.idea/kotlinc.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="KotlinJpsPluginSettings">
-    <option name="version" value="1.8.20" />
+    <option name="version" value="1.8.10" />
   </component>
 </project>

app/build.gradle.kts

@@ -1,19 +1,16 @@
-import org.jetbrains.kotlin.kapt3.base.Kapt.kapt
-
 plugins {
     id("com.android.application")
     id("org.jetbrains.kotlin.android")
-    id("com.google.devtools.ksp")
 }
 
 android {
     namespace = "com.example.myapplication"
-    compileSdk = 34
+    compileSdk = 33
 
     defaultConfig {
         applicationId = "com.example.myapplication"
         minSdk = 24
-        targetSdk = 34
+        targetSdk = 33
         versionCode = 1
         versionName = "1.0"
 
@@ -33,17 +30,17 @@ android {
         }
     }
     compileOptions {
-        sourceCompatibility = JavaVersion.VERSION_17
-        targetCompatibility = JavaVersion.VERSION_17
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
     }
     kotlinOptions {
-        jvmTarget = "17"
+        jvmTarget = "1.8"
     }
     buildFeatures {
         compose = true
     }
     composeOptions {
-        kotlinCompilerExtensionVersion = "1.4.5"
+        kotlinCompilerExtensionVersion = "1.4.3"
     }
     packaging {
         resources {
@@ -52,12 +49,11 @@ android {
     }
 }
 
-
 dependencies {
 
     implementation("androidx.core:core-ktx:1.9.0")
     implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.6.2")
-    implementation("androidx.activity:activity-compose:1.8.1")
+    implementation("androidx.activity:activity-compose:1.7.2")
     implementation(platform("androidx.compose:compose-bom:2023.03.00"))
     implementation("androidx.compose.ui:ui")
     implementation("androidx.compose.ui:ui-graphics")
@@ -71,13 +67,4 @@ dependencies {
     androidTestImplementation("androidx.compose.ui:ui-test-junit4")
     debugImplementation("androidx.compose.ui:ui-tooling")
     debugImplementation("androidx.compose.ui:ui-test-manifest")
-
-
-    // Room
-    val room_version = "2.5.2"
-    implementation("androidx.room:room-runtime:$room_version")
-    annotationProcessor("androidx.room:room-compiler:$room_version")
-    ksp("androidx.room:room-compiler:$room_version")
-    implementation("androidx.room:room-ktx:$room_version")
-    implementation("androidx.room:room-paging:$room_version")
 }

app/src/main/java/com/example/myapplication/MainActivity.kt

@@ -19,14 +19,12 @@ import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.Card
 import androidx.compose.material3.CardDefaults
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
-import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
@@ -43,14 +41,11 @@ import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.navigation.compose.NavHost
 import androidx.navigation.NavHostController
-import androidx.navigation.NavType
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.rememberNavController
-import androidx.navigation.navArgument
-import com.example.myapplication.database.MobileAppDataBase
 import com.example.myapplication.screens.Authorization
-import com.example.myapplication.screens.EditCardScreen
-import com.example.myapplication.screens.EditUserScreen
+import com.example.myapplication.screens.CreateCard
+import com.example.myapplication.screens.EditCard
 import com.example.myapplication.ui.theme.MyApplicationTheme
 import com.example.myapplication.screens.MainScreen
 import com.example.myapplication.screens.Registration
@@ -74,13 +69,11 @@ class MainActivity : ComponentActivity() {
     }
 }
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun AppNavigation(navController: NavHostController){
     NavHost(
         navController = navController, startDestination = "authorization"
     ) {
-
         composable("authorization") {
             Authorization(navController = navController)
         }
@@ -90,22 +83,14 @@ fun AppNavigation(navController: NavHostController){
         composable("registration") {
             Registration(navController = navController)
         }
+        composable("createCard") {
+            CreateCard(navController = navController)
+        }
         composable("userSettings") {
             UserSettings(navController = navController)
         }
-        composable("editcard") {
-            EditCardScreen(navController = navController)
-        }
-        composable(
-            "editcard/{id}",
-            arguments = listOf(navArgument("id") { type = NavType.IntType }) //С аргументом
-        ) { backStackEntry ->
-            backStackEntry.arguments?.let {
-                EditCardScreen(navController = navController, cardId = it.getInt("id"))
-            }
-        }
-        composable("edituser"){
-            EditUserScreen(navController = navController)
+        composable("editCard") {
+            EditCard(navController = navController)
         }
     }
 }

