Add fingerprint on SecurityScene

app/src/main/java/com/hippo/ehviewer/ui/scene/SecurityScene.java

@@ -19,11 +19,15 @@ package com.hippo.ehviewer.ui.scene;
 import android.content.Context;
 import android.hardware.Sensor;
 import android.hardware.SensorManager;
+import android.hardware.fingerprint.FingerprintManager;
+import android.os.Build;
 import android.os.Bundle;
+import android.os.CancellationSignal;
 import android.support.annotation.Nullable;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.ImageView;
 
 import com.hippo.ehviewer.R;
 import com.hippo.ehviewer.Settings;
@@ -42,15 +46,21 @@ public class SecurityScene extends SolidScene implements
         LockPatternView.OnPatternListener, ShakeDetector.OnShakeListener {
 
     private static final int MAX_RETRY_TIMES = 5;
+    private static final long ERROR_TIMEOUT_MILLIS = 1200;
+    private static final long SUCCESS_DELAY_MILLIS = 100;
 
     private static final String KEY_RETRY_TIMES = "retry_times";
 
     @Nullable
     private LockPatternView mPatternView;
+    private ImageView mFingerprintIcon;
 
     private SensorManager mSensorManager;
     private Sensor mAccelerometer;
     private ShakeDetector mShakeDetector;
+    private FingerprintManager mFingerprintManager;
+
+    private CancellationSignal mFingerprintCancellationSignal;
 
     private int mRetryTimes;
 
@@ -73,6 +83,9 @@ public class SecurityScene extends SolidScene implements
                 mShakeDetector.setOnShakeListener(this);
             }
         }
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+            mFingerprintManager = context.getSystemService(FingerprintManager.class);
+        }
 
         if (null == savedInstanceState) {
             mRetryTimes = MAX_RETRY_TIMES;
@@ -97,6 +110,38 @@ public class SecurityScene extends SolidScene implements
         if (null != mShakeDetector) {
             mSensorManager.registerListener(mShakeDetector, mAccelerometer, SensorManager.SENSOR_DELAY_UI);
         }
+
+        if (isFingerprintAuthAvailable()) {
+            mFingerprintCancellationSignal = new CancellationSignal();
+            // The line below prevents the false positive inspection from Android Studio
+            // noinspection ResourceType
+            mFingerprintManager.authenticate(null, mFingerprintCancellationSignal, 0,
+                    new FingerprintManager.AuthenticationCallback() {
+                        @Override
+                        public void onAuthenticationError(int errMsgId, CharSequence errString) {
+                            fingerprintError(true);
+                        }
+
+                        @Override
+                        public void onAuthenticationFailed() {
+                            fingerprintError(false);
+                        }
+
+                        @Override
+                        public void onAuthenticationSucceeded(
+                                FingerprintManager.AuthenticationResult result) {
+                            mFingerprintIcon.setImageResource(R.drawable.ic_fingerprint_success);
+                            mFingerprintIcon.postDelayed(new Runnable() {
+                                @Override
+                                public void run() {
+                                    startSceneForCheckStep(CHECK_STEP_SECURITY, getArguments());
+                                    finish();
+                                }
+                            }, SUCCESS_DELAY_MILLIS);
+
+                        }
+                    }, null);
+        }
     }
 
     @Override
@@ -106,6 +151,10 @@ public class SecurityScene extends SolidScene implements
         if (null != mShakeDetector) {
             mSensorManager.unregisterListener(mShakeDetector);
         }
+        if (isFingerprintAuthAvailable() && mFingerprintCancellationSignal != null) {
+            mFingerprintCancellationSignal.cancel();
+            mFingerprintCancellationSignal = null;
+        }
     }
 
     @Override
@@ -123,6 +172,11 @@ public class SecurityScene extends SolidScene implements
         mPatternView = (LockPatternView) ViewUtils.$$(view, R.id.pattern_view);
         mPatternView.setOnPatternListener(this);
 
+        mFingerprintIcon = (ImageView) ViewUtils.$$(view, R.id.fingerprint_icon);
+        if (Settings.getEnableFingerprint() && isFingerprintAuthAvailable()) {
+            mFingerprintIcon.setVisibility(View.VISIBLE);
+            mFingerprintIcon.setImageResource(R.drawable.ic_fp_40px);
+        }
         return view;
     }
 
