Merge pull request #86 from tom5079/Pupil-59

Pupil 59

app/build.gradle

@@ -20,7 +20,7 @@ android {
         minSdkVersion 16
         targetSdkVersion 29
         versionCode 53
-        versionName "4.18-beta1"
+        versionName "4.18-alpha1"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
         vectorDrawables.useSupportLibrary = true
@@ -52,7 +52,7 @@ android {
 dependencies {
     def markwonVersion = '3.1.0'
 
-    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation fileTree(dir: 'libs', include: ['*.jar', '*.aar'])
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.7"
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.7"
@@ -80,6 +80,7 @@ dependencies {
     implementation 'net.rdrei.android.dirchooser:library:3.2@aar'
     implementation 'com.github.chrisbanes:PhotoView:2.3.0'
     implementation 'com.andrognito.patternlockview:patternlockview:1.0.0'
+    //implementation 'com.andrognito.pinlockview:pinlockview:2.1.0'
     implementation "ru.noties.markwon:core:${markwonVersion}"
     testImplementation 'junit:junit:4.13'
     androidTestImplementation 'androidx.test.ext:junit:1.1.1'

app/release/output.json

@@ -1 +1,20 @@
-[{"outputType":{"type":"APK"},"apkData":{"type":"MAIN","splits":[],"versionCode":52,"versionName":"4.17","enabled":true,"outputFile":"app-release.apk","fullName":"release","baseName":"release","dirName":""},"path":"app-release.apk","properties":{}}]
+{
+  "version": 1,
+  "artifactType": {
+    "type": "APK",
+    "kind": "Directory"
+  },
+  "applicationId": "xyz.quaver.pupil",
+  "variantName": "release",
+  "elements": [
+    {
+      "type": "SINGLE",
+      "filters": [],
+      "properties": [],
+      "versionCode": 53,
+      "versionName": "53",
+      "enabled": true,
+      "outputFile": "app-release.apk"
+    }
+  ]
+}

app/src/main/java/xyz/quaver/pupil/ui/LockActivity.kt

@@ -21,23 +21,157 @@ package xyz.quaver.pupil.ui
 import android.app.Activity
 import android.app.AlertDialog
 import android.os.Bundle
+import android.view.animation.Animation
+import android.view.animation.AnimationUtils
 import androidx.appcompat.app.AppCompatActivity
+import androidx.biometric.BiometricManager
+import androidx.biometric.BiometricPrompt
+import androidx.core.content.ContextCompat
+import androidx.preference.PreferenceManager
 import com.andrognito.patternlockview.PatternLockView
 import com.google.android.material.snackbar.Snackbar
 import kotlinx.android.synthetic.main.activity_lock.*
 import kotlinx.android.synthetic.main.fragment_pattern_lock.*
+import kotlinx.android.synthetic.main.fragment_pin_lock.*
 import xyz.quaver.pupil.R
+import xyz.quaver.pupil.ui.fragment.PINLockFragment
 import xyz.quaver.pupil.ui.fragment.PatternLockFragment
 import xyz.quaver.pupil.util.Lock
 import xyz.quaver.pupil.util.LockManager
 
 class LockActivity : AppCompatActivity() {
 
+    private lateinit var lockManager: LockManager
+    private var mode: String? = null
+
+    private val patternLockFragment = PatternLockFragment().apply {
+        var lastPass = ""
+        onPatternDrawn = {
+            when(mode) {
+                null -> {
+                    val result = lockManager.check(it)
+
+                    if (result == true) {
+                        setResult(Activity.RESULT_OK)
+                        finish()
+                    } else
+                        lock_pattern_view.setViewMode(PatternLockView.PatternViewMode.WRONG)
+                }
+                "add_lock" -> {
+                    if (lastPass.isEmpty()) {
+                        lastPass = it
+
+                        Snackbar.make(view!!, R.string.settings_lock_confirm, Snackbar.LENGTH_LONG).show()
+                    } else {
+                        if (lastPass == it) {
+                            LockManager(context!!).add(Lock.generate(Lock.Type.PATTERN, it))
+                            finish()
+                        } else {
+                            lock_pattern_view.setViewMode(PatternLockView.PatternViewMode.WRONG)
+                            lastPass = ""
+
+                            Snackbar.make(view!!, R.string.settings_lock_wrong_confirm, Snackbar.LENGTH_LONG).show()
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    private val pinLockFragment = PINLockFragment().apply {
+        var lastPass = ""
+        onPINEntered = {
+            when(mode) {
+                null -> {
+                    val result = lockManager.check(it)
+
+                    if (result == true) {
+                        setResult(Activity.RESULT_OK)
+                        finish()
+                    } else {
+                        indicator_dots.startAnimation(AnimationUtils.loadAnimation(context, R.anim.shake).apply {
+                            setAnimationListener(object: Animation.AnimationListener {
+                                override fun onAnimationEnd(animation: Animation?) {
+                                    pin_lock_view.resetPinLockView()
+                                    pin_lock_view.isEnabled = true
+                                }
+
+                                override fun onAnimationStart(animation: Animation?) {
+                                    pin_lock_view.isEnabled = false
+                                }
+
+                                override fun onAnimationRepeat(animation: Animation?) {
+                                    // Do Nothing
+                                }
+                            })
+                        })
+                    }
+                }
+                "add_lock" -> {
+                    if (lastPass.isEmpty()) {
+                        lastPass = it
+
+                        pin_lock_view.resetPinLockView()
+                        Snackbar.make(view!!, R.string.settings_lock_confirm, Snackbar.LENGTH_LONG).show()
+                    } else {
+                        if (lastPass == it) {
+                            LockManager(context!!).add(Lock.generate(Lock.Type.PIN, it))
+                            finish()
+                        } else {
+                            indicator_dots.startAnimation(AnimationUtils.loadAnimation(context, R.anim.shake).apply {
+                                setAnimationListener(object: Animation.AnimationListener {
+                                    override fun onAnimationEnd(animation: Animation?) {
+                                        pin_lock_view.resetPinLockView()
+                                        pin_lock_view.isEnabled = true
+                                    }
+
+                                    override fun onAnimationStart(animation: Animation?) {
+                                        pin_lock_view.isEnabled = false
+                                    }
+
+                                    override fun onAnimationRepeat(animation: Animation?) {
+                                        // Do Nothing
+                                    }
+                                })
+                            })
+                            lastPass = ""
+
+                            Snackbar.make(view!!, R.string.settings_lock_wrong_confirm, Snackbar.LENGTH_LONG).show()
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    private fun showBiometricPrompt() {
+        val promptInfo = BiometricPrompt.PromptInfo.Builder()
+            .setTitle(getText(R.string.settings_lock_fingerprint_prompt))
+            .setSubtitle(getText(R.string.settings_lock_fingerprint_prompt_subtitle))
+            .setNegativeButtonText("Cancel")
+            .setConfirmationRequired(false)
+            .build()
+
+        val biometricPrompt = BiometricPrompt(this, ContextCompat.getMainExecutor(this),
+            object : BiometricPrompt.AuthenticationCallback() {
+                override fun onAuthenticationSucceeded(
+                    result: BiometricPrompt.AuthenticationResult) {
+                    super.onAuthenticationSucceeded(result)
+                    setResult(RESULT_OK)
+                    finish()
+                    return
+                }
+            })
+
+        // Displays the "log in" prompt.
+        biometricPrompt.authenticate(promptInfo)
+    }
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_lock)
 
