Source Code Aplikasi Fingerprint Android

Bagi rekan rekan yang kesulitan membuat otentikasi fingerprint di aplikasi android bisa coba source code berikut.

Di bagian app/res/layout :

activity_fingerprint.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_fingerprint"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/colorPrimary"
    >

    <LinearLayout
        android:layout_width="match_parent"
        android:id="@+id/headerLayout"
        android:orientation="vertical"
        android:gravity="center"
        android:layout_marginTop="100dp"
        android:layout_height="wrap_content">
        <ImageView
            android:layout_width="fill_parent"
            android:layout_height="170dp"
            android:src="@drawable/logo"

            android:paddingTop="2dp"
            android:layout_marginBottom="30dp"/>
        <ImageView
            android:layout_width="70dp"
            android:layout_height="70dp"
            android:src="@drawable/ic_action_fingerprint"
            android:id="@+id/icon"
            android:paddingTop="2dp"
            android:layout_marginBottom="30dp"/>

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:textColor="@color/textPrimary"
            android:textSize="24sp"
            android:text="@string/title_fingerprint"
            android:layout_marginLeft="5dp"
            android:layout_marginRight="5dp"
            android:layout_marginTop="20dp"
            android:layout_marginBottom="10dp"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textColor="@color/textPrimary"
            android:textSize="16sp"
            android:textAlignment="center"
            android:gravity="center"
            android:id="@+id/desc"
            android:text="@string/desc_fingerprint"
            android:layout_margin="16dp"
            android:paddingEnd="30dp"
            android:paddingStart="30dp"/>

        <TextView
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:textColor="@color/errorText"
            android:textSize="14sp"
            android:textAlignment="center"
            android:id="@+id/errorText"
            android:paddingEnd="30dp"
            android:paddingStart="30dp"
            android:layout_marginTop="30dp"
            android:gravity="center"/>

    </LinearLayout>

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textColor="@color/textPrimaryDark"
        android:textSize="14sp"
        android:text="@string/note"
        android:layout_marginLeft="16dp"
        android:textAlignment="center"
        android:layout_marginRight="16dp"
        android:layout_marginBottom="26dp"
        android:layout_alignParentBottom="true"/>

</RelativeLayout>

activity_home.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:fitsSystemWindows="true"
    >

    <include layout="@layout/content_home" />

</androidx.coordinatorlayout.widget.CoordinatorLayout>

content_home.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/content_home"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:showIn="@layout/activity_home">
    <ImageView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
android:src="@drawable/logo"/>
    <TextView
        android:layout_width="match_parent"
        android:text="Beranda"
        android:layout_centerVertical="true"
        android:textSize="24sp"
        android:textAlignment="center"
        android:textColor="@color/colorPrimary"
        android:layout_height="wrap_content" />

    <TextView
        android:layout_width="match_parent"
        android:text="Sukses Login"
        android:layout_alignParentBottom="true"
        android:textSize="14sp"
        android:textAlignment="center"
        android:textColor="@color/colorPrimary"
        android:layout_height="wrap_content"
        android:layout_marginBottom="24dp"/>

</RelativeLayout>
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/content_home"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:showIn="@layout/activity_home">
    <ImageView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
android:src="@drawable/logo"/>
    <TextView
        android:layout_width="match_parent"
        android:text="Beranda"
        android:layout_centerVertical="true"
        android:textSize="24sp"
        android:textAlignment="center"
        android:textColor="@color/colorPrimary"
        android:layout_height="wrap_content" />

    <TextView
        android:layout_width="match_parent"
        android:text="Sukses Login"
        android:layout_alignParentBottom="true"
        android:textSize="14sp"
        android:textAlignment="center"
        android:textColor="@color/colorPrimary"
        android:layout_height="wrap_content"
        android:layout_marginBottom="24dp"/>

</RelativeLayout>

Di bagian app/res/values:

strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="colorPrimary">#218851</color>
    <color name="colorPrimaryDark">#00574B</color>
    <color name="colorAccent">#082E17</color>

    <color name="textPrimary">#f5f5f5</color>
    <color name="textPrimaryDark">#95aab4</color>
    <color name="errorText">#ff7878</color>

</resources>

Di bagian app/src/Java:

Fingerprint_Activity.java

package com.example.apppost;

import android.Manifest;
import android.annotation.TargetApi;
import android.app.KeyguardManager;
import android.content.pm.PackageManager;
import android.hardware.fingerprint.FingerprintManager;
import android.os.Build;
import android.security.keystore.KeyGenParameterSpec;
import android.security.keystore.KeyPermanentlyInvalidatedException;
import android.security.keystore.KeyProperties;
import android.os.Bundle;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;
import androidx.core.app.ActivityCompat;

import java.io.IOException;
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;

public class FingerprintActivity extends AppCompatActivity {

    private KeyStore keyStore;
    // Variable used for storing the key in the Android Keystore container
    private static final String KEY_NAME = "saibakun";
    private Cipher cipher;
    private TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_fingerprint);

        // Initializing both Android Keyguard Manager and Fingerprint Manager
        KeyguardManager keyguardManager = (KeyguardManager) getSystemService(KEYGUARD_SERVICE);
        FingerprintManager fingerprintManager = (FingerprintManager) getSystemService(FINGERPRINT_SERVICE);

        textView = (TextView) findViewById(R.id.errorText);

