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michal92299michal92299
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Create WallpapersScreen.kt
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‎source-code/app/src/main/java/com/hackeros/app/ui/screens/WallpapersScreen.kt‎

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package com.hackeros.app.ui.screens
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import android.content.ContentValues
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import android.content.Context
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import android.os.Build
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import android.os.Environment
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import android.provider.MediaStore
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import android.widget.Toast
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import androidx.compose.foundation.background
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import androidx.compose.foundation.border
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import androidx.compose.foundation.clickable
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import androidx.compose.foundation.layout.*
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import androidx.compose.foundation.lazy.grid.GridCells
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import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
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import androidx.compose.foundation.lazy.grid.items
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import androidx.compose.foundation.shape.RoundedCornerShape
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import androidx.compose.material.icons.Icons
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import androidx.compose.material.icons.filled.Close
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import androidx.compose.material.icons.filled.Download
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import androidx.compose.material.icons.filled.Fullscreen
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import androidx.compose.material3.*
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import androidx.compose.runtime.*
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import androidx.compose.ui.Alignment
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.draw.clip
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.layout.ContentScale
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import androidx.compose.ui.platform.LocalContext
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import androidx.compose.ui.text.font.FontFamily
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import androidx.compose.ui.text.font.FontWeight
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import androidx.compose.ui.unit.dp
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import androidx.compose.ui.unit.sp
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import androidx.compose.ui.window.Dialog
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import androidx.compose.ui.window.DialogProperties
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import coil.compose.AsyncImage
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import com.hackeros.app.WallpaperItem
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import com.hackeros.app.ui.theme.LocalAppTheme
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import com.hackeros.app.ui.theme.backgroundColor
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import com.hackeros.app.ui.theme.cardColor
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import com.hackeros.app.ui.theme.mutedColor
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import com.hackeros.app.ui.theme.primaryColor
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import com.hackeros.app.ui.theme.textColor
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import com.hackeros.app.utils.Translations
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import kotlinx.coroutines.Dispatchers
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import kotlinx.coroutines.launch
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import kotlinx.coroutines.withContext
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import java.io.InputStream
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import java.net.URL
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@Composable
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fun WallpapersScreen(
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wallpapers: List<WallpaperItem>,
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translations: Translations
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) {
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val theme = LocalAppTheme.current
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val t = translations
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val context = LocalContext.current
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val scope = rememberCoroutineScope()
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var selectedWallpaper by remember { mutableStateOf<WallpaperItem?>(null) }
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var downloading by remember { mutableStateOf(false) }
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Column(modifier = Modifier.fillMaxSize()) {
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// Header
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Column(modifier = Modifier.padding(start = 24.dp, end = 24.dp, top = 8.dp, bottom = 20.dp)) {
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Text(
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text = t.header_wallpapers,
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fontFamily = FontFamily.Monospace,
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fontWeight = FontWeight.Bold,
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fontSize = 28.sp,
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color = Color.White
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)
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Text(
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text = t.sub_wallpapers,
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fontSize = 13.sp,
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color = theme.mutedColor(),
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modifier = Modifier.padding(top = 2.dp)
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)
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}
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LazyVerticalGrid(
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columns = GridCells.Fixed(2),
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contentPadding = PaddingValues(start = 16.dp, end = 16.dp, bottom = 100.dp),
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horizontalArrangement = Arrangement.spacedBy(12.dp),
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verticalArrangement = Arrangement.spacedBy(12.dp)
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) {
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items(wallpapers) { wp ->
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WallpaperThumbnail(
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wallpaper = wp,
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hdLabel = t.hd_asset,
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primaryColor = theme.primaryColor(),
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onClick = { selectedWallpaper = wp }
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)
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}
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}
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}
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// Fullscreen preview modal
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selectedWallpaper?.let { wp ->
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Dialog(
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onDismissRequest = { selectedWallpaper = null },
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properties = DialogProperties(usePlatformDefaultWidth = false)
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) {
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Box(
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modifier = Modifier
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.fillMaxSize()
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.background(Color.Black.copy(alpha = 0.96f)),
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contentAlignment = Alignment.Center
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) {
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// Close button
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IconButton(
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onClick = { selectedWallpaper = null },
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modifier = Modifier
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.align(Alignment.TopEnd)
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.padding(16.dp)
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.clip(androidx.compose.foundation.shape.CircleShape)
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.background(Color.White.copy(alpha = 0.1f))
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) {
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Icon(Icons.Default.Close, null, tint = Color.White.copy(alpha = 0.8f))
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}
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// Image
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Box(
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modifier = Modifier
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.fillMaxWidth(0.9f)
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.aspectRatio(9f / 16f)
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.clip(RoundedCornerShape(20.dp))
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.border(1.dp, Color.White.copy(alpha = 0.1f), RoundedCornerShape(20.dp))
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) {
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AsyncImage(