-        val lockManager = try {
+        lockManager = try {
             LockManager(this)
         } catch (e: Exception) {
             AlertDialog.Builder(this).apply {
@@ -50,12 +184,7 @@ class LockActivity : AppCompatActivity() {
             return
         }
 
-        val mode = intent.getStringExtra("mode")
+        mode = intent.getStringExtra("mode")
-
-        lock_pattern.isEnabled = false
-        lock_pin.isEnabled = false
-        lock_fingerprint.isEnabled = false
-        lock_password.isEnabled = false
 
         when(mode) {
             null -> {
@@ -64,52 +193,75 @@ class LockActivity : AppCompatActivity() {
                     finish()
                     return
                 }
+
+                if (
+                    PreferenceManager.getDefaultSharedPreferences(this).getBoolean("lock_fingerprint", false)
+                    && BiometricManager.from(this).canAuthenticate() == BiometricManager.BIOMETRIC_SUCCESS
+                ) {
+                    lock_fingerprint.apply {
+                        isEnabled = true
+                        setOnClickListener {
+                            showBiometricPrompt()
+                        }
+                    }
+                    showBiometricPrompt()
+                }
+
+                lock_pattern.apply {
+                    isEnabled = lockManager.contains(Lock.Type.PATTERN)
+                    setOnClickListener {
+                        supportFragmentManager.beginTransaction().replace(
+                            R.id.lock_content, patternLockFragment
+                        ).commit()
+                    }
+                }
+                lock_pin.apply {
+                    isEnabled = lockManager.contains(Lock.Type.PIN)
+                    setOnClickListener {
+                        supportFragmentManager.beginTransaction().replace(
+                            R.id.lock_content, pinLockFragment
+                        ).commit()
+                    }
+                }
+                lock_password.isEnabled = false
+
+                when (lockManager.locks!!.first().type) {
+                    Lock.Type.PIN -> {
+
+                        supportFragmentManager.beginTransaction().add(
+                            R.id.lock_content, pinLockFragment
+                        ).commit()
+                    }
+                    Lock.Type.PATTERN -> {
+                        supportFragmentManager.beginTransaction().add(
+                            R.id.lock_content, patternLockFragment
+                        ).commit()
+                    }
+                    else -> return
+                }
             }
             "add_lock" -> {
+                lock_pattern.isEnabled = false
+                lock_pin.isEnabled = false
+                lock_fingerprint.isEnabled = false
+                lock_password.isEnabled = false
+
                 when(intent.getStringExtra("type")!!) {
                     "pattern" -> {
-
+                        lock_pattern.isEnabled = true
+                        supportFragmentManager.beginTransaction().add(
+                            R.id.lock_content, patternLockFragment
+                        ).commit()
+                    }
+                    "pin" -> {
+                        lock_pin.isEnabled = true
+                        supportFragmentManager.beginTransaction().add(
+                            R.id.lock_content, pinLockFragment
+                        ).commit()
                     }
                 }
             }
         }
-
-        supportFragmentManager.beginTransaction().add(
-            R.id.lock_content,
-            PatternLockFragment().apply {
-                var lastPass = ""
-                onPatternDrawn = {
-                    when(mode) {
-                        null -> {
-                            val result = lockManager.check(it)
-
-                            if (result == true) {
-                                setResult(Activity.RESULT_OK)
-                                finish()
-                            } else
-                                lock_pattern_view.setViewMode(PatternLockView.PatternViewMode.WRONG)
-                        }
-                        "add_lock" -> {
-                            if (lastPass.isEmpty()) {
-                                lastPass = it
-
-                                Snackbar.make(view!!, R.string.settings_lock_confirm, Snackbar.LENGTH_LONG).show()
-                            } else {
-                                if (lastPass == it) {
-                                    LockManager(context!!).add(Lock.generate(Lock.Type.PATTERN, it))
-                                    finish()
-                                } else {
-                                    lock_pattern_view.setViewMode(PatternLockView.PatternViewMode.WRONG)
-                                    lastPass = ""
-
-                                    Snackbar.make(view!!, R.string.settings_lock_wrong_confirm, Snackbar.LENGTH_LONG).show()
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-        ).commit()
     }
 