        // Check whether the device has a Fingerprint sensor.
        if(!fingerprintManager.isHardwareDetected()){
            /**
             * An error message will be displayed if the device does not contain the fingerprint hardware.
             * However if you plan to implement a default authentication method,
             * you can redirect the user to a default authentication activity from here.
             * Example:
             * Intent intent = new Intent(this, DefaultAuthenticationActivity.class);
             * startActivity(intent);
             */
            textView.setText("Your Device does not have a Fingerprint Sensor");
        }else {
            // Checks whether fingerprint permission is set on manifest
            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.USE_FINGERPRINT) != PackageManager.PERMISSION_GRANTED) {
                textView.setText("Fingerprint authentication permission not enabled");
            }else{
                // Check whether at least one fingerprint is registered
                if (!fingerprintManager.hasEnrolledFingerprints()) {
                    textView.setText("Register at least one fingerprint in Settings");
                }else{
                    // Checks whether lock screen security is enabled or not
                    if (!keyguardManager.isKeyguardSecure()) {
                        textView.setText("Lock screen security not enabled in Settings");
                    }else{
                        generateKey();

                        if (cipherInit()) {
                            FingerprintManager.CryptoObject cryptoObject = new FingerprintManager.CryptoObject(cipher);
                            FingerprintHandler helper = new FingerprintHandler(this);
                            helper.startAuth(fingerprintManager, cryptoObject);
                        }
                    }
                }
            }
        }
    }

    @TargetApi(Build.VERSION_CODES.M)
    protected void generateKey() {
        try {
            keyStore = KeyStore.getInstance("AndroidKeyStore");
        } catch (Exception e) {
            e.printStackTrace();
        }

        KeyGenerator keyGenerator;
        try {
            keyGenerator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStore");
        } catch (NoSuchAlgorithmException | NoSuchProviderException e) {
            throw new RuntimeException("Failed to get KeyGenerator instance", e);
        }

        try {
            keyStore.load(null);
            keyGenerator.init(new
                    KeyGenParameterSpec.Builder(KEY_NAME,
                    KeyProperties.PURPOSE_ENCRYPT |
                            KeyProperties.PURPOSE_DECRYPT)
                    .setBlockModes(KeyProperties.BLOCK_MODE_CBC)
                    .setUserAuthenticationRequired(true)
                    .setEncryptionPaddings(
                            KeyProperties.ENCRYPTION_PADDING_PKCS7)
                    .build());
            keyGenerator.generateKey();
        } catch (NoSuchAlgorithmException |
                InvalidAlgorithmParameterException
                | CertificateException | IOException e) {
            throw new RuntimeException(e);
        }
    }

    @TargetApi(Build.VERSION_CODES.M)
    public boolean cipherInit() {
        try {
            cipher = Cipher.getInstance(KeyProperties.KEY_ALGORITHM_AES + "/" + KeyProperties.BLOCK_MODE_CBC + "/" + KeyProperties.ENCRYPTION_PADDING_PKCS7);
        } catch (NoSuchAlgorithmException | NoSuchPaddingException e) {
            throw new RuntimeException("Failed to get Cipher", e);
        }

        try {
            keyStore.load(null);
            SecretKey key = (SecretKey) keyStore.getKey(KEY_NAME,
                    null);
            cipher.init(Cipher.ENCRYPT_MODE, key);
            return true;
        } catch (KeyPermanentlyInvalidatedException e) {
            return false;
        } catch (KeyStoreException | CertificateException | UnrecoverableKeyException | IOException | NoSuchAlgorithmException | InvalidKeyException e) {
            throw new RuntimeException("Failed to init Cipher", e);
        }
    }
}

FingerprintHandler.java

package com.example.apppost;

import android.Manifest;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.hardware.fingerprint.FingerprintManager;
import android.os.CancellationSignal;
import android.widget.TextView;

import androidx.core.app.ActivityCompat;

public class FingerprintHandler extends FingerprintManager.AuthenticationCallback {

    private Context context;

    // Constructor
    public FingerprintHandler(Context mContext) {
        context = mContext;
    }

    public void startAuth(FingerprintManager manager, FingerprintManager.CryptoObject cryptoObject) {
        CancellationSignal cancellationSignal = new CancellationSignal();
        if (ActivityCompat.checkSelfPermission(context, Manifest.permission.USE_FINGERPRINT) != PackageManager.PERMISSION_GRANTED) {
            return;
        }
        manager.authenticate(cryptoObject, cancellationSignal, 0, this, null);
    }

    @Override
    public void onAuthenticationError(int errMsgId, CharSequence errString) {
        this.update("Fingerprint Authentication error\n" + errString);
    }

    @Override
    public void onAuthenticationHelp(int helpMsgId, CharSequence helpString) {
        this.update("Fingerprint Authentication help\n" + helpString);
    }

    @Override
    public void onAuthenticationFailed() {
        this.update("Fingerprint Authentication failed.");
    }

    @Override
    public void onAuthenticationSucceeded(FingerprintManager.AuthenticationResult result) {
        ((Activity) context).finish();
        Intent intent = new Intent(context, HomeActivity.class);
        context.startActivity(intent);
    }

    private void update(String e){
        TextView textView = (TextView) ((Activity)context).findViewById(R.id.errorText);
        textView.setText(e);
    }

}

HomeActivity.java

package com.example.apppost;

import android.os.Bundle;
import android.widget.Toolbar;

import androidx.appcompat.app.AppCompatActivity;

public class HomeActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_home);
//        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
//        setSupportActionBar(toolbar);

    }

}

Android Manifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.apppost">

    <uses-permission android:name="android.permission.USE_FINGERPRINT" />
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".FingerprintActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    <activity
        android:name=".HomeActivity"
        android:label="@string/title_activity_home"
        android:theme="@style/AppTheme"></activity>

    </application>
</manifest>

Hasilnya :

Source Code Aplikasi Fingerprint Android - gambar 1

Source Code Aplikasi Fingerprint Android

activity_home.xml

content_home.xml

FingerprintHandler.java

HomeActivity.java

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activity_home.xml

content_home.xml

FingerprintHandler.java

HomeActivity.java

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