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/*
* 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.autofillframework.app
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.Button
import android.widget.EditText
import android.widget.Toast
import com.example.android.autofillframework.R
class LoginActivity : AppCompatActivity() {
private var mUsernameEditText: EditText? = null
private var mPasswordEditText: EditText? = null
private var mLoginButton: Button? = null
private var mClearButton: Button? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.login_activity)
mLoginButton = findViewById(R.id.login) as Button
mClearButton = findViewById(R.id.clear) as Button
mUsernameEditText = findViewById(R.id.usernameField) as EditText
mPasswordEditText = findViewById(R.id.passwordField) as EditText
mLoginButton!!.setOnClickListener { login() }
mClearButton!!.setOnClickListener { resetFields() }
}
private fun resetFields() {
mUsernameEditText!!.setText("")
mPasswordEditText!!.setText("")
}
/**
* Emulates a login action.
*/
private fun login() {
val username = mUsernameEditText!!.text.toString()
val password = mPasswordEditText!!.text.toString()
val valid = isValidCredentials(username, password)
if (valid) {
val intent = WelcomeActivity.getStartActivityIntent(this@LoginActivity)
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.
*/
fun isValidCredentials(username: String?, password: String?): Boolean {
return username != null && password != null && username == password
}
companion object {
fun getStartActivityIntent(context: Context): Intent {
val intent = Intent(context, LoginActivity::class.java)
return intent
}
}
}
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