1、指紋工具類：
/**
* 作者：created by meixi
* 郵箱：13164716840@163.com
* 日期：2018/8/30 09
*/
public class FingerprintManagerUtil {
private static FingerprintManagerCompat fingerprintManagerCompat;
private static CancellationSignal cancellationSignal;
private FingerprintManagerUtil() {
}
/**
* 開始進行指紋驗證
*
* @param context 上下文
* @param fingerprintListener 指紋驗證回撥介面
*/
public static void startFingerprinterVerification(Context context, final FingerprintListener fingerprintListener) {
fingerprintManagerCompat = FingerprintManagerCompat.from(context);
// 是否支援指紋驗證
if (fingerprintManagerCompat == null || !fingerprintManagerCompat.isHardwareDetected()) {
if (fingerprintListener != null)
fingerprintListener.onNonsupport();
return;
}
// 是否錄入了指紋
if (!fingerprintManagerCompat.hasEnrolledFingerprints()) {
if (fingerprintListener != null)
fingerprintListener.onEnrollFailed();
return;
}
// 回撥可以開始進行認證
if (fingerprintListener != null)
fingerprintListener.onAuthenticationStart();
cancellationSignal = new CancellationSignal();
fingerprintManagerCompat.authenticate(null, 0, cancellationSignal, new FingerprintManagerCompat.AuthenticationCallback() {
@Override
public void onAuthenticationError(int errMsgId, CharSequence errString) {
// 驗證出錯回撥，指紋感測器會關閉一段時間
super.onAuthenticationError(errMsgId, errString);
if (fingerprintListener != null)
fingerprintListener.onAuthenticationError(errMsgId, errString);
}
@Override
public void onAuthenticationHelp(int helpMsgId, CharSequence helpString) {
// 驗證幫助回撥
super.onAuthenticationHelp(helpMsgId, helpString);
if (fingerprintListener != null)
fingerprintListener.onAuthenticationHelp(helpMsgId, helpString);
}
@Override
public void onAuthenticationSucceeded(FingerprintManagerCompat.AuthenticationResult result) {
// 驗證成功
super.onAuthenticationSucceeded(result);
if (fingerprintListener != null)
fingerprintListener.onAuthenticationSucceeded(result);
}
@Override
public void onAuthenticationFailed() {
// 驗證失敗 指紋驗證失敗後,指紋感測器不會立即關閉指紋驗證,
// 系統會提供5次重試的機會,即呼叫5次onAuthenticationFailed()後,才會呼叫onAuthenticationError()
super.onAuthenticationFailed();
if (fingerprintListener != null)
fingerprintListener.onAuthenticationFailed();
}
}, null);
}
/**
* 取消指紋驗證
*/
public static void cancel() {
if (cancellationSignal != null && !cancellationSignal.isCanceled())
cancellationSignal.cancel();
}
/**
* 指紋驗證回撥監聽
*/
public interface FingerprintListener {
/**
* 手機或系統不支援指紋驗證時回撥
*/
void onNonsupport();
/**
* 手機支援指紋驗證，但是還沒有錄入指紋時回撥
*/
void onEnrollFailed();
/**
* 可以進行指紋驗證時回撥，該方法主要作用用於在進行指紋驗證之前做一些操作，比如彈出對話方塊
*/
void onAuthenticationStart();
/**
* 指紋驗證成功時回撥
*
* @param result {@link FingerprintManagerCompat.AuthenticationResult} 物件
*/
void onAuthenticationSucceeded(FingerprintManagerCompat.AuthenticationResult result);
/**
* 驗證失敗時回撥
* <br/>
* 指紋驗證失敗後,指紋感測器不會立即關閉指紋驗證，系統會提供5次重試的機會,即呼叫
* 5次 {@link #onAuthenticationFailed()} 後，才會呼叫 {@link #onAuthenticationError(int, CharSequence)}
*/
void onAuthenticationFailed();
/**
* 驗證出錯時回撥，指紋感測器會關閉一段時間，具體時間根據廠商不同有所區別
*
* @param errMsgId 錯誤資訊id
* @param errString 錯誤資訊描述
*/
void onAuthenticationError(int errMsgId, CharSequence errString);
/**
* 驗證幫助回撥
*
* @param helpMsgId 幫助資訊id
* @param helpString 幫助資訊描述
*/
void onAuthenticationHelp(int helpMsgId, CharSequence helpString);
}
/**
* FingerprintListener 回撥監聽介面卡，減少不必要方法的重寫，只需要重寫需要處理的對應方法即可
*/
public abstract static class FingerprintListenerAdapter implements FingerprintListener {
@Override
public void onNonsupport() {
}
@Override
public void onEnrollFailed() {
}
@Override
public void onAuthenticationStart() {
}
@Override
public void onAuthenticationFailed() {
}
@Override
public void onAuthenticationError(int errMsgId, CharSequence errString) {
}
@Override
public void onAuthenticationHelp(int helpMsgId, CharSequence helpString) {
}
}
}
2、activity呼叫以及指紋識別驗證回撥方法（呼叫後，觸控手機指紋按鈕即可實現指紋識別）
private AlertDialog alertDialog;
// 呼叫指紋驗證方法
private void startVerification() {
FingerprintManagerUtil.startFingerprinterVerification(this,
new FingerprintManagerUtil.FingerprintListenerAdapter() {
@Override
public void onAuthenticationStart() {
AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this)
.setTitle("指紋驗證")
.setMessage("指紋驗證測試")
.setCancelable(false)
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
FingerprintManagerUtil.cancel();
}
});
alertDialog = builder.create();
alertDialog.show();
}
@Override
public void onNonsupport() {
Log.i("MainActivity", "onNonsupport");
Toast.makeText(MainActivity.this, "不支援指紋驗證", Toast.LENGTH_SHORT).show();
}
@Override
public void onEnrollFailed() {
Log.i("MainActivity", "onEnrollFailed");
Toast.makeText(MainActivity.this, "沒有錄入指紋", Toast.LENGTH_SHORT).show();
}
@Override
public void onAuthenticationSucceeded(FingerprintManagerCompat.AuthenticationResult result) {
alertDialog.dismiss();
Log.i("MainActivity", "onAuthenticationSucceeded result = [" + result + "]");
Toast.makeText(MainActivity.this, "驗證成功", Toast.LENGTH_SHORT).show();
}
@Override
public void onAuthenticationFailed() {
Log.i("MainActivity", "onAuthenticationFailed");
Toast.makeText(MainActivity.this, "驗證失敗", Toast.LENGTH_SHORT).show();
}
@Override
public void onAuthenticationError(int errMsgId, CharSequence errString) {
Log.i("MainActivity", "onAuthenticationError errMsgId = [" + errMsgId + "], errString = [" + errString + "]");
Toast.makeText(MainActivity.this, "提示: " + errString, Toast.LENGTH_SHORT).show();
}
@Override
public void onAuthenticationHelp(int helpMsgId, CharSequence helpString) {
Log.i("MainActivity", "onAuthenticationHelp helpMsgId = [" + helpMsgId + "], helpString = [" + helpString + "]");
Toast.makeText(MainActivity.this, "提示: " + helpString, Toast.LENGTH_SHORT).show();
}
});
}
需要指紋識別許可權：
<uses-permission android:name="android.permission.USE_FINGERPRINT" />