[android] android 번외 로그인 페이지 만들기

 

 

 

 

 

 

 

 

 

아직 DB 연결을 못해서

간단하게 만들었슴당 ~ㅎㅎㅎㅎㅎ

 

 

 

activity_main.xml

 

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    tools:context=".MainActivity">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="id pw"
        android:textColor="#00C4FF"
        android:textSize="30dp" />

    <TextView
        android:id="@+id/Text1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="id" />

    <EditText
        android:layout_width="300dp"
        android:layout_height="50dp"
        android:id="@+id/IDInput"
        android:layout_gravity="center_horizontal"
        android:layout_margin="10dp"
        android:hint="id를 입력하시오" />

    <TextView
        android:id="@+id/Text2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center_horizontal"
        android:text="password"
        />

    <EditText
        android:layout_width="300dp"
        android:layout_height="50dp"
        android:id="@+id/PWInput"
        android:layout_gravity="center_horizontal"
        android:layout_margin="10dp"
        android:hint="비밀번호를 입력하시오" />

    <Button
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:id="@+id/BtnLogin"
        android:layout_gravity="center_horizontal"
        android:background="#FF8400"
        android:text="login"/>




</LinearLayout>

 

 

 

 

 

 

MainActivity.kt

 

 

package kr.ac.dongyang.a4_5

import android.app.Activity
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.EditText
import android.widget.Toast
import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        BtnLogin.setOnClickListener{
            var id = IDInput.text.toString()
            var pw = PWInput.text.toString()

            val sharedPreference = getSharedPreferences("file name" , Activity.MODE_PRIVATE)
            val savedId = sharedPreference.getString("id", "kang")
            val savedPw = sharedPreference.getString("pw", "1234")

            if(id == savedId && pw == savedPw) {
                Toast.makeText(applicationContext,"로그인의 성공하였습니다!",
                    Toast.LENGTH_SHORT).show()
            }
            else{
                Toast.makeText(applicationContext,"로그인의 실패하였습니다!",
                    Toast.LENGTH_SHORT).show()
            }
        }
    }
}

 

 

 

 

 

 

실행결과