app/src/main/java/com/example/myapplication/components/InputContent.kt

@@ -1,69 +0,0 @@
-package com.example.myapplication.components
-
-import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.requiredHeight
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.Button
-import androidx.compose.material3.ButtonDefaults
-import androidx.compose.material3.ExperimentalMaterial3Api
-import androidx.compose.material3.OutlinedTextField
-import androidx.compose.material3.Text
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.unit.dp
-import androidx.compose.ui.unit.sp
-
-val buttonHeightStandard = 72.dp
-
-@OptIn(ExperimentalMaterial3Api::class)
-@Composable
-fun PlaceholderInputField(label: String, startValue: String? = null, isSingleLine: Boolean, onTextChanged: (String) -> Unit){
-    var text = remember { mutableStateOf("") }
-    startValue?.let{
-        text.value = startValue
-    }
-    Text(
-        modifier = Modifier.padding(horizontal = 8.dp),
-        text = label,
-        fontSize = 20.sp
-    )
-    OutlinedTextField(
-        value = text.value,
-        onValueChange = {
-            text.value = it
-            onTextChanged(it)
-        },
-        modifier = Modifier
-            .fillMaxWidth()
-            .padding(top = 8.dp, start = 16.dp, bottom = 8.dp, end = 16.dp),
-        shape = RoundedCornerShape(10.dp),
-        singleLine = isSingleLine
-    )
-}
-
-@Composable
-fun ActiveButton(label: String, backgroundColor: Color, textColor: Color, onClickAction: () -> Unit){
-    Button(
-        onClick = onClickAction,
-        modifier = Modifier
-            .fillMaxWidth()
-            .requiredHeight(buttonHeightStandard)
-            .padding(top = 8.dp, start = 16.dp, bottom = 8.dp, end = 16.dp),
-        colors = ButtonDefaults.buttonColors(
-            containerColor = backgroundColor
-        ),
-        shape = RoundedCornerShape(10.dp)
-    ) {
-        Text(
-            text = label,
-            fontSize = 20.sp,
-            fontWeight = FontWeight.Bold,
-            color = textColor
-        )
-    }
-}

app/src/main/java/com/example/myapplication/components/navBar.kt

@@ -41,7 +41,7 @@ fun navBar(navController: NavHostController) {
         verticalAlignment = Alignment.CenterVertically
     ) {
         navItem(navController = navController, ImageId = R.drawable.home_image, "mainScreen")
-        navItem(navController = navController, ImageId = R.drawable.note_image, "editcard")
+        navItem(navController = navController, ImageId = R.drawable.note_image, "createCard")
         navItem(navController = navController, ImageId = R.drawable.profile_image, "userSettings")
     }
 }

app/src/main/java/com/example/myapplication/database/MobileDatabase.kt

@@ -1,89 +0,0 @@
-package com.example.myapplication.database
-
-import android.content.Context
-import android.graphics.BitmapFactory
-import android.util.Log
-import androidx.room.Database
-import androidx.room.Room
-import androidx.room.RoomDatabase
-import androidx.room.TypeConverters
-import androidx.sqlite.db.SupportSQLiteDatabase
-import com.example.myapplication.R
-import com.example.myapplication.database.entities.ImageConverter
-import com.example.myapplication.database.dao.CardDao
-import com.example.myapplication.database.dao.UserDao
-import com.example.myapplication.database.entities.Card
-import com.example.myapplication.database.entities.User
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
-
-@Database(entities = [User::class, Card::class], version = 1, exportSchema = false)
-@TypeConverters(ImageConverter::class)
-abstract class MobileAppDataBase : RoomDatabase() {
-    abstract fun userDao(): UserDao
-    abstract fun cardDao(): CardDao
-
-    companion object {
-        private const val DB_NAME: String = "my-db.db"
-
-        @Volatile
-        private var INSTANCE: MobileAppDataBase? = null
-
-        fun getInstance(appContext: Context): MobileAppDataBase {
-            return INSTANCE ?: synchronized(this) {
-                Room.databaseBuilder(
-                    appContext,
-                    MobileAppDataBase::class.java,
-                    DB_NAME
-                )
-                    .addCallback(object : Callback() {
-                        override fun onCreate(db: SupportSQLiteDatabase) {
-                            super.onCreate(db)
-                            CoroutineScope(Dispatchers.IO).launch {
-                                initialDataBase(appContext)
-                            }
-                        }
-                    })
-                    .build()
-                    .also { INSTANCE = it }
-            }
-        }
-
-        private suspend fun initialDataBase(appContext: Context) {
-            INSTANCE?.let { database ->
-                val userDao = database.userDao()
-                userDao.insert(User(id = 1, login = "Иван", password = "1234",))
-                userDao.insert(User(id = 2, login = "Леонель Месси", password = "4321",))
-
-                val cardDao = database.cardDao()
-                cardDao.insert(
-                    Card(
-                        name = "Феррари Имба",
-                        location = "г. Ульяновск",
-                        image = BitmapFactory.decodeResource(
-                            appContext.resources,
-                            R.drawable.ferrari_laferrari_car2
-                        ),
-                        mileage = 7322,
-                        price = 125000,
-                        userId = 1
-                    )
-                )
-                cardDao.insert(
-                    Card(
-                        name = "Феррари Два",
-                        location = "г. Ульяновск",
-                        image = BitmapFactory.decodeResource(
-                            appContext.resources,
-                            R.drawable.ferrari_laferrari_car2
-                        ),
-                        mileage = 1233,
-                        price = 15000,
-                        userId = 2
-                    )
-                )
-            }
-        }
-    }
-}

