package ve.gob.cenditel.tibisaymovil; import java.security.cert.X509Certificate; import java.util.ArrayList; import java.util.Collections; import java.util.List; import android.content.Context; import android.os.AsyncTask; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.CheckBox; import android.widget.ListView; import android.widget.TextView; public class DirectCertificateAdapter extends BaseAdapter { private final List aliases; private final List subjects = new ArrayList(); private DirectKeyChain keyChain; private Context context; public DirectCertificateAdapter(DirectKeyChain keyChain, Context context) throws KeystoreException { this.context=context; this.aliases = Collections.list(keyChain.getAliases()); this.subjects.addAll(Collections.nCopies(this.aliases.size(), (String) null)); this.keyChain = keyChain; } @Override public int getCount() { return this.aliases.size(); } @Override public String getItem(int adapterPosition) { return this.aliases.get(adapterPosition); } @Override public long getItemId(int adapterPosition) { return adapterPosition; } @Override public View getView(final int position, View convertView, ViewGroup parent) { if (convertView == null) { LayoutInflater inflater = LayoutInflater.from(this.context); convertView = inflater.inflate(R.layout.cert_item, parent, false); } TextView aliasTextView = (TextView) convertView.findViewById(R.id.cert_item_alias); TextView subjectTextView = (TextView) convertView.findViewById(R.id.cert_item_subject); CheckBox checkBox = (CheckBox) convertView.findViewById(R.id.cert_item_selected); String alias = this.aliases.get(position); convertView.setTag(alias); aliasTextView.setText(alias); String subject = this.subjects.get(position); if (subject == null) { new CertLoader(position, subjectTextView, this.keyChain).execute(); } else { subjectTextView.setText(subject); } ListView lv = (ListView)parent; /* //Old monochoice code. int listViewCheckedItemPosition = lv.getCheckedItemPosition(); int adapterCheckedItemPosition = listViewCheckedItemPosition; checkBox.setChecked(position == adapterCheckedItemPosition); */ checkBox.setChecked(lv.getCheckedItemPositions().get(position)); return convertView; } private class CertLoader extends AsyncTask { private final int adapterPosition; private final TextView subjectView; private DirectKeyChain keyChain; private CertLoader(int adapterPosition, TextView subjectView, DirectKeyChain keyChain) { this.adapterPosition = adapterPosition; this.subjectView = subjectView; this.keyChain = keyChain; } @Override protected String doInBackground(Void... params) { String alias = DirectCertificateAdapter.this.aliases.get(this.adapterPosition); X509Certificate cert; try { cert = this.keyChain.getCertificateChain(alias)[0]; // bouncycastle can handle the emailAddress OID of 1.2.840.113549.1.9.1 return cert.getSubjectDN().getName(); } catch (KeystoreException e) { return ""; } } @Override protected void onPostExecute(String subjectString) { DirectCertificateAdapter.this.subjects.set(this.adapterPosition, subjectString); this.subjectView.setText(subjectString); } } }