实例介绍
【实例简介】
【实例截图】
【实例截图】
【核心代码】
package com.example.fingureprint;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import javax.crypto.KeyGenerator;
import com.example.fingureprint.callback.CryptoObjectHelper;
import com.example.fingureprint.callback.MyAuthCallback;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.hardware.fingerprint.FingerprintManager;
import android.os.Build;
import android.os.Build.VERSION;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.security.keystore.KeyProperties;
import android.support.v4.hardware.fingerprint.FingerprintManagerCompat;
import android.support.v4.os.CancellationSignal;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.TextView;
import android.widget.Toast;
public class FingureAriseActivity extends Activity {
private KeyStore mKeyStore;
private KeyGenerator mKeyGenerator;
private Handler handler;
private FingerprintManagerCompat fingerprintManager;
private MyAuthCallback myAuthCallback;
private CancellationSignal cancellationSignal;
private Dialog dialog;
public static final int MSG_AUTH_SUCCESS = 100;
public static final int MSG_AUTH_FAILED = 101;
public static final int MSG_AUTH_ERROR = 102;
public static final int MSG_AUTH_HELP = 103;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_fingure_arise);
initFingure();
}
private void initFingure() {
fingerprintManager = FingerprintManagerCompat.from(this);
if (!fingerprintManager.isHardwareDetected()) {
// no fingerprint sensor is detected, show dialog to tell user.
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("没有指纹传感器");
builder.setMessage("您的设备上没有指纹传感器，点击取消退出");
builder.setIcon(android.R.drawable.stat_sys_warning);
builder.setCancelable(false);
builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
// show this dialog.
builder.create().show();
} else if (!fingerprintManager.hasEnrolledFingerprints()) {
// no fingerprint image has been enrolled.
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("没有指纹登记");
builder.setMessage("没有指纹登记，请到设置->安全中设置");
builder.setIcon(android.R.drawable.stat_sys_warning);
builder.setCancelable(false);
builder.setNegativeButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
finish();
}
});
// show this dialog
builder.create().show();
} else {
try {
setFingurePws();
initFingureDialog();
} catch (Exception e) {
e.printStackTrace();
}
}
}
private void setFingurePws() {
// TODO Auto-generated method stub
try {
mKeyStore = KeyStore.getInstance("AndroidKeyStroe");
} catch (KeyStoreException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
mKeyGenerator = KeyGenerator.getInstance(KeyProperties.KEY_ALGORITHM_AES, "AndroidKeyStroe");
} catch (NoSuchAlgorithmException e) {
e.printStackTrace();
} catch (NoSuchProviderException e) {
e.printStackTrace();
}
handler = new Handler() {
@Override
public void handleMessage(Message msg) {
super.handleMessage(msg);
// Log.e(TAG, "msg: " msg.what " ,arg1: " msg.arg1);
switch (msg.what) {
case MSG_AUTH_SUCCESS:
setResultInfo("指纹识别");
cancellationSignal = null;
break;
case MSG_AUTH_FAILED:
setResultInfo("指纹识别失败");
cancellationSignal = null;
break;
case MSG_AUTH_ERROR:
handleErrorCode(msg.arg1);
break;
case MSG_AUTH_HELP:
handleHelpCode(msg.arg1);
break;
}
}
};
myAuthCallback = new MyAuthCallback(handler);
try {
CryptoObjectHelper cryptoObjectHelper = new CryptoObjectHelper();
if (cancellationSignal == null) {
cancellationSignal = new CancellationSignal();
}
fingerprintManager.authenticate(cryptoObjectHelper.buildCryptoObject(),0, cancellationSignal, myAuthCallback, null);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
Toast.makeText(FingureAriseActivity.this, "指纹识别初始化失败，请重试！", Toast.LENGTH_SHORT).show();
}
}
private void handleErrorCode(int code) {
switch (code) {
case FingerprintManager.FINGERPRINT_ERROR_CANCELED:
setResultInfo("切换手势解锁");
break;
case FingerprintManager.FINGERPRINT_ERROR_HW_UNAVAILABLE:
setResultInfo("硬件不可用，请稍后再试");
break;
case FingerprintManager.FINGERPRINT_ERROR_LOCKOUT:
setResultInfo("locked");
break;
case FingerprintManager.FINGERPRINT_ERROR_NO_SPACE:
setResultInfo("无法完成操作，因为还没有足够的存储空间来完成操作");
break;
case FingerprintManager.FINGERPRINT_ERROR_TIMEOUT:
setResultInfo("操作超时，请重试");
break;
case FingerprintManager.FINGERPRINT_ERROR_UNABLE_TO_PROCESS:
setResultInfo("指纹图像无法识别，请重试");
break;
}
}
private void setResultInfo(String stringId) {
if ("指纹识别".equals(stringId)) {
Toast.makeText(FingureAriseActivity.this, "已解锁", 0).show();
finish();
}else if("locked".equals(stringId)){
// Log.i("TAG--->", "指纹传感器被锁");
Toast.makeText(getApplicationContext(), "识别错误次数太多,已切换到手势", 0).show();
if(cancellationSignal!=null){
cancellationSignal.cancel();
cancellationSignal = null;
}
dialog.dismiss();
}else{
Toast.makeText(FingureAriseActivity.this, stringId, 0).show();
// ShowToast.showToast(FingureAriseActivity.this, stringId);
}
}
private void handleHelpCode(int code) {
switch (code) {
case FingerprintManager.FINGERPRINT_ACQUIRED_GOOD:
setResultInfo("获得的图像是好的");
break;
case FingerprintManager.FINGERPRINT_ACQUIRED_IMAGER_DIRTY:
setResultInfo("由于传感器上的可疑或检测到的灰尘，指纹图像太嘈杂了。");
break;
case FingerprintManager.FINGERPRINT_ACQUIRED_INSUFFICIENT:
setResultInfo("指纹图像太嘈杂了");
break;
case FingerprintManager.FINGERPRINT_ACQUIRED_PARTIAL:
setResultInfo("请紧按指纹传感器");
break;
case FingerprintManager.FINGERPRINT_ACQUIRED_TOO_FAST:
setResultInfo("手指移动过快");
break;
case FingerprintManager.FINGERPRINT_ACQUIRED_TOO_SLOW:
setResultInfo("请移动手指");
break;
}
}
/**
* 弹出指纹识别的弹框
*/
private void initFingureDialog(){
dialog = new Dialog(FingureAriseActivity.this, R.style.customDialog);
dialog.setContentView(R.layout.zhiwen_customdialog);
dialog.setCanceledOnTouchOutside(false);
TextView tv_gesture_lock = (TextView) dialog.findViewById(R.id.tv_gesture_lock);
tv_gesture_lock.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if(cancellationSignal!=null){
cancellationSignal.cancel();
cancellationSignal = null;
}
dialog.dismiss();
}
});
TextView tv_zhiwen_detail = (TextView) dialog.findViewById(R.id.tv_zhiwen_detail);
tv_zhiwen_detail.setText("DEMO的 Touch ID" "\n" "请验证已有指纹");
dialog.show();
}
}
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