUserIdInfo(final int position) {
         if (!mIsSecret) {
             final boolean isRevoked = mUserIdsAdapter.getIsRevoked(position);
@@ -140,10 +170,8 @@ public class ViewKeyFragment extends LoaderFragment implements
 
         Log.i(Constants.TAG, "mDataUri: " + mDataUri);
 
-        // Prepare the loaders. Either re-connect with an existing ones,
-        // or start new ones.
-        // TODO Is this loader the same as the one in the activity?
         getLoaderManager().initLoader(LOADER_ID_UNIFIED, null, this);
+        getLoaderManager().initLoader(LOADER_ID_LINKED_IDS, null, this);
     }
 
     public Loader<Cursor> onCreateLoader(int id, Bundle args) {
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/LinkedIdsAdapter.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/LinkedIdsAdapter.java
index 1e4968615..a44358172 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/LinkedIdsAdapter.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/LinkedIdsAdapter.java
@@ -21,24 +21,35 @@ package org.sufficientlysecure.keychain.ui.adapter;
 import android.app.Activity;
 import android.content.Context;
 import android.database.Cursor;
-import android.graphics.Typeface;
 import android.net.Uri;
+import android.support.v4.app.Fragment;
 import android.support.v4.content.CursorLoader;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.TextView;
 
+import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.R;
-import org.sufficientlysecure.keychain.pgp.KeyRing;
+import org.sufficientlysecure.keychain.pgp.linked.LinkedIdentity;
+import org.sufficientlysecure.keychain.pgp.linked.LinkedResource;
 import org.sufficientlysecure.keychain.pgp.linked.RawLinkedIdentity;
+import org.sufficientlysecure.keychain.pgp.linked.resources.DnsResource;
 import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
 import org.sufficientlysecure.keychain.provider.KeychainContract.UserPackets;
+import org.sufficientlysecure.keychain.ui.ViewKeyFragment;
+import org.sufficientlysecure.keychain.ui.linked.LinkedIdViewFragment;
 import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
 
+import java.io.IOException;
+import java.util.WeakHashMap;
+
+
 public class LinkedIdsAdapter extends UserAttributesAdapter {
     protected LayoutInflater mInflater;
+    WeakHashMap<Integer,RawLinkedIdentity> mLinkedIdentityCache = new WeakHashMap<>();
 
     public LinkedIdsAdapter(Context context, Cursor c, int flags) {
         super(context, c, flags);
@@ -46,106 +57,94 @@ public class LinkedIdsAdapter extends UserAttributesAdapter {
     }
 
     @Override
+    public void bindView(View view, Context context, Cursor cursor) {
+
+        RawLinkedIdentity id = getItem(cursor.getPosition());
+        ViewHolder holder = (ViewHolder) view.getTag();
+
+        int isVerified = cursor.getInt(INDEX_VERIFIED);
+        switch (isVerified) {
+            case Certs.VERIFIED_SECRET:
+                KeyFormattingUtils.setStatusImage(mContext, holder.vVerified,
+                        null, KeyFormattingUtils.STATE_VERIFIED, KeyFormattingUtils.DEFAULT_COLOR);
+                break;
+            case Certs.VERIFIED_SELF:
+                KeyFormattingUtils.setStatusImage(mContext, holder.vVerified,
+                        null, KeyFormattingUtils.STATE_UNVERIFIED, KeyFormattingUtils.DEFAULT_COLOR);
+                break;
+            default:
+                KeyFormattingUtils.setStatusImage(mContext, holder.vVerified,
+                        null, KeyFormattingUtils.STATE_INVALID, KeyFormattingUtils.DEFAULT_COLOR);
+                break;
+        }
+
+        if (holder instanceof ViewHolderNonRaw) {
+            ((ViewHolderNonRaw) holder).setData(mContext, (LinkedIdentity) id);
+        }
+
+    }
+
+    @Override
     public int getItemViewType(int position) {
-        RawLinkedIdentity id = (RawLinkedIdentity) getItem(position);
+        RawLinkedIdentity id = getItem(position);
 