 }

app/src/main/java/xyz/quaver/pupil/ui/SettingsActivity.kt

@@ -35,7 +35,7 @@ import kotlinx.serialization.builtins.serializer
 import net.rdrei.android.dirchooser.DirectoryChooserActivity
 import xyz.quaver.pupil.Pupil
 import xyz.quaver.pupil.R
-import xyz.quaver.pupil.ui.fragment.LockFragment
+import xyz.quaver.pupil.ui.fragment.LockSettingsFragment
 import xyz.quaver.pupil.ui.fragment.SettingsFragment
 import xyz.quaver.pupil.util.*
 import java.io.File
@@ -84,7 +84,7 @@ class SettingsActivity : AppCompatActivity() {
                 if (resultCode == Activity.RESULT_OK) {
                     supportFragmentManager
                         .beginTransaction()
-                        .replace(R.id.settings, LockFragment())
+                        .replace(R.id.settings, LockSettingsFragment())
                         .addToBackStack("Lock")
                         .commitAllowingStateLoss()
                 }

app/src/main/java/xyz/quaver/pupil/ui/fragment/LockFragment.kt

@@ -1,81 +0,0 @@
-/*
- *     Pupil, Hitomi.la viewer for Android
- *     Copyright (C) 2020  tom5079
- *
- *     This program is free software: you can redistribute it and/or modify
- *     it under the terms of the GNU General Public License as published by
- *     the Free Software Foundation, either version 3 of the License, or
- *     (at your option) any later version.
- *
- *     This program is distributed in the hope that it will be useful,
- *     but WITHOUT ANY WARRANTY; without even the implied warranty of
- *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *     GNU General Public License for more details.
- *
- *     You should have received a copy of the GNU General Public License
- *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package xyz.quaver.pupil.ui.fragment
-
-import android.content.Intent
-import android.os.Bundle
-import androidx.appcompat.app.AlertDialog
-import androidx.preference.Preference
-import androidx.preference.PreferenceFragmentCompat
-import xyz.quaver.pupil.R
-import xyz.quaver.pupil.ui.LockActivity
-import xyz.quaver.pupil.util.Lock
-import xyz.quaver.pupil.util.LockManager
-
-class LockFragment : PreferenceFragmentCompat() {
-
-    override fun onResume() {
-        super.onResume()
-
-        val lockManager = LockManager(context!!)
-
-        findPreference<Preference>("lock_pattern")?.summary =
-            if (lockManager.contains(Lock.Type.PATTERN))
-                getString(R.string.settings_lock_enabled)
-            else
-                ""
-    }
-
-    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
-        setPreferencesFromResource(R.xml.lock_preferences, rootKey)
-
-        with(findPreference<Preference>("lock_pattern")) {
-            this!!
-
-            if (LockManager(context!!).contains(Lock.Type.PATTERN))
-                summary = getString(R.string.settings_lock_enabled)
-
-            onPreferenceClickListener = Preference.OnPreferenceClickListener {
-                val lockManager = LockManager(context!!)
-
-                if (lockManager.contains(Lock.Type.PATTERN)) {
-                    AlertDialog.Builder(context).apply {
-                        setTitle(R.string.warning)
-                        setMessage(R.string.settings_lock_remove_message)
-
-                        setPositiveButton(android.R.string.yes) { _, _ ->
-                            lockManager.remove(Lock.Type.PATTERN)
-                            onResume()
-                        }
-                        setNegativeButton(android.R.string.no) { _, _ -> }
-                    }.show()
-                } else {
-                    val intent = Intent(context, LockActivity::class.java).apply {
-                        putExtra("mode", "add_lock")
-                        putExtra("type", "pattern")
-                    }
-
-                    startActivity(intent)
-                }
-
-                true
-            }
-        }
-    }
-}

app/src/main/java/xyz/quaver/pupil/ui/fragment/LockSettingsFragment.kt

@@ -0,0 +1,147 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2020  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package xyz.quaver.pupil.ui.fragment
+
+import android.content.Intent
+import android.os.Bundle
+import android.widget.Toast
+import androidx.appcompat.app.AlertDialog
+import androidx.preference.Preference
+import androidx.preference.PreferenceFragmentCompat
+import androidx.preference.PreferenceManager
+import androidx.preference.SwitchPreferenceCompat
+import xyz.quaver.pupil.R
+import xyz.quaver.pupil.ui.LockActivity
+import xyz.quaver.pupil.util.Lock
+import xyz.quaver.pupil.util.LockManager
+
+class LockSettingsFragment :
+    PreferenceFragmentCompat() {
+
+    override fun onResume() {
+        super.onResume()
+
+        val lockManager = LockManager(requireContext())
+
+        findPreference<Preference>("lock_pattern")?.summary =
+            if (lockManager.contains(Lock.Type.PATTERN))
+                getString(R.string.settings_lock_enabled)
+            else
+                ""
+
+        findPreference<Preference>("lock_pin")?.summary =
+            if (lockManager.contains(Lock.Type.PIN))
+                getString(R.string.settings_lock_enabled)
+            else
+                ""
+
+        if (lockManager.isEmpty()) {
+            (findPreference<Preference>("lock_fingerprint") as SwitchPreferenceCompat).isChecked = false
+
+            PreferenceManager.getDefaultSharedPreferences(context).edit().putBoolean("lock_fingerprint", false).apply()
+        }
+    }
+
+    override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+        setPreferencesFromResource(R.xml.lock_preferences, rootKey)
+
+        with(findPreference<Preference>("lock_pattern")) {
+            this!!
+
+            if (LockManager(requireContext()).contains(Lock.Type.PATTERN))
+                summary = getString(R.string.settings_lock_enabled)
+
+            onPreferenceClickListener = Preference.OnPreferenceClickListener {
+                val lockManager = LockManager(requireContext())
+
+                if (lockManager.contains(Lock.Type.PATTERN)) {
+                    AlertDialog.Builder(requireContext()).apply {
+                        setTitle(R.string.warning)
+                        setMessage(R.string.settings_lock_remove_message)
+
+                        setPositiveButton(android.R.string.yes) { _, _ ->
+                            lockManager.remove(Lock.Type.PATTERN)
+                            onResume()
+                        }
+                        setNegativeButton(android.R.string.no) { _, _ -> }
+                    }.show()
+                } else {
+                    val intent = Intent(requireContext(), LockActivity::class.java).apply {
+                        putExtra("mode", "add_lock")
+                        putExtra("type", "pattern")
+                    }
+
+                    startActivity(intent)
+                }
+
+                true
+            }
+        }
+
+        with(findPreference<Preference>("lock_pin")) {
+            this!!
+
+            if (LockManager(requireContext()).contains(Lock.Type.PIN))
+                summary = getString(R.string.settings_lock_enabled)
+
+            onPreferenceClickListener = Preference.OnPreferenceClickListener {
+                val lockManager = LockManager(requireContext())
+
+                if (lockManager.contains(Lock.Type.PIN)) {
+                    AlertDialog.Builder(requireContext()).apply {
+                        setTitle(R.string.warning)
+                        setMessage(R.string.settings_lock_remove_message)
+
+                        setPositiveButton(android.R.string.yes) { _, _ ->
+                            lockManager.remove(Lock.Type.PIN)
+                            onResume()
+                        }
+                        setNegativeButton(android.R.string.no) { _, _ -> }
+                    }.show()
+                } else {
+                    val intent = Intent(requireContext(), LockActivity::class.java).apply {
+                        putExtra("mode", "add_lock")
+                        putExtra("type", "pin")
+                    }
+
+                    startActivity(intent)
+                }
+
+                true
+            }
+        }
+
+        with(findPreference<Preference>("lock_fingerprint")) {
+            this!!
+
+            setOnPreferenceChangeListener { _, newValue ->
+                this as SwitchPreferenceCompat
+
+                if (newValue == true && LockManager(requireContext()).isEmpty()) {
+                    isChecked = false
+
+                    Toast.makeText(requireContext(), R.string.settings_lock_fingerprint_without_lock, Toast.LENGTH_SHORT).show()
+                } else
+                    isChecked = newValue as Boolean
+
+                false
+            }
+        }
+    }
+}

