├── .gitignore
├── .idea
├── codeStyles
│ └── Project.xml
├── compiler.xml
├── deploymentTargetDropDown.xml
├── gradle.xml
├── jarRepositories.xml
├── misc.xml
└── vcs.xml
├── README.md
├── app
├── .gitignore
├── build.gradle
└── src
│ └── main
│ ├── AndroidManifest.xml
│ ├── java
│ └── com
│ │ └── califeri
│ │ └── androidxbiometric
│ │ ├── BiometricPromptUtils.kt
│ │ ├── CryptoUtils.kt
│ │ └── MainActivity.kt
│ └── res
│ ├── drawable-v24
│ ├── ic_launcher_foreground.xml
│ └── illustration_fingerprint.png
│ ├── drawable
│ ├── ic_launcher_background.xml
│ └── ic_launcher_foreground.xml
│ ├── layout
│ └── activity_main.xml
│ ├── mipmap-anydpi-v26
│ ├── ic_launcher.xml
│ └── ic_launcher_round.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
│ └── values
│ ├── colors.xml
│ ├── dimen.xml
│ ├── ic_launcher_background.xml
│ ├── strings.xml
│ └── styles.xml
├── build.gradle
├── gradle.properties
├── gradle
└── wrapper
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
├── gradlew
├── gradlew.bat
├── screenshot.png
└── settings.gradle
/.gitignore:
--------------------------------------------------------------------------------
1 | *.iml
2 | .gradle
3 | /local.properties
4 | /.idea/caches
5 | /.idea/libraries
6 | /.idea/modules.xml
7 | /.idea/workspace.xml
8 | /.idea/navEditor.xml
9 | /.idea/assetWizardSettings.xml
10 | .DS_Store
11 | /build
12 | /captures
13 | .externalNativeBuild
14 | .cxx
15 |
--------------------------------------------------------------------------------
/.idea/codeStyles/Project.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 | xmlns:android
14 |
15 | ^$
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 | xmlns:.*
25 |
26 | ^$
27 |
28 |
29 | BY_NAME
30 |
31 |
32 |
33 |
34 |
35 |
36 | .*:id
37 |
38 | http://schemas.android.com/apk/res/android
39 |
40 |
41 |
42 |
43 |
44 |
45 |
46 |
47 | .*:name
48 |
49 | http://schemas.android.com/apk/res/android
50 |
51 |
52 |
53 |
54 |
55 |
56 |
57 |
58 | name
59 |
60 | ^$
61 |
62 |
63 |
64 |
65 |
66 |
67 |
68 |
69 | style
70 |
71 | ^$
72 |
73 |
74 |
75 |
76 |
77 |
78 |
79 |
80 | .*
81 |
82 | ^$
83 |
84 |
85 | BY_NAME
86 |
87 |
88 |
89 |
90 |
91 |
92 | .*
93 |
94 | http://schemas.android.com/apk/res/android
95 |
96 |
97 | ANDROID_ATTRIBUTE_ORDER
98 |
99 |
100 |
101 |
102 |
103 |
104 | .*
105 |
106 | .*
107 |
108 |
109 | BY_NAME
110 |
111 |
112 |
113 |
114 |
115 |
116 |
--------------------------------------------------------------------------------
/.idea/compiler.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
--------------------------------------------------------------------------------
/.idea/deploymentTargetDropDown.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
--------------------------------------------------------------------------------
/.idea/gradle.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
19 |
20 |
--------------------------------------------------------------------------------
/.idea/jarRepositories.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
--------------------------------------------------------------------------------
/.idea/misc.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |
14 |
--------------------------------------------------------------------------------
/.idea/vcs.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # AndroidXBiometric
2 | 
3 |
4 | AndroidXBiometric is an example of the usage of androidx Biometric API, using a `BiometricPromptUtils.kt` class that wraps up the main methods for building a biometric prompt.
5 |
6 | With the launch of Android 10 (API level 29), developers can now use the Biometric API, part of the AndroidX Biometric Library, for all their on-device user authentication needs.
7 | Biometric API provides a standardised dialog that works out of the box across multiple Android versions and persists across orientation changes. Also, it keeps things simple by only requiring you to provide the text that will be displayed to the user and a few callbacks for authentication success or failure.
