├── app
    ├── .gitignore
    ├── src
    │   ├── main
    │   │   ├── res
    │   │   │   ├── values
    │   │   │   │   ├── dimens.xml
    │   │   │   │   ├── colors.xml
    │   │   │   │   ├── strings.xml
    │   │   │   │   └── styles.xml
    │   │   │   ├── mipmap-hdpi
    │   │   │   │   ├── ic_launcher.png
    │   │   │   │   └── ic_launcher_round.png
    │   │   │   ├── mipmap-mdpi
    │   │   │   │   ├── ic_launcher.png
    │   │   │   │   └── ic_launcher_round.png
    │   │   │   ├── mipmap-xhdpi
    │   │   │   │   ├── ic_launcher.png
    │   │   │   │   └── ic_launcher_round.png
    │   │   │   ├── mipmap-xxhdpi
    │   │   │   │   ├── ic_launcher.png
    │   │   │   │   └── ic_launcher_round.png
    │   │   │   ├── mipmap-xxxhdpi
    │   │   │   │   ├── ic_launcher.png
    │   │   │   │   └── ic_launcher_round.png
    │   │   │   ├── mipmap-anydpi-v26
    │   │   │   │   ├── ic_launcher.xml
    │   │   │   │   └── ic_launcher_round.xml
    │   │   │   ├── drawable
    │   │   │   │   ├── ic_check_white_24dp.xml
    │   │   │   │   ├── ic_error_white_24dp.xml
    │   │   │   │   ├── ic_fingerprint_white_24dp.xml
    │   │   │   │   └── ic_launcher_background.xml
    │   │   │   ├── menu
    │   │   │   │   └── menu_main.xml
    │   │   │   ├── layout
    │   │   │   │   ├── content_main.xml
    │   │   │   │   ├── activity_main.xml
    │   │   │   │   └── dialog_fingerprint.xml
    │   │   │   └── drawable-v24
    │   │   │   │   └── ic_launcher_foreground.xml
    │   │   ├── AndroidManifest.xml
    │   │   └── java
    │   │   │   └── com
    │   │   │       └── androidessence
    │   │   │           └── fingerprintdialogsample
    │   │   │               ├── MainActivity.kt
    │   │   │               ├── FingerprintController.kt
    │   │   │               └── FingerprintDialog.kt
    │   ├── test
    │   │   └── java
    │   │   │   └── com
    │   │   │       └── androidessence
    │   │   │           └── fingerprintdialogsample
    │   │   │               └── ExampleUnitTest.kt
    │   └── androidTest
    │   │   └── java
    │   │       └── com
    │   │           └── androidessence
    │   │               └── fingerprintdialogsample
    │   │                   └── ExampleInstrumentedTest.kt
    ├── proguard-rules.pro
    └── build.gradle
├── settings.gradle
├── gradle
    └── wrapper
    │   ├── gradle-wrapper.jar
    │   └── gradle-wrapper.properties
├── .gitignore
├── gradle.properties
├── gradlew.bat
└── gradlew


/app/.gitignore:
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1 | /build
2 | 


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/settings.gradle:
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1 | include ':app'
2 | 


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/app/src/main/res/values/dimens.xml:
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1 | <resources>
2 |     <dimen name="fab_margin">16dp</dimen>
3 | </resources>
4 | 


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/gradle/wrapper/gradle-wrapper.jar:
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https://raw.githubusercontent.com/androidessence/FingerprintDialogSample/HEAD/gradle/wrapper/gradle-wrapper.jar


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/app/src/main/res/mipmap-hdpi/ic_launcher.png:
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https://raw.githubusercontent.com/androidessence/FingerprintDialogSample/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher.png


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/app/src/main/res/mipmap-mdpi/ic_launcher.png:
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https://raw.githubusercontent.com/androidessence/FingerprintDialogSample/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher.png


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/app/src/main/res/mipmap-xhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/androidessence/FingerprintDialogSample/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher.png


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/app/src/main/res/mipmap-xxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/androidessence/FingerprintDialogSample/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher.png


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/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/androidessence/FingerprintDialogSample/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png


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/app/src/main/res/mipmap-hdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/androidessence/FingerprintDialogSample/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-mdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/androidessence/FingerprintDialogSample/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/androidessence/FingerprintDialogSample/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/androidessence/FingerprintDialogSample/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png


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/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png:
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https://raw.githubusercontent.com/androidessence/FingerprintDialogSample/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png


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/.gitignore:
--------------------------------------------------------------------------------
 1 | *.iml
 2 | .gradle
 3 | /local.properties
 4 | /.idea/workspace.xml
 5 | /.idea/libraries
 6 | .idea/
 7 | .DS_Store
 8 | /build
 9 | /captures
10 | .externalNativeBuild
11 | 


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/gradle/wrapper/gradle-wrapper.properties:
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1 | #Sat Dec 30 16:03:13 EST 2017
2 | distributionBase=GRADLE_USER_HOME
3 | distributionPath=wrapper/dists
4 | zipStoreBase=GRADLE_USER_HOME
5 | zipStorePath=wrapper/dists
6 | distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
7 | 


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/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml:
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1 | <?xml version="1.0" encoding="utf-8"?>
2 | <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
3 |     <background android:drawable="@drawable/ic_launcher_background" />
4 |     <foreground android:drawable="@drawable/ic_launcher_foreground" />
5 | </adaptive-icon>


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/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml:
--------------------------------------------------------------------------------
1 | <?xml version="1.0" encoding="utf-8"?>
2 | <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
3 |     <background android:drawable="@drawable/ic_launcher_background" />
4 |     <foreground android:drawable="@drawable/ic_launcher_foreground" />
5 | </adaptive-icon>


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/app/src/main/res/drawable/ic_check_white_24dp.xml:
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 1 | <vector xmlns:android="http://schemas.android.com/apk/res/android"
 2 |         android:width="24dp"
 3 |         android:height="24dp"
 4 |         android:viewportWidth="24.0"
 5 |         android:viewportHeight="24.0">
 6 |     <path
 7 |         android:fillColor="#FFFFFF"
 8 |         android:pathData="M9,16.17L4.83,12l-1.42,1.41L9,19 21,7l-1.41,-1.41z"/>
 9 | </vector>
10 | 


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/app/src/main/res/values/colors.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <resources>
 3 |     <color name="colorPrimary">#3F51B5</color>
 4 |     <color name="colorPrimaryDark">#303F9F</color>
 5 |     <color name="colorAccent">#FF4081</color>
 6 |     <color name="warning_color">#F44336</color>
 7 |     <color name="hint_color">#000000</color>
 8 |     <color name="success_color">#4CAF50</color>
 9 | </resources>
10 | 


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/app/src/main/res/menu/menu_main.xml:
--------------------------------------------------------------------------------
 1 | <menu xmlns:android="http://schemas.android.com/apk/res/android"
 2 |     xmlns:app="http://schemas.android.com/apk/res-auto"
 3 |     xmlns:tools="http://schemas.android.com/tools"
 4 |     tools:context="com.androidessence.fingerprintdialogsample.MainActivity">
 5 |     <item
 6 |         android:id="@+id/action_settings"
 7 |         android:orderInCategory="100"
 8 |         android:title="@string/action_settings"
 9 |         app:showAsAction="never" />
10 | </menu>
11 | 


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/app/src/test/java/com/androidessence/fingerprintdialogsample/ExampleUnitTest.kt:
--------------------------------------------------------------------------------
 1 | package com.androidessence.fingerprintdialogsample
 2 | 
 3 | import org.junit.Test
 4 | 
 5 | import org.junit.Assert.*
 6 | 
 7 | /**
 8 |  * Example local unit test, which will execute on the development machine (host).
 9 |  *
10 |  * See [testing documentation](http://d.android.com/tools/testing).
11 |  */
12 | class ExampleUnitTest {
13 |     @Test
14 |     fun addition_isCorrect() {
15 |         assertEquals(4, 2 + 2)
16 |     }
17 | }
18 | 


