Week1 필수과제

app/build.gradle

@@ -7,9 +7,13 @@ android {
     namespace 'org.android.go.sopt'
     compileSdk 33
 
+    buildFeatures {
+        viewBinding = true
+    }
+
     defaultConfig {
         applicationId "org.android.go.sopt"
-        minSdk 28
+        minSdk 24
         targetSdk 32
         versionCode 1
         versionName "1.0"

app/src/main/AndroidManifest.xml

@@ -12,14 +12,24 @@
         android:theme="@style/Theme.GOSOPTAndroid"
         tools:targetApi="31">
         <activity
-            android:name=".MainActivity"
-            android:exported="true">
+            android:name=".signup.SignUpActivity"
+            android:exported="false"
+            android:screenOrientation="portrait"/>
+        <activity
+            android:name=".login.LoginActivity"
+            android:exported="true"
+            android:screenOrientation="portrait"
+            >
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
 
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity
+            android:name=".main.MainActivity"
+            android:exported="false"
+            android:screenOrientation="portrait"/>
     </application>
 
 </manifest>

app/src/main/java/org/android/go/sopt/login/LoginActivity.kt

@@ -0,0 +1,72 @@
+package org.android.go.sopt.login
+
+import android.content.Intent
+import android.os.Bundle
+import androidx.activity.result.ActivityResult
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.appcompat.app.AppCompatActivity
+import org.android.go.sopt.R
+import org.android.go.sopt.main.MainActivity
+import org.android.go.sopt.signup.SignUpActivity
+import org.android.go.sopt.databinding.ActivityLoginBinding
+import org.android.go.sopt.util.hideKeyboard
+import org.android.go.sopt.util.showShortSnackbar
+import org.android.go.sopt.util.showShortToast
+
+
+class LoginActivity : AppCompatActivity() {
+
+    private lateinit var binding: ActivityLoginBinding
+    private lateinit var id: String
+    private lateinit var password: String
+    private lateinit var name: String
+    private lateinit var specialty: String
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding = ActivityLoginBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        binding.root.setOnClickListener {
+            hideKeyboard(binding.root)
+        }
+
+        this.onClickLogin()
+        this.onCLickSignUp()
+    }
+
+    private fun onClickLogin() {
+        binding.btMainLogin.setOnClickListener {
+            if (id == binding.etMainId.text.toString() && password == binding.etMainPassword.text.toString()) {
+                val intent = Intent(this, MainActivity::class.java)
+                intent.putExtra("name", name)
+                intent.putExtra("specialty", specialty)
+                intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK);
+                intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+                startActivity(intent)
+                showShortToast(getString(R.string.login_success_login_msg))
+            } else {
+                showShortToast(getString(R.string.login_fail_login_msg))
+            }
+        }
+    }
+
+    private fun onCLickSignUp() {
+        binding.btMainSignUp.setOnClickListener {
+            val intent = Intent(this, SignUpActivity::class.java)
+            getResultSignUp.launch(intent)
+        }
+    }
+
+    private val getResultSignUp = registerForActivityResult(
+        ActivityResultContracts.StartActivityForResult()
+    ) { result: ActivityResult ->
+        if (result.resultCode == RESULT_OK) {
+            id = result.data?.getStringExtra("id") ?: ""
+            password = result.data?.getStringExtra("password") ?: ""
+            name = result.data?.getStringExtra("name") ?: ""
+            specialty = result.data?.getStringExtra("specialty") ?: ""
+            showShortSnackbar(binding.root, getString(R.string.login_success_sign_up_msg))
+        }
+    }
+}

app/src/main/java/org/android/go/sopt/main/MainActivity.kt

@@ -0,0 +1,27 @@
+package org.android.go.sopt.main
+
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import org.android.go.sopt.databinding.ActivityMainBinding
+
+
+class MainActivity : AppCompatActivity() {
+    private lateinit var binding: ActivityMainBinding
+    private lateinit var name: String
+    private lateinit var specialty: String
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding = ActivityMainBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        this.getMyData()
+    }
+
+    private fun getMyData() {
+        name = intent.getStringExtra("name").toString()
+        specialty = intent.getStringExtra("specialty").toString()
+        binding.tvMainName.text = "이름 : $name"
+        binding.tvMainSpecialty.text = "특기 : $specialty"
+    }
+}