@@ -176,4 +230,38 @@ public class SecurityScene extends SolidScene implements
             finish();
         }
     }
+
+    private boolean isFingerprintAuthAvailable() {
+        // The line below prevents the false positive inspection from Android Studio
+        // noinspection ResourceType
+        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
+                && Settings.getEnableFingerprint()
+                && mFingerprintManager != null
+                && mFingerprintManager.isHardwareDetected()
+                && mFingerprintManager.hasEnrolledFingerprints();
+    }
+
+    private Runnable mResetFingerprintRunnable = new Runnable() {
+        @Override
+        public void run() {
+            if (mFingerprintIcon != null)
+                mFingerprintIcon.setImageResource(R.drawable.ic_fp_40px);
+        }
+    };
+
+    private void fingerprintError(boolean unrecoverable) {
+        // Do not decrease mRetryTimes here since Android system will handle it :)
+        mFingerprintIcon.setImageResource(R.drawable.ic_fingerprint_error);
+        mFingerprintIcon.removeCallbacks(mResetFingerprintRunnable);
+        if (unrecoverable) {
+            mFingerprintIcon.postDelayed(new Runnable() {
+                @Override
+                public void run() {
+                    mFingerprintIcon.setVisibility(View.INVISIBLE);
+                }
+            }, ERROR_TIMEOUT_MILLIS);
+        } else {
+            mFingerprintIcon.postDelayed(mResetFingerprintRunnable, ERROR_TIMEOUT_MILLIS);
+        }
+    }
 }

app/src/main/res/drawable-mdpi/ic_fingerprint_error.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ 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
+  -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="40.0dp"
+        android:height="40.0dp"
+        android:viewportWidth="40.0"
+        android:viewportHeight="40.0">
+    <path
+        android:pathData="M20.0,0.0C8.96,0.0 0.0,8.95 0.0,20.0s8.96,20.0 20.0,20.0c11.04,0.0 20.0,-8.95 20.0,-20.0S31.04,0.0 20.0,0.0z"
+        android:fillColor="#F4511E"/>
+    <path
+        android:pathData="M21.33,29.33l-2.67,0.0l0.0,-2.67l2.67,0.0L21.33,29.33zM21.33,22.67l-2.67,0.0l0.0,-12.0l2.67,0.0L21.33,22.67z"
+        android:fillColor="#FFFFFF"/>
+</vector>

app/src/main/res/drawable-mdpi/ic_fingerprint_success.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ 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
+  -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        android:width="40.0dp"
+        android:height="40.0dp"
+        android:viewportWidth="40.0"
+        android:viewportHeight="40.0">
+    <path
+        android:pathData="M20.0,20.0m-20.0,0.0a20.0,20.0 0.0,1.0 1.0,40.0 0.0a20.0,20.0 0.0,1.0 1.0,-40.0 0.0"
+        android:fillColor="#009688"/>
+    <path
+        android:pathData="M11.2,21.41l1.63,-1.619999 4.17,4.169998 10.59,-10.589999 1.619999,1.63 -12.209999,12.209999z"
+        android:fillColor="#FFFFFF"/>
+</vector>

app/src/main/res/layout/scene_security.xml

@@ -27,12 +27,27 @@
         android:layout_gravity="center"
         android:layout_margin="32dp"
         app:maxWidth="320dp"
-        app:maxHeight="320dp">
+        app:maxHeight="360dp">
 
-        <com.hippo.widget.lockpattern.LockPatternView
-            android:id="@+id/pattern_view"
+        <LinearLayout
             android:layout_width="wrap_content"
-            android:layout_height="wrap_content"/>
+            android:layout_height="wrap_content"
+            android:orientation="vertical">
+
+            <com.hippo.widget.lockpattern.LockPatternView
+                android:id="@+id/pattern_view"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"/>
+
+            <ImageView
+                android:id="@+id/fingerprint_icon"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:src="@drawable/ic_fp_40px"
+                android:layout_gravity="center_horizontal"
+                android:visibility="gone" />
+
+        </LinearLayout>
 
     </com.hippo.widget.MaxSizeContainer>
 </FrameLayout>