Merge "UserCredentialsSettings: that fresh new blank look"

import android.security.KeyChain;

import android.security.KeyChain.KeyChainConnection;

import android.security.KeyStore;

import android.support.v7.widget.RecyclerView;

import android.util.Log;

import android.util.SparseArray;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.TextView;

import com.android.internal.logging.nano.MetricsProto.MetricsEvent;

import com.android.internal.widget.LockPatternUtils;

import com.android.settings.core.instrumentation.InstrumentedDialogFragment;

import com.android.settings.SettingsPreferenceFragment;

import com.android.settingslib.RestrictedLockUtils;

import com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;

import static android.view.View.GONE;

import static android.view.View.VISIBLE;

public class UserCredentialsSettings extends OptionsMenuFragment implements OnItemClickListener {

public class UserCredentialsSettings extends SettingsPreferenceFragment

        implements View.OnClickListener {

    private static final String TAG = "UserCredentialsSettings";

    private ListView mListView;

    @Override

    public int getMetricsCategory() {

        return MetricsEvent.USER_CREDENTIALS;

    }

    @Override

    public View onCreateView(

            LayoutInflater inflater, ViewGroup parent, Bundle savedInstanceState) {

        final View rootView = inflater.inflate(R.layout.user_credentials, parent, false);

        // Set up an OnItemClickListener for the credential list.

        mListView = (ListView) rootView.findViewById(R.id.credential_list);

        mListView.setOnItemClickListener(this);

        return rootView;

    }

    @Override

    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

        final Credential item = (Credential) parent.getItemAtPosition(position);

    public void onClick(final View view) {

        final Credential item = (Credential) view.getTag();

        if (item != null) {

            CredentialDialogFragment.show(this, item);

        }

    }

    protected void announceRemoval(String alias) {

        if (isAdded()) {

            mListView.announceForAccessibility(getString(R.string.user_credential_removed, alias));

        if (!isAdded()) {

            return;

        }

        getListView().announceForAccessibility(getString(R.string.user_credential_removed, alias));

    }

    protected void refreshItems() {

        @Override

        protected void onPostExecute(List<Credential> credentials) {

            final Credential[] credentialArray = credentials.toArray(new Credential[0]);

            mListView.setAdapter(new CredentialAdapter(getContext(), credentialArray));

            if (!isAdded()) {

                return;

            }

            if (credentials == null || credentials.size() == 0) {

                // Create a "no credentials installed" message for the empty case.

                TextView emptyTextView = (TextView) getActivity().findViewById(android.R.id.empty);

                emptyTextView.setText(R.string.user_credential_none_installed);

                setEmptyView(emptyTextView);

            } else {

                setEmptyView(null);

            }

            getListView().setAdapter(

                    new CredentialAdapter(credentials, UserCredentialsSettings.this));

        }

    }

    /**

     * Helper class to display {@link Credential}s in a list.

     */

    private static class CredentialAdapter extends ArrayAdapter<Credential> {

    private static class CredentialAdapter extends RecyclerView.Adapter<ViewHolder> {

        private static final int LAYOUT_RESOURCE = R.layout.user_credential_preference;

        public CredentialAdapter(Context context, final Credential[] objects) {

            super(context, LAYOUT_RESOURCE, objects);

        private final List<Credential> mItems;

        private final View.OnClickListener mListener;

        public CredentialAdapter(List<Credential> items, @Nullable View.OnClickListener listener) {

            mItems = items;

            mListener = listener;

        }

        @Override

        public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

            final LayoutInflater inflater = LayoutInflater.from(parent.getContext());

            return new ViewHolder(inflater.inflate(LAYOUT_RESOURCE, parent, false));

        }

        @Override

        public void onBindViewHolder(ViewHolder h, int position) {

            getCredentialView(mItems.get(position), LAYOUT_RESOURCE, h.itemView, null, false);

            h.itemView.setTag(mItems.get(position));

            h.itemView.setOnClickListener(mListener);

        }

        @Override

        public View getView(int position, @Nullable View view, ViewGroup parent) {

            return getCredentialView(getItem(position), LAYOUT_RESOURCE, view, parent,

                    /* expanded */ false);

        public int getItemCount() {

            return mItems.size();

        }

    }

    private static class ViewHolder extends RecyclerView.ViewHolder {

        public ViewHolder(View item) {

            super(item);

        }

    }