Add Switch preferences component

app/build.gradle

@@ -9,6 +9,7 @@ plugins {
     id "kotlin-parcelize"
     id "checkstyle"
     id "org.sonarqube" version "4.0.0.2929"
+    id 'com.google.dagger.hilt.android'
 }
 
 android {
@@ -193,6 +194,10 @@ sonar {
     }
 }
 
+kapt {
+    correctErrorTypes true
+}
+
 dependencies {
 /** Desugaring **/
     coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs_nio:2.0.4'
@@ -295,6 +300,10 @@ dependencies {
     implementation 'androidx.activity:activity-compose'
     implementation 'androidx.compose.ui:ui-tooling-preview'
 
+    // Hilt
+    implementation("com.google.dagger:hilt-android:2.51.1")
+    kapt("com.google.dagger:hilt-compiler:2.51.1")
+
 /** Debugging **/
     // Memory leak detection
     debugImplementation "com.squareup.leakcanary:leakcanary-object-watcher-android:${leakCanaryVersion}"

app/src/main/java/org/schabi/newpipe/App.java

@@ -32,6 +32,7 @@ import java.net.SocketException;
 import java.util.List;
 import java.util.Objects;
 
+import dagger.hilt.android.HiltAndroidApp;
 import io.reactivex.rxjava3.exceptions.CompositeException;
 import io.reactivex.rxjava3.exceptions.MissingBackpressureException;
 import io.reactivex.rxjava3.exceptions.OnErrorNotImplementedException;
@@ -57,6 +58,7 @@ import io.reactivex.rxjava3.plugins.RxJavaPlugins;
  * along with NewPipe.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+@HiltAndroidApp
 public class App extends Application {
     public static final String PACKAGE_NAME = BuildConfig.APPLICATION_ID;
     private static final String TAG = App.class.toString();

app/src/main/java/org/schabi/newpipe/AppModule.kt

@@ -0,0 +1,22 @@
+package org.schabi.newpipe
+
+import android.content.Context
+import android.content.SharedPreferences
+import androidx.preference.PreferenceManager
+import dagger.Module
+import dagger.Provides
+import dagger.hilt.InstallIn
+import dagger.hilt.android.qualifiers.ApplicationContext
+import dagger.hilt.components.SingletonComponent
+import javax.inject.Singleton
+
+@Module
+@InstallIn(SingletonComponent::class)
+class AppModule {
+
+    @Provides
+    @Singleton
+    fun providesSharedPreference(@ApplicationContext context: Context): SharedPreferences {
+        return PreferenceManager.getDefaultSharedPreferences(context)
+    }
+}

app/src/main/java/org/schabi/newpipe/settings/SettingsScreen.kt

@@ -0,0 +1,26 @@
+package org.schabi.newpipe.settings
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.padding
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.unit.dp
+import org.schabi.newpipe.R
+import org.schabi.newpipe.settings.viewmodel.SettingsViewModel
+import org.schabi.newpipe.ui.SwitchPreference
+
+@Composable
+fun SettingsScreen(viewModel: SettingsViewModel, modifier: Modifier = Modifier) {
+    val settingsLayoutRedesign by viewModel.settingsLayoutRedesign.collectAsState()
+
+    Column(modifier = modifier) {
+        SwitchPreference(
+            R.string.settings_layout_redesign,
+            settingsLayoutRedesign,
+            viewModel::toggleSettingsLayoutRedesign,
+            modifier = Modifier.padding(4.dp)
+        )
+    }
+}

app/src/main/java/org/schabi/newpipe/settings/SettingsV2Activity.kt

@@ -3,17 +3,22 @@ package org.schabi.newpipe.settings
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
+import androidx.activity.viewModels
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.Scaffold
-import androidx.compose.material3.Text
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.res.stringResource
+import dagger.hilt.android.AndroidEntryPoint
 import org.schabi.newpipe.R
+import org.schabi.newpipe.settings.viewmodel.SettingsViewModel
 import org.schabi.newpipe.ui.Toolbar
 import org.schabi.newpipe.ui.theme.AppTheme
 
+@AndroidEntryPoint
 class SettingsV2Activity : ComponentActivity() {
 
+    private val settingsViewModel: SettingsViewModel by viewModels()
+
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
@@ -26,8 +31,8 @@ class SettingsV2Activity : ComponentActivity() {
                         onSearchQueryChange = null // TODO: Add suggestions logic
                     )
                 }) { padding ->
-                    Text(
-                        text = "Settings",
+                    SettingsScreen(
+                        viewModel = settingsViewModel,
                         modifier = Modifier.padding(padding)
                     )
                 }

app/src/main/java/org/schabi/newpipe/settings/viewmodel/SettingsViewModel.kt

@@ -0,0 +1,39 @@
+package org.schabi.newpipe.settings.viewmodel
+
+import android.app.Application
+import android.content.Context
+import android.content.SharedPreferences
+import androidx.core.content.ContextCompat
+import androidx.lifecycle.AndroidViewModel
+import dagger.hilt.android.lifecycle.HiltViewModel
+import dagger.hilt.android.qualifiers.ApplicationContext
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import org.schabi.newpipe.R
+import javax.inject.Inject
+
+@HiltViewModel
+class SettingsViewModel @Inject constructor(
+    @ApplicationContext context: Context,
+    private val preferenceManager: SharedPreferences
+) :
+    AndroidViewModel(context.applicationContext as Application) {
+
+    private var _settingsLayoutRedesignPref: Boolean
+        get() = preferenceManager.getBoolean(
+            ContextCompat.getString(getApplication(), R.string.settings_layout_redesign_key), false
+        )
+        set(value) {
+            preferenceManager.edit().putBoolean(
+                ContextCompat.getString(getApplication(), R.string.settings_layout_redesign_key),
+                value
+            ).apply()
+        }
+    private val _settingsLayoutRedesign: MutableStateFlow<Boolean> = MutableStateFlow(_settingsLayoutRedesignPref)
+    val settingsLayoutRedesign = _settingsLayoutRedesign.asStateFlow()
+
+    fun toggleSettingsLayoutRedesign(newState: Boolean) {
+        _settingsLayoutRedesign.value = newState
+        _settingsLayoutRedesignPref = newState
+    }
+}

app/src/main/java/org/schabi/newpipe/ui/SwitchPreference.kt

@@ -0,0 +1,39 @@
+package org.schabi.newpipe.ui
+
+import androidx.annotation.StringRes
+import androidx.compose.foundation.layout.Arrangement
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.padding
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Switch
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.unit.dp
+
+@Composable
+fun SwitchPreference(
+    @StringRes name: Int,
+    isChecked: Boolean,
+    onCheckedChange: (Boolean) -> Unit,
+    modifier: Modifier = Modifier
+) {
+    Row(
+        verticalAlignment = Alignment.CenterVertically,
+        horizontalArrangement = Arrangement.SpaceBetween,
+        modifier = modifier
+    ) {
+        Text(
+            text = stringResource(id = name),
+            modifier = Modifier.padding(4.dp),
+            style = MaterialTheme.typography.bodyMedium,
+            textAlign = TextAlign.Start,
+        )
+        Spacer(modifier = Modifier.weight(1f))
+        Switch(checked = isChecked, onCheckedChange = onCheckedChange)
+    }
+}

build.gradle

@@ -9,6 +9,7 @@ buildscript {
     dependencies {
         classpath 'com.android.tools.build:gradle:8.2.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
+        classpath 'com.google.dagger:hilt-android-gradle-plugin:2.51.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files