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/app/src/main/res/drawable/ic_error_white_24dp.xml:
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 1 | <vector xmlns:android="http://schemas.android.com/apk/res/android"
 2 |         android:width="24dp"
 3 |         android:height="24dp"
 4 |         android:viewportWidth="24.0"
 5 |         android:viewportHeight="24.0">
 6 |     <path
 7 |         android:fillColor="#FFFFFF"
 8 |         android:pathData="M11,15h2v2h-2zM11,7h2v6h-2zM11.99,2C6.47,2 2,6.48 2,12s4.47,10 9.99,10C17.52,22 22,17.52 22,12S17.52,2 11.99,2zM12,20c-4.42,0 -8,-3.58 -8,-8s3.58,-8 8,-8 8,3.58 8,8 -3.58,8 -8,8z"/>
 9 | </vector>
10 | 


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/app/src/main/res/values/strings.xml:
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 1 | <resources>
 2 |     <string name="app_name">Fingerprint Dialog Sample</string>
 3 |     <string name="action_settings">Settings</string>
 4 |     <string name="authenticate_instructions">Click the button below to authenticate your fingerprint.</string>
 5 |     <string name="cancel">Cancel</string>
 6 |     <string name="fingerprint_not_recognized">Fingerprint not recognized. Try again.</string>
 7 |     <string name="touch_sensor">Touch sensor.</string>
 8 |     <string name="fingerprint_recognized">Fingerprint recognized.</string>
 9 | </resources>
10 | 


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/gradle.properties:
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 1 | # Project-wide Gradle settings.
 2 | 
 3 | # IDE (e.g. Android Studio) users:
 4 | # Gradle settings configured through the IDE *will override*
 5 | # any settings specified in this file.
 6 | 
 7 | # For more details on how to configure your build environment visit
 8 | # http://www.gradle.org/docs/current/userguide/build_environment.html
 9 | 
10 | # Specifies the JVM arguments used for the daemon process.
11 | # The setting is particularly useful for tweaking memory settings.
12 | org.gradle.jvmargs=-Xmx1536m
13 | 
14 | # When configured, Gradle will run in incubating parallel mode.
15 | # This option should only be used with decoupled projects. More details, visit
16 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
17 | # org.gradle.parallel=true
18 | 


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/app/src/main/res/values/styles.xml:
--------------------------------------------------------------------------------
 1 | <resources>
 2 | 
 3 |     <!-- Base application theme. -->
 4 |     <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
 5 |         <!-- Customize your theme here. -->
 6 |         <item name="colorPrimary">@color/colorPrimary</item>
 7 |         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
 8 |         <item name="colorAccent">@color/colorAccent</item>
 9 |     </style>
10 | 
11 |     <style name="AppTheme.NoActionBar">
12 |         <item name="windowActionBar">false</item>
13 |         <item name="windowNoTitle">true</item>
14 |     </style>
15 | 
16 |     <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
17 | 
18 |     <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
19 | </resources>
20 | 


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/app/proguard-rules.pro:
--------------------------------------------------------------------------------
 1 | # Add project specific ProGuard rules here.
 2 | # You can control the set of applied configuration files using the
 3 | # proguardFiles setting in build.gradle.
 4 | #
 5 | # For more details, see
 6 | #   http://developer.android.com/guide/developing/tools/proguard.html
 7 | 
 8 | # If your project uses WebView with JS, uncomment the following
 9 | # and specify the fully qualified class name to the JavaScript interface
10 | # class:
11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview {
12 | #   public *;
13 | #}
14 | 
15 | # Uncomment this to preserve the line number information for
16 | # debugging stack traces.
17 | #-keepattributes SourceFile,LineNumberTable
18 | 
19 | # If you keep the line number information, uncomment this to
20 | # hide the original source file name.
21 | #-renamesourcefileattribute SourceFile
22 | 


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/app/src/androidTest/java/com/androidessence/fingerprintdialogsample/ExampleInstrumentedTest.kt:
--------------------------------------------------------------------------------
 1 | package com.androidessence.fingerprintdialogsample
 2 | 
 3 | import android.support.test.InstrumentationRegistry
 4 | import android.support.test.runner.AndroidJUnit4
 5 | 
 6 | import org.junit.Test
 7 | import org.junit.runner.RunWith
 8 | 
 9 | import org.junit.Assert.*
10 | 
11 | /**
12 |  * Instrumented test, which will execute on an Android device.
13 |  *
14 |  * See [testing documentation](http://d.android.com/tools/testing).
15 |  */
16 | @RunWith(AndroidJUnit4::class)
17 | class ExampleInstrumentedTest {
18 |     @Test
19 |     fun useAppContext() {
20 |         // Context of the app under test.
21 |         val appContext = InstrumentationRegistry.getTargetContext()
22 |         assertEquals("com.androidessence.fingerprintdialogsample", appContext.packageName)
23 |     }
24 | }
25 | 


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/app/src/main/AndroidManifest.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     package="com.androidessence.fingerprintdialogsample">
 4 | 
 5 |     <uses-permission android:name="android.permission.USE_FINGERPRINT" />
 6 | 
 7 |     <application
 8 |         android:allowBackup="true"
 9 |         android:icon="@mipmap/ic_launcher"
10 |         android:label="@string/app_name"
11 |         android:roundIcon="@mipmap/ic_launcher_round"
12 |         android:supportsRtl="true"
13 |         android:theme="@style/AppTheme">
14 |         <activity
15 |             android:name=".MainActivity"
16 |             android:label="@string/app_name"
17 |             android:theme="@style/AppTheme.NoActionBar">
18 |             <intent-filter>
19 |                 <action android:name="android.intent.action.MAIN" />
20 | 
21 |                 <category android:name="android.intent.category.LAUNCHER" />
22 |             </intent-filter>
23 |         </activity>
24 |     </application>
25 | 
26 | </manifest>


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/app/src/main/res/layout/content_main.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:app="http://schemas.android.com/apk/res-auto"
 4 |     xmlns:tools="http://schemas.android.com/tools"
 5 |     android:layout_width="match_parent"
 6 |     android:layout_height="match_parent"
 7 |     app:layout_behavior="@string/appbar_scrolling_view_behavior"
 8 |     tools:context="com.androidessence.fingerprintdialogsample.MainActivity"
 9 |     tools:showIn="@layout/activity_main">
10 | 
11 |     <TextView
12 |         android:layout_width="wrap_content"
13 |         android:layout_height="wrap_content"
14 |         android:text="@string/authenticate_instructions"
15 |         app:layout_constraintBottom_toBottomOf="parent"
16 |         app:layout_constraintLeft_toLeftOf="parent"
17 |         app:layout_constraintRight_toRightOf="parent"
18 |         app:layout_constraintTop_toTopOf="parent" />
19 | 
20 | </android.support.constraint.ConstraintLayout>
21 | 


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/app/build.gradle:
--------------------------------------------------------------------------------
 1 | apply plugin: 'com.android.application'
 2 | 
 3 | apply plugin: 'kotlin-android'
 4 | 
 5 | apply plugin: 'kotlin-android-extensions'
 6 | 
 7 | android {
 8 |     compileSdkVersion 26
 9 |     defaultConfig {
10 |         applicationId "com.androidessence.fingerprintdialogsample"
11 |         minSdkVersion 23
12 |         targetSdkVersion 26
13 |         versionCode 1
14 |         versionName "1.0"
15 |         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
16 |     }
17 |     buildTypes {
18 |         release {
19 |             minifyEnabled false
20 |             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
21 |         }
22 |     }
23 | }
24 | 
25 | dependencies {
26 |     implementation fileTree(dir: 'libs', include: ['*.jar'])
27 |     implementation"org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
28 |     implementation 'com.android.support:appcompat-v7:26.1.0'
29 |     implementation 'com.android.support.constraint:constraint-layout:1.0.2'
30 |     implementation 'com.android.support:design:26.1.0'
31 |     testImplementation 'junit:junit:4.12'
32 |     androidTestImplementation 'com.android.support.test:runner:1.0.1'
33 |     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
34 | }
35 | 


