Files
packages_apps_Settings/src/com/android/settings/fingerprint/FingerprintSettings.java
Mahaver Chopra a186c8d801 Fixes for fingerprint profile challenge
"Remove all fingerprints?" dialog should only be shown when removing the
last finger print. Fixed.
Changed the Dialog description for the same.

Bug: 26903306
Change-Id: I11b11a9173fa9b09e3fb20bb8a8e7a64594a7d81
2016-02-16 17:27:30 +00:00

841 lines
36 KiB
Java

/*
* 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.fingerprint;
import android.annotation.Nullable;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.app.admin.DevicePolicyManager;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Typeface;
import android.graphics.drawable.Drawable;
import android.hardware.fingerprint.Fingerprint;
import android.hardware.fingerprint.FingerprintManager;
import android.hardware.fingerprint.FingerprintManager.AuthenticationCallback;
import android.hardware.fingerprint.FingerprintManager.AuthenticationResult;
import android.hardware.fingerprint.FingerprintManager.RemovalCallback;
import android.os.Bundle;
import android.os.CancellationSignal;
import android.os.Handler;
import android.os.UserHandle;
import android.os.UserManager;
import android.support.v7.preference.Preference;
import android.support.v7.preference.Preference.OnPreferenceChangeListener;
import android.support.v7.preference.PreferenceGroup;
import android.support.v7.preference.PreferenceScreen;
import android.support.v7.preference.PreferenceViewHolder;
import android.text.Annotation;
import android.text.SpannableString;
import android.text.SpannableStringBuilder;
import android.text.TextPaint;
import android.text.method.LinkMovementMethod;
import android.text.style.URLSpan;
import android.util.AttributeSet;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.WindowManager;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import com.android.internal.logging.MetricsLogger;
import com.android.internal.logging.MetricsProto.MetricsEvent;
import com.android.settings.ChooseLockGeneric;
import com.android.settings.ChooseLockSettingsHelper;
import com.android.settings.HelpUtils;
import com.android.settings.R;
import com.android.settings.SettingsPreferenceFragment;
import com.android.settings.SubSettings;
import com.android.settings.Utils;
import com.android.settingslib.RestrictedLockUtils;
import java.util.List;
import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
/**
* Settings screen for fingerprints
*/
public class FingerprintSettings extends SubSettings {
private static final String TAG = "FingerprintSettings";
/**
* Used by the choose fingerprint wizard to indicate the wizard is
* finished, and each activity in the wizard should finish.
* <p>
* Previously, each activity in the wizard would finish itself after
* starting the next activity. However, this leads to broken 'Back'
* behavior. So, now an activity does not finish itself until it gets this
* result.
*/
protected static final int RESULT_FINISHED = RESULT_FIRST_USER;
/**
* Used by the enrolling screen during setup wizard to skip over setting up fingerprint, which
* will be useful if the user accidentally entered this flow.
*/
protected static final int RESULT_SKIP = RESULT_FIRST_USER + 1;
/**
* Like {@link #RESULT_FINISHED} except this one indicates enrollment failed because the
* device was left idle. This is used to clear the credential token to require the user to
* re-enter their pin/pattern/password before continuing.
