Android 指纹识别 示例源码

package com.zwh.rxfingerprinter;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.view.View;import android.widget.Toast;import rx.Subscriber;import rx.Subscription;import zwh.com.lib.FPerException;import zwh.com.lib.RxFingerPrinter;public class MainActivity extends AppCompatActivity { private FingerPrinterView fingerPrinterView; private int fingerErrorNum = 0; // 指纹错误次数 RxFingerPrinter rxfingerPrinter; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); fingerPrinterView = (FingerPrinterView) findViewById(R.id.fpv); fingerPrinterView.setOnStateChangedListener(new FingerPrinterView.OnStateChangedListener() { @Override public void onChange(int state) { if (state == FingerPrinterView.STATE_CORRECT_PWD) { fingerErrorNum = 0; Toast.makeText(MainActivity.this, "指纹识别成功", Toast.LENGTH_SHORT).show(); } if (state == FingerPrinterView.STATE_WRONG_PWD) { Toast.makeText(MainActivity.this, "指纹识别失败，还剩" (5-fingerErrorNum) "次机会", Toast.LENGTH_SHORT).show(); fingerPrinterView.setState(FingerPrinterView.STATE_NO_SCANING); } } }); rxfingerPrinter = new RxFingerPrinter(this); findViewById(R.id.btn_open).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { fingerErrorNum = 0; rxfingerPrinter.unSubscribe(this); Subscription subscription = rxfingerPrinter.begin().subscribe(new Subscriber<Boolean>() { @Override public void onStart() { super.onStart(); if (fingerPrinterView.getState() == FingerPrinterView.STATE_SCANING) { return; } else if (fingerPrinterView.getState() == FingerPrinterView.STATE_CORRECT_PWD || fingerPrinterView.getState() == FingerPrinterView.STATE_WRONG_PWD) { fingerPrinterView.setState(FingerPrinterView.STATE_NO_SCANING); } else { fingerPrinterView.setState(FingerPrinterView.STATE_SCANING); } } @Override public void onCompleted() { } @Override public void onError(Throwable e) { if(e instanceof FPerException){ Toast.makeText(MainActivity.this,((FPerException) e).getDisplayMessage(),Toast.LENGTH_SHORT).show(); } } @Override public void onNext(Boolean aBoolean) { if(aBoolean){ fingerPrinterView.setState(FingerPrinterView.STATE_CORRECT_PWD); }else{ fingerErrorNum ; fingerPrinterView.setState(FingerPrinterView.STATE_WRONG_PWD); } } }); rxfingerPrinter.addSubscription(this,subscription); } }); } @Override protected void onDestroy() { super.onDestroy(); rxfingerPrinter.unSubscribe(this); }}