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StandardSignInActivity.java
/* * Copyright (C) 2017 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.example.android.autofill.app.commoncases; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.support.v7.app.AppCompatActivity; import android.view.View; import android.widget.EditText; import android.widget.Toast; import com.example.android.autofill.app.R; import com.example.android.autofill.app.WelcomeActivity; public class StandardSignInActivity extends AppCompatActivity { private EditText mUsernameEditText; private EditText mPasswordEditText; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.login_activity); mUsernameEditText = findViewById(R.id.usernameField); mPasswordEditText = findViewById(R.id.passwordField); findViewById(R.id.login).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { login(); } }); findViewById(R.id.clear).setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { resetFields(); } }); } private void resetFields() { mUsernameEditText.setText(""); mPasswordEditText.setText(""); } /** * Emulates a login action. */ private void login() { String username = mUsernameEditText.getText().toString(); String password = mPasswordEditText.getText().toString(); boolean valid = isValidCredentials(username, password); if (valid) { Intent intent = WelcomeActivity.getStartActivityIntent(StandardSignInActivity.this); startActivity(intent); finish(); } else { Toast.makeText(this, "Authentication failed.", Toast.LENGTH_SHORT).show(); } } /** * Dummy implementation for demo purposes. A real service should use secure mechanisms to * authenticate users. */ public boolean isValidCredentials(String username, String password) { return username != null && password != null && username.equalsIgnoreCase(password); } }