8 |
9 | ## Usage
10 |
11 | ```kotlin
12 | private fun showBiometricPrompt() {
13 | val biometricPromptUtils = BiometricPromptUtils(this, object : BiometricPromptUtils.BiometricListener {
14 | override fun onAuthenticationLockoutError() {
15 | // implement your lockout error UI prompt
16 | }
17 |
18 | override fun onAuthenticationPermanentLockoutError() {
19 | // implement your permanent lockout error UI prompt
20 | }
21 |
22 | override fun onAuthenticationSuccess() {
23 | // implement your authentication success UI prompt
24 | }
25 |
26 | override fun onAuthenticationFailed() {
27 | // implement your authentication failed UI prompt
28 | }
29 |
30 | override fun onAuthenticationError() {
31 | // implement your authentication error UI prompt
32 | }
33 |
34 | override fun onNewBiometricEnrollment() {
35 | // implement the logic when a new biometric has been enrolled
36 | }
37 |
38 | override fun onFirstBiometricAuthentication() {
39 | // implement the logic before a key is generated
40 | }
41 |
42 | })
43 | biometricPromptUtils.showBiometricPrompt(
44 | resources.getString(R.string.confirmYourBiometricsKey),
45 | resources.getString(R.string.cancelKey),
46 | confirmationRequired = false
47 | )
48 | }
49 | ```
50 |
51 | If you want to detect when another fingerprint/biometric is added or removed you need to use cipher and secret key to verify biometric data. First, you need to generate a key when the application gives approval to the usage of Biometrics. Usually this happens in the login/sign up flow of the app after entering the Pin, or where you enable the biometrics setting.
52 |
53 | ```kotlin
54 | biometricPromptUtils.generateCryptoKey()
55 | ```
56 |
57 | This key stays valid until biometric data changes by adding a new fingerprint for example. This happens when `setInvalidatedByBiometricEnrollment(true)` is set to true.
58 | If a change gets detected, then the `BiometricPromptUtils.BiometricListener` will post a `onNewBiometricEnrollment()` the first time this happens and then the key would be deleted.
59 | You can enable your biometric setting again in your app, by creating a new key.
60 |
61 |
62 | ## Contributing
63 | Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
64 |
--------------------------------------------------------------------------------
/app/.gitignore:
--------------------------------------------------------------------------------
1 | *.apk
2 | *.ap_
3 | *.dex
4 | *.class
5 | *.iml
6 | *.log
7 | *.keystore
8 |
9 | bin/
10 | gen/
11 | build/
12 | obj/
13 |
14 | proguard/
15 | captures/
16 | .navigation/
17 | .gradle/
18 | .idea/
19 |
20 | .DS_Store
21 | .navigation
22 | .externalNativeBuild
23 |
24 | local.properties
25 | keystore.properties
26 | flags.properties
27 |
28 | output.json
29 |
--------------------------------------------------------------------------------
/app/build.gradle:
--------------------------------------------------------------------------------
1 | apply plugin: 'com.android.application'
2 | apply plugin: 'kotlin-android'
3 |
4 | android {
5 | compileSdkVersion 33
6 | defaultConfig {
7 | applicationId "com.califeri.androidxbiometric"
8 | minSdkVersion 24
9 | targetSdkVersion 33
10 | versionCode 1
11 | versionName "1.0"
12 | testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
13 | }
14 | buildTypes {
15 | release {
16 | minifyEnabled false
17 | proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
18 | }
19 | }
20 | namespace 'com.califeri.androidxbiometric'
21 | }
22 |
23 | dependencies {
24 | implementation fileTree(dir: 'libs', include: ['*.jar'])
25 | implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
26 |
27 | implementation 'androidx.appcompat:appcompat:1.6.1'
28 | implementation 'androidx.core:core-ktx:1.9.0'
29 | implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
30 |
31 | // ----------- Biometric ------------
32 | implementation "androidx.biometric:biometric:1.1.0"
33 |
34 | // ----------- Material Components ------------