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/app/src/main/java/com/androidessence/fingerprintdialogsample/MainActivity.kt:
--------------------------------------------------------------------------------
 1 | package com.androidessence.fingerprintdialogsample
 2 | 
 3 | import android.os.Bundle
 4 | import android.support.design.widget.Snackbar
 5 | import android.support.v4.hardware.fingerprint.FingerprintManagerCompat
 6 | import android.support.v7.app.AppCompatActivity
 7 | 
 8 | import kotlinx.android.synthetic.main.activity_main.*
 9 | 
10 | class MainActivity : AppCompatActivity() {
11 | 
12 |     override fun onCreate(savedInstanceState: Bundle?) {
13 |         super.onCreate(savedInstanceState)
14 |         setContentView(R.layout.activity_main)
15 |         setSupportActionBar(toolbar)
16 | 
17 |         fab.setOnClickListener { view ->
18 |             val manager = FingerprintManagerCompat.from(this)
19 | 
20 |             if (manager.isHardwareDetected && manager.hasEnrolledFingerprints()) {
21 |                 showFingerprintAuth()
22 |             } else {
23 |                 Snackbar.make(view, "Fingerprint authentication is not supported.", Snackbar.LENGTH_SHORT).show()
24 |             }
25 |         }
26 |     }
27 | 
28 |     private fun showFingerprintAuth() {
29 |         val dialog = FingerprintDialog.newInstance(
30 |                 "Sign In",
31 |                 "Confirm fingerprint to continue."
32 |         )
33 |         dialog.show(supportFragmentManager, FingerprintDialog.FRAGMENT_TAG)
34 |     }
35 | }
36 | 


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/app/src/main/res/layout/activity_main.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:app="http://schemas.android.com/apk/res-auto"
 4 |     xmlns:tools="http://schemas.android.com/tools"
 5 |     android:layout_width="match_parent"
 6 |     android:layout_height="match_parent"
 7 |     tools:context="com.androidessence.fingerprintdialogsample.MainActivity">
 8 | 
 9 |     <android.support.design.widget.AppBarLayout
10 |         android:layout_width="match_parent"
11 |         android:layout_height="wrap_content"
12 |         android:theme="@style/AppTheme.AppBarOverlay">
13 | 
14 |         <android.support.v7.widget.Toolbar
15 |             android:id="@+id/toolbar"
16 |             android:layout_width="match_parent"
17 |             android:layout_height="?attr/actionBarSize"
18 |             android:background="?attr/colorPrimary"
19 |             app:popupTheme="@style/AppTheme.PopupOverlay" />
20 | 
21 |     </android.support.design.widget.AppBarLayout>
22 | 
23 |     <include layout="@layout/content_main" />
24 | 
25 |     <android.support.design.widget.FloatingActionButton
26 |         android:id="@+id/fab"
27 |         android:layout_width="wrap_content"
28 |         android:layout_height="wrap_content"
29 |         android:layout_gravity="bottom|end"
30 |         android:layout_margin="@dimen/fab_margin"
31 |         app:srcCompat="@drawable/ic_fingerprint_white_24dp" />
32 | 
33 | </android.support.design.widget.CoordinatorLayout>
34 | 


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/app/src/main/res/drawable-v24/ic_launcher_foreground.xml:
--------------------------------------------------------------------------------
 1 | <vector xmlns:android="http://schemas.android.com/apk/res/android"
 2 |     xmlns:aapt="http://schemas.android.com/aapt"
 3 |     android:width="108dp"
 4 |     android:height="108dp"
 5 |     android:viewportHeight="108"
 6 |     android:viewportWidth="108">
 7 |     <path
 8 |         android:fillType="evenOdd"
 9 |         android:pathData="M32,64C32,64 38.39,52.99 44.13,50.95C51.37,48.37 70.14,49.57 70.14,49.57L108.26,87.69L108,109.01L75.97,107.97L32,64Z"
10 |         android:strokeColor="#00000000"
11 |         android:strokeWidth="1">
12 |         <aapt:attr name="android:fillColor">
13 |             <gradient
14 |                 android:endX="78.5885"
15 |                 android:endY="90.9159"
16 |                 android:startX="48.7653"
17 |                 android:startY="61.0927"
18 |                 android:type="linear">
19 |                 <item
20 |                     android:color="#44000000"
21 |                     android:offset="0.0" />
22 |                 <item
23 |                     android:color="#00000000"
24 |                     android:offset="1.0" />
25 |             </gradient>
26 |         </aapt:attr>
27 |     </path>
28 |     <path
29 |         android:fillColor="#FFFFFF"
30 |         android:fillType="nonZero"
31 |         android:pathData="M66.94,46.02L66.94,46.02C72.44,50.07 76,56.61 76,64L32,64C32,56.61 35.56,50.11 40.98,46.06L36.18,41.19C35.45,40.45 35.45,39.3 36.18,38.56C36.91,37.81 38.05,37.81 38.78,38.56L44.25,44.05C47.18,42.57 50.48,41.71 54,41.71C57.48,41.71 60.78,42.57 63.68,44.05L69.11,38.56C69.84,37.81 70.98,37.81 71.71,38.56C72.44,39.3 72.44,40.45 71.71,41.19L66.94,46.02ZM62.94,56.92C64.08,56.92 65,56.01 65,54.88C65,53.76 64.08,52.85 62.94,52.85C61.8,52.85 60.88,53.76 60.88,54.88C60.88,56.01 61.8,56.92 62.94,56.92ZM45.06,56.92C46.2,56.92 47.13,56.01 47.13,54.88C47.13,53.76 46.2,52.85 45.06,52.85C43.92,52.85 43,53.76 43,54.88C43,56.01 43.92,56.92 45.06,56.92Z"
32 |         android:strokeColor="#00000000"
33 |         android:strokeWidth="1" />
34 | </vector>
35 | 