*/
protected static final int RESULT_TIMEOUT = RESULT_FIRST_USER + 2;
private static final long LOCKOUT_DURATION = 30000; // time we have to wait for fp to reset, ms
public static final String KEY_FINGERPRINT_SETTINGS = "fingerprint_settings";
@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 {
private static final int MAX_RETRY_ATTEMPTS = 20;
private static final int RESET_HIGHLIGHT_DELAY_MS = 500;
private static final String TAG = "FingerprintSettings";
private static final String KEY_FINGERPRINT_ITEM_PREFIX = "key_fingerprint_item";
private static final String KEY_FINGERPRINT_ADD = "key_fingerprint_add";
private static final String KEY_FINGERPRINT_ENABLE_KEYGUARD_TOGGLE =
"fingerprint_enable_keyguard_toggle";
private static final String KEY_LAUNCHED_CONFIRM = "launched_confirm";
private static final int MSG_REFRESH_FINGERPRINT_TEMPLATES = 1000;
private static final int MSG_FINGER_AUTH_SUCCESS = 1001;
private static final int MSG_FINGER_AUTH_FAIL = 1002;
private static final int MSG_FINGER_AUTH_ERROR = 1003;
private static final int MSG_FINGER_AUTH_HELP = 1004;
private static final int CONFIRM_REQUEST = 101;
private static final int CHOOSE_LOCK_GENERIC_REQUEST = 102;
private static final int ADD_FINGERPRINT_REQUEST = 10;
protected static final boolean DEBUG = true;
private FingerprintManager mFingerprintManager;
private CancellationSignal mFingerprintCancel;
private boolean mInFingerprintLockout;
private byte[] mToken;
private boolean mLaunchedConfirm;
private Drawable mHighlightDrawable;
private int mUserId;
private AuthenticationCallback mAuthCallback = new AuthenticationCallback() {
@Override
public void onAuthenticationSucceeded(AuthenticationResult result) {
int fingerId = result.getFingerprint().getFingerId();
mHandler.obtainMessage(MSG_FINGER_AUTH_SUCCESS, fingerId, 0).sendToTarget();
}
@Override
public void onAuthenticationFailed() {
mHandler.obtainMessage(MSG_FINGER_AUTH_FAIL).sendToTarget();
};
@Override
public void onAuthenticationError(int errMsgId, CharSequence errString) {
mHandler.obtainMessage(MSG_FINGER_AUTH_ERROR, errMsgId, 0, errString)
.sendToTarget();
}
@Override
public void onAuthenticationHelp(int helpMsgId, CharSequence helpString) {
mHandler.obtainMessage(MSG_FINGER_AUTH_HELP, helpMsgId, 0, helpString)
.sendToTarget();
}
};
private RemovalCallback mRemoveCallback = new RemovalCallback() {
@Override
public void onRemovalSucceeded(Fingerprint fingerprint) {
mHandler.obtainMessage(MSG_REFRESH_FINGERPRINT_TEMPLATES,
fingerprint.getFingerId(), 0).sendToTarget();
}
@Override
public void onRemovalError(Fingerprint fp, int errMsgId, CharSequence errString) {
final Activity activity = getActivity();
if (activity != null) {
Toast.makeText(activity, errString, Toast.LENGTH_SHORT);
}
}
};
private final Handler mHandler = new Handler() {
@Override
public void handleMessage(android.os.Message msg) {
switch (msg.what) {
case MSG_REFRESH_FINGERPRINT_TEMPLATES:
removeFingerprintPreference(msg.arg1);
updateAddPreference();
retryFingerprint();
break;
case MSG_FINGER_AUTH_SUCCESS:
mFingerprintCancel = null;
highlightFingerprintItem(msg.arg1);
retryFingerprint();
break;
case MSG_FINGER_AUTH_FAIL:
// No action required... fingerprint will allow up to 5 of these
break;
case MSG_FINGER_AUTH_ERROR:
handleError(msg.arg1 /* errMsgId */, (CharSequence) msg.obj /* errStr */ );
break;
case MSG_FINGER_AUTH_HELP: {
// Not used
}
break;
}
};
};
private void stopFingerprint() {
if (mFingerprintCancel != null && !mFingerprintCancel.isCanceled()) {
mFingerprintCancel.cancel();
}
mFingerprintCancel = null;
}
/**
* @param errMsgId
*/
protected void handleError(int errMsgId, CharSequence msg) {
mFingerprintCancel = null;
switch (errMsgId) {
case FingerprintManager.FINGERPRINT_ERROR_CANCELED:
return; // Only happens if we get preempted by another activity. Ignored.
case FingerprintManager.FINGERPRINT_ERROR_LOCKOUT:
mInFingerprintLockout = true;
// We've been locked out. Reset after 30s.
if (!mHandler.hasCallbacks(mFingerprintLockoutReset)) {
mHandler.postDelayed(mFingerprintLockoutReset,
LOCKOUT_DURATION);
}
// Fall through to show message
default:
// Activity can be null on a screen rotation.