35 | implementation "com.google.android.material:material:1.6.0"
36 | }
37 |
--------------------------------------------------------------------------------
/app/src/main/AndroidManifest.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
10 |
13 |
14 |
15 |
16 |
17 |
18 |
19 |
20 |
--------------------------------------------------------------------------------
/app/src/main/java/com/califeri/androidxbiometric/BiometricPromptUtils.kt:
--------------------------------------------------------------------------------
1 | package com.califeri.androidxbiometric
2 |
3 | import androidx.biometric.BiometricManager
4 | import androidx.biometric.BiometricPrompt
5 | import androidx.biometric.BiometricPrompt.ERROR_LOCKOUT
6 | import androidx.biometric.BiometricPrompt.ERROR_LOCKOUT_PERMANENT
7 | import androidx.fragment.app.FragmentActivity
8 | import java.util.concurrent.Executors
9 |
10 | class BiometricPromptUtils(
11 | private val fragmentActivity: FragmentActivity,
12 | private val biometricListener: BiometricListener? = null,
13 | private val cryptoUtils: CryptoUtils
14 | ) {
15 |
16 | fun generateCryptoKey() {
17 | if (isDeviceSupportingBiometrics()) {
18 | cryptoUtils.generateKey()
19 | }
20 | }
21 |
22 | fun showBiometricPrompt(title: String, negativeText: String, confirmationRequired: Boolean) {
23 | if (isDeviceSupportingBiometrics()) {
24 | cryptoUtils.getCrypto(object : CryptoUtils.SecretKeyCreationListener {
25 | override fun onCryptoObjectCreated(cryptoObject: BiometricPrompt.CryptoObject) {
26 | createBiometricPrompt(fragmentActivity)
27 | .authenticate(createBiometricPromptInfo(title, negativeText, confirmationRequired), cryptoObject)
28 | }
29 |
30 | override fun onKeyStorePermanentlyInvalidated() {
31 | biometricListener?.onNewBiometricEnrollment()
32 | }
33 |
34 | override fun onSecretedKeyNotCreated() {
35 | biometricListener?.onFirstBiometricAuthentication()
36 | }
37 | })
38 | }
39 | }
40 |
41 | private fun createBiometricPromptInfo(
42 | title: String,
43 | negativeText: String,
44 | confirmationRequired: Boolean
45 | ): BiometricPrompt.PromptInfo {
46 | return BiometricPrompt.PromptInfo.Builder()
47 | .setTitle(title)
48 | .setNegativeButtonText(negativeText)
49 | .setConfirmationRequired(confirmationRequired)
50 | .build()
51 | }
52 |
53 | private fun createBiometricPrompt(fragmentActivity: FragmentActivity): BiometricPrompt {
54 |
55 | val executor = Executors.newSingleThreadExecutor()
56 | return BiometricPrompt(fragmentActivity, executor, object : BiometricPrompt.AuthenticationCallback() {
57 |
58 | override fun onAuthenticationError(errorCode: Int, errString: CharSequence) {
59 | super.onAuthenticationError(errorCode, errString)
60 | resolveAuthenticationError(errorCode)
61 | }
62 |
63 | override fun onAuthenticationSucceeded(result: BiometricPrompt.AuthenticationResult) {
64 | super.onAuthenticationSucceeded(result)
65 | biometricListener?.onAuthenticationSuccess()
66 | }
67 |
68 | override fun onAuthenticationFailed() {
69 | super.onAuthenticationFailed()
70 | biometricListener?.onAuthenticationFailed()
71 | }
72 |
73 | private fun resolveAuthenticationError(errorCode: Int) {
74 | when (errorCode) {
75 | ERROR_LOCKOUT -> biometricListener?.onAuthenticationLockoutError()
76 | ERROR_LOCKOUT_PERMANENT -> biometricListener?.onAuthenticationPermanentLockoutError()
77 | else -> biometricListener?.onAuthenticationError()
78 | }
79 | }
80 | })
81 | }
82 |
83 | private fun isDeviceSupportingBiometrics(): Boolean {
84 | return when (BiometricManager.from(fragmentActivity)
85 | .canAuthenticate(BiometricManager.Authenticators.BIOMETRIC_WEAK)) {
86 | BiometricManager.BIOMETRIC_SUCCESS -> true
87 | BiometricManager.BIOMETRIC_ERROR_NO_HARDWARE -> false
88 | BiometricManager.BIOMETRIC_ERROR_HW_UNAVAILABLE -> false
89 | BiometricManager.BIOMETRIC_ERROR_NONE_ENROLLED -> false
90 | else -> false
91 | }
92 | }
93 |
94 | interface BiometricListener {
95 |