--------------------------------------------------------------------------------
/app/src/main/res/drawable/ic_fingerprint_white_24dp.xml:
--------------------------------------------------------------------------------
 1 | <vector xmlns:android="http://schemas.android.com/apk/res/android"
 2 |         android:width="24dp"
 3 |         android:height="24dp"
 4 |         android:viewportWidth="24.0"
 5 |         android:viewportHeight="24.0">
 6 |     <path
 7 |         android:fillColor="#FFFFFF"
 8 |         android:pathData="M17.81,4.47c-0.08,0 -0.16,-0.02 -0.23,-0.06C15.66,3.42 14,3 12.01,3c-1.98,0 -3.86,0.47 -5.57,1.41 -0.24,0.13 -0.54,0.04 -0.68,-0.2 -0.13,-0.24 -0.04,-0.55 0.2,-0.68C7.82,2.52 9.86,2 12.01,2c2.13,0 3.99,0.47 6.03,1.52 0.25,0.13 0.34,0.43 0.21,0.67 -0.09,0.18 -0.26,0.28 -0.44,0.28zM3.5,9.72c-0.1,0 -0.2,-0.03 -0.29,-0.09 -0.23,-0.16 -0.28,-0.47 -0.12,-0.7 0.99,-1.4 2.25,-2.5 3.75,-3.27C9.98,4.04 14,4.03 17.15,5.65c1.5,0.77 2.76,1.86 3.75,3.25 0.16,0.22 0.11,0.54 -0.12,0.7 -0.23,0.16 -0.54,0.11 -0.7,-0.12 -0.9,-1.26 -2.04,-2.25 -3.39,-2.94 -2.87,-1.47 -6.54,-1.47 -9.4,0.01 -1.36,0.7 -2.5,1.7 -3.4,2.96 -0.08,0.14 -0.23,0.21 -0.39,0.21zM9.75,21.79c-0.13,0 -0.26,-0.05 -0.35,-0.15 -0.87,-0.87 -1.34,-1.43 -2.01,-2.64 -0.69,-1.23 -1.05,-2.73 -1.05,-4.34 0,-2.97 2.54,-5.39 5.66,-5.39s5.66,2.42 5.66,5.39c0,0.28 -0.22,0.5 -0.5,0.5s-0.5,-0.22 -0.5,-0.5c0,-2.42 -2.09,-4.39 -4.66,-4.39 -2.57,0 -4.66,1.97 -4.66,4.39 0,1.44 0.32,2.77 0.93,3.85 0.64,1.15 1.08,1.64 1.85,2.42 0.19,0.2 0.19,0.51 0,0.71 -0.11,0.1 -0.24,0.15 -0.37,0.15zM16.92,19.94c-1.19,0 -2.24,-0.3 -3.1,-0.89 -1.49,-1.01 -2.38,-2.65 -2.38,-4.39 0,-0.28 0.22,-0.5 0.5,-0.5s0.5,0.22 0.5,0.5c0,1.41 0.72,2.74 1.94,3.56 0.71,0.48 1.54,0.71 2.54,0.71 0.24,0 0.64,-0.03 1.04,-0.1 0.27,-0.05 0.53,0.13 0.58,0.41 0.05,0.27 -0.13,0.53 -0.41,0.58 -0.57,0.11 -1.07,0.12 -1.21,0.12zM14.91,22c-0.04,0 -0.09,-0.01 -0.13,-0.02 -1.59,-0.44 -2.63,-1.03 -3.72,-2.1 -1.4,-1.39 -2.17,-3.24 -2.17,-5.22 0,-1.62 1.38,-2.94 3.08,-2.94 1.7,0 3.08,1.32 3.08,2.94 0,1.07 0.93,1.94 2.08,1.94s2.08,-0.87 2.08,-1.94c0,-3.77 -3.25,-6.83 -7.25,-6.83 -2.84,0 -5.44,1.58 -6.61,4.03 -0.39,0.81 -0.59,1.76 -0.59,2.8 0,0.78 0.07,2.01 0.67,3.61 0.1,0.26 -0.03,0.55 -0.29,0.64 -0.26,0.1 -0.55,-0.04 -0.64,-0.29 -0.49,-1.31 -0.73,-2.61 -0.73,-3.96 0,-1.2 0.23,-2.29 0.68,-3.24 1.33,-2.79 4.28,-4.6 7.51,-4.6 4.55,0 8.25,3.51 8.25,7.83 0,1.62 -1.38,2.94 -3.08,2.94s-3.08,-1.32 -3.08,-2.94c0,-1.07 -0.93,-1.94 -2.08,-1.94s-2.08,0.87 -2.08,1.94c0,1.71 0.66,3.31 1.87,4.51 0.95,0.94 1.86,1.46 3.27,1.85 0.27,0.07 0.42,0.35 0.35,0.61 -0.05,0.23 -0.26,0.38 -0.47,0.38z"/>
 9 | </vector>
10 | 


--------------------------------------------------------------------------------
/gradlew.bat:
--------------------------------------------------------------------------------
 1 | @if "%DEBUG%" == "" @echo off
 2 | @rem ##########################################################################
 3 | @rem
 4 | @rem  Gradle startup script for Windows
 5 | @rem
 6 | @rem ##########################################################################
 7 | 
 8 | @rem Set local scope for the variables with windows NT shell
 9 | if "%OS%"=="Windows_NT" setlocal
10 | 
11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
12 | set DEFAULT_JVM_OPTS=
13 | 
14 | set DIRNAME=%~dp0
15 | if "%DIRNAME%" == "" set DIRNAME=.
16 | set APP_BASE_NAME=%~n0
17 | set APP_HOME=%DIRNAME%
18 | 
19 | @rem Find java.exe
20 | if defined JAVA_HOME goto findJavaFromJavaHome
21 | 
22 | set JAVA_EXE=java.exe
23 | %JAVA_EXE% -version >NUL 2>&1
24 | if "%ERRORLEVEL%" == "0" goto init
25 | 
26 | echo.
27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
28 | echo.
29 | echo Please set the JAVA_HOME variable in your environment to match the
30 | echo location of your Java installation.
31 | 
32 | goto fail
33 | 
34 | :findJavaFromJavaHome
35 | set JAVA_HOME=%JAVA_HOME:"=%
36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe
37 | 
38 | if exist "%JAVA_EXE%" goto init
39 | 
40 | echo.
41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
42 | echo.
43 | echo Please set the JAVA_HOME variable in your environment to match the
44 | echo location of your Java installation.
45 | 
46 | goto fail
47 | 
48 | :init
49 | @rem Get command-line arguments, handling Windowz variants
50 | 
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 | if "%@eval[2+2]" == "4" goto 4NT_args
53 | 
54 | :win9xME_args
55 | @rem Slurp the command line arguments.
56 | set CMD_LINE_ARGS=
57 | set _SKIP=2
58 | 
59 | :win9xME_args_slurp
60 | if "x%~1" == "x" goto execute
61 | 
62 | set CMD_LINE_ARGS=%*
63 | goto execute
64 | 
65 | :4NT_args
66 | @rem Get arguments from the 4NT Shell from JP Software
67 | set CMD_LINE_ARGS=%$
68 | 
69 | :execute
70 | @rem Setup the command line
71 | 
72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
73 | 
74 | @rem Execute Gradle
75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
76 | 
77 | :end
78 | @rem End local scope for the variables with windows NT shell
79 | if "%ERRORLEVEL%"=="0" goto mainEnd
80 | 
81 | :fail
82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
83 | rem the _cmd.exe /c_ return code!
84 | if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
85 | exit /b 1
86 | 
87 | :mainEnd
88 | if "%OS%"=="Windows_NT" endlocal
89 | 
90 | :omega
91 | 


--------------------------------------------------------------------------------
/app/src/main/res/layout/dialog_fingerprint.xml:
--------------------------------------------------------------------------------
 1 | <?xml version="1.0" encoding="utf-8"?>
 2 | <android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
 3 |     xmlns:app="http://schemas.android.com/apk/res-auto"
 4 |     xmlns:tools="http://schemas.android.com/tools"
 5 |     android:layout_width="match_parent"
 6 |     android:layout_height="wrap_content"
 7 |     android:paddingLeft="24dp"
 8 |     android:paddingRight="24dp"
 9 |     android:paddingTop="24dp"
10 |     app:layout_constraintLeft_toLeftOf="parent"
11 |     app:layout_constraintRight_toRightOf="parent">
12 | 
13 |     <TextView
14 |         android:id="@+id/titleTextView"
15 |         android:layout_width="0dp"
16 |         android:layout_height="wrap_content"
17 |         android:textAppearance="?android:attr/textAppearanceLarge"
18 |         app:layout_constraintLeft_toLeftOf="parent"
19 |         app:layout_constraintRight_toRightOf="parent"
20 |         tools:text="Sign In" />
21 | 
22 |     <TextView
23 |         android:id="@+id/subtitleTextView"
24 |         android:layout_width="0dp"
25 |         android:layout_height="wrap_content"
26 |         android:layout_marginTop="20dp"
27 |         app:layout_constraintLeft_toLeftOf="parent"
28 |         app:layout_constraintRight_toRightOf="parent"
29 |         app:layout_constraintTop_toBottomOf="@id/titleTextView"
30 |         tools:text="Confirm fingerprint to continue." />
31 | 
32 |     <android.support.design.widget.FloatingActionButton
33 |         android:id="@+id/iconFAB"
34 |         android:layout_width="wrap_content"
35 |         android:layout_height="wrap_content"
36 |         android:layout_marginTop="28dp"
37 |         app:layout_constraintLeft_toLeftOf="parent"
38 |         app:layout_constraintTop_toBottomOf="@id/subtitleTextView"
39 |         tools:srcCompat="@drawable/ic_fingerprint_white_24dp" />
40 | 
41 |     <TextView
42 |         android:id="@+id/errorTextView"
43 |         android:layout_width="0dp"
44 |         android:layout_height="0dp"
45 |         android:layout_marginStart="16dp"
46 |         android:gravity="center_vertical"
47 |         app:layout_constraintBottom_toBottomOf="@id/iconFAB"
48 |         app:layout_constraintLeft_toRightOf="@id/iconFAB"
49 |         app:layout_constraintRight_toRightOf="parent"
50 |         app:layout_constraintTop_toTopOf="@id/iconFAB"
51 |         tools:text="Touch sensor" />
52 | 
53 |     <LinearLayout
54 |         android:id="@+id/buttons"
55 |         style="?android:attr/buttonBarStyle"
56 |         android:layout_width="0dp"
57 |         android:layout_height="wrap_content"
58 |         android:layout_marginTop="16dp"
59 |         android:gravity="end"
60 |         android:orientation="horizontal"
61 |         app:layout_constraintBottom_toBottomOf="parent"
62 |         app:layout_constraintLeft_toLeftOf="parent"
63 |         app:layout_constraintRight_toRightOf="parent"
64 |         app:layout_constraintTop_toBottomOf="@id/iconFAB">
65 | 
66 |         <Button
67 |             android:id="@+id/cancelButton"
68 |             style="?android:attr/buttonBarButtonStyle"
69 |             android:layout_width="wrap_content"
70 |             android:layout_height="wrap_content"
71 |             android:text="@string/cancel" />
72 |     </LinearLayout>
73 | 
74 | 
75 | </android.support.constraint.ConstraintLayout>