-        // TODO return different ids by type
+        if (id instanceof LinkedIdentity) {
+            LinkedResource res = ((LinkedIdentity) id).mResource;
+            if (res instanceof DnsResource) {
+                return 1;
+            }
+        }
 
         return 0;
     }
 
     @Override
     public int getViewTypeCount() {
-        return 1;
+        return 2;
     }
 
     @Override
-    public Object getItem(int position) {
+    public RawLinkedIdentity getItem(int position) {
+        RawLinkedIdentity ret = mLinkedIdentityCache.get(position);
+        if (ret != null) {
+            return ret;
+        }
+
         Cursor c = getCursor();
         c.moveToPosition(position);
 
         byte[] data = c.getBlob(INDEX_ATTRIBUTE_DATA);
-        RawLinkedIdentity identity = RawLinkedIdentity.fromSubpacketData(data);
-
-        return identity;
+        try {
+            ret = LinkedIdentity.fromAttributeData(data);
+            mLinkedIdentityCache.put(position, ret);
+            return ret;
+        } catch (IOException e) {
+            Log.e(Constants.TAG, "could not read linked identity subpacket data", e);
+            return null;
+        }
     }
 
     @Override
-    public void bindView(View view, Context context, Cursor cursor) {
-        TextView vName = (TextView) view.findViewById(R.id.user_id_item_name);
-        TextView vAddress = (TextView) view.findViewById(R.id.user_id_item_address);
-        TextView vComment = (TextView) view.findViewById(R.id.user_id_item_comment);
-        ImageView vVerified = (ImageView) view.findViewById(R.id.user_id_item_certified);
-        View vVerifiedLayout = view.findViewById(R.id.user_id_item_certified_layout);
-        ImageView vEditImage = (ImageView) view.findViewById(R.id.user_id_item_edit_image);
-        ImageView vDeleteButton = (ImageView) view.findViewById(R.id.user_id_item_delete_button);
-        vDeleteButton.setVisibility(View.GONE); // not used
-
-        String userId = cursor.getString(INDEX_USER_ID);
-        String[] splitUserId = KeyRing.splitUserId(userId);
-        if (splitUserId[0] != null) {
-            vName.setText(splitUserId[0]);
-        } else {
-            vName.setText(R.string.user_id_no_name);
-        }
-        if (splitUserId[1] != null) {
-            vAddress.setText(splitUserId[1]);
-            vAddress.setVisibility(View.VISIBLE);
-        } else {
-            vAddress.setVisibility(View.GONE);
-        }
-        if (splitUserId[2] != null) {
-            vComment.setText(splitUserId[2]);
-            vComment.setVisibility(View.VISIBLE);
-        } else {
-            vComment.setVisibility(View.GONE);
-        }
-
-        boolean isPrimary = cursor.getInt(INDEX_IS_PRIMARY) != 0;
-        boolean isRevoked = cursor.getInt(INDEX_IS_REVOKED) > 0;
-        vVerifiedLayout.setVisibility(View.VISIBLE);
-
-        if (isRevoked) {
-            // set revocation icon (can this even be primary?)
-            KeyFormattingUtils.setStatusImage(mContext, vVerified, null, KeyFormattingUtils.STATE_REVOKED, R.color.bg_gray);
-
-            // disable revoked user ids
-            vName.setEnabled(false);
-            vAddress.setEnabled(false);
-            vComment.setEnabled(false);
-        } else {
-            vName.setEnabled(true);
-            vAddress.setEnabled(true);
-            vComment.setEnabled(true);
-
-            if (isPrimary) {
-                vName.setTypeface(null, Typeface.BOLD);
-                vAddress.setTypeface(null, Typeface.BOLD);
-            } else {
-                vName.setTypeface(null, Typeface.NORMAL);
-                vAddress.setTypeface(null, Typeface.NORMAL);
+    public View newView(Context context, Cursor cursor, ViewGroup parent) {
+        int type = getItemViewType(cursor.getPosition());
+        switch(type) {
+            case 0: {
+                View v = mInflater.inflate(R.layout.linked_id_item_unknown, null);
+                ViewHolder holder = new ViewHolder(v);
+                v.setTag(holder);
+                return v;
             }
-
-            int isVerified = cursor.getInt(INDEX_VERIFIED);
-            switch (isVerified) {
-                case Certs.VERIFIED_SECRET:
-                    KeyFormattingUtils.setStatusImage(mContext, vVerified, null, KeyFormattingUtils.STATE_VERIFIED, KeyFormattingUtils.DEFAULT_COLOR);
-                    break;
-                case Certs.VERIFIED_SELF:
-                    KeyFormattingUtils.setStatusImage(mContext, vVerified, null, KeyFormattingUtils.STATE_UNVERIFIED, KeyFormattingUtils.DEFAULT_COLOR);
-                    break;
-                default:
-                    KeyFormattingUtils.setStatusImage(mContext, vVerified, null, KeyFormattingUtils.STATE_INVALID, KeyFormattingUtils.DEFAULT_COLOR);
-                    break;
+            case 1: {
+                View v = mInflater.inflate(R.layout.linked_id_item_dns, null);
+                ViewHolder holder = new ViewHolderDns(v);
+                v.setTag(holder);
+                return v;
             }
+            default:
+                throw new AssertionError("all cases must be covered in LinkedIdsAdapter.newView!");
         }
     }
 