final Activity activity = getActivity();
if (activity != null) {
Toast.makeText(activity, msg , Toast.LENGTH_SHORT);
}
break;
}
retryFingerprint(); // start again
}
private void retryFingerprint() {
if (!mInFingerprintLockout) {
mFingerprintCancel = new CancellationSignal();
mFingerprintManager.authenticate(null, mFingerprintCancel, 0 /* flags */,
mAuthCallback, null, mUserId);
}
}
@Override
protected int getMetricsCategory() {
return MetricsEvent.FINGERPRINT;
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (savedInstanceState != null) {
mToken = savedInstanceState.getByteArray(
ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
mLaunchedConfirm = savedInstanceState.getBoolean(
KEY_LAUNCHED_CONFIRM, false);
}
mUserId = getActivity().getIntent().getIntExtra(
Intent.EXTRA_USER_ID, UserHandle.myUserId());
Activity activity = getActivity();
mFingerprintManager = (FingerprintManager) activity.getSystemService(
Context.FINGERPRINT_SERVICE);
// Need to authenticate a session token if none
if (mToken == null && mLaunchedConfirm == false) {
mLaunchedConfirm = true;
launchChooseOrConfirmLock();
}
}
@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
TextView v = (TextView) LayoutInflater.from(view.getContext()).inflate(
R.layout.fingerprint_settings_footer, null);
EnforcedAdmin admin = RestrictedLockUtils.checkIfKeyguardFeaturesDisabled(
getActivity(), DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT, mUserId);
v.setText(LearnMoreSpan.linkify(getText(admin != null
? R.string.security_settings_fingerprint_enroll_disclaimer_lockscreen_disabled
: R.string.security_settings_fingerprint_enroll_disclaimer),
getString(getHelpResource()), admin));
v.setMovementMethod(new LinkMovementMethod());
setFooterView(v);
}
protected void removeFingerprintPreference(int fingerprintId) {
String name = genKey(fingerprintId);
Preference prefToRemove = findPreference(name);
if (prefToRemove != null) {
if (!getPreferenceScreen().removePreference(prefToRemove)) {
Log.w(TAG, "Failed to remove preference with key " + name);
}
} else {
Log.w(TAG, "Can't find preference to remove: " + name);
}
}
/**
* 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();
addFingerprintItemPreferences(root);
setPreferenceScreen(root);
return root;
}
private void addFingerprintItemPreferences(PreferenceGroup root) {
root.removeAll();
final List<Fingerprint> items = mFingerprintManager.getEnrolledFingerprints(mUserId);
final int fingerprintCount = items.size();
for (int i = 0; i < fingerprintCount; i++) {
final Fingerprint item = items.get(i);
FingerprintPreference pref = new FingerprintPreference(root.getContext());
pref.setKey(genKey(item.getFingerId()));
pref.setTitle(item.getName());
pref.setFingerprint(item);
pref.setPersistent(false);
root.addPreference(pref);
pref.setOnPreferenceChangeListener(this);
}
Preference addPreference = new Preference(root.getContext());
addPreference.setKey(KEY_FINGERPRINT_ADD);
addPreference.setTitle(R.string.fingerprint_add_title);
addPreference.setIcon(R.drawable.ic_add_24dp);
root.addPreference(addPreference);
addPreference.setOnPreferenceChangeListener(this);
updateAddPreference();
}
private void updateAddPreference() {
/* Disable preference if too many fingerprints added */
final int max = getContext().getResources().getInteger(
com.android.internal.R.integer.config_fingerprintMaxTemplatesPerUser);
boolean tooMany = mFingerprintManager.getEnrolledFingerprints(mUserId).size() >= max;
CharSequence maxSummary = tooMany ?
getContext().getString(R.string.fingerprint_add_max, max) : "";
Preference addPreference = findPreference(KEY_FINGERPRINT_ADD);
addPreference.setSummary(maxSummary);
addPreference.setEnabled(!tooMany);
}
private static String genKey(int id) {
return KEY_FINGERPRINT_ITEM_PREFIX + "_" + id;
}
@Override
public void onResume() {
super.onResume();
// Make sure we reload the preference hierarchy since fingerprints may be added,
// deleted or renamed.
