1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.settings.biometrics; 18 19 import android.content.Intent; 20 import android.os.UserHandle; 21 import android.view.View; 22 23 import com.android.settings.R; 24 import com.android.settings.password.ChooseLockSettingsHelper; 25 26 import com.google.android.setupcompat.util.WizardManagerHelper; 27 28 /** 29 * Abstract base activity which handles the actual enrolling for biometrics. 30 */ 31 public abstract class BiometricsEnrollEnrolling extends BiometricEnrollBase 32 implements BiometricEnrollSidecar.Listener { 33 34 private static final String TAG_SIDECAR = "sidecar"; 35 36 protected BiometricEnrollSidecar mSidecar; 37 38 /** 39 * @return the intent for the finish activity 40 */ getFinishIntent()41 protected abstract Intent getFinishIntent(); 42 43 /** 44 * @return an instance of the biometric enroll sidecar 45 */ getSidecar()46 protected abstract BiometricEnrollSidecar getSidecar(); 47 48 /** 49 * @return true if enrollment should start automatically. 50 */ shouldStartAutomatically()51 protected abstract boolean shouldStartAutomatically(); 52 53 @Override onStart()54 protected void onStart() { 55 super.onStart(); 56 if (shouldStartAutomatically()) { 57 startEnrollment(); 58 } 59 } 60 61 @Override onStop()62 protected void onStop() { 63 super.onStop(); 64 65 if (mSidecar != null) { 66 mSidecar.setListener(null); 67 } 68 69 if (!isChangingConfigurations()) { 70 if (mSidecar != null) { 71 mSidecar.cancelEnrollment(); 72 getSupportFragmentManager() 73 .beginTransaction().remove(mSidecar).commitAllowingStateLoss(); 74 } 75 if (!WizardManagerHelper.isAnySetupWizard(getIntent())) { 76 setResult(RESULT_TIMEOUT); 77 } 78 finish(); 79 } 80 } 81 82 @Override shouldFinishWhenBackgrounded()83 protected boolean shouldFinishWhenBackgrounded() { 84 // Prevent super.onStop() from finishing, since we handle this in our onStop(). 85 return false; 86 } 87 88 @Override onBackPressed()89 public void onBackPressed() { 90 if (mSidecar != null) { 91 mSidecar.setListener(null); 92 mSidecar.cancelEnrollment(); 93 getSupportFragmentManager() 94 .beginTransaction().remove(mSidecar).commitAllowingStateLoss(); 95 mSidecar = null; 96 } 97 super.onBackPressed(); 98 } 99 onSkipButtonClick(View view)100 protected void onSkipButtonClick(View view) { 101 setResult(RESULT_SKIP); 102 finish(); 103 } 104 startEnrollment()105 public void startEnrollment() { 106 mSidecar = (BiometricEnrollSidecar) getSupportFragmentManager() 107 .findFragmentByTag(TAG_SIDECAR); 108 if (mSidecar == null) { 109 mSidecar = getSidecar(); 110 getSupportFragmentManager().beginTransaction().add(mSidecar, TAG_SIDECAR) 111 .commitAllowingStateLoss(); 112 } 113 mSidecar.setListener(this); 114 } 115 launchFinish(byte[] token)116 protected void launchFinish(byte[] token) { 117 Intent intent = getFinishIntent(); 118 intent.addFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT 119 | Intent.FLAG_ACTIVITY_CLEAR_TOP 120 | Intent.FLAG_ACTIVITY_SINGLE_TOP); 121 intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_CHALLENGE_TOKEN, token); 122 intent.putExtra(EXTRA_FROM_SETTINGS_SUMMARY, mFromSettingsSummary); 123 if (mUserId != UserHandle.USER_NULL) { 124 intent.putExtra(Intent.EXTRA_USER_ID, mUserId); 125 } 126 startActivity(intent); 127 overridePendingTransition(R.anim.sud_slide_next_in, R.anim.sud_slide_next_out); 128 finish(); 129 } 130 131 } 132