FingerprintDialog.java

package com.polysoft.nafmii.fragment.dialog;

import android.annotation.TargetApi;
import android.hardware.fingerprint.FingerprintManager;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.DialogFragment;

import com.whaty.nafmii.R;


@TargetApi(23)
public class FingerprintDialog extends DialogFragment {

    private FingerprintManager mFingerprintMgr;

    private TextView errorMsg;

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        super.setStyle(DialogFragment.STYLE_NORMAL, android.R.style.Theme_Material_Light_Dialog);
        this.mFingerprintMgr = super.getContext().getSystemService(FingerprintManager.class);
    }

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable  Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.fingerprint_dialog, container, false);
        this.errorMsg = view.findViewById(R.id.error_msg);
        view.findViewById(R.id.cancel).setOnClickListener((v) ->{
            dismiss();
        });
        return view;
    }
}