app/src/main/java/com/example/myapplication/database/dao/CardDao.kt

@@ -1,31 +0,0 @@
-package com.example.myapplication.database.dao
-
-import androidx.room.Dao
-import androidx.room.Delete
-import androidx.room.Insert
-import androidx.room.OnConflictStrategy
-import androidx.room.Query
-import androidx.room.Update
-import com.example.myapplication.database.entities.Card
-import kotlinx.coroutines.flow.Flow
-
-@Dao
-interface CardDao {
-    @Query("select * from cards")
-    fun getAll(): Flow<List<Card>>
-
-    @Query("select * from cards where cards.id = :id")
-    fun getById(id: Int): Card?
-
-    @Query("select * from cards where cards.user_id = :userId")
-    fun getByUserId(userId: Int): Flow<List<Card>>
-
-    @Insert(onConflict = OnConflictStrategy.IGNORE)
-    suspend fun insert(card: Card)
-
-    @Update
-    suspend fun update(card: Card)
-
-    @Delete
-    suspend fun delete(card: Card)
-}

app/src/main/java/com/example/myapplication/database/dao/UserDao.kt

@@ -1,32 +0,0 @@
-package com.example.myapplication.database.dao
-
-import androidx.room.Dao
-import androidx.room.Delete
-import androidx.room.Embedded
-import androidx.room.Insert
-import androidx.room.OnConflictStrategy
-import androidx.room.Query
-import androidx.room.Relation
-import androidx.room.Transaction
-import androidx.room.Update
-import com.example.myapplication.database.entities.Card
-import com.example.myapplication.database.entities.User
-import kotlinx.coroutines.flow.Flow
-
-@Dao
-interface UserDao {
-    @Query("select * from users")
-    fun getAll(): Flow<List<User>>
-
-    @Query("select * from users where users.id = :id")
-    fun getById(id: Int): User?
-
-    @Insert(onConflict = OnConflictStrategy.IGNORE)
-    suspend fun insert(user: User)
-
-    @Update
-    suspend fun update(user: User)
-
-    @Delete
-    suspend fun delete(user: User)
-}

app/src/main/java/com/example/myapplication/database/entities/Card.kt

@@ -1,40 +0,0 @@
-package com.example.myapplication.database.entities
-
-import android.graphics.Bitmap
-import androidx.room.ColumnInfo
-import androidx.room.Entity
-import androidx.room.ForeignKey
-import androidx.room.PrimaryKey
-
-@Entity(
-    tableName = "cards",
-    foreignKeys = [
-        ForeignKey(
-            entity = User::class,
-            parentColumns = ["id"],
-            childColumns = ["user_id"],
-            onDelete = ForeignKey.RESTRICT,
-            onUpdate = ForeignKey.RESTRICT
-        )
-    ]
-)
-data class Card(
-    @PrimaryKey(autoGenerate = true)
-    val id: Int? = null,
-    @ColumnInfo(name = "name")
-    val name: String,
-    @ColumnInfo(name = "location")
-    val location: String,
-    @ColumnInfo(name = "mileage")
-    val mileage: Int,
-    @ColumnInfo(name = "price")
-    val price: Int,
-    @ColumnInfo(name = "image")
-    val image: Bitmap,
-    @ColumnInfo(name="user_id")
-    val userId: Int
-){
-    override fun hashCode(): Int {
-        return id ?: -1
-    }
-}

app/src/main/java/com/example/myapplication/database/entities/ImageConverter.kt

@@ -1,20 +0,0 @@
-package com.example.myapplication.database.entities
-
-import android.graphics.Bitmap
-import android.graphics.BitmapFactory
-import androidx.room.TypeConverter
-import java.io.ByteArrayOutputStream
-
-class ImageConverter {
-    @TypeConverter
-    fun fromBitmap(bitmap: Bitmap) : ByteArray {
-        val outputStream = ByteArrayOutputStream();
-        bitmap.compress(Bitmap.CompressFormat.PNG, 100, outputStream)
-        return outputStream.toByteArray()
-    }
-
-    @TypeConverter
-    fun toBitmap(byteArray: ByteArray): Bitmap {
-        return BitmapFactory.decodeByteArray(byteArray, 0, byteArray.size)
-    }
-}

app/src/main/java/com/example/myapplication/database/entities/User.kt

@@ -1,19 +0,0 @@
-package com.example.myapplication.database.entities
-
-import androidx.room.ColumnInfo
-import androidx.room.Entity
-import androidx.room.PrimaryKey
-
-@Entity(tableName = "users")
-data class User(
-    @PrimaryKey(autoGenerate = true)
-    val id: Int? = null,
-    @ColumnInfo(name = "login")
-    val login: String,
-    @ColumnInfo(name = "password")
-    val password: String,
-){
-    override fun hashCode(): Int {
-        return id ?: -1
-    }
-}

