PreventAudioFocus Settings Activity

PreventAudioFocus/build.gradle.kts

@@ -1,12 +1,18 @@
 plugins {
     alias(libs.plugins.buildlogic.android.application)
+    alias(libs.plugins.buildlogic.kotlin.android)
 }
 
 android {
     namespace = "com.programminghoch10.PreventAudioFocus"
 
     defaultConfig {
         minSdk = 23
-        targetSdk = 35
+        targetSdk = 36
     }
 }
+
+dependencies {
+    implementation(libs.androidx.fragment.ktx)
+    implementation(libs.androidx.preference.ktx)
+}

PreventAudioFocus/src/main/AndroidManifest.xml

@@ -2,18 +2,31 @@
 <manifest
     xmlns:android="http://schemas.android.com/apk/res/android">
 
-    <application android:label="PreventAudioFocus">
+    <application android:label="@string/app_name">
+        <activity
+            android:name=".SettingsActivity"
+            android:excludeFromRecents="true"
+            android:exported="true"
+            android:label="@string/title_activity_settings"
+            android:theme="@style/AppTheme"
+            >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="de.robv.android.xposed.category.MODULE_SETTINGS" />
+            </intent-filter>
+        </activity>
+
         <meta-data
             android:name="xposedmodule"
             android:value="true"
             />
         <meta-data
             android:name="xposeddescription"
-            android:value="Prevent apps from acquiring audio focus"
+            android:value="@string/description"
             />
         <meta-data
             android:name="xposedminversion"
-            android:value="82"
+            android:value="93"
             />
         <meta-data
             android:name="xposedscope"

PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/Common.kt

@@ -0,0 +1,9 @@
+package com.programminghoch10.PreventAudioFocus
+
+import android.media.AudioManager
+
+val SHARED_PREFERENCES_NAME = "audiofocus"
+
+val ENTRIES = AudioManager::class.java.declaredFields.filter { it.name.startsWith("AUDIOFOCUS_REQUEST") }.associate { it.name to it.getInt(null) }
+
+val ENTRIES_DEFAULT = AudioManager.AUDIOFOCUS_REQUEST_GRANTED

PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/Hook.kt

@@ -0,0 +1,30 @@
+package com.programminghoch10.PreventAudioFocus
+
+import android.media.AudioManager
+import de.robv.android.xposed.IXposedHookLoadPackage
+import de.robv.android.xposed.XC_MethodReplacement
+import de.robv.android.xposed.XSharedPreferences
+import de.robv.android.xposed.XposedBridge
+import de.robv.android.xposed.XposedHelpers
+import de.robv.android.xposed.callbacks.XC_LoadPackage.LoadPackageParam
+
+class Hook : IXposedHookLoadPackage {
+    override fun handleLoadPackage(lpparam: LoadPackageParam) {
+        var clazz: Class<*>? = AudioManager::class.java
+        if (lpparam.packageName == "android") clazz = XposedHelpers.findClass(
+            "com.android.server.audio.MediaFocusControl", lpparam.classLoader
+        )
+        val sharedPreferences = XSharedPreferences(BuildConfig.APPLICATION_ID, SHARED_PREFERENCES_NAME)
+        val constant = ENTRIES.map {
+            Triple(
+                it.key,
+                it.value,
+                sharedPreferences.getBoolean(it.key, false),
+            )
+        }.find { it.third }?.second ?: ENTRIES_DEFAULT
+        XposedBridge.hookAllMethods(
+            clazz, "requestAudioFocus", XC_MethodReplacement.returnConstant(constant)
+        )
+    }
+}
+

PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/RadioPreference.kt

@@ -0,0 +1,23 @@
+package com.programminghoch10.PreventAudioFocus
+
+import android.annotation.SuppressLint
+import android.content.Context
+import androidx.preference.CheckBoxPreference
+
+@SuppressLint("PrivateResource")
+class RadioPreference(context: Context) : CheckBoxPreference(context) {
+
+    init {
+        widgetLayoutResource = R.layout.radio
+    }
+
+    override fun setChecked(checked: Boolean) {
+        if (isChecked) return
+        super.setChecked(checked)
+    }
+
+    fun onRadioPreferenceSelected(radioPreference: RadioPreference) {
+        if (radioPreference == this) return
+        super.setChecked(false)
+    }
+}

PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/SettingsActivity.kt

@@ -0,0 +1,47 @@
+package com.programminghoch10.PreventAudioFocus
+
+import android.annotation.SuppressLint
+import android.os.Bundle
+import androidx.fragment.app.FragmentActivity
+import androidx.preference.PreferenceFragmentCompat
+
+class SettingsActivity : FragmentActivity() {
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.settings_activity)
+        if (savedInstanceState == null) {
+            supportFragmentManager.beginTransaction().replace(R.id.settings, SettingsFragment()).commit()
+        }
+        actionBar?.setDisplayHomeAsUpEnabled(true)
+    }
+
+    override fun onNavigateUp(): Boolean {
+        finish()
+        return true
+    }
+
+    class SettingsFragment : PreferenceFragmentCompat() {
+        @SuppressLint("WorldReadableFiles")
+        override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
+            preferenceManager.sharedPreferencesName = SHARED_PREFERENCES_NAME
+            preferenceManager.sharedPreferencesMode = MODE_WORLD_READABLE
+            val context = requireContext()
+            preferenceScreen = preferenceManager.createPreferenceScreen(context)
+
+            val radioPreferences = mutableListOf<RadioPreference>()
+            for (entry in ENTRIES) {
+                val preference = RadioPreference(context)
+                preference.key = entry.key
+                preference.title = entry.key
+                preference.setDefaultValue(entry.value == ENTRIES_DEFAULT)
+                radioPreferences.add(preference)
+                preference.setOnPreferenceChangeListener { preference, newValue ->
+                    radioPreferences.forEach { it.onRadioPreferenceSelected(preference as RadioPreference) }
+                    true
+                }
+                preferenceScreen.addPreference(preference)
+            }
+        }
+    }
+}

PreventAudioFocus/src/main/res/layout/radio.xml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RadioButton
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@android:id/checkbox"
+    style="@style/Widget.AppCompat.CompoundButton.RadioButton"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:background="@null"
+    android:clickable="false"
+    android:focusable="false"
+    />

PreventAudioFocus/src/main/res/layout/settings_activity.xml

@@ -0,0 +1,13 @@
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:theme="@style/AppTheme.Edge2EdgeFix"
+    >
+
+    <FrameLayout
+        android:id="@+id/settings"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        />
+</LinearLayout>

PreventAudioFocus/src/main/res/values-v21/themes.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="AppTheme" parent="@android:style/Theme.DeviceDefault.Settings" />
+</resources>

PreventAudioFocus/src/main/res/values/strings.xml

@@ -0,0 +1,5 @@
+<resources>
+    <string name="app_name">PreventAudioFocus</string>
+    <string name="title_activity_settings">PreventAudioFocus Settings</string>
+    <string name="description">Prevent apps from acquiring audio focus</string>
+</resources>

PreventAudioFocus/src/main/res/values/themes.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+
+    <style name="AppTheme" parent="@android:style/Theme.DeviceDefault" />
+
+    <style name="AppTheme.Edge2EdgeFix">
+        <item name="android:fitsSystemWindows">true</item>
+    </style>
+</resources>