FingerprintDialog.java
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package com.polysoft.nafmii.fragment.dialog;
import android.annotation.TargetApi;
import android.app.KeyguardManager;
import android.hardware.fingerprint.FingerprintManager;
import android.os.Bundle;
import android.os.CancellationSignal;
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 androidx.fragment.app.FragmentManager;
import com.polysoft.nafmii.bean.Result;
import com.polysoft.nafmii.utils.CtxUtils;
import com.polysoft.nafmii.utils.ToastUtils;
import com.whaty.nafmii.R;
import java.util.Objects;
@TargetApi(23)
public class FingerprintDialog extends DialogFragment {
private FingerprintManager mFingerprintMgr;
private CancellationSignal mCancellationSignal;
private TextView errorMsg;
private AuthBackListener mAuthBackListener;
public static void show(FragmentManager manager, AuthBackListener listener) {
FingerprintDialog dialog = new FingerprintDialog();
dialog.setAuthBackListener(listener);
if (dialog.isSupportFingerprint()) {
dialog.show(manager, "Fingerprint");
}
}
@Override
public void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setStyle(DialogFragment.STYLE_NORMAL, android.R.style.Theme_Material_Light_Dialog);
super.setCancelable(false);
this.mFingerprintMgr = CtxUtils.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) -> cancel());
return view;
}
@Override
public void onResume() {
super.onResume();
this.start();
}
@Override
public void onPause() {
super.onPause();
this.stop();
}
public void setAuthBackListener(AuthBackListener listener) {
this.mAuthBackListener = listener;
}
private void start() {
this.mCancellationSignal = new CancellationSignal();
mFingerprintMgr.authenticate(null, this.mCancellationSignal, 0, new AuthBackImpl(), null);
}
private void stop() {
if (null != this.mCancellationSignal) {
this.mCancellationSignal.cancel();
this.mCancellationSignal = null;
}
}
private void cancel() {
this.closeBack(Result.success("cancel"));
}
private void success() {
this.closeBack(Result.success("ok"));
}
private void error(String error) {
this.closeBack(Result.fail(error));
}
private void closeBack(Result result) {
super.dismiss();
if (null != this.mAuthBackListener) {
this.mAuthBackListener.onAuthBack(result);
}
}
@Override
public void show(@NonNull FragmentManager manager, @Nullable String tag) {
super.show(manager, tag);
}
private boolean isSupportFingerprint() {
FingerprintManager fingerprintMgr = CtxUtils.getSystemService(FingerprintManager.class);
if (null != fingerprintMgr && !fingerprintMgr.isHardwareDetected()) {
this.error("您的手机不支持指纹功能");
return false;
}
KeyguardManager keyMgr = CtxUtils.getSystemService(KeyguardManager.class);
if (keyMgr != null && !keyMgr.isKeyguardSecure()) {
this.error("您还未设置锁屏，请先设置锁屏并添加一个指纹");
return false;
}
if (null != fingerprintMgr && !fingerprintMgr.hasEnrolledFingerprints()) {
this.error("您至少需要在系统设置中添加一个指纹");
return false;
}
return true;
}
private class AuthBackImpl extends FingerprintManager.AuthenticationCallback {
@Override
public void onAuthenticationError(int errorCode, CharSequence errString) {
errorMsg.setText(errString);
}
@Override
public void onAuthenticationHelp(int helpCode, CharSequence helpString) {
errorMsg.setText(helpString);
}
@Override
public void onAuthenticationSucceeded(FingerprintManager.AuthenticationResult result) {
ToastUtils.showLong("认证成功");
success();
}
@Override
public void onAuthenticationFailed() {
errorMsg.setText("指纹认证失败，请再试一次");
}
}
public interface AuthBackListener {
void onAuthBack(Result result);
}
}