--------------------------------------------------------------------------------
/gradlew:
--------------------------------------------------------------------------------
  1 | #!/usr/bin/env bash
  2 | 
  3 | ##############################################################################
  4 | ##
  5 | ##  Gradle start up script for UN*X
  6 | ##
  7 | ##############################################################################
  8 | 
  9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 10 | DEFAULT_JVM_OPTS=""
 11 | 
 12 | APP_NAME="Gradle"
 13 | APP_BASE_NAME=`basename "$0"`
 14 | 
 15 | # Use the maximum available, or set MAX_FD != -1 to use that value.
 16 | MAX_FD="maximum"
 17 | 
 18 | warn ( ) {
 19 |     echo "$*"
 20 | }
 21 | 
 22 | die ( ) {
 23 |     echo
 24 |     echo "$*"
 25 |     echo
 26 |     exit 1
 27 | }
 28 | 
 29 | # OS specific support (must be 'true' or 'false').
 30 | cygwin=false
 31 | msys=false
 32 | darwin=false
 33 | case "`uname`" in
 34 |   CYGWIN* )
 35 |     cygwin=true
 36 |     ;;
 37 |   Darwin* )
 38 |     darwin=true
 39 |     ;;
 40 |   MINGW* )
 41 |     msys=true
 42 |     ;;
 43 | esac
 44 | 
 45 | # Attempt to set APP_HOME
 46 | # Resolve links: $0 may be a link
 47 | PRG="$0"
 48 | # Need this for relative symlinks.
 49 | while [ -h "$PRG" ] ; do
 50 |     ls=`ls -ld "$PRG"`
 51 |     link=`expr "$ls" : '.*-> \(.*\)$'`
 52 |     if expr "$link" : '/.*' > /dev/null; then
 53 |         PRG="$link"
 54 |     else
 55 |         PRG=`dirname "$PRG"`"/$link"
 56 |     fi
 57 | done
 58 | SAVED="`pwd`"
 59 | cd "`dirname \"$PRG\"`/" >/dev/null
 60 | APP_HOME="`pwd -P`"
 61 | cd "$SAVED" >/dev/null
 62 | 
 63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 64 | 
 65 | # Determine the Java command to use to start the JVM.
 66 | if [ -n "$JAVA_HOME" ] ; then
 67 |     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
 68 |         # IBM's JDK on AIX uses strange locations for the executables
 69 |         JAVACMD="$JAVA_HOME/jre/sh/java"
 70 |     else
 71 |         JAVACMD="$JAVA_HOME/bin/java"
 72 |     fi
 73 |     if [ ! -x "$JAVACMD" ] ; then
 74 |         die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
 75 | 
 76 | Please set the JAVA_HOME variable in your environment to match the
 77 | location of your Java installation."
 78 |     fi
 79 | else
 80 |     JAVACMD="java"
 81 |     which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
 82 | 
 83 | Please set the JAVA_HOME variable in your environment to match the
 84 | location of your Java installation."
 85 | fi
 86 | 
 87 | # Increase the maximum file descriptors if we can.
 88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then
 89 |     MAX_FD_LIMIT=`ulimit -H -n`
 90 |     if [ $? -eq 0 ] ; then
 91 |         if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
 92 |             MAX_FD="$MAX_FD_LIMIT"
 93 |         fi
 94 |         ulimit -n $MAX_FD
 95 |         if [ $? -ne 0 ] ; then
 96 |             warn "Could not set maximum file descriptor limit: $MAX_FD"
 97 |         fi
 98 |     else
 99 |         warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
100 |     fi
101 | fi
102 | 
103 | # For Darwin, add options to specify how the application appears in the dock
104 | if $darwin; then
105 |     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
106 | fi
107 | 
108 | # For Cygwin, switch paths to Windows format before running java
109 | if $cygwin ; then
110 |     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
111 |     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
112 |     JAVACMD=`cygpath --unix "$JAVACMD"`
113 | 
114 |     # We build the pattern for arguments to be converted via cygpath
115 |     ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
116 |     SEP=""
117 |     for dir in $ROOTDIRSRAW ; do
118 |         ROOTDIRS="$ROOTDIRS$SEP$dir"
119 |         SEP="|"
120 |     done
121 |     OURCYGPATTERN="(^($ROOTDIRS))"
122 |     # Add a user-defined pattern to the cygpath arguments
123 |     if [ "$GRADLE_CYGPATTERN" != "" ] ; then
124 |         OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
125 |     fi
126 |     # Now convert the arguments - kludge to limit ourselves to /bin/sh
127 |     i=0
128 |     for arg in "$@" ; do
129 |         CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
130 |         CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
131 | 
132 |         if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
133 |             eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
134 |         else
135 |             eval `echo args$i`="\"$arg\""
136 |         fi
137 |         i=$((i+1))
138 |     done
139 |     case $i in
140 |         (0) set -- ;;
141 |         (1) set -- "$args0" ;;
142 |         (2) set -- "$args0" "$args1" ;;
143 |         (3) set -- "$args0" "$args1" "$args2" ;;
144 |         (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
145 |         (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
146 |         (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
147 |         (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
148 |         (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
149 |         (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
150 |     esac
151 | fi
152 | 
153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules
154 | function splitJvmOpts() {
155 |     JVM_OPTS=("$@")
156 | }
157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS
158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME"
159 | 
160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"
161 | 