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model = wp.url,
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contentDescription = wp.name,
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contentScale = ContentScale.Crop,
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modifier = Modifier.fillMaxSize()
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)
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}
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// Download button
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Button(
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onClick = {
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scope.launch {
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downloading = true
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downloadImage(context, wp.url, wp.name)
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downloading = false
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Toast.makeText(context, "Saved to Downloads", Toast.LENGTH_SHORT).show()
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}
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},
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enabled = !downloading,
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colors = ButtonDefaults.buttonColors(containerColor = theme.primaryColor()),
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shape = RoundedCornerShape(14.dp),
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modifier = Modifier
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.align(Alignment.BottomCenter)
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.fillMaxWidth(0.85f)
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.padding(bottom = 40.dp)
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.height(56.dp)
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) {
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if (downloading) {
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CircularProgressIndicator(
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color = theme.backgroundColor(),
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modifier = Modifier.size(20.dp),
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strokeWidth = 2.dp
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)
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Spacer(Modifier.width(12.dp))
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Text(t.downloading, fontWeight = FontWeight.Bold, fontSize = 15.sp,
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color = theme.backgroundColor())
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} else {
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Icon(Icons.Default.Download, null, tint = theme.backgroundColor(),
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modifier = Modifier.size(22.dp))
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Spacer(Modifier.width(12.dp))
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Text(t.download_save, fontWeight = FontWeight.Bold, fontSize = 15.sp,
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color = theme.backgroundColor())
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}
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}
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}
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}
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}
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}
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@Composable
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private fun WallpaperThumbnail(
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wallpaper: WallpaperItem,
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hdLabel: String,
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primaryColor: Color,
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onClick: () -> Unit
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) {
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Box(
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modifier = Modifier
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.fillMaxWidth()
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.aspectRatio(9f / 16f)
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.clip(RoundedCornerShape(16.dp))
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.border(1.dp, Color.White.copy(alpha = 0.05f), RoundedCornerShape(16.dp))
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.clickable(onClick = onClick)
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) {
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AsyncImage(
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model = wallpaper.url,
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contentDescription = wallpaper.name,
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contentScale = ContentScale.Crop,
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modifier = Modifier.fillMaxSize()
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)
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// Gradient overlay
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Box(
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modifier = Modifier
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.fillMaxSize()
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.background(
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androidx.compose.ui.graphics.Brush.verticalGradient(
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colors = listOf(Color.Transparent, Color.Black.copy(alpha = 0.75f)),
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startY = 200f
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)
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)
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)
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Column(
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modifier = Modifier
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.align(Alignment.BottomStart)
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.padding(12.dp)
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) {
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Text(
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text = wallpaper.name,
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color = Color.White,
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fontWeight = FontWeight.Bold,
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fontSize = 12.sp
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)
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Spacer(Modifier.height(4.dp))
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Row(
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modifier = Modifier
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.clip(RoundedCornerShape(4.dp))
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.background(Color.Black.copy(alpha = 0.5f))
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.padding(horizontal = 6.dp, vertical = 3.dp),
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verticalAlignment = Alignment.CenterVertically,
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horizontalArrangement = Arrangement.spacedBy(4.dp)
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) {
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Icon(Icons.Default.Fullscreen, null,
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tint = primaryColor, modifier = Modifier.size(9.dp))
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Text(
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text = hdLabel,
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fontSize = 9.sp,
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fontFamily = FontFamily.Monospace,
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color = primaryColor
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)
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}
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}
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}
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}
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private suspend fun downloadImage(context: Context, url: String, name: String) {
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withContext(Dispatchers.IO) {
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try {
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val stream: InputStream = URL(url).openStream()
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val bytes = stream.readBytes()
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stream.close()
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val filename = "HackerOS_${name.replace(" ", "_")}_${System.currentTimeMillis()}.png"
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
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val values = ContentValues().apply {
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put(MediaStore.Images.Media.DISPLAY_NAME, filename)
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put(MediaStore.Images.Media.MIME_TYPE, "image/png")
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put(MediaStore.Images.Media.RELATIVE_PATH, Environment.DIRECTORY_DOWNLOADS)
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}
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val uri = context.contentResolver.insert(MediaStore.Downloads.EXTERNAL_CONTENT_URI, values)
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uri?.let {
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context.contentResolver.openOutputStream(it)?.use { os -> os.write(bytes) }
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}
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} else {
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val dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)
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dir.mkdirs()
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java.io.File(dir, filename).writeBytes(bytes)
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}
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} catch (_: Exception) {}
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}
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}

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