Week1 필수과제

app/build.gradle

@@ -1,15 +1,20 @@
 plugins {
     id 'com.android.application'
     id 'org.jetbrains.kotlin.android'
+    id 'kotlin-parcelize'
 }
 
 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=".presentation.signup.SignUpActivity"
+            android:exported="false"
+            android:screenOrientation="portrait"/>
+        <activity
+            android:name=".presentation.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=".presentation.main.MainActivity"
+            android:exported="false"
+            android:screenOrientation="portrait"/>
     </application>
 
 </manifest>

app/src/main/java/org/android/go/sopt/data/User.kt

@@ -0,0 +1,12 @@
+package org.android.go.sopt.data
+
+import android.os.Parcelable
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+data class User(
+    val id: String? = "",
+    val password: String? = "",
+    val name: String? = "",
+    val specialty: String? = "",
+) : Parcelable

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

@@ -0,0 +1,106 @@
+package org.android.go.sopt.presentation.login
+
+import android.content.Intent
+import android.os.Bundle
+import android.util.Log
+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.data.User
+import org.android.go.sopt.presentation.main.MainActivity
+import org.android.go.sopt.presentation.signup.SignUpActivity
+import org.android.go.sopt.databinding.ActivityLoginBinding
+import org.android.go.sopt.util.*
+
+
+class LoginActivity : AppCompatActivity() {
+
+    private lateinit var binding: ActivityLoginBinding
+    private var user: User? = null
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding = ActivityLoginBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        binding.root.setOnClickListener {
+            hideKeyboard(binding.root)
+        }
+
+        this.autoLogin()
+        this.onClickLogin()
+        this.onCLickSignUp()
+    }
+
+    private fun onClickLogin() {
+        with(binding) {
+            btMainLogin.setOnClickListener {
+                if (user !== null && user?.id == etMainId.text.toString() && user?.password == etMainPassword.text.toString()) {
+                    val intent = Intent(this@LoginActivity, MainActivity::class.java)
+                    intent.putExtra(IntentKey.USER_DATA, user)
+                    saveUserInformation()
+                    startActivity(intent)
+                    showShortToast(getString(R.string.login_success_login_msg))
+                    if (!isFinishing) finish()
+                } else {
+                    showShortToast(getString(R.string.login_fail_login_msg))
+                }
+            }
+        }
+    }
+
+
+    private val getResultSignUp = registerForActivityResult(
+        ActivityResultContracts.StartActivityForResult()
+    ) { result: ActivityResult ->
+        if (result.resultCode == RESULT_OK) {
+            user = result.data?.getParcelable(IntentKey.USER_DATA, User::class.java)
+            Log.d("user", "---------\n$user")
+            showShortSnackbar(binding.root, getString(R.string.login_success_sign_up_msg))
+        }
+    }
+
+    private fun onCLickSignUp() {
+        binding.btMainSignUp.setOnClickListener {
+            val intent = Intent(this, SignUpActivity::class.java)
+            getResultSignUp.launch(intent)
+        }
+    }
+
+    private fun saveUserInformation() {
+        val sharedPreference = getSharedPreferences(KEY_PREFS, 0)
+        val editor = sharedPreference.edit()
+        editor.putString(KEY_ID, user?.id)
+        editor.putString(KEY_PASSWORD, user?.password)
+        editor.putString(KEY_NAME, user?.name)
+        editor.putString(KEY_SPECIALTY, user?.specialty)
+        editor.apply()
+    }
+
+    private fun autoLogin() {
+        val sharedPreferences = getSharedPreferences(KEY_PREFS, 0)
+
+        if (sharedPreferences.contains(KEY_ID) || sharedPreferences.contains(KEY_PASSWORD)) {
+            user = User(
+                sharedPreferences.getString(KEY_ID, ""),
+                sharedPreferences.getString(KEY_PASSWORD, ""),
+                sharedPreferences.getString(KEY_NAME, ""),
+                sharedPreferences.getString(KEY_SPECIALTY, "")
+            )
+            val intent = Intent(this, MainActivity::class.java)
+            intent.putExtra(IntentKey.USER_DATA, user)
+            startActivity(intent)
+            showShortToast(getString(R.string.login_success_login_msg))
+            if (!isFinishing) finish()
+        }
+    }
+
+    companion object {
+        private const val KEY_PREFS = "autoLogin"
+        private const val KEY_ID = "id"
+        private const val KEY_PASSWORD = "password"
+        private const val KEY_NAME = "name"
+        private const val KEY_SPECIALTY = "specialty"
+    }
+}