--------------------------------------------------------------------------------
/app/src/main/res/drawable/ic_launcher_background.xml:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0" encoding="utf-8"?>
  2 | <vector xmlns:android="http://schemas.android.com/apk/res/android"
  3 |     android:width="108dp"
  4 |     android:height="108dp"
  5 |     android:viewportHeight="108"
  6 |     android:viewportWidth="108">
  7 |     <path
  8 |         android:fillColor="#26A69A"
  9 |         android:pathData="M0,0h108v108h-108z" />
 10 |     <path
 11 |         android:fillColor="#00000000"
 12 |         android:pathData="M9,0L9,108"
 13 |         android:strokeColor="#33FFFFFF"
 14 |         android:strokeWidth="0.8" />
 15 |     <path
 16 |         android:fillColor="#00000000"
 17 |         android:pathData="M19,0L19,108"
 18 |         android:strokeColor="#33FFFFFF"
 19 |         android:strokeWidth="0.8" />
 20 |     <path
 21 |         android:fillColor="#00000000"
 22 |         android:pathData="M29,0L29,108"
 23 |         android:strokeColor="#33FFFFFF"
 24 |         android:strokeWidth="0.8" />
 25 |     <path
 26 |         android:fillColor="#00000000"
 27 |         android:pathData="M39,0L39,108"
 28 |         android:strokeColor="#33FFFFFF"
 29 |         android:strokeWidth="0.8" />
 30 |     <path
 31 |         android:fillColor="#00000000"
 32 |         android:pathData="M49,0L49,108"
 33 |         android:strokeColor="#33FFFFFF"
 34 |         android:strokeWidth="0.8" />
 35 |     <path
 36 |         android:fillColor="#00000000"
 37 |         android:pathData="M59,0L59,108"
 38 |         android:strokeColor="#33FFFFFF"
 39 |         android:strokeWidth="0.8" />
 40 |     <path
 41 |         android:fillColor="#00000000"
 42 |         android:pathData="M69,0L69,108"
 43 |         android:strokeColor="#33FFFFFF"
 44 |         android:strokeWidth="0.8" />
 45 |     <path
 46 |         android:fillColor="#00000000"
 47 |         android:pathData="M79,0L79,108"
 48 |         android:strokeColor="#33FFFFFF"
 49 |         android:strokeWidth="0.8" />
 50 |     <path
 51 |         android:fillColor="#00000000"
 52 |         android:pathData="M89,0L89,108"
 53 |         android:strokeColor="#33FFFFFF"
 54 |         android:strokeWidth="0.8" />
 55 |     <path
 56 |         android:fillColor="#00000000"
 57 |         android:pathData="M99,0L99,108"
 58 |         android:strokeColor="#33FFFFFF"
 59 |         android:strokeWidth="0.8" />
 60 |     <path
 61 |         android:fillColor="#00000000"
 62 |         android:pathData="M0,9L108,9"
 63 |         android:strokeColor="#33FFFFFF"
 64 |         android:strokeWidth="0.8" />
 65 |     <path
 66 |         android:fillColor="#00000000"
 67 |         android:pathData="M0,19L108,19"
 68 |         android:strokeColor="#33FFFFFF"
 69 |         android:strokeWidth="0.8" />
 70 |     <path
 71 |         android:fillColor="#00000000"
 72 |         android:pathData="M0,29L108,29"
 73 |         android:strokeColor="#33FFFFFF"
 74 |         android:strokeWidth="0.8" />
 75 |     <path
 76 |         android:fillColor="#00000000"
 77 |         android:pathData="M0,39L108,39"
 78 |         android:strokeColor="#33FFFFFF"
 79 |         android:strokeWidth="0.8" />
 80 |     <path
 81 |         android:fillColor="#00000000"
 82 |         android:pathData="M0,49L108,49"
 83 |         android:strokeColor="#33FFFFFF"
 84 |         android:strokeWidth="0.8" />
 85 |     <path
 86 |         android:fillColor="#00000000"
 87 |         android:pathData="M0,59L108,59"
 88 |         android:strokeColor="#33FFFFFF"
 89 |         android:strokeWidth="0.8" />
 90 |     <path
 91 |         android:fillColor="#00000000"
 92 |         android:pathData="M0,69L108,69"
 93 |         android:strokeColor="#33FFFFFF"
 94 |         android:strokeWidth="0.8" />
 95 |     <path
 96 |         android:fillColor="#00000000"
 97 |         android:pathData="M0,79L108,79"
 98 |         android:strokeColor="#33FFFFFF"
 99 |         android:strokeWidth="0.8" />
100 |     <path
101 |         android:fillColor="#00000000"
102 |         android:pathData="M0,89L108,89"
103 |         android:strokeColor="#33FFFFFF"
104 |         android:strokeWidth="0.8" />
105 |     <path
106 |         android:fillColor="#00000000"
107 |         android:pathData="M0,99L108,99"
108 |         android:strokeColor="#33FFFFFF"
109 |         android:strokeWidth="0.8" />
110 |     <path
111 |         android:fillColor="#00000000"
112 |         android:pathData="M19,29L89,29"
113 |         android:strokeColor="#33FFFFFF"
114 |         android:strokeWidth="0.8" />
115 |     <path
116 |         android:fillColor="#00000000"
117 |         android:pathData="M19,39L89,39"
118 |         android:strokeColor="#33FFFFFF"
119 |         android:strokeWidth="0.8" />
120 |     <path
121 |         android:fillColor="#00000000"
122 |         android:pathData="M19,49L89,49"
123 |         android:strokeColor="#33FFFFFF"
124 |         android:strokeWidth="0.8" />
125 |     <path
126 |         android:fillColor="#00000000"
127 |         android:pathData="M19,59L89,59"
128 |         android:strokeColor="#33FFFFFF"
129 |         android:strokeWidth="0.8" />
130 |     <path
131 |         android:fillColor="#00000000"
132 |         android:pathData="M19,69L89,69"
133 |         android:strokeColor="#33FFFFFF"
134 |         android:strokeWidth="0.8" />
135 |     <path
136 |         android:fillColor="#00000000"
137 |         android:pathData="M19,79L89,79"
138 |         android:strokeColor="#33FFFFFF"
139 |         android:strokeWidth="0.8" />
140 |     <path
141 |         android:fillColor="#00000000"
142 |         android:pathData="M29,19L29,89"
143 |         android:strokeColor="#33FFFFFF"
144 |         android:strokeWidth="0.8" />
145 |     <path
146 |         android:fillColor="#00000000"
147 |         android:pathData="M39,19L39,89"
148 |         android:strokeColor="#33FFFFFF"
149 |         android:strokeWidth="0.8" />
150 |     <path
151 |         android:fillColor="#00000000"
152 |         android:pathData="M49,19L49,89"
153 |         android:strokeColor="#33FFFFFF"
154 |         android:strokeWidth="0.8" />
155 |     <path
156 |         android:fillColor="#00000000"
157 |         android:pathData="M59,19L59,89"
158 |         android:strokeColor="#33FFFFFF"
159 |         android:strokeWidth="0.8" />
160 |     <path
161 |         android:fillColor="#00000000"
162 |         android:pathData="M69,19L69,89"
163 |         android:strokeColor="#33FFFFFF"
164 |         android:strokeWidth="0.8" />
165 |     <path
166 |         android:fillColor="#00000000"
167 |         android:pathData="M79,19L79,89"
168 |         android:strokeColor="#33FFFFFF"
169 |         android:strokeWidth="0.8" />
170 | </vector>
171 | 