-    @Override
-    public View newView(Context context, Cursor cursor, ViewGroup parent) {
-        return mInflater.inflate(R.layout.view_key_adv_user_id_item, null);
-    }
-
     // don't show revoked user ids, irrelevant for average users
     public static final String LINKED_IDS_WHERE = UserPackets.IS_REVOKED + " = 0";
 
@@ -155,4 +154,48 @@ public class LinkedIdsAdapter extends UserAttributesAdapter {
                 UserIdsAdapter.USER_PACKETS_PROJECTION, LINKED_IDS_WHERE, null, null);
     }
 
+    public Fragment getLinkedIdFragment(int position) {
+        RawLinkedIdentity id = getItem(position);
+
+        return LinkedIdViewFragment.newInstance(id);
+    }
+
+    static class ViewHolder {
+        ImageView vVerified;
+
+        ViewHolder(View view) {
+            vVerified = (ImageView) view.findViewById(R.id.user_id_item_certified);
+        }
+    }
+
+    static abstract class ViewHolderNonRaw extends ViewHolder {
+        ViewHolderNonRaw(View view) {
+            super(view);
+        }
+
+        abstract void setData(Context context, LinkedIdentity id);
+    }
+
+    static class ViewHolderDns extends ViewHolderNonRaw {
+        TextView vFqdn;
+
+        ViewHolderDns(View view) {
+            super(view);
+
+            vFqdn = (TextView) view.findViewById(R.id.linked_id_dns_fqdn);
+        }
+
+        @Override
+        void setData(Context context, LinkedIdentity id) {
+            DnsResource res = (DnsResource) id.mResource;
+            vFqdn.setText(res.getFqdn());
+        }
+
+    }
+
+    @Override
+    public void notifyDataSetChanged() {
+        mLinkedIdentityCache.clear();
+        super.notifyDataSetChanged();
+    }
 }
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/UserAttributesAdapter.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/UserAttributesAdapter.java
index 3bc1b200b..345ccccc0 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/UserAttributesAdapter.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/adapter/UserAttributesAdapter.java
@@ -48,4 +48,5 @@ public abstract class UserAttributesAdapter extends CursorAdapter {
         mCursor.moveToPosition(position);
         return mCursor.getInt(INDEX_VERIFIED);
     }
+
 }
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateDnsStep1Fragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateDnsStep1Fragment.java
index 14d5f3b5d..26b0a0539 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateDnsStep1Fragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateDnsStep1Fragment.java
@@ -73,7 +73,7 @@ public class LinkedIdCreateDnsStep1Fragment extends Fragment {
                     return;
                 }
 
-                String proofNonce = RawLinkedIdentity.generateNonce();
+                int proofNonce = RawLinkedIdentity.generateNonce();
                 String proofText = DnsResource.generateText(getActivity(),
                         mLinkedIdWizard.mFingerprint, proofNonce);
 