app/src/main/java/org/android/go/sopt/signup/SignUpActivity.kt

@@ -0,0 +1,55 @@
+package org.android.go.sopt.signup
+
+import android.content.Intent
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import android.widget.Toast
+import org.android.go.sopt.R
+import org.android.go.sopt.databinding.ActivitySignUpBinding
+import org.android.go.sopt.login.LoginActivity
+import org.android.go.sopt.util.hideKeyboard
+import org.android.go.sopt.util.showShortToast
+
+class SignUpActivity : AppCompatActivity() {
+
+    private lateinit var binding: ActivitySignUpBinding
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding = ActivitySignUpBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        binding.root.setOnClickListener {
+            hideKeyboard(binding.root)
+        }
+
+        this.onClickComplete()
+    }
+
+    private fun onClickComplete(){
+        binding.btSignupComplete.setOnClickListener{
+            val id = binding.etSignupId.text
+            val password = binding.etSignupPassword.text
+            val name = binding.etSignupName.text
+            val specialty = binding.etSignupSpecialty.text
+
+            if(id.length !in 6..10){
+                showShortToast(getString(R.string.sign_up_id_err_msg))
+            } else if(password.length !in 8..12){
+                showShortToast(getString(R.string.sign_up_password_err_msg))
+            } else if(name.isEmpty()){
+                showShortToast(getString(R.string.sign_up_name_err_msg))
+            } else if(specialty.isEmpty()){
+                showShortToast(getString(R.string.sign_up_specialty_err_msg))
+            } else{
+                val intent = Intent(this, LoginActivity::class.java)
+                intent.putExtra("id", id.toString())
+                intent.putExtra("password", password.toString())
+                intent.putExtra("name", name.toString())
+                intent.putExtra("specialty", specialty.toString())
+                setResult(RESULT_OK, intent)
+                finish()
+            }
+        }
+    }
+}

app/src/main/java/org/android/go/sopt/util/ContextExtension.kt

@@ -0,0 +1,22 @@
+package org.android.go.sopt.util
+
+import android.content.Context
+import android.view.View
+import android.view.inputmethod.InputMethodManager
+import android.widget.Toast
+import com.google.android.material.snackbar.Snackbar
+
+fun Context.showShortToast(message: String){
+    Toast.makeText(this, message, Toast.LENGTH_SHORT).show()
+}
+
+fun Context.hideKeyboard(view: View){
+    val inputManager = getSystemService(Context.INPUT_METHOD_SERVICE) as InputMethodManager
+    // hideSoftInputFromWindow는 첫번째 인자로 windowToken을 받아야함. windowToken은 View에서 사용?
+    inputManager.hideSoftInputFromWindow(view.windowToken, 0)
+}
+
+fun Context.showShortSnackbar(view: View, message: String){
+    // Snackbar.make는 첫번째 인자로 View를 받아야한다. 그래서 this(context)를 쓰면 에러남
+    Snackbar.make(view, message, Snackbar.LENGTH_SHORT).show()
+}

app/src/main/java/org/android/go/sopt/util/ViewExtension.kt

@@ -0,0 +1,9 @@
+package org.android.go.sopt.util
+
+import android.view.View
+import com.google.android.material.snackbar.Snackbar
+
+// View 객체를 상속받는 곳에서만 사용 가능~
+//fun View.showShortSnackBar(message: String){
+//    Snackbar.make(this, message, Snackbar.LENGTH_SHORT).show()
+//}

app/src/main/res/layout/activity_login.xml

@@ -0,0 +1,96 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.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"
+    android:paddingHorizontal="30dp"
+    tools:context=".login.LoginActivity">
+
+    <TextView
+        android:id="@+id/tv_main_welcome"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="50dp"
+        android:text="@string/login_welcome"
+        android:textColor="@color/black"
+        android:textSize="25sp"
+        android:textStyle="bold"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+    <TextView
+        android:id="@+id/tv_main_id"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="50dp"
+        android:text="@string/id_title"
+        android:textSize="30sp"
+        android:textStyle="bold"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/tv_main_welcome" />
+
+    <EditText
+        android:id="@+id/et_main_id"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="10dp"
+        android:hint="@string/id_hint"
+        android:imeOptions="actionNext"
+        android:inputType="text"
+        android:padding="10dp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/tv_main_id" />
+
+    <TextView
+        android:id="@+id/tv_main_password"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="50dp"
+        android:text="@string/password_title"
+        android:textSize="30sp"
+        android:textStyle="bold"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/et_main_id" />
+
+    <EditText
+        android:id="@+id/et_main_password"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="10dp"
+        android:hint="@string/password_hint"
+        android:imeOptions="actionDone"
+        android:inputType="textPassword"
+        android:padding="10dp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/tv_main_password" />
+
+    <Button
+        android:id="@+id/bt_main_login"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="30dp"
+        android:padding="10dp"
+        android:text="@string/login_btn"
+        android:textSize="20sp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/et_main_password" />
+
+    <Button
+        android:id="@+id/bt_main_sign_up"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="10dp"
+        android:padding="10dp"
+        android:text="@string/sign_up_btn"
+        android:textSize="20sp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@+id/bt_main_login" />
+
+
+</androidx.constraintlayout.widget.ConstraintLayout>

app/src/main/res/layout/activity_main.xml

@@ -4,15 +4,37 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity">
+    android:paddingTop="30dp"
+    tools:context=".main.MainActivity">
+
+    <ImageView
+        android:id="@+id/iv_main_image"
+        android:layout_width="100dp"
+        android:layout_height="0dp"
+        android:src="@drawable/img_introduce"
+        app:layout_constraintDimensionRatio="1"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
 
     <TextView
+        android:id="@+id/tv_main_name"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
+        android:textColor="@color/black"
+        android:textSize="20sp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        app:layout_constraintTop_toBottomOf="@id/iv_main_image" />
+
+    <TextView
+        android:id="@+id/tv_main_specialty"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textColor="@color/black"
+        android:textSize="20sp"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/tv_main_name" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>