96 | fun onAuthenticationSuccess()
97 | fun onAuthenticationFailed()
98 | fun onAuthenticationError()
99 | fun onAuthenticationLockoutError()
100 | fun onAuthenticationPermanentLockoutError()
101 | fun onNewBiometricEnrollment()
102 | fun onFirstBiometricAuthentication()
103 | }
104 | }
105 |
--------------------------------------------------------------------------------
/app/src/main/java/com/califeri/androidxbiometric/CryptoUtils.kt:
--------------------------------------------------------------------------------
1 | package com.califeri.androidxbiometric
2 |
3 | import android.security.keystore.KeyGenParameterSpec
4 | import android.security.keystore.KeyPermanentlyInvalidatedException
5 | import android.security.keystore.KeyProperties
6 | import android.util.Log
7 | import androidx.biometric.BiometricPrompt
8 | import java.security.KeyStore
9 | import javax.crypto.Cipher
10 | import javax.crypto.KeyGenerator
11 | import javax.crypto.SecretKey
12 |
13 | private const val DEFAULT_KEYSTORE = "AndroidKeyStore"
14 | private const val DEFAULT_KEY_NAME = "biometrics_key"
15 |
16 | class CryptoUtils() {
17 |
18 | fun generateKey() {
19 | val keyGenerator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, DEFAULT_KEYSTORE)
20 | keyGenerator.init(getKeyGen())
21 | keyGenerator.generateKey()
22 | }
23 |
24 | fun getCrypto(listener: SecretKeyCreationListener) {
25 | try {
26 | val cipher = getCipher()
27 | val key = getKey()
28 | cipher.init(Cipher.ENCRYPT_MODE, key)
29 | BiometricPrompt.CryptoObject(cipher)
30 | listener.onCryptoObjectCreated(BiometricPrompt.CryptoObject(cipher))
31 | } catch (e: KeyPermanentlyInvalidatedException) {
32 | Log.d(TAG, "Key permanently invalidated")
33 | val keyStore = KeyStore.getInstance(DEFAULT_KEYSTORE)
34 | keyStore.load(null)
35 | keyStore.deleteEntry(DEFAULT_KEY_NAME)
36 | listener.onKeyStorePermanentlyInvalidated()
37 | } catch (e: NullPointerException) {
38 | Log.d(TAG, "SecretKey not created")
39 | listener.onSecretedKeyNotCreated()
40 | }
41 | }
42 |
43 | private fun getKeyGen(): KeyGenParameterSpec {
44 | return KeyGenParameterSpec.Builder(
45 | DEFAULT_KEY_NAME, KeyProperties.PURPOSE_ENCRYPT or KeyProperties.PURPOSE_DECRYPT
46 | ).setBlockModes(KeyProperties.BLOCK_MODE_CBC).setEncryptionPaddings(KeyProperties.ENCRYPTION_PADDING_PKCS7)
47 | .setUserAuthenticationRequired(true).setInvalidatedByBiometricEnrollment(true).build()
48 | }
49 |
50 | private fun getKey(): SecretKey {
51 | val keyStore = KeyStore.getInstance(DEFAULT_KEYSTORE)
52 | keyStore.load(null)
53 | return keyStore.getKey(DEFAULT_KEY_NAME, null) as SecretKey
54 | }
55 |
56 | private fun getCipher(): Cipher {
57 | return Cipher.getInstance(
58 | KeyProperties.KEY_ALGORITHM_AES + "/"
59 | + KeyProperties.BLOCK_MODE_CBC + "/"
60 | + KeyProperties.ENCRYPTION_PADDING_PKCS7
61 | )
62 | }
63 |
64 | interface SecretKeyCreationListener {
65 | fun onCryptoObjectCreated(cryptoObject: BiometricPrompt.CryptoObject)
66 | fun onKeyStorePermanentlyInvalidated()
67 | fun onSecretedKeyNotCreated()
68 | }
69 | }
70 |
--------------------------------------------------------------------------------
/app/src/main/java/com/califeri/androidxbiometric/MainActivity.kt:
--------------------------------------------------------------------------------
1 | package com.califeri.androidxbiometric
2 |
3 | import android.os.Bundle
4 | import android.util.Log
5 | import androidx.appcompat.app.AppCompatActivity
6 | import com.google.android.material.button.MaterialButton
7 |
8 | const val TAG = "AndroidxBiometric"
9 |
10 | class MainActivity : AppCompatActivity() {
11 |
12 | private lateinit var button: MaterialButton
13 | private lateinit var createCryptoButton: MaterialButton
14 | private val biometricPromptUtils = BiometricPromptUtils(this, object : BiometricPromptUtils.BiometricListener {
15 | override fun onAuthenticationLockoutError() {
16 | Log.d(TAG, "onAuthenticationLockoutError")
17 | }
18 |