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateDnsStep2Fragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateDnsStep2Fragment.java
index 6c9110ffd..71a3673f2 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateDnsStep2Fragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateDnsStep2Fragment.java
@@ -41,6 +41,7 @@ import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.results.LinkedVerifyResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.pgp.WrappedUserAttribute;
+import org.sufficientlysecure.keychain.pgp.linked.LinkedIdentity;
 import org.sufficientlysecure.keychain.pgp.linked.RawLinkedIdentity;
 import org.sufficientlysecure.keychain.pgp.linked.resources.DnsResource;
 import org.sufficientlysecure.keychain.service.KeychainIntentService;
@@ -80,13 +81,13 @@ public class LinkedIdCreateDnsStep2Fragment extends Fragment {
      * Creates new instance of this fragment
      */
     public static LinkedIdCreateDnsStep2Fragment newInstance
-            (String uri, String proofNonce, String proofText) {
+            (String uri, int proofNonce, String proofText) {
 
         LinkedIdCreateDnsStep2Fragment frag = new LinkedIdCreateDnsStep2Fragment();
 
         Bundle args = new Bundle();
         args.putString(DOMAIN, uri);
-        args.putString(NONCE, proofNonce);
+        args.putInt(NONCE, proofNonce);
         args.putString(TEXT, proofText);
         frag.setArguments(args);
 
@@ -237,6 +238,7 @@ public class LinkedIdCreateDnsStep2Fragment extends Fragment {
                     mVerifiedResource = resource;
                 } else {
                     setVerifyProgress(false, false);
+                    mVerifiedResource = resource;
                     // on error, show error message
                     result.createNotify(getActivity()).show();
                 }
@@ -308,7 +310,7 @@ public class LinkedIdCreateDnsStep2Fragment extends Fragment {
                 new SaveKeyringParcel(mLinkedIdWizard.mMasterKeyId, mLinkedIdWizard.mFingerprint);
 
         WrappedUserAttribute ua =
-                RawLinkedIdentity.fromResource(mVerifiedResource, mResourceNonce).toUserAttribute();
+                LinkedIdentity.fromResource(mVerifiedResource, mResourceNonce).toUserAttribute();
 
         skp.mAddUserAttribute.add(ua);
 
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateHttpsStep1Fragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateHttpsStep1Fragment.java
index 9fe1d43a3..78ca4cfe9 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateHttpsStep1Fragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateHttpsStep1Fragment.java
@@ -72,7 +72,7 @@ public class LinkedIdCreateHttpsStep1Fragment extends Fragment {
                     return;
                 }
 
-                String proofNonce = RawLinkedIdentity.generateNonce();
+                int proofNonce = RawLinkedIdentity.generateNonce();
                 String proofText = GenericHttpsResource.generateText(getActivity(),
                         mLinkedIdWizard.mFingerprint, proofNonce);
 
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateHttpsStep2Fragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateHttpsStep2Fragment.java
index f3fcc4410..78c7caf53 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateHttpsStep2Fragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateHttpsStep2Fragment.java
@@ -42,6 +42,7 @@ import org.sufficientlysecure.keychain.R;
 import org.sufficientlysecure.keychain.operations.results.LinkedVerifyResult;
 import org.sufficientlysecure.keychain.operations.results.OperationResult;
 import org.sufficientlysecure.keychain.pgp.WrappedUserAttribute;
+import org.sufficientlysecure.keychain.pgp.linked.LinkedIdentity;
 import org.sufficientlysecure.keychain.pgp.linked.RawLinkedIdentity;
 import org.sufficientlysecure.keychain.pgp.linked.resources.GenericHttpsResource;
 import org.sufficientlysecure.keychain.service.KeychainIntentService;
@@ -83,13 +84,13 @@ public class LinkedIdCreateHttpsStep2Fragment extends Fragment {
      * Creates new instance of this fragment
      */
     public static LinkedIdCreateHttpsStep2Fragment newInstance
-            (String uri, String proofNonce, String proofText) {
+            (String uri, int proofNonce, String proofText) {
 
