feat: option to change music cache size (#27)

* feat: option to change music cache size
you-apps · Oct 11, 2023 · f601aa5 · f601aa5
1 parent 6b48d83
commit f601aa5
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diff --git a/app/src/main/java/app/suhasdissa/mellowmusic/backend/services/PlayerService.kt b/app/src/main/java/app/suhasdissa/mellowmusic/backend/services/PlayerService.kt
@@ -18,6 +18,7 @@ import androidx.media3.datasource.DefaultDataSource
 import androidx.media3.datasource.DefaultHttpDataSource
 import androidx.media3.datasource.ResolvingDataSource
 import androidx.media3.datasource.cache.CacheDataSource
+import androidx.media3.datasource.cache.LeastRecentlyUsedCacheEvictor
 import androidx.media3.datasource.cache.NoOpCacheEvictor
 import androidx.media3.datasource.cache.SimpleCache
 import androidx.media3.exoplayer.ExoPlayer
@@ -35,6 +36,7 @@ import androidx.media3.session.MediaSession
 import androidx.media3.session.MediaSessionService
 import app.suhasdissa.mellowmusic.MellowMusicApplication
 import app.suhasdissa.mellowmusic.utils.DynamicDataSource
+import app.suhasdissa.mellowmusic.utils.Pref
 import app.suhasdissa.mellowmusic.utils.mediaIdList
 import coil.ImageLoader
 import coil.request.ErrorResult
@@ -60,7 +62,9 @@ class PlayerService : MediaSessionService(), MediaSession.Callback, Player.Liste
     @androidx.annotation.OptIn(androidx.media3.common.util.UnstableApi::class)
     override fun onCreate() {
         super.onCreate()
-        val cacheEvictor = NoOpCacheEvictor()
+        val maxMBytes = Pref.sharedPreferences.getInt(Pref.exoCacheKey, 0)
+        val cacheEvictor =
+            if (maxMBytes > 0) LeastRecentlyUsedCacheEvictor(maxMBytes * 1024 * 1024L) else NoOpCacheEvictor()
         val directory = cacheDir.resolve("exoplayer").also { directory ->
             directory.mkdir()
         }

diff --git a/app/src/main/java/app/suhasdissa/mellowmusic/ui/components/CacheSizeDialog.kt b/app/src/main/java/app/suhasdissa/mellowmusic/ui/components/CacheSizeDialog.kt
@@ -0,0 +1,63 @@
+package app.suhasdissa.mellowmusic.ui.components
+
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.lazy.grid.GridCells
+import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
+import androidx.compose.foundation.lazy.grid.items
+import androidx.compose.material3.AlertDialog
+import androidx.compose.material3.Button
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.FilterChip
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import app.suhasdissa.mellowmusic.R
+import app.suhasdissa.mellowmusic.utils.Pref
+import app.suhasdissa.mellowmusic.utils.formatMB
+import app.suhasdissa.mellowmusic.utils.rememberPreference
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun CacheSizeDialog(onDismissRequest: () -> Unit) {
+    val cacheSizes = listOf(0, 512, 1024, 1024 * 2, 1024 * 4, 1024 * 6)
+    var prefSize by rememberPreference(key = Pref.exoCacheKey, defaultValue = 0)
+    AlertDialog(
+        onDismissRequest,
+        title = { Text(stringResource(R.string.change_music_cache_size)) },
+        confirmButton = {
+            Button(onClick = {
+                onDismissRequest.invoke()
+            }) {
+                Text(text = stringResource(R.string.ok))
+            }
+        },
+        text = {
+            LazyVerticalGrid(
+                columns = GridCells.Fixed(3),
+                verticalArrangement = Arrangement.spacedBy(8.dp),
+                horizontalArrangement = Arrangement.spacedBy(8.dp)
+            ) {
+                items(items = cacheSizes) {
+                    FilterChip(
+                        selected = prefSize == it,
+                        onClick = { prefSize = it },
+                        label = {
+                            Text(
+                                if (it == 0) {
+                                    stringResource(
+                                        R.string.unlimited
+                                    )
+                                } else {
+                                    formatMB(it)
+                                }
+                            )
+                        }
+                    )
+                }
+            }
+        }
+    )
+}
diff --git a/app/src/main/java/app/suhasdissa/mellowmusic/ui/screens/settings/SettingsScreen.kt b/app/src/main/java/app/suhasdissa/mellowmusic/ui/screens/settings/SettingsScreen.kt
@@ -7,6 +7,7 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.SettingsBackupRestore
+import androidx.compose.material.icons.filled.Storage
 import androidx.compose.material.icons.filled.Web
 import androidx.compose.material.icons.outlined.Info
 import androidx.compose.material3.*
@@ -25,6 +26,7 @@ import app.suhasdissa.mellowmusic.Destination
 import app.suhasdissa.mellowmusic.R
 import app.suhasdissa.mellowmusic.backend.models.Login
 import app.suhasdissa.mellowmusic.backend.viewmodel.AuthViewModel
+import app.suhasdissa.mellowmusic.ui.components.CacheSizeDialog
 import app.suhasdissa.mellowmusic.ui.components.SettingItem
 