19 | override fun onAuthenticationPermanentLockoutError() {
20 | Log.d(TAG, "onAuthenticationPermanentLockoutError")
21 | }
22 |
23 | override fun onNewBiometricEnrollment() {
24 | Log.d(TAG, "onNewBiometricEnrollment")
25 | }
26 |
27 | override fun onFirstBiometricAuthentication() {
28 | Log.d(TAG, "on First Biometric Authentication")
29 | }
30 |
31 | override fun onAuthenticationSuccess() {
32 | Log.d(TAG, "onAuthenticationSuccess")
33 | }
34 |
35 | override fun onAuthenticationFailed() {
36 | Log.d(TAG, "onAuthenticationFailed")
37 | }
38 |
39 | override fun onAuthenticationError() {
40 | Log.d(TAG, "onAuthenticationError")
41 | }
42 | }, CryptoUtils())
43 |
44 | override fun onCreate(savedInstanceState: Bundle?) {
45 | super.onCreate(savedInstanceState)
46 | setContentView(R.layout.activity_main)
47 | initializeViews()
48 | }
49 |
50 | private fun initializeViews() {
51 | button = findViewById(R.id.mb_use_biometric)
52 | button.setOnClickListener {
53 | biometricPromptUtils.showBiometricPrompt(
54 | resources.getString(R.string.confirmYourBiometricsKey),
55 | resources.getString(R.string.cancelKey),
56 | confirmationRequired = false
57 | )
58 | }
59 |
60 | createCryptoButton = findViewById(R.id.mb_create_crypto_object)
61 | createCryptoButton.setOnClickListener {
62 | biometricPromptUtils.generateCryptoKey()
63 | }
64 | }
65 | }
66 |
--------------------------------------------------------------------------------
/app/src/main/res/drawable-v24/ic_launcher_foreground.xml:
--------------------------------------------------------------------------------
1 |
6 |
8 |
14 |
15 |
16 |
--------------------------------------------------------------------------------
/app/src/main/res/drawable-v24/illustration_fingerprint.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ChryssaAliferi/AndroidxBiometric/68ac7c819d7f3b62a419a390f73a0f86e0de8874/app/src/main/res/drawable-v24/illustration_fingerprint.png
--------------------------------------------------------------------------------
/app/src/main/res/drawable/ic_launcher_background.xml:
--------------------------------------------------------------------------------
1 |
2 |
7 |
10 |
15 |
20 |
25 |
30 |
35 |
40 |
45 |
50 |
55 |
60 |
65 |
70 |
75 |
80 |
85 |
90 |
95 |
100 |
105 |
110 |
115 |
120 |
125 |
130 |
135 |
140 |
145 |
150 |
155 |
160 |
165 |
170 |
171 |
--------------------------------------------------------------------------------
/app/src/main/res/drawable/ic_launcher_foreground.xml:
--------------------------------------------------------------------------------
1 |
6 |
8 |
14 |
15 |
16 |
--------------------------------------------------------------------------------
/app/src/main/res/layout/activity_main.xml:
--------------------------------------------------------------------------------
1 |
2 |
7 |
8 |
18 |
19 |
25 |
26 |
34 |
35 |
44 |
45 |
46 |
55 |
56 |
57 |
58 |
69 |
70 |
71 |
--------------------------------------------------------------------------------
/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
6 |
--------------------------------------------------------------------------------
/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
4 |
5 |
--------------------------------------------------------------------------------
/app/src/main/res/mipmap-hdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ChryssaAliferi/AndroidxBiometric/68ac7c819d7f3b62a419a390f73a0f86e0de8874/app/src/main/res/mipmap-hdpi/ic_launcher.png
--------------------------------------------------------------------------------
/app/src/main/res/mipmap-hdpi/ic_launcher_round.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ChryssaAliferi/AndroidxBiometric/68ac7c819d7f3b62a419a390f73a0f86e0de8874/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
--------------------------------------------------------------------------------
/app/src/main/res/mipmap-mdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ChryssaAliferi/AndroidxBiometric/68ac7c819d7f3b62a419a390f73a0f86e0de8874/app/src/main/res/mipmap-mdpi/ic_launcher.png
