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개발/모바일

안드로이드 스튜디오 회원가입&로그인프로젝트 Lec1, 2

happilee12 2018. 1. 9. 01:47
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강의 링크 : https://youtu.be/f7_ORwhSx2E


1.

처음 생성하는 액티비티 이름을 LoginActivity 로 하여 프로젝트를 생성


2. 

라이브러리 추가

GradleScripts/ build.gradle(Module:app)

 apply plugin: 'com.android.application'


android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.example.han.management"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    testImplementation 'junit:junit:4.12'
    compile 'com.android.volley:volley:1.0.0'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}


volley는 http(네트워크 통신)과 관련된 라이브러리. 



3. 

액티비티 추가.

기존에 LoginActivity 에 더하여 MainActivity, RegisterActivity 두개를 추가 & 화면구성(강의에서는 relative layout으로 만들지만, 안드로이드 스튜디오가 constraintlayout으로 자동 생성하길래 그냥 그대로 만듬)

activity_login.xml 

 <?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout 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"
    tools:context="com.example.han.member.LoginActivity">

    <EditText
        android:id="@+id/textView"
        android:layout_width="353dp"
        android:layout_height="46dp"
        android:ems="10"
        android:hint="ID"
        android:inputType="textPersonName"
        tools:layout_editor_absoluteX="16dp"
        tools:layout_editor_absoluteY="16dp" />

    <Button
        android:id="@+id/loginButton"
        android:layout_width="354dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="72dp"
        android:text="로그인"
        app:layout_constraintTop_toBottomOf="@+id/textView"
        tools:layout_editor_absoluteX="15dp" />

    <EditText
        android:id="@+id/passwordText"
        android:layout_width="349dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:ems="10"
        android:hint="password"
        android:inputType="textPassword"
        app:layout_constraintTop_toBottomOf="@+id/textView"
        tools:layout_editor_absoluteX="16dp" />

    <TextView
        android:id="@+id/registerButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:text="회원가입"
        android:textAppearance="@style/TextAppearance.AppCompat.Button"
        app:layout_constraintTop_toBottomOf="@+id/loginButton"
        tools:layout_editor_absoluteX="163dp" />
</android.support.constraint.ConstraintLayout>


 activity_main.xml

 <?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout 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"
    tools:context="com.example.han.member.MainActivity">

    <TextView
        android:id="@+id/welcomeMessage"
        android:layout_width="353dp"
        android:layout_height="51dp"
        android:text="TextView"
        android:textAppearance="@style/TextAppearance.AppCompat.Display1"
        tools:layout_editor_absoluteX="16dp"
        tools:layout_editor_absoluteY="16dp" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="354dp"
        android:layout_height="35dp"
        android:layout_marginTop="8dp"
        android:text="아이디"
        android:textAppearance="@style/TextAppearance.AppCompat.Headline"
        app:layout_constraintTop_toBottomOf="@+id/welcomeMessage"
        tools:layout_editor_absoluteX="16dp" />

    <TextView
        android:id="@+id/passwordText"
        android:layout_width="353dp"
        android:layout_height="51dp"
        android:layout_marginTop="8dp"
        android:text="TextView"
        android:textAppearance="@style/TextAppearance.AppCompat.Display1"
        app:layout_constraintTop_toBottomOf="@+id/textView2"
        tools:layout_editor_absoluteX="16dp" />

    <TextView
        android:id="@+id/idText2"
        android:layout_width="353dp"
        android:layout_height="51dp"
        android:layout_marginTop="8dp"
        android:text="TextView"
        android:textAppearance="@style/TextAppearance.AppCompat.Display1"
        app:layout_constraintTop_toBottomOf="@+id/textView"
        tools:layout_editor_absoluteX="16dp" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="346dp"
        android:layout_height="35dp"
        android:layout_marginTop="8dp"
        android:text="비밀번호"
        android:textAppearance="@style/TextAppearance.AppCompat.Headline"
        app:layout_constraintTop_toBottomOf="@+id/idText2"
        tools:layout_editor_absoluteX="16dp" />
</android.support.constraint.ConstraintLayout>


activity_register.xml 

 <?xml version="1.0" encoding="utf-8"?>

<android.support.constraint.ConstraintLayout 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"
    tools:context="com.example.han.member.RegisterActivity">

    <EditText
        android:id="@+id/textView"
        android:layout_width="358dp"
        android:layout_height="44dp"
        android:ems="10"
        android:hint="id"
        android:inputType="textPersonName"
        tools:layout_editor_absoluteX="16dp"
        tools:layout_editor_absoluteY="18dp" />

    <EditText
        android:id="@+id/passwordText"
        android:layout_width="354dp"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:ems="10"
        android:hint="pw"
        android:inputType="textPersonName"
        app:layout_constraintTop_toBottomOf="@+id/textView"
        tools:layout_editor_absoluteX="16dp" />

    <EditText
        android:id="@+id/nameText"
        android:layout_width="353dp"
        android:layout_height="48dp"
        android:layout_marginTop="8dp"
        android:ems="10"
        android:hint="name"
        android:inputType="textPersonName"
        app:layout_constraintTop_toBottomOf="@+id/passwordText"
        tools:layout_editor_absoluteX="16dp" />

    <EditText
        android:id="@+id/ageText"
        android:layout_width="351dp"
        android:layout_height="45dp"
        android:layout_marginTop="8dp"
        android:ems="10"
        android:hint="10"
        android:inputType="textPersonName"
        android:text=" "
        app:layout_constraintTop_toBottomOf="@+id/nameText"
        tools:layout_editor_absoluteX="16dp" />

    <Button
        android:id="@+id/registerButton"
        android:layout_width="355dp"
        android:layout_height="41dp"
        android:layout_marginTop="20dp"
        android:text="회원가입"
        app:layout_constraintTop_toBottomOf="@+id/ageText"
        tools:layout_editor_absoluteX="15dp" />
</android.support.constraint.ConstraintLayout>







강의 링크 : https://youtu.be/5ZMVRKis1eI


- 각 액티비티 사이의 연결을 다룸



LoginActivity 

 package com.example.han.member;


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.TextView;

public class LoginActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);

        EditText idText = (EditText)findViewById(R.id.idText);
        EditText passwordText = (EditText)findViewById(R.id.passwordText);

        Button loginButton = (Button)findViewById(R.id.loginButton);
        TextView registerButton = (TextView)findViewById(R.id.registerButton);

        registerButton.setOnClickListener(new View.OnClickListener() {

            @Override
            // 클릭 시 registerIntent 를 통해서 registerActivity를 실행
            public void onClick(View view) {
                Intent registerIntent = new Intent(LoginActivity.this, RegisterActivity.class);
                LoginActivity.this.startActivity(registerIntent );

            }
        });
    }
}


RegisterActivity 

 package com.example.han.member;


import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.Button;
import android.widget.EditText;

public class RegisterActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_register);

        EditText idText = (EditText)findViewById(R.id.idText);
        EditText passwordText = (EditText)findViewById(R.id.passwordText);
        EditText nameText = (EditText)findViewById(R.id.nameText);
        EditText ageText = (EditText)findViewById(R.id.ageText);

        Button registerButton = (Button)findViewById(R.id.registerButton);

    }
}


MainActivity 

 package com.example.han.member;


import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.EditText;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);


        EditText idText = (EditText)findViewById(R.id.idText);
        EditText passwordText = (EditText)findViewById(R.id.passwordText);
        TextView welcomeMessage = (TextView)findViewById(R.id.welcomeMessage);
    }
}


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