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/app/src/main/java/com/androidessence/fingerprintdialogsample/FingerprintController.kt:
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  1 | package com.androidessence.fingerprintdialogsample
  2 | 
  3 | import android.content.Context
  4 | import android.support.v4.content.ContextCompat
  5 | import android.support.v4.hardware.fingerprint.FingerprintManagerCompat
  6 | import android.support.v4.os.CancellationSignal
  7 | import android.widget.ImageView
  8 | import android.widget.TextView
  9 | 
 10 | /**
 11 |  * Defines the behavior required by any view used for fingerprint authentication.
 12 |  *
 13 |  * @property[fingerprintManager] The system manager for fingerprint hardware functionality.
 14 |  * @param[callback] A callback to the view when authentication fails or succeeds.
 15 |  * @param[title] The TextView that displays the title for the authentication flow.
 16 |  * @param[subtitle] The TextView that displays the subtitle for the authentication flow.
 17 |  * @param[errorText] The TextView that displays the error text for the authentication flow.
 18 |  * @param[icon] The ImageView that displays the icon for the authentication flow.
 19 |  */
 20 | class FingerprintController(
 21 |         private val fingerprintManager: FingerprintManagerCompat,
 22 |         private val callback: Callback,
 23 |         private val title: TextView,
 24 |         private val subtitle: TextView,
 25 |         private val errorText: TextView,
 26 |         private val icon: ImageView) : FingerprintManagerCompat.AuthenticationCallback() {
 27 | 
 28 |     /**
 29 |      * The signal that gets called if the fingerprint authentication is cancelled.
 30 |      */
 31 |     private var cancellationSignal: CancellationSignal? = null
 32 | 
 33 |     /**
 34 |      * Boolean flag for whether or not authentication was cancelled by this controller or something else.
 35 |      */
 36 |     private var selfCancelled = false
 37 | 
 38 |     /**
 39 |      * Determines whether or not this device can support fingerprint authentication.
 40 |      */
 41 |     private val isFingerprintAuthAvailable: Boolean
 42 |         get() = fingerprintManager.isHardwareDetected && fingerprintManager.hasEnrolledFingerprints()
 43 | 
 44 |     /**
 45 |      * Helper variable to get the context from one of the views. The view used is arbitrary.
 46 |      */
 47 |     private val context: Context
 48 |         get() = errorText.context
 49 | 
 50 |     /**
 51 |      * Runnable that resets the icon and error text as necessary.
 52 |      */
 53 |     private val resetErrorTextRunnable: Runnable = Runnable {
 54 |         errorText.setTextColor(ContextCompat.getColor(context, R.color.hint_color))
 55 |         errorText.text = context.getString(R.string.touch_sensor)
 56 |         icon.setImageResource(R.drawable.ic_fingerprint_white_24dp)
 57 |     }
 58 | 
 59 |     init {
 60 |         errorText.post(resetErrorTextRunnable)
 61 |     }
 62 | 
 63 |     /**
 64 |      * Begins listening for fingerprint authentication on the device.
 65 |      */
 66 |     fun startListening(cryptoObject: FingerprintManagerCompat.CryptoObject) {
 67 |         if (!isFingerprintAuthAvailable) return
 68 | 
 69 |         cancellationSignal = CancellationSignal()
 70 |         selfCancelled = false
 71 |         fingerprintManager.authenticate(cryptoObject, 0, cancellationSignal, this, null)
 72 |     }
 73 | 
 74 |     /**
 75 |      * Cancels listening for fingerprint authentication. This should be done anytime your activity is killed, so that another app in the system can begin to check for the fingerprint.
 76 |      */
 77 |     fun stopListening() {
 78 |         cancellationSignal?.let {
 79 |             selfCancelled = true
 80 |             it.cancel()
 81 |             cancellationSignal = null
 82 |         }
 83 |     }
 84 | 
 85 |     /**
 86 |      * Displays an error to the user if there was a problem with authentication.
 87 |      *
 88 |      * @param[text] The error message to show.
 89 |      */
 90 |     private fun showError(text: CharSequence?) {
 91 |         icon.setImageResource(R.drawable.ic_error_white_24dp)
 92 |         errorText.text = text
 93 |         errorText.setTextColor(ContextCompat.getColor(errorText.context, R.color.warning_color))
 94 |         errorText.removeCallbacks(resetErrorTextRunnable)
 95 |         errorText.postDelayed(resetErrorTextRunnable, ERROR_TIMEOUT_MILLIS)
 96 |     }
 97 | 
 98 |     override fun onAuthenticationError(errMsgId: Int, errString: CharSequence?) {
 99 |         if (!selfCancelled) {
100 |             showError(errString)
101 |             icon.postDelayed({
102 |                 callback.onError()
103 |             }, ERROR_TIMEOUT_MILLIS)
104 |         }
105 |     }
106 | 
107 |     override fun onAuthenticationSucceeded(result: FingerprintManagerCompat.AuthenticationResult?) {
108 |         errorText.removeCallbacks(resetErrorTextRunnable)
109 |         icon.setImageResource(R.drawable.ic_check_white_24dp)
110 |         errorText.setTextColor(ContextCompat.getColor(errorText.context, R.color.success_color))
111 |         errorText.text = errorText.context.getString(R.string.fingerprint_recognized)
112 |         icon.postDelayed({
113 |             callback.onAuthenticated()
114 |         }, SUCCESS_DELAY_MILLIS)
115 |     }
116 | 
117 |     override fun onAuthenticationHelp(helpMsgId: Int, helpString: CharSequence?) {
118 |         showError(helpString)
119 |     }
120 | 
121 |     override fun onAuthenticationFailed() {
122 |         showError(errorText.context.getString(R.string.fingerprint_not_recognized))
123 |     }
124 | 
125 |     /**
126 |      * Displays a title for the fingerprint authentication flow.
127 |      *
128 |      * @param[title] The text to be displayed.
129 |      */
130 |     fun setTitle(title: CharSequence) {
131 |         this.title.text = title
132 |     }
133 | 
134 |     /**
135 |      * Displays a subtitle for the fingerprint authentication flow.
136 |      *
137 |      * @param[subtitle] The text to be displayed.
138 |      */
139 |     fun setSubtitle(subtitle: CharSequence) {
140 |         this.subtitle.text = subtitle
141 |     }
142 | 
143 |     companion object {
144 |         /**
145 |          * The amount of time that we should delay before showing the error message to the user.
146 |          */
147 |         private val ERROR_TIMEOUT_MILLIS = 1600L
148 | 
149 |         /**
150 |          * The amount of time that we should delay before showing the success message to the user.
151 |          */
152 |         private val SUCCESS_DELAY_MILLIS = 1300L
153 |     }
154 | 
155 |     /**
156 |      * A callback that allows a class to be updated when fingerprint authentication is complete.
157 |      */
158 |     interface Callback {
159 |         /**
160 |          * Callback method used for a successful fingerprint authentication.
161 |          */
162 |         fun onAuthenticated()
163 | 
164 |         /**
165 |          * Callback method used if there is any error authenticating the fingerprint.
166 |          */
167 |         fun onError()
168 |     }
169 | }


