3-ая вроде сделал

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

@@ -19,12 +19,14 @@ 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
@@ -41,11 +43,14 @@ 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.CreateCard
+import com.example.myapplication.screens.EditCardScreen
-import com.example.myapplication.screens.EditCard
+import com.example.myapplication.screens.EditUserScreen
 import com.example.myapplication.ui.theme.MyApplicationTheme
 import com.example.myapplication.screens.MainScreen
 import com.example.myapplication.screens.Registration
@@ -69,11 +74,13 @@ class MainActivity : ComponentActivity() {
     }
 }
 
+@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun AppNavigation(navController: NavHostController){
     NavHost(
         navController = navController, startDestination = "authorization"
     ) {
+
         composable("authorization") {
             Authorization(navController = navController)
         }
@@ -83,14 +90,22 @@ fun AppNavigation(navController: NavHostController){
         composable("registration") {
             Registration(navController = navController)
         }
-        composable("createCard") {
-            CreateCard(navController = navController)
-        }
         composable("userSettings") {
             UserSettings(navController = navController)
         }
-        composable("editCard") {
+        composable("editcard") {
-            EditCard(navController = navController)
+            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)
         }
     }
 }

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

@@ -0,0 +1,69 @@
+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, "createCard")
+        navItem(navController = navController, ImageId = R.drawable.note_image, "editcard")
         navItem(navController = navController, ImageId = R.drawable.profile_image, "userSettings")
     }
 }

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

@@ -83,32 +83,6 @@ abstract class MobileAppDataBase : RoomDatabase() {
                         userId = 2
                     )
                 )
-                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

@@ -15,7 +15,7 @@ interface CardDao {
     fun getAll(): Flow<List<Card>>
 
     @Query("select * from cards where cards.id = :id")
-    fun getById(id: Int): Flow<Card?>
+    fun getById(id: Int): Card?
 
     @Query("select * from cards where cards.user_id = :userId")
     fun getByUserId(userId: Int): Flow<List<Card>>

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

@@ -19,7 +19,7 @@ interface UserDao {
     fun getAll(): Flow<List<User>>
 
     @Query("select * from users where users.id = :id")
-    fun getById(id: Int): Flow<User?>
+    fun getById(id: Int): User?
 
     @Insert(onConflict = OnConflictStrategy.IGNORE)
     suspend fun insert(user: User)

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

@@ -1,50 +0,0 @@
-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

@@ -1,50 +1,223 @@
 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 EditCard(navController: NavHostController) {
+fun EditCardScreen(navController: NavHostController, cardId: Int? = null) {
-    Column {
+    val context = LocalContext.current
-        Box (modifier = Modifier.fillMaxHeight(0.9f)) {
+
-            Column(
+    val image = remember { mutableStateOf<Bitmap>(BitmapFactory.decodeResource(context.resources, R.drawable.ferrari_laferrari_car2)) }
-                modifier = Modifier.fillMaxWidth(),
+    val name = remember { mutableStateOf("") }
-                horizontalAlignment = Alignment.CenterHorizontally
+    val location = remember { mutableStateOf("") }
-            ) {
+    val price = remember { mutableStateOf(0) }
-                Button(onClick = { /*TODO*/ }) {
+    val mileage = remember { mutableStateOf(0) }
-                    Text("Добавить картинку")
+
-                }
+    val imageData = remember { mutableStateOf<Uri?>(null) }
-                LoginField(text = "Название/Марка")
+    val launcher =
-                LoginField(text = "Пробег")
+        rememberLauncherForActivityResult(ActivityResultContracts.GetContent()) { uri: Uri? ->
-                LoginField(text = "Расположение")
+            imageData.value = uri
-                LoginField(text = "Цена")
+        }
-                Button(onClick = { /*TODO*/ }) {
+    imageData.value?.let {
-                    Text("Изменить объявление")
+        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)
+                        )
                 }
             }
         }
-        Column(modifier = Modifier
+        edit.value = !edit.value
+        navController.navigate("mainScreen")
+    }
+
+    Column(
+        modifier = Modifier
             .fillMaxSize()
-            .background(SkyBlue),
+            .padding(bottom = 8.dp)
-            verticalArrangement = Arrangement.Center) {
+            .verticalScroll(rememberScrollState()),
-            navBar(navController = navController)
+        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)
         }
     }
+
+    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

@@ -70,7 +70,7 @@ fun MainScreen(navController: NavHostController) {
             }
         }
     }
-
+    
     Column {
         Box(modifier = Modifier
             .padding(horizontal = 10.dp)
@@ -122,10 +122,6 @@ inline fun <reified T> List<*>.isListOf(): Boolean {
 fun CardListItem(item: Card, navController: NavHostController){
     val context = LocalContext.current
 
-    val isExpanded = remember {
-        mutableStateOf(false)
-    }
-
     val showDialog = remember {
         mutableStateOf(false)
     }
@@ -158,24 +154,14 @@ fun CardListItem(item: Card, navController: NavHostController){
                     modifier = Modifier.padding(8.dp)
                 ){
                     Text(
-                        text = "${item.name} | ${item.location} | ${item.mileage} | ${item.price}",
+                        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}")
-            AnimatedVisibility(
-                visible = isExpanded.value,
-                modifier = Modifier.fillMaxWidth()
-            ) {
-                Row(
-                    modifier = Modifier.fillMaxWidth(),
-                    horizontalArrangement = Arrangement.End
-                ){
-                    DataListItemButton("Изменить", Color.Yellow, Color.White, onClickAction = {
-                        navController.navigate("editstory/${item.id}")
                     })
-                    DataListItemButton("Удалить", Color.Red, Color.White, onClickAction = {
+                    DataListItemButton("Удалить", Color.Black, Color.White, onClickAction = {
                         showDialog.value = !showDialog.value
                     })
                 }
@@ -200,7 +186,7 @@ fun CardListItem(item: Card, navController: NavHostController){
             }
         }
         delete.value = !delete.value
-        navController.navigate("story")
+        navController.navigate("mainScreen")
     }
 }
 
@@ -272,7 +258,7 @@ fun addNewListItem(navController: NavHostController, destination: String){
             },
         shape = RoundedCornerShape(15.dp),
         colors = CardDefaults.cardColors(
-            containerColor = SkyBlue
+            containerColor = Color.White
         ),
         elevation = CardDefaults.cardElevation(
             defaultElevation = 8.dp
@@ -285,7 +271,7 @@ fun addNewListItem(navController: NavHostController, destination: String){
                 modifier = Modifier.fillMaxWidth(),
                 verticalAlignment = Alignment.CenterVertically
             ){
-                Image(painter = painterResource(id = R.drawable.login),
+                Image(painter = painterResource(id = R.drawable.plus),
                     contentDescription = "additem",
                     contentScale = ContentScale.Crop,
                     modifier = Modifier

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

@@ -12,9 +12,15 @@ 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
@@ -22,10 +28,30 @@ 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(
@@ -39,10 +65,8 @@ fun UserSettings(navController: NavHostController) {
                     modifier = Modifier
                         .size(300.dp)
                 )
-                LoginField(text = "Логин пользователя")
+                LoginField(text = "Логин пользователя: ${login.value}")
-                LoginField(text = "Пароль пользователя")
+                LoginField(text = "Пароль пользователя: ${password.value}")
-                LoginField(text = "Количество объявлений пользователя")
-                Button(onClick = {}) { Text("Посмотреть мои объявления") }
             }
         }
         Column(modifier = Modifier
@@ -52,5 +76,4 @@ fun UserSettings(navController: NavHostController) {
             navBar(navController = navController)
         }
     }
-
 }