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

@@ -0,0 +1,61 @@
+package org.android.go.sopt.presentation.main
+
+import android.os.Build
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import org.android.go.sopt.GalleryFragment
+import org.android.go.sopt.HomeFragment
+import org.android.go.sopt.R
+import org.android.go.sopt.SearchFragment
+import org.android.go.sopt.data.User
+import org.android.go.sopt.databinding.ActivityMainBinding
+import org.android.go.sopt.util.IntentKey
+import org.android.go.sopt.util.getParcelable
+
+
+class MainActivity : AppCompatActivity() {
+    private lateinit var binding: ActivityMainBinding
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        binding = ActivityMainBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+//        val currentFragment = supportFragmentManager.findFragmentById(R.id.fcv_main)
+//        if (currentFragment == null) {
+//            supportFragmentManager.beginTransaction().add(R.id.fcv_main, HomeFragment()).commit()
+//        }
+//        binding.bnvMain.setOnItemSelectedListener { item ->
+//            when (item.itemId) {
+//                R.id.menu_home -> {
+//                    HomeFragment()
+//                    return@setOnItemSelectedListener true
+//                }
+//                R.id.menu_search -> {
+//                    SearchFragment()
+//                    return@setOnItemSelectedListener true
+//                }
+//                else -> {
+//                    GalleryFragment()
+//                    return@setOnItemSelectedListener true
+//
+//                }
+//            }
+//        }
+
+        this.getUserData()
+    }
+
+    private fun getUserData() {
+        val user: User? = intent.getParcelable(IntentKey.USER_DATA, User::class.java)
+        binding.tvMainName.text = "이름 : ${user?.name}"
+        binding.tvMainSpecialty.text = "특기 : ${user?.specialty}"
+    }
+
+//    private fun changeFragment(fragment: Fragment) {
+//        supportFragmentManager
+//            .beginTransaction()
+//            .replace(R.id.fcv_main, fragment)
+//            .commit()
+//    }
+}

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

@@ -0,0 +1,63 @@
+package org.android.go.sopt.presentation.signup
+
+import android.content.Intent
+import androidx.appcompat.app.AppCompatActivity
+import android.os.Bundle
+import org.android.go.sopt.R
+import org.android.go.sopt.data.User
+import org.android.go.sopt.databinding.ActivitySignUpBinding
+import org.android.go.sopt.presentation.login.LoginActivity
+import org.android.go.sopt.util.IntentKey
+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() {
+        with(binding) {
+            btSignupComplete.setOnClickListener {
+                val id = etSignupId.text
+                val password = etSignupPassword.text
+                val name = etSignupName.text
+                val specialty = 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@SignUpActivity, LoginActivity::class.java)
+                    intent.putExtra(
+                        IntentKey.USER_DATA, User(
+                            id.toString(),
+                            password.toString(),
+                            name.toString(),
+                            specialty.toString()
+                        )
+                    )
+                    setResult(RESULT_OK, intent)
+                    // 만약 종료가 되지 않았다면 종료시키기
+                    if (!isFinishing) 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/IntentExtension.kt

@@ -0,0 +1,11 @@
+package org.android.go.sopt.util
+
+import android.content.Intent
+import android.os.Build.VERSION.SDK_INT
+import android.os.Build.VERSION_CODES.TIRAMISU
+import android.os.Parcelable
+
+fun <T : Parcelable?> Intent.getParcelable(key: String, clazz: Class<T>): T? = when {
+    SDK_INT >= TIRAMISU -> getParcelableExtra(key, clazz)
+    else -> getParcelableExtra(key) as? T
+}

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

@@ -0,0 +1,5 @@
+package org.android.go.sopt.util
+
+object IntentKey {
+    const val USER_DATA = "USER_DATA"
+}

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()
+//}