├── .gitignore
├── app
├── .gitignore
├── build.gradle
├── proguard-rules.pro
└── src
│ ├── androidTest
│ └── java
│ │ └── com
│ │ └── androidessence
│ │ └── fingerprintdialogsample
│ │ └── ExampleInstrumentedTest.kt
│ ├── main
│ ├── AndroidManifest.xml
│ ├── java
│ │ └── com
│ │ │ └── androidessence
│ │ │ └── fingerprintdialogsample
│ │ │ ├── FingerprintController.kt
│ │ │ ├── FingerprintDialog.kt
│ │ │ └── MainActivity.kt
│ └── res
│ │ ├── drawable-v24
│ │ └── ic_launcher_foreground.xml
│ │ ├── drawable
│ │ ├── ic_check_white_24dp.xml
│ │ ├── ic_error_white_24dp.xml
│ │ ├── ic_fingerprint_white_24dp.xml
│ │ └── ic_launcher_background.xml
│ │ ├── layout
│ │ ├── activity_main.xml
│ │ ├── content_main.xml
│ │ └── dialog_fingerprint.xml
│ │ ├── menu
│ │ └── menu_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
│ │ ├── dimens.xml
│ │ ├── strings.xml
│ │ └── styles.xml
│ └── test
│ └── java
│ └── com
│ └── androidessence
│ └── fingerprintdialogsample
│ └── ExampleUnitTest.kt
├── build.gradle
├── gradle.properties
├── gradle
└── wrapper
│ ├── gradle-wrapper.jar
│ └── gradle-wrapper.properties
├── gradlew
├── gradlew.bat
└── settings.gradle
/.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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/app/.gitignore:
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1 | /build
2 |
--------------------------------------------------------------------------------
/app/build.gradle:
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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/proguard-rules.pro:
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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:
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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:
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1 |
2 |
4 |
5 |
6 |
7 |
14 |
18 |
19 |
20 |
21 |
22 |
23 |
24 |
25 |
26 |
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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:
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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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/app/src/main/java/com/androidessence/fingerprintdialogsample/MainActivity.kt:
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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/menu/menu_main.xml:
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11 |
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/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml:
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1 |
2 |
3 |
4 |
5 |
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/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml:
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2 |
3 |
4 |
5 |
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/app/src/main/res/mipmap-hdpi/ic_launcher.png:
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/app/src/main/res/mipmap-hdpi/ic_launcher_round.png:
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/app/src/main/res/mipmap-mdpi/ic_launcher.png:
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/app/src/main/res/mipmap-mdpi/ic_launcher_round.png:
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/app/src/main/res/mipmap-xhdpi/ic_launcher.png:
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/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png:
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/app/src/main/res/mipmap-xxhdpi/ic_launcher.png:
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/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png:
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/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png:
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https://raw.githubusercontent.com/androidessence/FingerprintDialogSample/772db3b6a1edbe58883f9409f4a824930218f610/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
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/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png:
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/app/src/main/res/values/colors.xml:
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1 |
2 |
3 | #3F51B5
4 | #303F9F
5 | #FF4081
6 | #F44336
7 | #000000
8 | #4CAF50
9 |
10 |
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/app/src/main/res/values/dimens.xml:
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1 |
2 | 16dp
3 |
4 |
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/app/src/main/res/values/strings.xml:
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1 |
2 | Fingerprint Dialog Sample
3 | Settings
4 | Click the button below to authenticate your fingerprint.
5 | Cancel
6 | Fingerprint not recognized. Try again.
7 | Touch sensor.
8 | Fingerprint recognized.
9 |
10 |
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/app/src/main/res/values/styles.xml:
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1 |
2 |
3 |
4 |
10 |
11 |
15 |
16 |
17 |
18 |
19 |
20 |
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/app/src/test/java/com/androidessence/fingerprintdialogsample/ExampleUnitTest.kt:
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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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/build.gradle:
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1 | // Top-level build file where you can add configuration options common to all sub-projects/modules.
2 |
3 | buildscript {
4 | ext.kotlin_version = '1.2.10'
5 | repositories {
6 | google()
7 | jcenter()
8 | }
9 | dependencies {
10 | classpath 'com.android.tools.build:gradle:3.0.1'
11 | classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
12 |
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 | task clean(type: Delete) {
26 | delete rootProject.buildDir
27 | }
28 |
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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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/gradle/wrapper/gradle-wrapper.jar:
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https://raw.githubusercontent.com/androidessence/FingerprintDialogSample/772db3b6a1edbe58883f9409f4a824930218f610/gradle/wrapper/gradle-wrapper.jar
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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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/gradlew:
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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 |
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/gradlew.bat:
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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 |
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/settings.gradle:
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1 | include ':app'
2 |
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