app/src/main/java/com/example/myapplication/screens/authorization.kt

@@ -1,6 +1,5 @@
 package com.example.myapplication.screens
 
-import android.util.Log
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
@@ -13,14 +12,10 @@ import androidx.compose.foundation.layout.size
 import androidx.compose.material3.OutlinedTextField
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.mutableStateListOf
-import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.layout.ContentScale
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
@@ -31,27 +26,9 @@ import com.example.myapplication.R
 import com.example.myapplication.components.LoginField
 import com.example.myapplication.components.PasswordField
 import com.example.myapplication.components.navButton
-import com.example.myapplication.database.MobileAppDataBase
-import com.example.myapplication.database.entities.Card
-import com.example.myapplication.database.entities.User
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
 
 @Composable
 fun Authorization(navController: NavHostController){
-    val context = LocalContext.current
-    val users = remember { mutableStateListOf<User>() }
-
-    LaunchedEffect(Unit) {
-        withContext(Dispatchers.IO) {
-            val database = MobileAppDataBase.getInstance(context)
-            database.userDao().getAll().collect { data ->
-                users.clear()
-                data.forEach { users.add(it) }
-            }
-        }
-    }
-
     Column (
         modifier = Modifier
             .fillMaxSize()

app/src/main/java/com/example/myapplication/screens/createcard.kt

@@ -0,0 +1,50 @@
+package com.example.myapplication.screens
+
+import android.view.Display.Mode
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.fillMaxHeight
+import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.material3.Button
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.navigation.NavController
+import androidx.navigation.NavHostController
+import com.example.myapplication.components.LoginField
+import com.example.myapplication.components.navBar
+import com.example.myapplication.components.navButton
+import com.example.myapplication.ui.theme.SkyBlue
+
+@Composable
+fun CreateCard(navController: NavHostController) {
+    Column {
+        Box (modifier = Modifier.fillMaxHeight(0.9f)) {
+            Column(
+                modifier = Modifier.fillMaxWidth(),
+                horizontalAlignment = Alignment.CenterHorizontally
+            ) {
+                Button(onClick = { /*TODO*/ }) {
+                    Text("Добавить картинку")
+                }
+                LoginField(text = "Название/Марка")
+                LoginField(text = "Пробег")
+                LoginField(text = "Расположение")
+                LoginField(text = "Цена")
+                Button(onClick = { /*TODO*/ }) {
+                    Text("Создать объявление")
+                }
+            }
+        }
+        Column(modifier = Modifier
+            .fillMaxSize()
+            .background(SkyBlue),
+            verticalArrangement = Arrangement.Center) {
+            navBar(navController = navController)
+        }
+    }
+}

app/src/main/java/com/example/myapplication/screens/editcard.kt

@@ -1,223 +1,50 @@
 package com.example.myapplication.screens
 
-import android.graphics.Bitmap
-import android.graphics.BitmapFactory
-import android.graphics.ImageDecoder
-import android.net.Uri
-import android.os.Build
-import android.provider.MediaStore
 import android.view.Display.Mode
-import androidx.activity.compose.rememberLauncherForActivityResult
-import androidx.activity.result.contract.ActivityResultContracts
-import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
-import androidx.compose.foundation.gestures.scrollable
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.rememberScrollState
-import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.Button
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.graphics.asImageBitmap
-import androidx.compose.ui.layout.ContentScale
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.unit.dp
 import androidx.navigation.NavController
 import androidx.navigation.NavHostController
-import com.example.myapplication.R
-import com.example.myapplication.components.ActiveButton
 import com.example.myapplication.components.LoginField
-import com.example.myapplication.components.PlaceholderInputField
 import com.example.myapplication.components.navBar
 import com.example.myapplication.components.navButton
-import com.example.myapplication.database.MobileAppDataBase
-import com.example.myapplication.database.entities.Card
 import com.example.myapplication.ui.theme.SkyBlue
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
 