updatePreferences();
}
private void updatePreferences() {
createPreferenceHierarchy();
retryFingerprint();
}
@Override
public void onPause() {
super.onPause();
stopFingerprint();
}
@Override
public void onSaveInstanceState(final Bundle outState) {
outState.putByteArray(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN,
mToken);
outState.putBoolean(KEY_LAUNCHED_CONFIRM, mLaunchedConfirm);
}
@Override
public boolean onPreferenceTreeClick(Preference pref) {
final String key = pref.getKey();
if (KEY_FINGERPRINT_ADD.equals(key)) {
Intent intent = new Intent();
intent.setClassName("com.android.settings",
FingerprintEnrollEnrolling.class.getName());
intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, mToken);
startActivityForResult(intent, ADD_FINGERPRINT_REQUEST);
} else if (pref instanceof FingerprintPreference) {
FingerprintPreference fpref = (FingerprintPreference) pref;
final Fingerprint fp =fpref.getFingerprint();
showRenameDeleteDialog(fp);
return super.onPreferenceTreeClick(pref);
}
return true;
}
private void showRenameDeleteDialog(final Fingerprint fp) {
RenameDeleteDialog renameDeleteDialog = new RenameDeleteDialog();
Bundle args = new Bundle();
args.putParcelable("fingerprint", fp);
renameDeleteDialog.setArguments(args);
renameDeleteDialog.setTargetFragment(this, 0);
renameDeleteDialog.show(getFragmentManager(), RenameDeleteDialog.class.getName());
}
@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_fingerprint;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == CHOOSE_LOCK_GENERIC_REQUEST
|| requestCode == CONFIRM_REQUEST) {
if (resultCode == RESULT_FINISHED || resultCode == RESULT_OK) {
// The lock pin/pattern/password was set. Start enrolling!
if (data != null) {
mToken = data.getByteArrayExtra(
ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN);
}
}
} else if (requestCode == ADD_FINGERPRINT_REQUEST) {
if (resultCode == RESULT_TIMEOUT) {
Activity activity = getActivity();
activity.setResult(RESULT_TIMEOUT);
activity.finish();
}
}
if (mToken == null) {
// Didn't get an authentication, finishing
getActivity().finish();
}
}
@Override
public void onDestroy() {
super.onDestroy();
if (getActivity().isFinishing()) {
int result = mFingerprintManager.postEnroll();
if (result < 0) {
Log.w(TAG, "postEnroll failed: result = " + result);
}
}
}
private Drawable getHighlightDrawable() {
if (mHighlightDrawable == null) {
final Activity activity = getActivity();
if (activity != null) {
mHighlightDrawable = activity.getDrawable(R.drawable.preference_highlight);
}
}
return mHighlightDrawable;
}
private void highlightFingerprintItem(int fpId) {
String prefName = genKey(fpId);
FingerprintPreference fpref = (FingerprintPreference) findPreference(prefName);
final Drawable highlight = getHighlightDrawable();
if (highlight != null) {
final View view = fpref.getView();
final int centerX = view.getWidth() / 2;
final int centerY = view.getHeight() / 2;
highlight.setHotspot(centerX, centerY);
view.setBackground(highlight);
view.setPressed(true);
view.setPressed(false);
mHandler.postDelayed(new Runnable() {
@Override
public void run() {
view.setBackground(null);
}
}, RESET_HIGHLIGHT_DELAY_MS);
}
}
private void launchChooseOrConfirmLock() {
Intent intent = new Intent();
long challenge = mFingerprintManager.preEnroll();
ChooseLockSettingsHelper helper = new ChooseLockSettingsHelper(getActivity(), this);
if (!helper.launchConfirmationActivity(CONFIRM_REQUEST,
getString(R.string.security_settings_fingerprint_preference_title),
null, null, challenge, mUserId)) {
intent.setClassName("com.android.settings", ChooseLockGeneric.class.getName());
intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.MINIMUM_QUALITY_KEY,
DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
intent.putExtra(ChooseLockGeneric.ChooseLockGenericFragment.HIDE_DISABLED_PREFS,
true);
intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_HAS_CHALLENGE, true);
intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE, challenge);
intent.putExtra(Intent.EXTRA_USER_ID, mUserId);
startActivityForResult(intent, CHOOSE_LOCK_GENERIC_REQUEST);
}
}
private void deleteFingerPrint(Fingerprint fingerPrint) {
mFingerprintManager.remove(fingerPrint, mUserId, mRemoveCallback);
}
private void renameFingerPrint(int fingerId, String newName) {
