Сделал кринж года, есть пагинация, но мне вообще не нравится не проект, не реализация, не мои программистические способности :(

This commit is contained in:
Кашин Максим 2023-11-23 22:45:17 +04:00
parent dc5cc2e862
commit e903f1729c
3 changed files with 75 additions and 8 deletions

View File

@ -62,6 +62,8 @@ dependencies {
implementation("androidx.lifecycle:lifecycle-viewmodel-compose:2.6.2")
implementation ("androidx.lifecycle:lifecycle-runtime-ktx:2.4.0")
implementation ("androidx.paging:paging-runtime:3.2.1")
implementation("androidx.core:core-ktx:1.9.0")
implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.6.1")

View File

@ -1,10 +1,20 @@
package com.example.labwork.button_navigation
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxHeight
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.layout.width
import androidx.compose.foundation.lazy.LazyColumn
import androidx.compose.foundation.lazy.itemsIndexed
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material.Button
import androidx.compose.material.ButtonDefaults
import androidx.compose.material.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.LaunchedEffect
import androidx.compose.runtime.collectAsState
@ -12,8 +22,12 @@ 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.graphics.Color
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import androidx.navigation.NavHostController
import com.example.labwork.database.DAO.UserDao
import com.example.labwork.models.Bicycle
@ -22,6 +36,7 @@ import com.example.labwork.pages.product.FormNewProduct
import com.example.labwork.pages.product.ListProduct
import com.example.labwork.pages.user.RegisteryOrLogin
import com.example.labwork.repository.BicycleRepository
import com.example.labwork.ui.theme.LightBluePolitech
import com.example.labwork.viewmodel.BicycleViewModel
import com.example.labwork.viewmodel.UserViewModel
import kotlinx.coroutines.Dispatchers
@ -43,25 +58,76 @@ fun ScreenListProduct(
navHostController: NavHostController
) {
val bicycles by bicycleViewModel.bicycles.collectAsState()
var currentIndex by remember { mutableStateOf(0) }
LaunchedEffect(Unit) {
bicycleViewModel.fetchBicycles()
}
val paginatedBicycles = bicycles.chunked(3)
Column(
modifier = Modifier.fillMaxHeight().padding(bottom = 65.dp)
) {
Column(
horizontalAlignment = Alignment.CenterHorizontally,
modifier = Modifier.fillMaxWidth().padding(top = 8.dp)
) {
Button(
colors = ButtonDefaults.buttonColors(backgroundColor = LightBluePolitech),
modifier = Modifier
.fillMaxWidth()
.padding(9.dp),
onClick = {
if (currentIndex > 0) {
currentIndex--
}
},
shape = RoundedCornerShape(15.dp),
enabled = currentIndex > 0
) {
Text(text = "Предыдущая страничка",
color = Color.White,
fontSize = 10.sp,
textAlign = TextAlign.Center)
}
Spacer(modifier = Modifier.width(8.dp))
Button(
colors = ButtonDefaults.buttonColors(backgroundColor = LightBluePolitech),
modifier = Modifier
.fillMaxWidth()
.padding(9.dp),
onClick = {
if (currentIndex < paginatedBicycles.size - 1) {
currentIndex++
}
},
shape = RoundedCornerShape(15.dp),
enabled = currentIndex < paginatedBicycles.size - 1
) {
Text(text = "Следущая страничка",
color = Color.White,
fontSize = 10.sp,
textAlign = TextAlign.Center)
}
}
FormNewProduct(bicycleViewModel, navHostController)
LazyColumn {
itemsIndexed(bicycles) { index, item ->
ListProduct(
item = item,
bicycleViewModel = bicycleViewModel,
navHostController = navHostController
)
paginatedBicycles.getOrNull(currentIndex)?.let { paginatedList ->
itemsIndexed(paginatedList) { _, item ->
ListProduct(
item = item,
bicycleViewModel = bicycleViewModel,
navHostController = navHostController
)
}
}
}
}
}

View File

@ -59,7 +59,6 @@ fun LoginPage(
user?.let { userProfile ->
ProfileForm(item = userProfile, userViewModel = userViewModel, navHostController = navHostController)
}
//navHostController.navigate("Info")
}
else {