 @Composable
-fun EditCardScreen(navController: NavHostController, cardId: Int? = null) {
-    val context = LocalContext.current
-
-    val image = remember { mutableStateOf<Bitmap>(BitmapFactory.decodeResource(context.resources, R.drawable.ferrari_laferrari_car2)) }
-    val name = remember { mutableStateOf("") }
-    val location = remember { mutableStateOf("") }
-    val price = remember { mutableStateOf(0) }
-    val mileage = remember { mutableStateOf(0) }
-
-    val imageData = remember { mutableStateOf<Uri?>(null) }
-    val launcher =
-        rememberLauncherForActivityResult(ActivityResultContracts.GetContent()) { uri: Uri? ->
-            imageData.value = uri
-        }
-    imageData.value?.let {
-        if (Build.VERSION.SDK_INT < 28) {
-            image.value = MediaStore.Images
-                .Media.getBitmap(context.contentResolver, imageData.value)
-
-        } else {
-            val source = ImageDecoder
-                .createSource(context.contentResolver, imageData.value!!)
-            image.value = ImageDecoder.decodeBitmap(source)
-        }
-    }
-
-    cardId?.let{
-        LaunchedEffect(Unit) {
-            withContext(Dispatchers.IO) {
-                val card = MobileAppDataBase.getInstance(context).cardDao().getById(cardId!!)
-                image.value = card!!.image
-                name.value = card!!.name
-                location.value = card!!.location
-                price.value = card!!.price
-                mileage.value = card!!.mileage
-            }
-        }
-    }
-
-    val edit = remember { mutableStateOf(false) }
-    if (edit.value){
-        LaunchedEffect(Unit) {
-            withContext(Dispatchers.IO) {
-                cardId?.let {
-                    MobileAppDataBase.getInstance(context).cardDao()
-                        .update(
-                            Card(
-                                id = cardId,
-                                name = name.value,
-                                location = location.value,
-                                price = price.value,
-                                mileage = mileage.value,
-                                image = image.value,
-                                userId = 1)
-                        )
-
-                } ?: run {
-                    MobileAppDataBase.getInstance(context).cardDao()
-                        .insert(
-                            Card(
-                                name = name.value,
-                                location = location.value,
-                                price = price.value,
-                                mileage = mileage.value,
-                                image = image.value,
-                                userId = 1)
-                        )
+fun EditCard(navController: NavHostController) {
+    Column {
+        Box (modifier = Modifier.fillMaxHeight(0.9f)) {
+            Column(
+                modifier = Modifier.fillMaxWidth(),
+                horizontalAlignment = Alignment.CenterHorizontally
+            ) {
+                Button(onClick = { /*TODO*/ }) {
+                    Text("Добавить картинку")
+                }
+                LoginField(text = "Название/Марка")
+                LoginField(text = "Пробег")
+                LoginField(text = "Расположение")
+                LoginField(text = "Цена")
+                Button(onClick = { /*TODO*/ }) {
+                    Text("Изменить объявление")
                 }
             }
         }
-        edit.value = !edit.value
-        navController.navigate("mainScreen")
-    }
-
-    Column(
-        modifier = Modifier
+        Column(modifier = Modifier
             .fillMaxSize()
-            .padding(bottom = 8.dp)
-            .verticalScroll(rememberScrollState()),
-        verticalArrangement = Arrangement.Bottom,
-
-    ) {
-        Image(
-            bitmap = image.value.asImageBitmap(),
-            contentDescription = "editplaceholder",
-            contentScale = ContentScale.Crop,
-            modifier = Modifier
-                .size(384.dp)
-                .padding(8.dp)
-                .align(Alignment.CenterHorizontally))
-        ActiveButton(label = "Выбрать обложку", backgroundColor = SkyBlue, textColor = Color.Black, onClickAction = {
-            launcher.launch("image/*")
-        })
-        PlaceholderInputField(label = "Название", isSingleLine = true,
-            startValue = name.value, onTextChanged = { newName ->
-                name.value = newName
-            })
-        PlaceholderInputField(label = "Расположение", isSingleLine = true,
-            startValue = location.value, onTextChanged = { newLocation ->
-                location.value = newLocation
-            })
-        PlaceholderInputField(label = "Пробег", isSingleLine = true,
-            startValue = mileage.value.toString(), onTextChanged = { newMileage ->
-                mileage.value = newMileage.toIntOrNull() ?: 500
-            })
-        PlaceholderInputField(label = "Цена", isSingleLine = true,
-            startValue = price.value.toString(), onTextChanged = { newPrice ->
-                price.value = newPrice.toIntOrNull() ?: 10000
-            })
-        ActiveButton(label = "Сохранить", backgroundColor = SkyBlue, textColor = Color.Black, onClickAction = {
-            edit.value = !edit.value
-        })
-        navButton(navController = navController, destination = "mainScreen", label = "Назад", backgroundColor = SkyBlue, textColor = Color.Black)
-    }
-}
-
-@Composable
-fun EditUserScreen(navController: NavHostController){
-    val context = LocalContext.current
-
-    val photo = remember { mutableStateOf<Bitmap>(BitmapFactory.decodeResource(context.resources, R.drawable.login)) }
-    val name = remember { mutableStateOf("") }
-    val password = remember { mutableStateOf("") }
-
-    val imageData = remember { mutableStateOf<Uri?>(null) }
-    val launcher =
-        rememberLauncherForActivityResult(ActivityResultContracts.GetContent()) {uri: Uri? ->
-            imageData.value = uri
-        }
-    imageData.value?.let {
-        if (Build.VERSION.SDK_INT < 28) {
-            photo.value = MediaStore.Images
-                .Media.getBitmap(context.contentResolver, imageData.value)
-
-        } else {
-            val source = ImageDecoder
-                .createSource(context.contentResolver, imageData.value!!)
-            photo.value = ImageDecoder.decodeBitmap(source)
+            .background(SkyBlue),
+            verticalArrangement = Arrangement.Center) {
+            navBar(navController = navController)
         }
     }
-
-    Column(
-        modifier = Modifier
-            .fillMaxSize()
-            .padding(bottom = 8.dp),
-        verticalArrangement = Arrangement.Bottom
-    ) {
-        Image(
-            bitmap = photo.value.asImageBitmap(),
-            contentDescription = "editplaceholder",
-            contentScale = ContentScale.Crop,
-            modifier = Modifier
-                .size(384.dp)
-                .padding(8.dp)
-                .align(Alignment.CenterHorizontally))
-        ActiveButton(label = "Выбрать фото", backgroundColor = SkyBlue, textColor = Color.Black, onClickAction = {
-            launcher.launch("image/*")
-        })
-        PlaceholderInputField(label = "Никнейм", isSingleLine = true,
-            startValue = name.value, onTextChanged = { newName ->
-                name.value = newName
-            })
-        PlaceholderInputField(label = "Пароль", isSingleLine = true,
-            startValue = password.value, onTextChanged = { newPassword ->
-                password.value = newPassword
-            })
-        ActiveButton(label = "Сохранить", backgroundColor = SkyBlue, textColor = Color.Black, onClickAction = {
-            //edit.value = !edit.value
-        })
-    }
 }

