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      1 /*
      2  * Copyright (C) 2017 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.fingerprint;
     18 
     19 import android.app.admin.DevicePolicyManager;
     20 import android.content.Context;
     21 import android.hardware.fingerprint.FingerprintManager;
     22 import android.widget.Button;
     23 
     24 import com.android.settings.R;
     25 import com.android.settings.Utils;
     26 
     27 public class FingerprintSuggestionActivity extends SetupFingerprintEnrollIntroduction {
     28 
     29     @Override
     30     protected void initViews() {
     31         super.initViews();
     32 
     33         final Button cancelButton = findViewById(R.id.fingerprint_cancel_button);
     34         cancelButton.setText(R.string.security_settings_fingerprint_enroll_introduction_cancel);
     35     }
     36 
     37     @Override
     38     public void finish() {
     39         // Always use RESULT_CANCELED because this action can be done multiple times
     40         setResult(RESULT_CANCELED);
     41         super.finish();
     42     }
     43 
     44     public static boolean isSuggestionComplete(Context context) {
     45         return !Utils.hasFingerprintHardware(context)
     46                 || !isFingerprintEnabled(context)
     47                 || isNotSingleFingerprintEnrolled(context);
     48     }
     49 
     50     private static boolean isNotSingleFingerprintEnrolled(Context context) {
     51         final FingerprintManager manager = Utils.getFingerprintManagerOrNull(context);
     52         return manager == null || manager.getEnrolledFingerprints().size() != 1;
     53     }
     54 
     55     static boolean isFingerprintEnabled(Context context) {
     56         final DevicePolicyManager dpManager =
     57                 (DevicePolicyManager) context.getSystemService(Context.DEVICE_POLICY_SERVICE);
     58         final int dpmFlags = dpManager.getKeyguardDisabledFeatures(null, /* admin */
     59                 context.getUserId());
     60         return (dpmFlags & DevicePolicyManager.KEYGUARD_DISABLE_FINGERPRINT) == 0;
     61     }
     62 }
     63