mFingerprintManager.rename(fingerId, mUserId, newName);
updatePreferences();
}
private final Runnable mFingerprintLockoutReset = new Runnable() {
@Override
public void run() {
mInFingerprintLockout = false;
retryFingerprint();
}
};
public static class RenameDeleteDialog extends DialogFragment {
private Fingerprint mFp;
private EditText mDialogTextField;
private String mFingerName;
private Boolean mTextHadFocus;
private int mTextSelectionStart;
private int mTextSelectionEnd;
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
mFp = getArguments().getParcelable("fingerprint");
if (savedInstanceState != null) {
mFingerName = savedInstanceState.getString("fingerName");
mTextHadFocus = savedInstanceState.getBoolean("textHadFocus");
mTextSelectionStart = savedInstanceState.getInt("startSelection");
mTextSelectionEnd = savedInstanceState.getInt("endSelection");
}
final AlertDialog alertDialog = new AlertDialog.Builder(getActivity())
.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) {
final String newName =
mDialogTextField.getText().toString();
final CharSequence name = mFp.getName();
if (!newName.equals(name)) {
if (DEBUG) {
Log.v(TAG, "rename " + name + " to " + newName);
}
MetricsLogger.action(getContext(),
MetricsEvent.ACTION_FINGERPRINT_RENAME,
mFp.getFingerId());
FingerprintSettingsFragment parent
= (FingerprintSettingsFragment)
getTargetFragment();
parent.renameFingerPrint(mFp.getFingerId(),
newName);
}
dialog.dismiss();
}
})
.setNegativeButton(
R.string.security_settings_fingerprint_enroll_dialog_delete,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
onDeleteClick(dialog);
}
})
.create();
alertDialog.setOnShowListener(new DialogInterface.OnShowListener() {
@Override
public void onShow(DialogInterface dialog) {
mDialogTextField = (EditText) alertDialog.findViewById(
R.id.fingerprint_rename_field);
CharSequence name = mFingerName == null ? mFp.getName() : mFingerName;
mDialogTextField.setText(name);
if (mTextHadFocus == null) {
mDialogTextField.selectAll();
} else {
mDialogTextField.setSelection(mTextSelectionStart, mTextSelectionEnd);
}
}
});
if (mTextHadFocus == null || mTextHadFocus) {
// Request the IME
alertDialog.getWindow().setSoftInputMode(
WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
}
return alertDialog;
}
private void onDeleteClick(DialogInterface dialog) {
if (DEBUG) Log.v(TAG, "Removing fpId=" + mFp.getFingerId());
MetricsLogger.action(getContext(), MetricsEvent.ACTION_FINGERPRINT_DELETE,
mFp.getFingerId());
FingerprintSettingsFragment parent
= (FingerprintSettingsFragment) getTargetFragment();
final boolean isProfileChallengeUser =
Utils.isManagedProfile(UserManager.get(getContext()), parent.mUserId);
if (parent.mFingerprintManager.getEnrolledFingerprints(parent.mUserId).size() > 1) {
parent.deleteFingerPrint(mFp);
} else {
ConfirmLastDeleteDialog lastDeleteDialog = new ConfirmLastDeleteDialog();
Bundle args = new Bundle();
args.putParcelable("fingerprint", mFp);
args.putBoolean("isProfileChallengeUser", isProfileChallengeUser);
lastDeleteDialog.setArguments(args);
lastDeleteDialog.setTargetFragment(getTargetFragment(), 0);
lastDeleteDialog.show(getFragmentManager(),
ConfirmLastDeleteDialog.class.getName());
}
dialog.dismiss();
}
@Override
public void onSaveInstanceState(Bundle outState) {
super.onSaveInstanceState(outState);
if (mDialogTextField != null) {
outState.putString("fingerName", mDialogTextField.getText().toString());
outState.putBoolean("textHadFocus", mDialogTextField.hasFocus());
outState.putInt("startSelection", mDialogTextField.getSelectionStart());
outState.putInt("endSelection", mDialogTextField.getSelectionEnd());
}
}
}
public static class ConfirmLastDeleteDialog extends DialogFragment {
private Fingerprint mFp;
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
mFp = getArguments().getParcelable("fingerprint");
final boolean isProfileChallengeUser =
getArguments().getBoolean("isProfileChallengeUser");
final AlertDialog alertDialog = new AlertDialog.Builder(getActivity())
.setTitle(R.string.fingerprint_last_delete_title)
.setMessage((isProfileChallengeUser)
? R.string.fingerprint_last_delete_message_profile_challenge
: R.string.fingerprint_last_delete_message)
.setPositiveButton(R.string.fingerprint_last_delete_confirm,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