app/src/main/java/com/example/myapplication/screens/mainScreen.kt

@@ -1,30 +1,9 @@
 package com.example.myapplication.screens
 
-import android.util.Log
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.background
 import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
-import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.items
-import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.ui.Alignment
-import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.graphics.asImageBitmap
-import androidx.compose.ui.layout.ContentScale
-import androidx.compose.ui.res.painterResource
-import androidx.compose.ui.text.font.FontWeight
-import androidx.compose.ui.unit.dp
-import androidx.navigation.NavHostController
-import com.example.myapplication.components.navBar
-import com.example.myapplication.database.entities.Card
-import com.example.myapplication.ui.theme.SkyBlue
-import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.Column
@@ -32,258 +11,132 @@ import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.layout.requiredHeight
 import androidx.compose.foundation.layout.size
-import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material3.AlertDialog
 import androidx.compose.material3.Button
-import androidx.compose.material3.ButtonDefaults
 import androidx.compose.material3.Card
 import androidx.compose.material3.CardDefaults
 import androidx.compose.material3.Text
-import androidx.compose.runtime.DisposableEffect
-import androidx.compose.runtime.mutableStateListOf
-import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.unit.sp
-import com.example.myapplication.R
-import com.example.myapplication.database.MobileAppDataBase
-import kotlinx.coroutines.CoroutineScope
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.clip
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.Shape
+import androidx.compose.ui.layout.ContentScale
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.text.font.FontFamily
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.unit.dp
+import androidx.navigation.NavHostController
+import com.example.myapplication.components.navBar
+import com.example.myapplication.ui.theme.SkyBlue
 
 @Composable
 fun MainScreen(navController: NavHostController) {
-    val context = LocalContext.current
-    val cards = remember { mutableStateListOf<Card>() }
-
-    LaunchedEffect(Unit) {
-        withContext(Dispatchers.IO) {
-            val database = MobileAppDataBase.getInstance(context)
-            database.cardDao().getAll().collect { data ->
-                cards.clear()
-                data.forEach { cards.add(it) }
-            }
-        }
-    }
-    
     Column {
         Box(modifier = Modifier
             .padding(horizontal = 10.dp)
             .fillMaxHeight(0.9f)) {
-            Column()
-            {
-                DataListScroll(navController, cards)
+            Column(
+                modifier = Modifier.verticalScroll(rememberScrollState())
+            ) {
+                ListItem(
+                    name = "Ламборджини Авентадор 2010",
+                    mileage = 4765,
+                    location = "Россия, г. Ульяновск",
+                    price = 5000000,
+                    imageResourceId = com.example.myapplication.R.drawable.lambo_car1,
+                    navController = navController
+                )
+                ListItem(
+                    name = "Оранжевый Москвич 1983",
+                    mileage = 522011,
+                    location = "Россия, г. Москва",
+                    price = 125000,
+                    imageResourceId = com.example.myapplication.R.drawable.moscowich_car3,
+                    navController = navController
+                )
+                ListItem(
+                    name = "Феррари Лаферрари 2013",
+                    mileage = 17698,
+                    location = "Италия, г. Неаполь",
+                    price = 1249990,
+                    imageResourceId = com.example.myapplication.R.drawable.ferrari_laferrari_car2,
+                    navController = navController
+                )
+                ListItem(
+                    name = "Оранжевый Москвич 1983",
+                    mileage = 522011,
+                    location = "Россия, г. Москва",
+                    price = 125000,
+                    imageResourceId = com.example.myapplication.R.drawable.moscowich_car3,
+                    navController = navController
+                )
+                ListItem(
+                    name = "Феррари Лаферрари 2013",
+                    mileage = 17698,
+                    location = "Италия, г. Неаполь",
+                    price = 1249990,
+                    imageResourceId = com.example.myapplication.R.drawable.ferrari_laferrari_car2,
+                    navController = navController
+                )
             }
         }
-        Column(
-            modifier = Modifier
-                .fillMaxWidth()
-                .background(SkyBlue)
-                .weight(1f),
-            verticalArrangement = Arrangement.Center
-        ) {
+        Column(modifier = Modifier
+            .fillMaxSize()
+            .background(SkyBlue),
+            verticalArrangement = Arrangement.Center) {
             navBar(navController = navController)
         }
     }
 }
 