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/app/src/main/java/com/androidessence/fingerprintdialogsample/FingerprintDialog.kt:
--------------------------------------------------------------------------------
  1 | package com.androidessence.fingerprintdialogsample
  2 | 
  3 | import android.os.Build
  4 | import android.os.Bundle
  5 | import android.security.keystore.KeyGenParameterSpec
  6 | import android.security.keystore.KeyPermanentlyInvalidatedException
  7 | import android.security.keystore.KeyProperties
  8 | import android.support.v4.app.DialogFragment
  9 | import android.support.v4.hardware.fingerprint.FingerprintManagerCompat
 10 | import android.view.LayoutInflater
 11 | import android.view.View
 12 | import android.view.ViewGroup
 13 | import kotlinx.android.synthetic.main.dialog_fingerprint.*
 14 | import java.io.IOException
 15 | import java.security.*
 16 | import java.security.cert.CertificateException
 17 | import javax.crypto.Cipher
 18 | import javax.crypto.KeyGenerator
 19 | import javax.crypto.NoSuchPaddingException
 20 | import javax.crypto.SecretKey
 21 | 
 22 | 
 23 | /**
 24 |  * DialogFragment that prompts the user to authenticate their fingerprint.
 25 |  */
 26 | class FingerprintDialog : DialogFragment(), FingerprintController.Callback {
 27 | 
 28 |     private val controller: FingerprintController by lazy {
 29 |         FingerprintController(
 30 |                 FingerprintManagerCompat.from(context),
 31 |                 this,
 32 |                 titleTextView,
 33 |                 subtitleTextView,
 34 |                 errorTextView,
 35 |                 iconFAB
 36 |         )
 37 |     }
 38 | 
 39 |     /**
 40 |      * CryptoObject is a wrapper class for any cryptography required by the FingerprintManager.
 41 |      * https://developer.android.com/reference/android/support/v4/hardware/fingerprint/FingerprintManagerCompat.CryptoObject.html
 42 |      */
 43 |     private var cryptoObject: FingerprintManagerCompat.CryptoObject? = null
 44 | 
 45 |     /**
 46 |      * KeyStore is the device's storage for any cryptographic keys and certificates. We use this to get a key for the fingerprint manager.
 47 |      * https://developer.android.com/reference/java/security/KeyStore.html
 48 |      */
 49 |     private var keyStore: KeyStore? = null
 50 | 
 51 |     /**
 52 |      * This class is used to generate the keys that were reference from the [keyStore].
 53 |      * https://developer.android.com/reference/javax/crypto/KeyGenerator.html
 54 |      */
 55 |     private var keyGenerator: KeyGenerator? = null
 56 | 
 57 |     override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, savedInstanceState: Bundle?): View? =
 58 |             inflater?.inflate(R.layout.dialog_fingerprint, container, false)
 59 | 
 60 | 
 61 |     override fun onViewCreated(view: View?, savedInstanceState: Bundle?) {
 62 |         super.onViewCreated(view, savedInstanceState)
 63 | 
 64 |         controller.setTitle(arguments.getString(ARG_TITLE))
 65 |         controller.setSubtitle(arguments.getString(ARG_SUBTITLE))
 66 |     }
 67 | 
 68 |     override fun onCreate(savedInstanceState: Bundle?) {
 69 |         super.onCreate(savedInstanceState)
 70 | 
 71 |         try {
 72 |             keyStore = KeyStore.getInstance("AndroidKeyStore")
 73 |         } catch (e: KeyStoreException) {
 74 |             throw RuntimeException("Failed to get an instance of KeyStore", e)
 75 |         }
 76 | 
 77 |         try {
 78 |             keyGenerator = KeyGenerator
 79 |                     .getInstance(KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStore")
 80 |         } catch (e: NoSuchAlgorithmException) {
 81 |             throw RuntimeException("Failed to get an instance of KeyGenerator", e)
 82 |         } catch (e: NoSuchProviderException) {
 83 |             throw RuntimeException("Failed to get an instance of KeyGenerator", e)
 84 |         }
 85 | 
 86 |         createKey(DEFAULT_KEY_NAME, false)
 87 | 
 88 |         val defaultCipher: Cipher
 89 |         try {
 90 |             defaultCipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/"
 91 |                     + KeyProperties.BLOCK_MODE_CBC + "/"
 92 |                     + KeyProperties.ENCRYPTION_PADDING_PKCS7)
 93 |         } catch (e: NoSuchAlgorithmException) {
 94 |             throw RuntimeException("Failed to get an instance of Cipher", e)
 95 |         } catch (e: NoSuchPaddingException) {
 96 |             throw RuntimeException("Failed to get an instance of Cipher", e)
 97 |         }
 98 | 
 99 |         if (initCipher(defaultCipher, DEFAULT_KEY_NAME)) {
100 |             cryptoObject = FingerprintManagerCompat.CryptoObject(defaultCipher)
101 |         }
102 |     }
103 | 
104 |     override fun onResume() {
105 |         super.onResume()
106 | 
107 |         dialog?.window?.setLayout(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT)
108 |         cryptoObject?.let {
109 |             controller.startListening(it)
110 |         }
111 |     }
112 | 
113 |     override fun onPause() {
114 |         super.onPause()
115 |         controller.stopListening()
116 |     }
117 | 
118 |     override fun onAuthenticated() {
119 |         //TODO:
120 |     }
121 | 
122 |     override fun onError() {
123 |         //TODO:
124 |     }
125 | 
126 |     /**
127 |      * Lifted code from the Google samples - https://github.com/googlesamples/android-FingerprintDialog/blob/master/kotlinApp/app/src/main/java/com/example/android/fingerprintdialog/MainActivity.kt
128 |      *
129 |      * Initialize the [Cipher] instance with the created key in the
130 |      * [.createKey] method.
131 |      *
132 |      * @param keyName the key name to init the cipher
133 |      * @return `true` if initialization is successful, `false` if the lock screen has
134 |      * been disabled or reset after the key was generated, or if a fingerprint got enrolled after
135 |      * the key was generated.
136 |      */
137 |     private fun initCipher(cipher: Cipher, keyName: String): Boolean {
138 |         try {
139 |             keyStore?.load(null)
140 |             val key = keyStore?.getKey(keyName, null) as SecretKey
141 |             cipher.init(Cipher.ENCRYPT_MODE, key)
142 |             return true
143 |         } catch (e: KeyPermanentlyInvalidatedException) {
144 |             return false
145 |         } catch (e: KeyStoreException) {
146 |             throw RuntimeException("Failed to init Cipher", e)
147 |         } catch (e: CertificateException) {
148 |             throw RuntimeException("Failed to init Cipher", e)
149 |         } catch (e: UnrecoverableKeyException) {
150 |             throw RuntimeException("Failed to init Cipher", e)
151 |         } catch (e: IOException) {
152 |             throw RuntimeException("Failed to init Cipher", e)
153 |         } catch (e: NoSuchAlgorithmException) {
154 |             throw RuntimeException("Failed to init Cipher", e)
155 |         } catch (e: InvalidKeyException) {
156 |             throw RuntimeException("Failed to init Cipher", e)
157 |         }
158 |     }
159 | 
160 |     /**
161 |      * Lifted code from the Google Samples - https://github.com/googlesamples/android-FingerprintDialog/blob/master/kotlinApp/app/src/main/java/com/example/android/fingerprintdialog/MainActivity.kt
162 |      *
163 |      * Creates a symmetric key in the Android Key Store which can only be used after the user has
164 |      * authenticated with fingerprint.
165 |      *
166 |      * @param keyName the name of the key to be created
167 |      * @param invalidatedByBiometricEnrollment if `false` is passed, the created key will not
168 |      * be invalidated even if a new fingerprint is enrolled.
169 |      * The default value is `true`, so passing
170 |      * `true` doesn't change the behavior
171 |      * (the key will be invalidated if a new fingerprint is
172 |      * enrolled.). Note that this parameter is only valid if
173 |      * the app works on Android N developer preview.
174 |      */
175 |     private fun createKey(keyName: String, invalidatedByBiometricEnrollment: Boolean) {
176 |         // The enrolling flow for fingerprint. This is where you ask the user to set up fingerprint
177 |         // for your flow. Use of keys is necessary if you need to know if the set of
178 |         // enrolled fingerprints has changed.
179 |         try {
180 |             keyStore?.load(null)
181 |             // Set the alias of the entry in Android KeyStore where the key will appear
182 |             // and the constrains (purposes) in the constructor of the Builder
183 | 
184 |             val builder = KeyGenParameterSpec.Builder(keyName,
185 |                     KeyProperties.PURPOSE_ENCRYPT or KeyProperties.PURPOSE_DECRYPT)
186 |                     .setBlockModes(KeyProperties.BLOCK_MODE_CBC)
187 |                     // Require the user to authenticate with a fingerprint to authorize every use
188 |                     // of the key
189 |                     .setUserAuthenticationRequired(true)
190 |                     .setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7)
191 | 
192 |             // This is a workaround to avoid crashes on devices whose API level is < 24
193 |             // because KeyGenParameterSpec.Builder#setInvalidatedByBiometricEnrollment is only
194 |             // visible on API level +24.
195 |             // Ideally there should be a compat library for KeyGenParameterSpec.Builder but
196 |             // which isn't available yet.
197 |             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
198 |                 builder.setInvalidatedByBiometricEnrollment(invalidatedByBiometricEnrollment)
199 |             }
200 |             keyGenerator?.init(builder.build())
201 |             keyGenerator?.generateKey()
202 |         } catch (e: NoSuchAlgorithmException) {
203 |             throw RuntimeException(e)
204 |         } catch (e: InvalidAlgorithmParameterException) {
205 |             throw RuntimeException(e)
206 |         } catch (e: CertificateException) {
207 |             throw RuntimeException(e)
208 |         } catch (e: IOException) {
209 |             throw RuntimeException(e)
210 |         }
211 | 
212 |     }
213 | 
214 |     companion object {
215 |         /**
216 |          * Fragment tag that is used when this dialog is shown.
217 |          */
218 |         val FRAGMENT_TAG: String = FingerprintDialog::class.java.simpleName
219 | 
220 |         // Bundle keys for each of the arguments of the newInstance method.
221 |         private val ARG_TITLE = "ArgTitle"
222 |         private val ARG_SUBTITLE = "ArgSubtitle"
223 | 
224 |         private val DEFAULT_KEY_NAME = "default_key"
225 | 
226 |         /**
227 |          * Creates a new FingerprintDialog instance with initial text setup.
228 |          *
229 |          * @param[title] The title of this FingerprintDialog.
230 |          * @param[subtitle] The subtitle or description of the dialog.
231 |          */
232 |         fun newInstance(title: String, subtitle: String): FingerprintDialog {
233 |             val args = Bundle()
234 |             args.putString(ARG_TITLE, title)
235 |             args.putString(ARG_SUBTITLE, subtitle)
236 | 
237 |             val fragment = FingerprintDialog()
238 |             fragment.arguments = args
239 | 
240 |             return fragment
241 |         }
242 |     }
243 | }


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