解决方法:

1. 导入相关库和依赖项

import android.Manifest;
import android.content.DialogInterface;
import android.content.pm.PackageManager;
import android.hardware.biometrics.BiometricPrompt;
import android.os.Build;
import android.os.CancellationSignal;
import android.support.annotation.NonNull;
import android.support.annotation.RequiresApi;
import android.support.v4.app.ActivityCompat;
import android.support.v4.hardware.fingerprint.FingerprintManagerCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.Toast;

2. 检查设备是否支持指纹识别

private boolean isFingerprintAvailable() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        FingerprintManagerCompat fingerprintManager = FingerprintManagerCompat.from(this);
        return fingerprintManager.hasEnrolledFingerprints() && fingerprintManager.isHardwareDetected();
    }
    return false;
}

3. 申请指纹权限

private void requestFingerprintPermission() {
    if (ActivityCompat.checkSelfPermission(this, Manifest.permission.USE_FINGERPRINT) != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.USE_FINGERPRINT}, REQUEST_FINGERPRINT_PERMISSION);
    }
}

请确保在AndroidManifest.xml文件中已添加指纹权限

4. 处理指纹权限请求结果

@Override
public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
    super.onRequestPermissionsResult(requestCode, permissions, grantResults);
    if (requestCode == REQUEST_FINGERPRINT_PERMISSION) {
        if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
            // 权限被授予
            showFingerprintDialog();
        } else {
            // 权限被拒绝
            Toast.makeText(this, "无法使用指纹功能", Toast.LENGTH_SHORT).show();
        }
    }
}

5. 显示指纹识别对话框

private void showFingerprintDialog() {
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
        showBiometricPrompt();
    } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        showFingerprintManager();
    }
}

6. 使用FingerprintManagerCompat进行指纹识别（适用于Android 6.0及以上版本）

@RequiresApi(api = Build.VERSION_CODES.M)
private void showFingerprintManager() {
    FingerprintManagerCompat fingerprintManager = FingerprintManagerCompat.from(this);
    fingerprintManager.authenticate(null, 0, new CancellationSignal(), new FingerprintManagerCompat.AuthenticationCallback() {
        @Override
        public void onAuthenticationError(int errMsgId, CharSequence errString) {
            super.onAuthenticationError(errMsgId, errString);
            // 处理认证错误
        }

        @Override
        public void onAuthenticationHelp(int helpMsgId, CharSequence helpString) {
            super.onAuthenticationHelp(helpMsgId, helpString);
            // 处理认证帮助信息
        }

        @Override
        public void onAuthenticationSucceeded(FingerprintManagerCompat.AuthenticationResult result) {
            super.onAuthenticationSucceeded(result);
            // 认证成功
        }

        @Override
        public void onAuthenticationFailed() {
            super.onAuthenticationFailed();
            // 认证失败
        }
    }, null);
}

7. 使用BiometricPrompt进行指纹识别（适用于Android 9.0及以上版本）

@RequiresApi(api = Build.VERSION_CODES.P)
private void showBiometricPrompt() {
    BiometricPrompt biometricPrompt = new BiometricPrompt.Builder(this)
            .setTitle("指纹认证")
            .setSubtitle("请验证指纹")
            .setDescription("用于安全认证")
            .setNegativeButton("取消", this.getMainExecutor(), new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialogInterface, int i) {
                    // 取消认证
                }
            })
            .build();
    biometricPrompt.authenticate(new CancellationSignal(), this.getMainExecutor(), new BiometricPrompt.AuthenticationCallback() {
        @Override
        public void onAuthenticationError(int errorCode, CharSequence errString) {
            super.onAuthenticationError(errorCode, errString);
            // 处理认证错误
        }

        @Override
        public void onAuthenticationSucceeded(Biometric