 @Composable
-fun <T : Any> DataListScroll(navController: NavHostController, dataList: List<T>){
-    LazyColumn(
-        horizontalAlignment = Alignment.CenterHorizontally,
-        modifier = Modifier
-            .fillMaxWidth()
-    ){
-        item {
-            when {
-                dataList.isListOf<Card>() -> addNewListItem(navController, "editcard")
-
-            }
-        }
-        items(dataList){ item ->
-            when(item){
-                is Card -> CardListItem(item = item, navController = navController)
-            }
-        }
-    }
-}
-
-inline fun <reified T> List<*>.isListOf(): Boolean {
-    return isNotEmpty() && all { it is T }
-}
-
-
-@Composable
-fun CardListItem(item: Card, navController: NavHostController){
-    val context = LocalContext.current
-
-    val showDialog = remember {
-        mutableStateOf(false)
-    }
-
-    val delete = remember {
-        mutableStateOf(false)
-    }
+private fun ListItem(name: String,
+                     mileage: Int,
+                     location: String,
+                     price: Int,
+                     imageResourceId: Int,
+                     navController: NavHostController) {
+    var borderColor = remember { mutableStateOf(Color.Gray) }
 
     Card(
         modifier = Modifier
             .fillMaxWidth()
             .padding(10.dp)
-            .border(2.dp, Color.Gray, RoundedCornerShape(15.dp)),
+            .border(2.dp, borderColor.value, RoundedCornerShape(15.dp))
+            .clickable { borderColor.value = Color.LightGray },
         shape = RoundedCornerShape(15.dp),
-        elevation = CardDefaults.cardElevation(defaultElevation = 5.dp)
-    ) {
-        Column(
-            modifier = Modifier.fillMaxSize()
-        ) {
-            Row(
-                verticalAlignment = Alignment.Top
-            ){
-                Image(bitmap = item.image.asImageBitmap(),
-                    contentDescription = item.name,
+        elevation = CardDefaults.cardElevation(defaultElevation = 5.dp),
+    ){
+        Box() {
+            Row(verticalAlignment = Alignment.CenterVertically){
+                Image(
+                    painter = painterResource(id = imageResourceId),
+                    contentDescription = "image",
                     contentScale = ContentScale.Crop,
-                    modifier = Modifier
-                        .width(128.dp)
-                        .height(256.dp))
+                    modifier = Modifier.size(128.dp))
                 Column (
-                    modifier = Modifier.padding(8.dp)
-                ){
-                    Text(
-                        text = "Название: ${item.name} \nРасположение: ${item.location} \nПробег: ${item.mileage} \nЦена: ${item.price}",
-                        fontSize = 20.sp,
-                        fontWeight = FontWeight.Bold
-                    )
-                    DataListItemButton("Изменить", Color.LightGray, Color.White, onClickAction = {
-                        navController.navigate("editcard/${item.id}")
-                    })
-                    DataListItemButton("Удалить", Color.Black, Color.White, onClickAction = {
-                        showDialog.value = !showDialog.value
-                    })
+                    modifier = Modifier.padding(5.dp)) {
+                    Text(text = name, fontFamily = FontFamily.SansSerif, fontWeight = FontWeight.Bold)
+                    Text(text = "Пробег: " + mileage)
+                    Text(text = "Расположение: " + location)
+                    Text(text = "Цена: " + price)
+                    Button(onClick = { navController.navigate("editCard") }) {
+                        Text("Изменить")
+                    }
+                    Button(onClick = { }) {
+                        Text("Удалить")
+                    }
                 }
             }
-        }
-    }
 
