3e7e3d6c59
Use a retained worker fragment to track the asynchronous save-and-finish task so that ChoosePattern/Password activity is properly dismissed after a configuration change. Bug:23424884 Bug:23521530 Change-Id: I328022c1603cfb0f6812cd8aa7916ae7b72c9950
107 lines
3.1 KiB
Java
107 lines
3.1 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;
|
|
|
|
import android.app.Fragment;
|
|
import android.content.Intent;
|
|
import android.os.AsyncTask;
|
|
import android.os.Bundle;
|
|
import android.os.UserHandle;
|
|
|
|
import com.android.internal.widget.LockPatternUtils;
|
|
|
|
/**
|
|
* An invisible retained worker fragment to track the AsyncWork that saves (and optionally
|
|
* verifies if a challenge is given) the chosen lock credential (pattern/pin/password).
|
|
*/
|
|
abstract class SaveChosenLockWorkerBase extends Fragment {
|
|
|
|
private Listener mListener;
|
|
private boolean mFinished;
|
|
private Intent mResultData;
|
|
|
|
protected LockPatternUtils mUtils;
|
|
protected boolean mHasChallenge;
|
|
protected long mChallenge;
|
|
protected boolean mWasSecureBefore;
|
|
|
|
@Override
|
|
public void onCreate(Bundle savedInstanceState) {
|
|
super.onCreate(savedInstanceState);
|
|
setRetainInstance(true);
|
|
}
|
|
|
|
public void setListener(Listener listener) {
|
|
if (mListener == listener) {
|
|
return;
|
|
}
|
|
|
|
mListener = listener;
|
|
if (mFinished && mListener != null) {
|
|
mListener.onChosenLockSaveFinished(mWasSecureBefore, mResultData);
|
|
}
|
|
}
|
|
|
|
protected void prepare(LockPatternUtils utils, boolean credentialRequired,
|
|
boolean hasChallenge, long challenge) {
|
|
mUtils = utils;
|
|
|
|
mHasChallenge = hasChallenge;
|
|
mChallenge = challenge;
|
|
mWasSecureBefore = mUtils.isSecure(UserHandle.myUserId());
|
|
|
|
mUtils.setCredentialRequiredToDecrypt(credentialRequired);
|
|
|
|
mFinished = false;
|
|
mResultData = null;
|
|
}
|
|
|
|
protected void start() {
|
|
new Task().execute();
|
|
}
|
|
|
|
/**
|
|
* Executes the save and verify work in background.
|
|
* @return Intent with challenge token or null.
|
|
*/
|
|
protected abstract Intent saveAndVerifyInBackground();
|
|
|
|
protected void finish(Intent resultData) {
|
|
mFinished = true;
|
|
mResultData = resultData;
|
|
if (mListener != null) {
|
|
mListener.onChosenLockSaveFinished(mWasSecureBefore, mResultData);
|
|
}
|
|
}
|
|
|
|
private class Task extends AsyncTask<Void, Void, Intent> {
|
|
@Override
|
|
protected Intent doInBackground(Void... params){
|
|
return saveAndVerifyInBackground();
|
|
}
|
|
|
|
@Override
|
|
protected void onPostExecute(Intent resultData) {
|
|
finish(resultData);
|
|
}
|
|
}
|
|
|
|
interface Listener {
|
|
public void onChosenLockSaveFinished(boolean wasSecureBefore, Intent resultData);
|
|
}
|
|
}
|