FingerprintSettingsFragment parent
= (FingerprintSettingsFragment) getTargetFragment();
parent.deleteFingerPrint(mFp);
dialog.dismiss();
}
})
.setNegativeButton(
R.string.cancel,
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
})
.create();
return alertDialog;
}
}
}
public static class FingerprintPreference extends Preference {
private Fingerprint mFingerprint;
private View mView;
public FingerprintPreference(Context context, AttributeSet attrs, int defStyleAttr,
int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
}
public FingerprintPreference(Context context, AttributeSet attrs, int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
public FingerprintPreference(Context context, AttributeSet attrs) {
this(context, attrs, com.android.internal.R.attr.preferenceStyle);
}
public FingerprintPreference(Context context) {
this(context, null);
}
public View getView() { return mView; }
public void setFingerprint(Fingerprint item) {
mFingerprint = item;
}
public Fingerprint getFingerprint() {
return mFingerprint;
}
@Override
public void onBindViewHolder(PreferenceViewHolder view) {
super.onBindViewHolder(view);
mView = view.itemView;
}
};
private static class LearnMoreSpan extends URLSpan {
private static final Typeface TYPEFACE_MEDIUM =
Typeface.create("sans-serif-medium", Typeface.NORMAL);
private static final String ANNOTATION_URL = "url";
private static final String ANNOTATION_ADMIN_DETAILS = "admin_details";
private EnforcedAdmin mEnforcedAdmin = null;
private LearnMoreSpan(String url) {
super(url);
}
private LearnMoreSpan(EnforcedAdmin admin) {
super((String) null);
mEnforcedAdmin = admin;
}
@Override
public void onClick(View widget) {
Context ctx = widget.getContext();
if (mEnforcedAdmin != null) {
RestrictedLockUtils.sendShowAdminSupportDetailsIntent(ctx, mEnforcedAdmin);
} else {
Intent intent = HelpUtils.getHelpIntent(ctx, getURL(), ctx.getClass().getName());
try {
widget.startActivityForResult(intent, 0);
} catch (ActivityNotFoundException e) {
Log.w(FingerprintSettingsFragment.TAG,
"Actvity was not found for intent, " + intent.toString());
}
}
}
@Override
public void updateDrawState(TextPaint ds) {
super.updateDrawState(ds);
ds.setUnderlineText(false);
ds.setTypeface(TYPEFACE_MEDIUM);
}
public static CharSequence linkify(CharSequence rawText, String uri, EnforcedAdmin admin) {
SpannableString msg = new SpannableString(rawText);
Annotation[] spans = msg.getSpans(0, msg.length(), Annotation.class);
SpannableStringBuilder builder = new SpannableStringBuilder(msg);
for (Annotation annotation : spans) {
final String key = annotation.getValue();
int start = msg.getSpanStart(annotation);
int end = msg.getSpanEnd(annotation);
LearnMoreSpan link = null;
if (ANNOTATION_URL.equals(key)) {
link = new LearnMoreSpan(uri);
} else if (ANNOTATION_ADMIN_DETAILS.equals(key)) {
link = new LearnMoreSpan(admin);
}
if (link != null) {
builder.setSpan(link, start, end, msg.getSpanFlags(link));
}
}
return builder;
}
}
public static Preference getFingerprintPreferenceForUser(Context context, int userId) {
FingerprintManager fpm = (FingerprintManager) context.getSystemService(
Context.FINGERPRINT_SERVICE);
if (fpm == null || !fpm.isHardwareDetected()) {
Log.v(TAG, "No fingerprint hardware detected!!");
return null;
}
Preference fingerprintPreference = new Preference(context);
fingerprintPreference.setKey(KEY_FINGERPRINT_SETTINGS);
fingerprintPreference.setTitle(R.string.security_settings_fingerprint_preference_title);
Intent intent = new Intent();
final List<Fingerprint> items = fpm.getEnrolledFingerprints(userId);
final int fingerprintCount = items != null ? items.size() : 0;
final String clazz;
if (fingerprintCount > 0) {
fingerprintPreference.setSummary(context.getResources().getQuantityString(
R.plurals.security_settings_fingerprint_preference_summary,
fingerprintCount, fingerprintCount));
clazz = FingerprintSettings.class.getName();
} else {
fingerprintPreference.setSummary(
R.string.security_settings_fingerprint_preference_summary_none);
clazz = FingerprintEnrollIntroduction.class.getName();
}
intent.setClassName("com.android.settings", clazz);
intent.putExtra(Intent.EXTRA_USER_ID, userId);
fingerprintPreference.setIntent(intent);
return fingerprintPreference;
}
}