         LinkedIdCreateHttpsStep2Fragment frag = new LinkedIdCreateHttpsStep2Fragment();
 
         Bundle args = new Bundle();
         args.putString(URI, uri);
-        args.putString(NONCE, proofNonce);
+        args.putInt(NONCE, proofNonce);
         args.putString(TEXT, proofText);
         frag.setArguments(args);
 
@@ -315,7 +316,7 @@ public class LinkedIdCreateHttpsStep2Fragment extends Fragment {
                 new SaveKeyringParcel(mLinkedIdWizard.mMasterKeyId, mLinkedIdWizard.mFingerprint);
 
         WrappedUserAttribute ua =
-                RawLinkedIdentity.fromResource(mVerifiedResource, mResourceNonce).toUserAttribute();
+                LinkedIdentity.fromResource(mVerifiedResource, mResourceNonce).toUserAttribute();
 
         skp.mAddUserAttribute.add(ua);
 
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateTwitterStep1Fragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateTwitterStep1Fragment.java
index 8113525be..e966fd71f 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateTwitterStep1Fragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateTwitterStep1Fragment.java
@@ -92,7 +92,7 @@ public class LinkedIdCreateTwitterStep1Fragment extends Fragment {
                             return;
                         }
 
-                        String proofNonce = RawLinkedIdentity.generateNonce();
+                        int proofNonce = RawLinkedIdentity.generateNonce();
                         String proofText = TwitterResource.generateText(getActivity(),
                                 mLinkedIdWizard.mFingerprint, proofNonce);
 
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateTwitterStep2Fragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateTwitterStep2Fragment.java
index ab56e7a5d..837b84d40 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateTwitterStep2Fragment.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdCreateTwitterStep2Fragment.java
@@ -52,13 +52,13 @@ public class LinkedIdCreateTwitterStep2Fragment extends Fragment {
      * Creates new instance of this fragment
      */
     public static LinkedIdCreateTwitterStep2Fragment newInstance
-            (String handle, String proofNonce, String proofText) {
+            (String handle, int proofNonce, String proofText) {
 
         LinkedIdCreateTwitterStep2Fragment frag = new LinkedIdCreateTwitterStep2Fragment();
 
         Bundle args = new Bundle();
         args.putString(HANDLE, handle);
-        args.putString(NONCE, proofNonce);
+        args.putInt(NONCE, proofNonce);
         args.putString(TEXT, proofText);
         frag.setArguments(args);
 
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdViewFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdViewFragment.java
new file mode 100644
index 000000000..0eb0dcd45
--- /dev/null
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/linked/LinkedIdViewFragment.java
@@ -0,0 +1,45 @@
+package org.sufficientlysecure.keychain.ui.linked;
+
+import android.os.Bundle;
+import android.support.v4.app.Fragment;
+import android.support.v7.widget.CardView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.ViewGroup;
+
+import org.sufficientlysecure.keychain.R;
+import org.sufficientlysecure.keychain.pgp.linked.RawLinkedIdentity;
+
+
+public class LinkedIdViewFragment extends Fragment {
+
+    private CardView mLinkedIdsCard;
+
+    public static Fragment newInstance(RawLinkedIdentity id) {
+        LinkedIdViewFragment frag = new LinkedIdViewFragment();
+
+        Bundle args = new Bundle();
+        frag.setArguments(args);
+
+        return frag;
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup superContainer, Bundle savedInstanceState) {
+        View root = inflater.inflate(R.layout.linked_id_view_fragment, null);
+
+        mLinkedIdsCard = (CardView) root.findViewById(R.id.card_linked_ids);
+
+        root.findViewById(R.id.back_button).setClickable(true);
+        root.findViewById(R.id.back_button).setOnClickListener(new OnClickListener() {
+            @Override
+            public void onClick(View v) {
+                getFragmentManager().popBackStack();
+            }
+        });
+
+        return root;
+    }
+
+}