--------------------------------------------------------------------------------
/app/src/main/res/mipmap-mdpi/ic_launcher_round.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ChryssaAliferi/AndroidxBiometric/68ac7c819d7f3b62a419a390f73a0f86e0de8874/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xhdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ChryssaAliferi/AndroidxBiometric/68ac7c819d7f3b62a419a390f73a0f86e0de8874/app/src/main/res/mipmap-xhdpi/ic_launcher.png
--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ChryssaAliferi/AndroidxBiometric/68ac7c819d7f3b62a419a390f73a0f86e0de8874/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xxhdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ChryssaAliferi/AndroidxBiometric/68ac7c819d7f3b62a419a390f73a0f86e0de8874/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ChryssaAliferi/AndroidxBiometric/68ac7c819d7f3b62a419a390f73a0f86e0de8874/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ChryssaAliferi/AndroidxBiometric/68ac7c819d7f3b62a419a390f73a0f86e0de8874/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
--------------------------------------------------------------------------------
/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ChryssaAliferi/AndroidxBiometric/68ac7c819d7f3b62a419a390f73a0f86e0de8874/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
--------------------------------------------------------------------------------
/app/src/main/res/values/colors.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 | #008577
4 | #00574B
5 | #D81B60
6 |
7 | #FFFFFF
8 | #CFB5FF
9 | #6E8B99
10 | #355666
11 | #143647
12 |
13 |
--------------------------------------------------------------------------------
/app/src/main/res/values/dimen.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 | 16dp
4 | 40dp
5 |
6 | 12dp
7 | 8dp
8 | 6dp
9 |
10 | 2dp
11 |
12 | 34sp
13 | 24sp
14 | 20sp
15 | 16sp
16 |
17 |
--------------------------------------------------------------------------------
/app/src/main/res/values/ic_launcher_background.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 | #26A69A
4 |
--------------------------------------------------------------------------------
/app/src/main/res/values/strings.xml:
--------------------------------------------------------------------------------
1 |
2 | AndroidxBiometric
3 | Use your biometrics
4 | Create your crypto object
5 | Unlock with your biometrics
6 | Use your fingerprint or your face unlock to unlock the app with ease.
7 | Confirm your biometrics
8 | Cancel
9 |
10 |
--------------------------------------------------------------------------------
/app/src/main/res/values/styles.xml:
--------------------------------------------------------------------------------
1 |
2 |
3 |
8 |
9 |
18 |
19 |
28 |
29 |
38 |
39 |
43 |
44 |
54 |
55 |
65 |
66 |
--------------------------------------------------------------------------------
/build.gradle:
--------------------------------------------------------------------------------
1 | // Top-level build file where you can add configuration options common to all sub-projects/modules.
2 |
3 | buildscript {
4 | ext.kotlin_version = '1.8.10'
5 | repositories {
6 | google()
7 | jcenter()
8 |
9 | }
10 | dependencies {
11 | classpath 'com.android.tools.build:gradle:7.4.0'
12 | classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
13 | // NOTE: Do not place your application dependencies here; they belong
14 | // in the individual module build.gradle files
15 | }
16 | }
17 |
18 | allprojects {
19 | repositories {
20 | google()
21 | jcenter()
22 |
23 | }
24 | }
25 |
26 | task clean(type: Delete) {
27 | delete rootProject.buildDir
28 | }
29 |
--------------------------------------------------------------------------------
/gradle.properties:
--------------------------------------------------------------------------------
1 | # Project-wide Gradle settings.
