/* * Copyright (C) 2015 The Android Open Source Project * * 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 com.android.settings; import android.app.Activity; import android.app.AlertDialog; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.os.Bundle; import android.preference.Preference; import android.preference.Preference.OnPreferenceChangeListener; import android.preference.PreferenceGroup; import android.preference.PreferenceScreen; import android.service.fingerprint.FingerprintManager; import android.service.fingerprint.FingerprintManagerReceiver; import android.service.fingerprint.FingerprintManager.FingerprintItem; import android.util.Log; import android.widget.EditText; import com.android.settings.search.Indexable; import java.util.HashMap; import java.util.List; /** * Settings screen for fingerprints */ public class FingerprintSettings extends SettingsActivity { @Override public Intent getIntent() { Intent modIntent = new Intent(super.getIntent()); modIntent.putExtra(EXTRA_SHOW_FRAGMENT, FingerprintSettingsFragment.class.getName()); return modIntent; } @Override protected boolean isValidFragment(String fragmentName) { if (FingerprintSettingsFragment.class.getName().equals(fragmentName)) return true; return false; } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); CharSequence msg = getText(R.string.security_settings_fingerprint_preference_title); setTitle(msg); } public static class FingerprintSettingsFragment extends SettingsPreferenceFragment implements OnPreferenceChangeListener, Indexable { private static final String TAG = "FingerprintSettings"; private static final String KEY_FINGERPRINT_ITEM = "key_fingerprint_item"; private static final String KEY_USAGE_CATEGORY = "fingerprint_usage_category"; private static final String KEY_FINGERPRINT_ADD = "key_fingerprint_add"; private static final String KEY_MANAGE_CATEGORY = "fingerprint_manage_category"; private static final String KEY_FINGERPRINT_ENABLE_KEYGUARD_TOGGLE = "fingerprint_enable_keyguard_toggle"; private static final int ADD_FINGERPRINT_REQUEST = 10; private static final boolean ENABLE_USAGE_CATEGORY = false; private FingerprintManager mFingerprintManager; private HashMap mFingerprintMap = new HashMap(); private EditText mDialogTextField; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mFingerprintManager = (FingerprintManager) getActivity().getSystemService( Context.FINGERPRINT_SERVICE); mFingerprintManager.startListening(new FingerprintManagerReceiver() { @Override public void onRemoved(int fingerprintId) { Log.v(TAG, "Fingerprint template " + fingerprintId + " removed"); // TODO: this is a bit wasteful; just remove the fingerprint id item createPreferenceHierarchy(); } @Override public void onProcessed(int fingerprintId) { Log.v(TAG, "Fingerprint " + fingerprintId + " detected"); } }); } /** * Important! * * Don't forget to update the SecuritySearchIndexProvider if you are doing any change in the * logic or adding/removing preferences here. */ private PreferenceScreen createPreferenceHierarchy() { PreferenceScreen root = getPreferenceScreen(); if (root != null) { root.removeAll(); } addPreferencesFromResource(R.xml.security_settings_fingerprint); root = getPreferenceScreen(); // Fingerprint items PreferenceGroup manageCategory = (PreferenceGroup) root.findPreference( KEY_MANAGE_CATEGORY); if (manageCategory != null) { addFingerprintItemPreferences(manageCategory); } // Fingerprint usage options PreferenceGroup usageCategory = (PreferenceGroup) root.findPreference( KEY_USAGE_CATEGORY); if (usageCategory != null) { Preference toggle = root.findPreference(KEY_FINGERPRINT_ENABLE_KEYGUARD_TOGGLE); toggle.setOnPreferenceChangeListener(this); if (!ENABLE_USAGE_CATEGORY) { root.removePreference(usageCategory); } else { toggle.setOnPreferenceChangeListener(this); } } return root; } private void addFingerprintItemPreferences(PreferenceGroup manageFingerprintCategory) { manageFingerprintCategory.removeAll(); List items = mFingerprintManager.getEnrolledFingerprints(); final int fingerprintCount = items.size(); mFingerprintMap.clear(); for (int i = 0; i < fingerprintCount; i++) { Preference pref = new Preference(manageFingerprintCategory.getContext()); pref.setKey(KEY_FINGERPRINT_ITEM); FingerprintItem item = items.get(i); pref.setTitle(item.name); manageFingerprintCategory.addPreference(pref); pref.setOnPreferenceChangeListener(this); mFingerprintMap.put(pref, item); } Preference addPreference = new Preference(manageFingerprintCategory.getContext()); addPreference.setKey(KEY_FINGERPRINT_ADD); addPreference.setTitle(R.string.fingerprint_add_title); manageFingerprintCategory.addPreference(addPreference); addPreference.setOnPreferenceChangeListener(this); } @Override public void onResume() { super.onResume(); // Make sure we reload the preference hierarchy since fingerprints may be added, // deleted or renamed. createPreferenceHierarchy(); } @Override public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference pref) { final String key = pref.getKey(); if (KEY_FINGERPRINT_ADD.equals(key)) { Intent intent = new Intent(); intent.setClassName("com.android.settings", FingerprintEnroll.class.getName()); startActivityForResult(intent, ADD_FINGERPRINT_REQUEST); } else if (KEY_FINGERPRINT_ITEM.equals(key)) { final FingerprintItem item = mFingerprintMap.get(pref); showRenameDeleteDialog(item.name, pref, item.id); return super.onPreferenceTreeClick(preferenceScreen, pref); } return true; } private void showRenameDeleteDialog(final CharSequence name, Preference pref, final int fpId) { final Activity activity = getActivity(); AlertDialog dialog = new AlertDialog.Builder(activity) .setView(R.layout.fingerprint_rename_dialog) .setPositiveButton(R.string.security_settings_fingerprint_enroll_dialog_ok, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { String newName = mDialogTextField.getText().toString(); if (!newName.equals(name)) { Log.v(TAG, "Would rename " + name + " to " + newName); mFingerprintManager.rename(fpId, newName); } dialog.dismiss(); } }) .setNegativeButton(R.string.security_settings_fingerprint_enroll_dialog_delete, new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { Log.v(TAG, "Removing fpId " + fpId); mFingerprintManager.remove(fpId); dialog.dismiss(); } }) .create(); dialog.show(); mDialogTextField = (EditText) dialog.findViewById(R.id.fingerprint_rename_field); mDialogTextField.setText(name); mDialogTextField.selectAll(); } @Override public boolean onPreferenceChange(Preference preference, Object value) { boolean result = true; final String key = preference.getKey(); if (KEY_FINGERPRINT_ENABLE_KEYGUARD_TOGGLE.equals(key)) { // TODO } else { Log.v(TAG, "Unknown key:" + key); } return result; } @Override protected int getHelpResource() { return R.string.help_url_security; } } }