app/src/main/java/xyz/quaver/pupil/ui/fragment/PINLockFragment.kt

@@ -0,0 +1,53 @@
+/*
+ *     Pupil, Hitomi.la viewer for Android
+ *     Copyright (C) 2020  tom5079
+ *
+ *     This program is free software: you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation, either version 3 of the License, or
+ *     (at your option) any later version.
+ *
+ *     This program is distributed in the hope that it will be useful,
+ *     but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *     GNU General Public License for more details.
+ *
+ *     You should have received a copy of the GNU General Public License
+ *     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package xyz.quaver.pupil.ui.fragment
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.Fragment
+import com.andrognito.pinlockview.PinLockListener
+import kotlinx.android.synthetic.main.fragment_pin_lock.view.*
+import xyz.quaver.pupil.R
+
+class PINLockFragment : Fragment(), PinLockListener {
+
+    var onPINEntered: ((String) -> Unit)? = null
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater.inflate(R.layout.fragment_pin_lock, container, false).apply {
+            pin_lock_view.attachIndicatorDots(indicator_dots)
+            pin_lock_view.setPinLockListener(this@PINLockFragment)
+        }
+    }
+
+    override fun onComplete(pin: String?) {
+        onPINEntered?.invoke(pin!!)
+    }
+
+    override fun onEmpty() {
+
+    }
+
+    override fun onPinChange(pinLength: Int, intermediatePin: String?) {
+
+    }
+
+}

app/src/main/java/xyz/quaver/pupil/ui/fragment/SettingsFragment.kt

@@ -56,13 +56,13 @@ class SettingsFragment :
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
-        PreferenceManager.getDefaultSharedPreferences(context).registerOnSharedPreferenceChangeListener(this)
+        PreferenceManager.getDefaultSharedPreferences(requireContext()).registerOnSharedPreferenceChangeListener(this)
     }
 
     override fun onResume() {
         super.onResume()
 
-        val lockManager = LockManager(context!!)
+        val lockManager = LockManager(requireContext())
 
         findPreference<Preference>("app_lock")?.summary = if (lockManager.locks.isNullOrEmpty()) {
             getString(R.string.settings_lock_none)
@@ -92,9 +92,9 @@ class SettingsFragment :
                     checkUpdate(activity as SettingsActivity, true)
                 }
                 "delete_cache" -> {
-                    val dir = File(context.cacheDir, "imageCache")
+                    val dir = File(requireContext().cacheDir, "imageCache")
 
-                    AlertDialog.Builder(context).apply {
+                    AlertDialog.Builder(requireContext()).apply {
                         setTitle(R.string.warning)
                         setMessage(R.string.settings_clear_cache_alert_message)
                         setPositiveButton(android.R.string.yes) { _, _ ->
@@ -107,9 +107,9 @@ class SettingsFragment :
                     }.show()
                 }
                 "delete_downloads" -> {
-                    val dir = getDownloadDirectory(context)
+                    val dir = getDownloadDirectory(requireContext())
 
-                    AlertDialog.Builder(context).apply {
+                    AlertDialog.Builder(requireContext()).apply {
                         setTitle(R.string.warning)
                         setMessage(R.string.settings_clear_downloads_alert_message)
                         setPositiveButton(android.R.string.yes) { _, _ ->
@@ -122,9 +122,9 @@ class SettingsFragment :
                     }.show()
                 }
                 "clear_history" -> {
-                    val histories = (context.applicationContext as Pupil).histories
+                    val histories = (requireContext().applicationContext as Pupil).histories
 