2 | # IDE (e.g. Android Studio) users:
3 | # Gradle settings configured through the IDE *will override*
4 | # any settings specified in this file.
5 | # For more details on how to configure your build environment visit
6 | # http://www.gradle.org/docs/current/userguide/build_environment.html
7 | # Specifies the JVM arguments used for the daemon process.
8 | # The setting is particularly useful for tweaking memory settings.
9 | org.gradle.jvmargs=-Xmx1536m
10 | # When configured, Gradle will run in incubating parallel mode.
11 | # This option should only be used with decoupled projects. More details, visit
12 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
13 | # org.gradle.parallel=true
14 | # AndroidX package structure to make it clearer which packages are bundled with the
15 | # Android operating system, and which are packaged with your app's APK
16 | # https://developer.android.com/topic/libraries/support-library/androidx-rn
17 | android.useAndroidX=true
18 | # Automatically convert third-party libraries to use AndroidX
19 | android.enableJetifier=true
20 | # Kotlin code style for this project: "official" or "obsolete":
21 | kotlin.code.style=official
22 |
--------------------------------------------------------------------------------
/gradle/wrapper/gradle-wrapper.jar:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ChryssaAliferi/AndroidxBiometric/68ac7c819d7f3b62a419a390f73a0f86e0de8874/gradle/wrapper/gradle-wrapper.jar
--------------------------------------------------------------------------------
/gradle/wrapper/gradle-wrapper.properties:
--------------------------------------------------------------------------------
1 | #Sat Nov 30 12:48:19 EET 2019
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-7.5-all.zip
7 |
--------------------------------------------------------------------------------
/gradlew:
--------------------------------------------------------------------------------
1 | #!/usr/bin/env sh
2 |
3 | ##############################################################################
4 | ##
5 | ## Gradle start up script for UN*X
6 | ##
7 | ##############################################################################
8 |
9 | # Attempt to set APP_HOME
10 | # Resolve links: $0 may be a link
11 | PRG="$0"
12 | # Need this for relative symlinks.
13 | while [ -h "$PRG" ] ; do
14 | ls=`ls -ld "$PRG"`
15 | link=`expr "$ls" : '.*-> \(.*\)$'`
16 | if expr "$link" : '/.*' > /dev/null; then
17 | PRG="$link"
18 | else
19 | PRG=`dirname "$PRG"`"/$link"
20 | fi
21 | done
22 | SAVED="`pwd`"
23 | cd "`dirname \"$PRG\"`/" >/dev/null
24 | APP_HOME="`pwd -P`"
25 | cd "$SAVED" >/dev/null
26 |
27 | APP_NAME="Gradle"
28 | APP_BASE_NAME=`basename "$0"`
29 |
30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
31 | DEFAULT_JVM_OPTS=""
32 |
33 | # Use the maximum available, or set MAX_FD != -1 to use that value.
34 | MAX_FD="maximum"
35 |
36 | warn () {
37 | echo "$*"
38 | }
39 |
40 | die () {
41 | echo
42 | echo "$*"
43 | echo
44 | exit 1
45 | }
46 |
47 | # OS specific support (must be 'true' or 'false').
48 | cygwin=false
49 | msys=false
50 | darwin=false
51 | nonstop=false
52 | case "`uname`" in
53 | CYGWIN* )
54 | cygwin=true
55 | ;;
56 | Darwin* )
57 | darwin=true
58 | ;;
59 | MINGW* )
60 | msys=true
61 | ;;
62 | NONSTOP* )
63 | nonstop=true
64 | ;;
65 | esac
66 |
67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
68 |
69 | # Determine the Java command to use to start the JVM.
70 | if [ -n "$JAVA_HOME" ] ; then
71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
72 | # IBM's JDK on AIX uses strange locations for the executables
73 | JAVACMD="$JAVA_HOME/jre/sh/java"
74 | else
75 | JAVACMD="$JAVA_HOME/bin/java"
76 | fi
77 | if [ ! -x "$JAVACMD" ] ; then
78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
79 |
80 | Please set the JAVA_HOME variable in your environment to match the
81 | location of your Java installation."