 @OptIn(ExperimentalMaterial3Api::class)
@@ -36,6 +38,7 @@ fun SettingsScreen(
     var showLoginDialog by remember { mutableStateOf(false) }
     val authViewModel: AuthViewModel = viewModel(factory = AuthViewModel.Factory)
     val topBarBehavior = TopAppBarDefaults.exitUntilCollapsedScrollBehavior()
+    var showImageCacheDialog by remember { mutableStateOf(false) }
 
     Scaffold(modifier = modifier.fillMaxSize(), topBar = {
         LargeTopAppBar(
@@ -66,6 +69,16 @@ fun SettingsScreen(
                     icon = Icons.Default.Web
                 )
             }
+            item {
+                SettingItem(
+                    title = stringResource(R.string.music_cache_limit),
+                    description = stringResource(R.string.change_music_cache_size),
+                    onClick = {
+                        showImageCacheDialog = true
+                    },
+                    icon = Icons.Default.Storage
+                )
+            }
             /*
             item {
                 SettingItem(
@@ -115,4 +128,9 @@ fun SettingsScreen(
             }
         )
     }
+    if (showImageCacheDialog) {
+        CacheSizeDialog {
+            showImageCacheDialog = false
+        }
+    }
 }
diff --git a/app/src/main/java/app/suhasdissa/mellowmusic/utils/Convertions.kt b/app/src/main/java/app/suhasdissa/mellowmusic/utils/Convertions.kt
@@ -0,0 +1,9 @@
+package app.suhasdissa.mellowmusic.utils
+
+import kotlin.math.ln
+import kotlin.math.pow
+
+fun formatMB(mb: Int): String {
+    val index = (ln(mb.toDouble()) / ln(1024.0)).toInt()
+    return "${mb.div(1024f.pow(index)).toInt()} ${arrayOf("M", "G", "T")[index]}B"
+}
diff --git a/app/src/main/java/app/suhasdissa/mellowmusic/utils/Pref.kt b/app/src/main/java/app/suhasdissa/mellowmusic/utils/Pref.kt
@@ -9,6 +9,7 @@ import kotlinx.serialization.json.Json
 object Pref {
     private const val pipedInstanceKey = "SelectedPipedInstanceKey"
     const val authTokenKey = "AuthTokenKey"
+    const val exoCacheKey = "ExoCacheKey"
 
     lateinit var sharedPreferences: SharedPreferences
 

diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
@@ -57,4 +57,8 @@
     <string name="local_music">Local Music</string>
     <string name="albums">Albums</string>
     <string name="artists">Artists</string>
+    <string name="ok">OK</string>
+    <string name="change_music_cache_size">Change music cache size</string>
+    <string name="music_cache_limit">Music cache limit</string>
+    <string name="unlimited">Unlimited</string>
 </resources>