-                    AlertDialog.Builder(context).apply {
+                    AlertDialog.Builder(requireContext()).apply {
                         setTitle(R.string.warning)
                         setMessage(R.string.settings_clear_history_alert_message)
                         setPositiveButton(android.R.string.yes) { _, _ ->
@@ -135,10 +135,10 @@ class SettingsFragment :
                     }.show()
                 }
                 "dl_location" -> {
-                    DownloadLocationDialog(activity!!).show()
+                    DownloadLocationDialog(requireActivity()).show()
                 }
                 "default_query" -> {
-                    DefaultQueryDialog(context).apply {
+                    DefaultQueryDialog(requireContext()).apply {
                         onPositiveButtonClickListener = { newTags ->
                             sharedPreferences.edit().putString("default_query", newTags.toString()).apply()
                             summary = newTags.toString()
@@ -146,20 +146,20 @@ class SettingsFragment :
                     }.show()
                 }
                 "app_lock" -> {
-                    val intent = Intent(context, LockActivity::class.java)
+                    val intent = Intent(requireContext(), LockActivity::class.java)
                     activity?.startActivityForResult(intent, REQUEST_LOCK)
                 }
                 "mirrors" -> {
-                    MirrorDialog(context)
+                    MirrorDialog(requireContext())
                         .show()
                 }
                 "proxy" -> {
-                    ProxyDialog(context)
+                    ProxyDialog(requireContext())
                         .show()
                 }
                 "backup" -> {
-                    File(ContextCompat.getDataDir(context), "favorites.json").copyTo(
+                    File(ContextCompat.getDataDir(requireContext()), "favorites.json").copyTo(
-                        File(getDownloadDirectory(context), "favorites.json"),
+                        File(getDownloadDirectory(requireContext()), "favorites.json"),
                         true
                     )
 
@@ -177,8 +177,8 @@ class SettingsFragment :
                 "old_import_galleries" -> {
                     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
 
-                        if (ContextCompat.checkSelfPermission(context, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)
+                        if (ContextCompat.checkSelfPermission(requireContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)
-                            ActivityCompat.requestPermissions(activity!!, arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), REQUEST_WRITE_PERMISSION_AND_SAF)
+                            ActivityCompat.requestPermissions(requireActivity(), arrayOf(Manifest.permission.WRITE_EXTERNAL_STORAGE), REQUEST_WRITE_PERMISSION_AND_SAF)
                         else {
                             val intent = Intent(Intent.ACTION_OPEN_DOCUMENT_TREE).apply {
                                 putExtra("android.content.extra.SHOW_ADVANCED", true)
@@ -192,7 +192,7 @@ class SettingsFragment :
                             .allowNewDirectoryNameModification(true)
                             .build()
 
-                        val intent = Intent(context, DirectoryChooserActivity::class.java).apply {
+                        val intent = Intent(requireContext(), DirectoryChooserActivity::class.java).apply {
                             putExtra(DirectoryChooserActivity.EXTRA_CONFIG, config)
                         }
 
@@ -232,10 +232,10 @@ class SettingsFragment :
 
             when (key) {
                 "proxy" -> {
-                    summary = getProxyInfo(context).type.name
+                    summary = getProxyInfo(requireContext()).type.name
                 }
                 "dl_location" -> {
-                    summary = getDownloadDirectory(context!!).canonicalPath
+                    summary = getDownloadDirectory(requireContext()).canonicalPath
                 }
             }
         }
@@ -260,42 +260,42 @@ class SettingsFragment :
 
                     when (key) {
                         "app_version" -> {
-                            val manager = context.packageManager
+                            val manager = requireContext().packageManager
-                            val info = manager.getPackageInfo(context.packageName, 0)
+                            val info = manager.getPackageInfo(requireContext().packageName, 0)
-                            summary = context.getString(R.string.settings_app_version_description, info.versionName)
+                            summary = requireContext().getString(R.string.settings_app_version_description, info.versionName)
 
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "delete_cache" -> {
-                            val dir = File(context.cacheDir, "imageCache")
+                            val dir = File(requireContext().cacheDir, "imageCache")
                             summary = getDirSize(dir)
 
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "delete_downloads" -> {
-                            val dir = getDownloadDirectory(context)
+                            val dir = getDownloadDirectory(requireContext())
                             summary = getDirSize(dir)
 
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "clear_history" -> {
-                            val histories = (activity!!.application as Pupil).histories
+                            val histories = (requireActivity().application as Pupil).histories
                             summary = getString(R.string.settings_clear_history_summary, histories.size)
 
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "dl_location" -> {
-                            summary = getDownloadDirectory(context).canonicalPath
+                            summary = getDownloadDirectory(requireContext()).canonicalPath
 
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "default_query" -> {
-                            summary = PreferenceManager.getDefaultSharedPreferences(context).getString("default_query", "") ?: ""
+                            summary = PreferenceManager.getDefaultSharedPreferences(requireContext()).getString("default_query", "") ?: ""
 
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "app_lock" -> {
-                            val lockManager = LockManager(context)
+                            val lockManager = LockManager(requireContext())
                             summary =
                                 if (lockManager.locks.isNullOrEmpty()) {
                                     getString(R.string.settings_lock_none)
@@ -315,7 +315,7 @@ class SettingsFragment :
                             onPreferenceClickListener = this@SettingsFragment
                         }
                         "proxy" -> {
-                            summary = getProxyInfo(context).type.name
+                            summary = getProxyInfo(requireContext()).type.name
 
                             onPreferenceClickListener = this@SettingsFragment
                         }

app/src/main/res/anim/shake.xml

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2020  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<translate xmlns:android="http://schemas.android.com/apk/res/android"
+    android:duration="300"
+    android:fromXDelta="0"
+    android:interpolator="@anim/shake_cycle"
+    android:toXDelta="10" />

app/src/main/res/anim/shake_cycle.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2020  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<cycleInterpolator xmlns:android="http://schemas.android.com/apk/res/android"
+    android:cycles="3" />

app/src/main/res/color/lock_fab.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2020  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_enabled="false" android:color="@android:color/darker_gray"/>
+    <item android:color="@color/colorPrimary"/>
+</selector>

app/src/main/res/drawable/backspace_outline.xml

@@ -0,0 +1,8 @@
+<!-- drawable/backspace_outline.xml -->
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:height="24dp"
+    android:width="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path android:fillColor="#000" android:pathData="M19,15.59L17.59,17L14,13.41L10.41,17L9,15.59L12.59,12L9,8.41L10.41,7L14,10.59L17.59,7L19,8.41L15.41,12L19,15.59M22,3A2,2 0 0,1 24,5V19A2,2 0 0,1 22,21H7C6.31,21 5.77,20.64 5.41,20.11L0,12L5.41,3.88C5.77,3.35 6.31,3 7,3H22M22,5H7L2.28,12L7,19H22V5Z" />
+</vector>