82 | fi
83 | else
84 | JAVACMD="java"
85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
86 |
87 | Please set the JAVA_HOME variable in your environment to match the
88 | location of your Java installation."
89 | fi
90 |
91 | # Increase the maximum file descriptors if we can.
92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
93 | MAX_FD_LIMIT=`ulimit -H -n`
94 | if [ $? -eq 0 ] ; then
95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
96 | MAX_FD="$MAX_FD_LIMIT"
97 | fi
98 | ulimit -n $MAX_FD
99 | if [ $? -ne 0 ] ; then
100 | warn "Could not set maximum file descriptor limit: $MAX_FD"
101 | fi
102 | else
103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
104 | fi
105 | fi
106 |
107 | # For Darwin, add options to specify how the application appears in the dock
108 | if $darwin; then
109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
110 | fi
111 |
112 | # For Cygwin, switch paths to Windows format before running java
113 | if $cygwin ; then
114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"`
115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
116 | JAVACMD=`cygpath --unix "$JAVACMD"`
117 |
118 | # We build the pattern for arguments to be converted via cygpath
119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
120 | SEP=""
121 | for dir in $ROOTDIRSRAW ; do
122 | ROOTDIRS="$ROOTDIRS$SEP$dir"
123 | SEP="|"
124 | done
125 | OURCYGPATTERN="(^($ROOTDIRS))"
126 | # Add a user-defined pattern to the cygpath arguments
127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then
128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
129 | fi
130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh
131 | i=0
132 | for arg in "$@" ; do
133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option
135 |
136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition
137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
138 | else
139 | eval `echo args$i`="\"$arg\""
140 | fi
141 | i=$((i+1))
142 | done
143 | case $i in
144 | (0) set -- ;;
145 | (1) set -- "$args0" ;;
146 | (2) set -- "$args0" "$args1" ;;
147 | (3) set -- "$args0" "$args1" "$args2" ;;
148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
154 | esac
155 | fi
156 |
157 | # Escape application args
158 | save () {
159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
160 | echo " "
161 | }
162 | APP_ARGS=$(save "$@")
163 |
164 | # Collect all arguments for the java command, following the shell quoting and substitution rules
165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
166 |
167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
169 | cd "$(dirname "$0")"
170 | fi
171 |
172 | exec "$JAVACMD" "$@"
173 |
--------------------------------------------------------------------------------
/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 | set DIRNAME=%~dp0
12 | if "%DIRNAME%" == "" set DIRNAME=.
13 | set APP_BASE_NAME=%~n0
14 | set APP_HOME=%DIRNAME%
15 |
16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
17 | set DEFAULT_JVM_OPTS=
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 Windows variants
50 |
51 | if not "%OS%" == "Windows_NT" goto win9xME_args
52 |
53 | :win9xME_args
54 | @rem Slurp the command line arguments.
55 | set CMD_LINE_ARGS=
56 | set _SKIP=2
57 |
58 | :win9xME_args_slurp
59 | if "x%~1" == "x" goto execute
60 |
61 | set CMD_LINE_ARGS=%*
62 |
63 | :execute
64 | @rem Setup the command line
65 |
66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
67 |
68 | @rem Execute Gradle
69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
70 |
71 | :end
72 | @rem End local scope for the variables with windows NT shell
73 | if "%ERRORLEVEL%"=="0" goto mainEnd
74 |
75 | :fail
76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
77 | rem the _cmd.exe /c_ return code!
78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
79 | exit /b 1
80 |
81 | :mainEnd
82 | if "%OS%"=="Windows_NT" endlocal
83 |
84 | :omega
85 |
--------------------------------------------------------------------------------
/screenshot.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/ChryssaAliferi/AndroidxBiometric/68ac7c819d7f3b62a419a390f73a0f86e0de8874/screenshot.png
--------------------------------------------------------------------------------
/settings.gradle:
--------------------------------------------------------------------------------
1 | include ':app'
2 | rootProject.name='AndroidxBiometric'
3 |
--------------------------------------------------------------------------------