/* * Copyright 2018 Keval Patel. * * 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.kevalpatel.passcodeview.authenticator; import android.support.annotation.NonNull; import android.support.annotation.WorkerThread; import java.util.ArrayList; /** * Created by Keval on 14/04/18. * * @author <a href="https://github.com/kevalpatel2106">kevalpatel2106</a> * @see <a href="https://github.com/kevalpatel2106/PasscodeView/wiki/Authenticator">Authenticator</a> */ public final class PasscodeViewPinAuthenticator implements PinAuthenticator { private final int[] mCorrectPin; public PasscodeViewPinAuthenticator(int[] correctPin) { mCorrectPin = correctPin; } @WorkerThread @Override public PinAuthenticationState isValidPin(@NonNull final ArrayList<Integer> pinDigits) { //Check if the size of the entered pin matches the correct pin if (!isValidPinLength(pinDigits.size())) return PinAuthenticationState.NEED_MORE_DIGIT; //This calculations won't take much time. //We are not blocking the UI. for (int i = 0; i < mCorrectPin.length; i++) { if (mCorrectPin[i] != pinDigits.get(i)) { //Digit did not matched //Wrong PIN return PinAuthenticationState.FAIL; } } //PIN is correct return PinAuthenticationState.SUCCESS; } private boolean isValidPinLength(final int typedLength) { return typedLength == mCorrectPin.length; } }