app/src/main/res/drawable/fingerprint.xml

@@ -4,5 +4,5 @@
     android:width="24dp"
     android:viewportWidth="24"
     android:viewportHeight="24">
-    <path android:fillColor="#000" android:pathData="M17.81,4.47C17.73,4.47 17.65,4.45 17.58,4.41C15.66,3.42 14,3 12,3C10.03,3 8.15,3.47 6.44,4.41C6.2,4.54 5.9,4.45 5.76,4.21C5.63,3.97 5.72,3.66 5.96,3.53C7.82,2.5 9.86,2 12,2C14.14,2 16,2.47 18.04,3.5C18.29,3.65 18.38,3.95 18.25,4.19C18.16,4.37 18,4.47 17.81,4.47M3.5,9.72C3.4,9.72 3.3,9.69 3.21,9.63C3,9.47 2.93,9.16 3.09,8.93C4.08,7.53 5.34,6.43 6.84,5.66C10,4.04 14,4.03 17.15,5.65C18.65,6.42 19.91,7.5 20.9,8.9C21.06,9.12 21,9.44 20.78,9.6C20.55,9.76 20.24,9.71 20.08,9.5C19.18,8.22 18.04,7.23 16.69,6.54C13.82,5.07 10.15,5.07 7.29,6.55C5.93,7.25 4.79,8.25 3.89,9.5C3.81,9.65 3.66,9.72 3.5,9.72M9.75,21.79C9.62,21.79 9.5,21.74 9.4,21.64C8.53,20.77 8.06,20.21 7.39,19C6.7,17.77 6.34,16.27 6.34,14.66C6.34,11.69 8.88,9.27 12,9.27C15.12,9.27 17.66,11.69 17.66,14.66A0.5,0.5 0 0,1 17.16,15.16A0.5,0.5 0 0,1 16.66,14.66C16.66,12.24 14.57,10.27 12,10.27C9.43,10.27 7.34,12.24 7.34,14.66C7.34,16.1 7.66,17.43 8.27,18.5C8.91,19.66 9.35,20.15 10.12,20.93C10.31,21.13 10.31,21.44 10.12,21.64C10,21.74 9.88,21.79 9.75,21.79M16.92,19.94C15.73,19.94 14.68,19.64 13.82,19.05C12.33,18.04 11.44,16.4 11.44,14.66A0.5,0.5 0 0,1 11.94,14.16A0.5,0.5 0 0,1 12.44,14.66C12.44,16.07 13.16,17.4 14.38,18.22C15.09,18.7 15.92,18.93 16.92,18.93C17.16,18.93 17.56,18.9 17.96,18.83C18.23,18.78 18.5,18.96 18.54,19.24C18.59,19.5 18.41,19.77 18.13,19.82C17.56,19.93 17.06,19.94 16.92,19.94M14.91,22C14.87,22 14.82,22 14.78,22C13.19,21.54 12.15,20.95 11.06,19.88C9.66,18.5 8.89,16.64 8.89,14.66C8.89,13.04 10.27,11.72 11.97,11.72C13.67,11.72 15.05,13.04 15.05,14.66C15.05,15.73 16,16.6 17.13,16.6C18.28,16.6 19.21,15.73 19.21,14.66C19.21,10.89 15.96,7.83 11.96,7.83C9.12,7.83 6.5,9.41 5.35,11.86C4.96,12.67 4.76,13.62 4.76,14.66C4.76,15.44 4.83,16.67 5.43,18.27C5.53,18.53 5.4,18.82 5.14,18.91C4.88,19 4.59,18.87 4.5,18.62C4,17.31 3.77,16 3.77,14.66C3.77,13.46 4,12.37 4.45,11.42C5.78,8.63 8.73,6.82 11.96,6.82C16.5,6.82 20.21,10.33 20.21,14.65C20.21,16.27 18.83,17.59 17.13,17.59C15.43,17.59 14.05,16.27 14.05,14.65C14.05,13.58 13.12,12.71 11.97,12.71C10.82,12.71 9.89,13.58 9.89,14.65C9.89,16.36 10.55,17.96 11.76,19.16C12.71,20.1 13.62,20.62 15.03,21C15.3,21.08 15.45,21.36 15.38,21.62C15.33,21.85 15.12,22 14.91,22Z" />
+    <path android:fillColor="#fff" android:pathData="M17.81,4.47C17.73,4.47 17.65,4.45 17.58,4.41C15.66,3.42 14,3 12,3C10.03,3 8.15,3.47 6.44,4.41C6.2,4.54 5.9,4.45 5.76,4.21C5.63,3.97 5.72,3.66 5.96,3.53C7.82,2.5 9.86,2 12,2C14.14,2 16,2.47 18.04,3.5C18.29,3.65 18.38,3.95 18.25,4.19C18.16,4.37 18,4.47 17.81,4.47M3.5,9.72C3.4,9.72 3.3,9.69 3.21,9.63C3,9.47 2.93,9.16 3.09,8.93C4.08,7.53 5.34,6.43 6.84,5.66C10,4.04 14,4.03 17.15,5.65C18.65,6.42 19.91,7.5 20.9,8.9C21.06,9.12 21,9.44 20.78,9.6C20.55,9.76 20.24,9.71 20.08,9.5C19.18,8.22 18.04,7.23 16.69,6.54C13.82,5.07 10.15,5.07 7.29,6.55C5.93,7.25 4.79,8.25 3.89,9.5C3.81,9.65 3.66,9.72 3.5,9.72M9.75,21.79C9.62,21.79 9.5,21.74 9.4,21.64C8.53,20.77 8.06,20.21 7.39,19C6.7,17.77 6.34,16.27 6.34,14.66C6.34,11.69 8.88,9.27 12,9.27C15.12,9.27 17.66,11.69 17.66,14.66A0.5,0.5 0 0,1 17.16,15.16A0.5,0.5 0 0,1 16.66,14.66C16.66,12.24 14.57,10.27 12,10.27C9.43,10.27 7.34,12.24 7.34,14.66C7.34,16.1 7.66,17.43 8.27,18.5C8.91,19.66 9.35,20.15 10.12,20.93C10.31,21.13 10.31,21.44 10.12,21.64C10,21.74 9.88,21.79 9.75,21.79M16.92,19.94C15.73,19.94 14.68,19.64 13.82,19.05C12.33,18.04 11.44,16.4 11.44,14.66A0.5,0.5 0 0,1 11.94,14.16A0.5,0.5 0 0,1 12.44,14.66C12.44,16.07 13.16,17.4 14.38,18.22C15.09,18.7 15.92,18.93 16.92,18.93C17.16,18.93 17.56,18.9 17.96,18.83C18.23,18.78 18.5,18.96 18.54,19.24C18.59,19.5 18.41,19.77 18.13,19.82C17.56,19.93 17.06,19.94 16.92,19.94M14.91,22C14.87,22 14.82,22 14.78,22C13.19,21.54 12.15,20.95 11.06,19.88C9.66,18.5 8.89,16.64 8.89,14.66C8.89,13.04 10.27,11.72 11.97,11.72C13.67,11.72 15.05,13.04 15.05,14.66C15.05,15.73 16,16.6 17.13,16.6C18.28,16.6 19.21,15.73 19.21,14.66C19.21,10.89 15.96,7.83 11.96,7.83C9.12,7.83 6.5,9.41 5.35,11.86C4.96,12.67 4.76,13.62 4.76,14.66C4.76,15.44 4.83,16.67 5.43,18.27C5.53,18.53 5.4,18.82 5.14,18.91C4.88,19 4.59,18.87 4.5,18.62C4,17.31 3.77,16 3.77,14.66C3.77,13.46 4,12.37 4.45,11.42C5.78,8.63 8.73,6.82 11.96,6.82C16.5,6.82 20.21,10.33 20.21,14.65C20.21,16.27 18.83,17.59 17.13,17.59C15.43,17.59 14.05,16.27 14.05,14.65C14.05,13.58 13.12,12.71 11.97,12.71C10.82,12.71 9.89,13.58 9.89,14.65C9.89,16.36 10.55,17.96 11.76,19.16C12.71,20.1 13.62,20.62 15.03,21C15.3,21.08 15.45,21.36 15.38,21.62C15.33,21.85 15.12,22 14.91,22Z" />
 </vector>

