Android开发之应用锁解锁方式：指纹和密码
先上效果图：
主要实现的是通过自定义密码或者指纹，给应用锁进行解锁，然后进入APP。
主要代码：LoginActivity.java
package com.fyang21117.rdiot1.second;
import android.content.Intent;
import android.os.Handler;
import android.os.Looper;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.fyang21117.rdiot1.FingerprintUtil;
import com.fyang21117.rdiot1.KeyguardLockScreenManager;
import com.fyang21117.rdiot1.MainActivity;
import com.fyang21117.rdiot1.R;
import com.fyang21117.rdiot1.core.FingerprintCore;
public class LoginActivity extends AppCompatActivity implements View.OnClickListener {
private FingerprintCore mFingerprintCore;
private KeyguardLockScreenManager mKeyguardLockScreenManager;//指纹管理
private Toast mToast;
private Handler mHandler = new Handler(Looper.getMainLooper());//主线程
private EditText editText;
private String string;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
setTitle(“应用锁”);
initFingerprintCore();
Button psw_login = findViewById(R.id.psw_login);
Button use_fingerprint = findViewById(R.id.use_fingerprint);
editText = findViewById(R.id.unlock_num);
psw_login.setOnClickListener(this);
use_fingerprint.setOnClickListener(this);
}
@Override
public void onClick(View v) {
final int viewId = v.getId();
switch (viewId) {
case R.id.use_fingerprint:
//调用非活动布局的控件
View view= getLayoutInflater().inflate(R.layout.fingerprint_dialog, null);
final MyDialog mMyDialog= new MyDialog(this, 0, 0, view, R.style.DialogTheme);
Button cancel_fingerprint = view.findViewById(R.id.cancel_unlock);
mMyDialog.setCancelable(true);
mMyDialog.show();
startFingerprintRecognition();
cancel_fingerprint.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
mMyDialog.dismiss();
}
});
break;
case R.id.psw_login:
string =editText.getText().toString();
if(string.equals(“1028″))
MainActivity.actionStart(this);
else
Toast.makeText(this,”Unlocking failed!Please input again!”,Toast.LENGTH_SHORT).show();
break;
}
}
/*** 指纹识别初始化*/
private void initFingerprintCore() {
mFingerprintCore = new FingerprintCore(this);
mFingerprintCore.setFingerprintManager(mResultListener);
mKeyguardLockScreenManager = new KeyguardLockScreenManager(this);
}
/*** 进入系统设置指纹界面*/
private void enterSysFingerprintSettingPage() {
FingerprintUtil.openFingerPrintSettingPage(this);
}
private void startFingerprintRecognitionUnlockScreen() {
if (mKeyguardLockScreenManager == null) {
return;
}
if (!mKeyguardLockScreenManager.isOpenLockScreenPwd()) {
FingerprintUtil.openFingerPrintSettingPage(this);
return;
}
mKeyguardLockScreenManager.showAuthenticationScreen(this);
}
/*** 开始指纹识别*/
private void startFingerprintRecognition() {
if (mFingerprintCore.isSupport()) {
if (!mFingerprintCore.isHasEnrolledFingerprints()) {
toastTipMsg(R.string.fingerprint_recognition_not_enrolled);
FingerprintUtil.openFingerPrintSettingPage(this);
return;
}
toastTipMsg(R.string.fingerprint_recognition_tip);
if (mFingerprintCore.isAuthenticating()) {
toastTipMsg(R.string.fingerprint_recognition_authenticating);
} else {
mFingerprintCore.startAuthenticate();
}
} else {
toastTipMsg(R.string.fingerprint_recognition_not_support);
}
}
private void IntoActivity() {
MainActivity.actionStart(this);//识别成功
}
private FingerprintCore.IFingerprintResultListener mResultListener
= new FingerprintCore.IFingerprintResultListener() {
@Override
public void onAuthenticateSuccess() {
toastTipMsg(R.string.fingerprint_recognition_success);
IntoActivity();
}
@Override
public void onAuthenticateFailed(int helpId) {
toastTipMsg(R.string.fingerprint_recognition_failed);
}
@Override
public void onAuthenticateError(int errMsgId) {
toastTipMsg(R.string.fingerprint_recognition_error);
}
@Override
public void onStartAuthenticateResult(boolean isSuccess) {
}
};
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (requestCode == KeyguardLockScreenManager.REQUEST_CODE_CONFIRM_DEVICE_CREDENTIALS) {
// Challenge completed, proceed with using cipher
if (resultCode == RESULT_OK) {
toastTipMsg(R.string.sys_pwd_recognition_success);
} else {
toastTipMsg(R.string.sys_pwd_recognition_failed);
}
}
}
private void toastTipMsg(int messageId) {
if (mToast == null) {
mToast = Toast.makeText(this, messageId, Toast.LENGTH_SHORT);
}
mToast.setText(messageId);
mToast.cancel();
mHandler.removeCallbacks(mShowToastRunnable);
mHandler.postDelayed(mShowToastRunnable, 0);
}
private void toastTipMsg(String message) {
if (mToast == null) {
mToast = Toast.makeText(this, message, Toast.LENGTH_LONG);
}
mToast.setText(message);
mToast.cancel();
mHandler.removeCallbacks(mShowToastRunnable);
mHandler.postDelayed(mShowToastRunnable, 200);
}
private Runnable mShowToastRunnable = new Runnable() {
@Override
public void run() {
mToast.show();
}
};
@Override
protected void onDestroy() {
if (mFingerprintCore != null) {
mFingerprintCore.onDestroy();
mFingerprintCore = null;
}
if (mKeyguardLockScreenManager != null) {
mKeyguardLockScreenManager.onDestroy();
mKeyguardLockScreenManager = null;
}
mResultListener = null;
mShowToastRunnable = null;
mToast = null;
super.onDestroy();
}
}
activity_login.xml
<?xml version=”1.0″ encoding=”utf-8″?>
<LinearLayout
xmlns:android=”http://schemas.android.com/apk/res/android”
android:layout_width=”match_parent”
android:layout_height=”match_parent”
android:orientation=”vertical”>
<LinearLayout
android:id=”@+id/digital_layout”
android:layout_width=”match_parent”
android:layout_height=”match_parent”
android:orientation=”vertical”
android:layout_gravity=”center_vertical”
android:gravity=”center_vertical”>
<EditText
android:id=”@+id/unlock_num”
android:layout_width=”270dp”
android:layout_height=”wrap_content”
android:layout_gravity=”center_horizontal”
android:gravity=”center_horizontal”
android:inputType=”number”
android:hint=”input your unlocking nums:”
android:textAllCaps=”false”/>
<Button
android:id=”@+id/psw_login”
android:layout_width=”270dp”
android:layout_height=”wrap_content”
android:layout_gravity=”center_horizontal”
android:gravity=”center_horizontal”
android:text=”@string/login2″
android:textAllCaps=”false”
android:textSize=”20sp”/>
<Button
android:id=”@+id/use_fingerprint”
android:layout_width=”270dp”
android:layout_height=”wrap_content”
android:layout_gravity=”center_horizontal”
android:gravity=”center_horizontal”
android:text=”@string/use_fingerprint”
android:textAllCaps=”false”
android:textSize=”20sp”/>
</LinearLayout>
</LinearLayout>
解锁只是 个人工程的一部分，具体可参考下面链接：
完整代码见：https://github.com/fyang21117/RDIOT1