Android 指纹验证

在 AndroidManifest.xml文件中声明权限

    <!--指纹权限声明-->
    <uses-permission android:name="android.permission.USE_BIOMETRIC" />

在项目中创建 BaseFingerprintAuthentication.java文件

import android.content.Context;
import android.content.DialogInterface;
import android.hardware.biometrics.BiometricPrompt;
import android.os.CancellationSignal;

public abstract class BaseFingerprintAuthentication {
    public static final String TITLE = "指纹验证";
    public static final String DESCRIBE = "描述";

    public static final String TEXT = "取消";
    private BiometricPrompt mBiometricPrompt;
    private CancellationSignal mCancellationSignal;
    private BiometricPrompt.AuthenticationCallback mAuthenticationCallback;

    protected abstract Context getContext();

    /**
     * 处理指纹验证错误
     *
     * @param errorCode
     * @param errString
     */