app/src/main/res/drawable/lastpass.xml

@@ -4,5 +4,5 @@
     android:width="24dp"
     android:viewportWidth="24"
     android:viewportHeight="24">
-    <path android:fillColor="#000" android:pathData="M14,12A2,2 0 0,1 16,10A2,2 0 0,1 18,12A2,2 0 0,1 16,14A2,2 0 0,1 14,12M8,12A2,2 0 0,1 10,10A2,2 0 0,1 12,12A2,2 0 0,1 10,14A2,2 0 0,1 8,12M2,12A2,2 0 0,1 4,10A2,2 0 0,1 6,12A2,2 0 0,1 4,14A2,2 0 0,1 2,12M22,5H20V19H22V5Z" />
+    <path android:fillColor="#fff" android:pathData="M14,12A2,2 0 0,1 16,10A2,2 0 0,1 18,12A2,2 0 0,1 16,14A2,2 0 0,1 14,12M8,12A2,2 0 0,1 10,10A2,2 0 0,1 12,12A2,2 0 0,1 10,14A2,2 0 0,1 8,12M2,12A2,2 0 0,1 4,10A2,2 0 0,1 6,12A2,2 0 0,1 4,14A2,2 0 0,1 2,12M22,5H20V19H22V5Z" />
 </vector>

app/src/main/res/drawable/lock_pattern.xml

@@ -4,5 +4,5 @@
     android:width="24dp"
     android:viewportWidth="24"
     android:viewportHeight="24">
-    <path android:fillColor="#000" android:pathData="M7,3A4,4 0 0,1 11,7C11,8.86 9.73,10.43 8,10.87V13.13C8.37,13.22 8.72,13.37 9.04,13.56L13.56,9.04C13.2,8.44 13,7.75 13,7A4,4 0 0,1 17,3A4,4 0 0,1 21,7A4,4 0 0,1 17,11C16.26,11 15.57,10.8 15,10.45L10.45,15C10.8,15.57 11,16.26 11,17A4,4 0 0,1 7,21A4,4 0 0,1 3,17C3,15.14 4.27,13.57 6,13.13V10.87C4.27,10.43 3,8.86 3,7A4,4 0 0,1 7,3M17,13A4,4 0 0,1 21,17A4,4 0 0,1 17,21A4,4 0 0,1 13,17A4,4 0 0,1 17,13M17,15A2,2 0 0,0 15,17A2,2 0 0,0 17,19A2,2 0 0,0 19,17A2,2 0 0,0 17,15Z" />
+    <path android:fillColor="#fff" android:pathData="M7,3A4,4 0 0,1 11,7C11,8.86 9.73,10.43 8,10.87V13.13C8.37,13.22 8.72,13.37 9.04,13.56L13.56,9.04C13.2,8.44 13,7.75 13,7A4,4 0 0,1 17,3A4,4 0 0,1 21,7A4,4 0 0,1 17,11C16.26,11 15.57,10.8 15,10.45L10.45,15C10.8,15.57 11,16.26 11,17A4,4 0 0,1 7,21A4,4 0 0,1 3,17C3,15.14 4.27,13.57 6,13.13V10.87C4.27,10.43 3,8.86 3,7A4,4 0 0,1 7,3M17,13A4,4 0 0,1 21,17A4,4 0 0,1 17,21A4,4 0 0,1 13,17A4,4 0 0,1 17,13M17,15A2,2 0 0,0 15,17A2,2 0 0,0 17,19A2,2 0 0,0 19,17A2,2 0 0,0 17,15Z" />
 </vector>

app/src/main/res/drawable/pin_filled.xml

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2020  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="oval">
+    <solid android:color="@color/colorAccent" />
+</shape>