-    if(showDialog.value) {
-        DialogWindow(label = "Подтверждение",
-            message = "Вы уверены что хотите удалить запись?", onConfirmAction = {
-                delete.value = !delete.value
-                showDialog.value = !showDialog.value
-            }, onDismissAction = {
-                showDialog.value = !showDialog.value
-            })
-    }
-
-    if(delete.value) {
-        LaunchedEffect(Unit){
-            withContext(Dispatchers.IO){
-                MobileAppDataBase.getInstance(context).cardDao().delete(item)
-            }
-        }
-        delete.value = !delete.value
-        navController.navigate("mainScreen")
-    }
-}
-
-
-@Composable
-fun DataListItemButton(label: String, backgroundColor: Color, textColor: Color, onClickAction: () -> Unit){
-    Button(
-        onClick = onClickAction,
-        modifier = Modifier.requiredHeight(64.dp),
-        shape = RoundedCornerShape(10.dp),
-        colors = ButtonDefaults.buttonColors(
-            containerColor = backgroundColor
-        )
-    ) {
-        Text(
-            text = label,
-            color = textColor,
-            fontSize = 18.sp,
-        )
-    }
-}
-
-@Composable
-fun DialogWindow(label: String, message: String, onConfirmAction: () -> Unit, onDismissAction: () -> Unit){
-    AlertDialog(onDismissRequest = onDismissAction,
-        title = {
-            Text(text = label,
-                fontSize = 20.sp,
-                fontWeight = FontWeight.Bold)
-        },
-        text = {
-            Text(text = message)
-        },
-        confirmButton = {
-            Button(
-                onClick = onConfirmAction,
-                colors = ButtonDefaults.buttonColors(
-                    containerColor = Color.Green
-                ),
-                shape = RoundedCornerShape(5.dp)
-            ) {
-                Text(text = "Подтвердить",
-                    color = Color.White)
-            }
-        },
-        dismissButton = {
-            Button(
-                onClick = onDismissAction,
-                colors = ButtonDefaults.buttonColors(
-                    containerColor = Color.Red
-                ),
-                shape = RoundedCornerShape(5.dp)
-            ) {
-                Text(text = "Отмена",
-                    color = Color.Black)
-            }
-        }
-    )
-}
-
-@Composable
-fun addNewListItem(navController: NavHostController, destination: String){
-    Card(
-        modifier = Modifier
-            .fillMaxWidth()
-            .padding(start = 18.dp, top = 8.dp, end = 18.dp, bottom = 8.dp)
-            .clickable {
-                navController.navigate(destination)
-            },
-        shape = RoundedCornerShape(15.dp),
-        colors = CardDefaults.cardColors(
-            containerColor = Color.White
-        ),
-        elevation = CardDefaults.cardElevation(
-            defaultElevation = 8.dp
-        )
-    ) {
-        Column(
-            modifier = Modifier.fillMaxSize()
-        ) {
-            Row(
-                modifier = Modifier.fillMaxWidth(),
-                verticalAlignment = Alignment.CenterVertically
-            ){
-                Image(painter = painterResource(id = R.drawable.plus),
-                    contentDescription = "additem",
-                    contentScale = ContentScale.Crop,
-                    modifier = Modifier
-                        .size(96.dp)
-                        .padding(8.dp))
-                Text(
-                    text = "Добавить",
-                    fontSize = 28.sp,
-                    fontWeight = FontWeight.Bold,
-                    modifier = Modifier.padding(start = 32.dp))
-            }
         }
     }
 }
-

app/src/main/java/com/example/myapplication/screens/user.kt

@@ -12,15 +12,9 @@ import androidx.compose.foundation.layout.size
 import androidx.compose.material3.Button
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.layout.ContentScale
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.unit.dp
 import androidx.navigation.NavController
@@ -28,30 +22,10 @@ import androidx.navigation.NavHostController
 import com.example.myapplication.R
 import com.example.myapplication.components.LoginField
 import com.example.myapplication.components.navBar
-import com.example.myapplication.database.MobileAppDataBase
-import com.example.myapplication.database.entities.User
 import com.example.myapplication.ui.theme.SkyBlue
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
 
 @Composable
 fun UserSettings(navController: NavHostController) {
-    val context = LocalContext.current
-
-    val login = remember { mutableStateOf("") }
-    val password = remember { mutableStateOf("") }
-    val userId = 1
-
-    userId?.let {
-        LaunchedEffect(Unit) {
-            withContext(Dispatchers.IO) {
-                val user = MobileAppDataBase.getInstance(context).userDao().getById(userId!!)
-                login.value = user!!.login
-                password.value = user!!.password
-            }
-        }
-    }
-
     Column {
         Box (modifier = Modifier.fillMaxHeight(0.9f)) {
             Column(
@@ -65,8 +39,10 @@ fun UserSettings(navController: NavHostController) {
                     modifier = Modifier
                         .size(300.dp)
                 )
-                LoginField(text = "Логин пользователя: ${login.value}")
-                LoginField(text = "Пароль пользователя: ${password.value}")
+                LoginField(text = "Логин пользователя")
+                LoginField(text = "Пароль пользователя")
+                LoginField(text = "Количество объявлений пользователя")
+                Button(onClick = {}) { Text("Посмотреть мои объявления") }
             }
         }
         Column(modifier = Modifier
@@ -76,4 +52,5 @@ fun UserSettings(navController: NavHostController) {
             navBar(navController = navController)
         }
     }
+
 }

build.gradle.kts

@@ -2,5 +2,4 @@
 plugins {
     id("com.android.application") version "8.1.1" apply false
     id("org.jetbrains.kotlin.android") version "1.8.10" apply false
-    id("com.google.devtools.ksp") version "1.8.20-1.0.11" apply false
 }