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

@@ -36,7 +36,6 @@
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_marginTop="16dp"
-        android:layout_marginBottom="32dp"
         android:gravity="center"
         app:layout_constraintTop_toBottomOf="@id/lock_content"
         app:layout_constraintBottom_toTopOf="@id/lock_button_layout">
@@ -46,9 +45,10 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             app:srcCompat="@drawable/fingerprint"
+            app:backgroundTint="@color/lock_fab"
             android:layout_marginLeft="8dp"
             android:layout_marginRight="8dp"
-            app:backgroundTint="@color/dark_gray"
+            app:tint="@null"
             app:fabSize="mini"/>
 
     </LinearLayout>
@@ -67,26 +67,29 @@
             android:id="@+id/lock_pattern"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            app:tint="@null"
             app:srcCompat="@drawable/lock_pattern"
-            app:backgroundTint="@color/colorPrimary"
+            app:backgroundTint="@color/lock_fab"
             app:fabSize="mini"/>
 
         <com.google.android.material.floatingactionbutton.FloatingActionButton
             android:id="@+id/lock_pin"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            app:tint="@null"
             app:srcCompat="@drawable/numeric"
+            app:backgroundTint="@color/lock_fab"
             android:layout_marginLeft="8dp"
             android:layout_marginRight="8dp"
-            app:backgroundTint="@color/dark_gray"
             app:fabSize="mini"/>
 
         <com.google.android.material.floatingactionbutton.FloatingActionButton
             android:id="@+id/lock_password"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
+            app:tint="@null"
             app:srcCompat="@drawable/lastpass"
-            app:backgroundTint="@color/dark_gray"
+            app:backgroundTint="@color/lock_fab"
             app:fabSize="mini"/>
 
     </LinearLayout>

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

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~     Pupil, Hitomi.la viewer for Android
+  ~     Copyright (C) 2020  tom5079
+  ~
+  ~     This program is free software: you can redistribute it and/or modify
+  ~     it under the terms of the GNU General Public License as published by
+  ~     the Free Software Foundation, either version 3 of the License, or
+  ~     (at your option) any later version.
+  ~
+  ~     This program is distributed in the hope that it will be useful,
+  ~     but WITHOUT ANY WARRANTY; without even the implied warranty of
+  ~     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  ~     GNU General Public License for more details.
+  ~
+  ~     You should have received a copy of the GNU General Public License
+  ~     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+  -->
+
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:paddingTop="100dp">
+
+    <com.andrognito.pinlockview.IndicatorDots
+        android:id="@+id/indicator_dots"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center_horizontal|top"
+        app:dotFilledBackground="@drawable/pin_filled"/>
+
+    <com.andrognito.pinlockview.PinLockView
+        android:id="@+id/pin_lock_view"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        app:keypadTextColor="?android:attr/textColorPrimary"
+        android:layout_gravity="center_horizontal|bottom"
+        app:keypadDeleteButtonDrawable="@drawable/backspace_outline"
+        app:keypadShowDeleteButton="true"/>
+
+</FrameLayout>

app/src/main/res/values-ja/strings.xml

@@ -141,4 +141,7 @@
     <string name="import_old_galleries_notification">旧ギャラリーインポート中…</string>
     <string name="import_old_galleries_notification_done">インポート完了</string>
     <string name="main_fab_random">ランダムギャラリーを開く</string>
+    <string name="settings_lock_fingerprint_without_lock">予備のロックが設定されていないと指紋ロックは使用できません</string>
+    <string name="settings_lock_fingerprint_prompt">Pupil指紋ロック™</string>
+    <string name="settings_lock_fingerprint_prompt_subtitle">こうかはばつぐんだ!</string>
 </resources>

app/src/main/res/values-ko/strings.xml

@@ -141,4 +141,7 @@
     <string name="import_old_galleries_notification">이전 버전 갤러리 가져오는 중…</string>
     <string name="import_old_galleries_notification_done">가져오기 완료</string>
     <string name="main_fab_random">무작위 갤러리 열기</string>
+    <string name="settings_lock_fingerprint_without_lock">지문 잠금은 다른 잠금 방식이 활성화 되어 있을 때만 사용 가능합니다</string>
+    <string name="settings_lock_fingerprint_prompt">Pupil 지문 인식™</string>
+    <string name="settings_lock_fingerprint_prompt_subtitle">힘세고 강한 지문 인식</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -188,6 +188,8 @@
     <string name="settings_lock_password">Password</string>
     <string name="settings_lock_biometrics">Biometrics</string>
     <string name="settings_lock_fingerprint">Fingerprint</string>
+    <string name="settings_lock_fingerprint_without_lock">Fingerprint can be only enabled if one of the other locks are enabled</string>
+    <string name="settings_lock_fingerprint_prompt">Pupil Fingerprint Lock™</string>
     <string name="settings_lock_enabled">Enabled</string>
     <string name="settings_lock_confirm">Input same lock once more to confirm Lock</string>
     <string name="settings_lock_remove_message">Do you want to remove lock?</string>
@@ -216,5 +218,6 @@
     <string name="import_old_galleries_notification">Importing old galleries…</string>
     <string name="import_old_galleries_notification_text" translatable="false">%1$d/%2$d</string>
     <string name="import_old_galleries_notification_done">Importing completed</string>
+    <string name="settings_lock_fingerprint_prompt_subtitle">Ah Shit, Here we go again</string>
 
 </resources>

app/src/main/res/xml/lock_preferences.xml

@@ -17,7 +17,7 @@
     <PreferenceCategory
         app:title="@string/settings_lock_biometrics">
 
-        <Preference
+        <SwitchPreferenceCompat
             app:title="@string/settings_lock_fingerprint"
             app:key="lock_fingerprint"/>