From 83c51519e20f11bf16c9fcc0ff02334f36f08aac Mon Sep 17 00:00:00 2001
From: programminghoch10 <16062290+programminghoch10@users.noreply.github.com>
Date: Tue, 26 Aug 2025 16:49:49 +0200
Subject: [PATCH 1/2] implement settings activity for PreventAudioFocus

---
 PreventAudioFocus/build.gradle.kts            |  8 +++-
 .../src/main/AndroidManifest.xml              | 24 +++++++---
 .../PreventAudioFocus/Common.kt               |  9 ++++
 .../PreventAudioFocus/Hook.java               | 18 -------
 .../PreventAudioFocus/Hook.kt                 | 30 ++++++++++++
 .../PreventAudioFocus/RadioPreference.kt      | 23 +++++++++
 .../PreventAudioFocus/SettingsActivity.kt     | 47 +++++++++++++++++++
 .../src/main/res/layout/radio.xml             |  9 ++++
 .../src/main/res/layout/settings_activity.xml | 10 ++++
 .../src/main/res/values-v21/themes.xml        |  4 ++
 .../src/main/res/values/strings.xml           |  5 ++
 .../src/main/res/values/themes.xml            |  9 ++++
 12 files changed, 171 insertions(+), 25 deletions(-)
 create mode 100644 PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/Common.kt
 delete mode 100644 PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/Hook.java
 create mode 100644 PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/Hook.kt
 create mode 100644 PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/RadioPreference.kt
 create mode 100644 PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/SettingsActivity.kt
 create mode 100644 PreventAudioFocus/src/main/res/layout/radio.xml
 create mode 100644 PreventAudioFocus/src/main/res/layout/settings_activity.xml
 create mode 100644 PreventAudioFocus/src/main/res/values-v21/themes.xml
 create mode 100644 PreventAudioFocus/src/main/res/values/strings.xml
 create mode 100644 PreventAudioFocus/src/main/res/values/themes.xml

diff --git a/PreventAudioFocus/build.gradle.kts b/PreventAudioFocus/build.gradle.kts
index 70ca5a3..d83d726 100644
--- a/PreventAudioFocus/build.gradle.kts
+++ b/PreventAudioFocus/build.gradle.kts
@@ -1,5 +1,6 @@
 plugins {
     alias(libs.plugins.buildlogic.android.application)
+    alias(libs.plugins.buildlogic.kotlin.android)
 }
 
 android {
@@ -7,6 +8,11 @@ android {
     
     defaultConfig {
         minSdk = 23
-        targetSdk = 35
+        targetSdk = 36
     }
 }
+
+dependencies {
+    implementation(libs.androidx.fragment.ktx)
+    implementation(libs.androidx.preference.ktx)
+}
diff --git a/PreventAudioFocus/src/main/AndroidManifest.xml b/PreventAudioFocus/src/main/AndroidManifest.xml
index f33ab93..a99766b 100644
--- a/PreventAudioFocus/src/main/AndroidManifest.xml
+++ b/PreventAudioFocus/src/main/AndroidManifest.xml
@@ -1,19 +1,31 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest
-    xmlns:android="http://schemas.android.com/apk/res/android">
-    
-    <application android:label="PreventAudioFocus">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application android:label="@string/app_name">
+        <activity
+            android:name=".SettingsActivity"
+            android:exported="true"
+            android:label="@string/title_activity_settings"
+            android:theme="@style/AppTheme"
+            android:excludeFromRecents="true"
+            >
+            <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"
diff --git a/PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/Common.kt b/PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/Common.kt
new file mode 100644
index 0000000..b947f94
--- /dev/null
+++ b/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
diff --git a/PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/Hook.java b/PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/Hook.java
deleted file mode 100644
index 17bbfa0..0000000
--- a/PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/Hook.java
+++ /dev/null
@@ -1,18 +0,0 @@
-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.XposedBridge;
-import de.robv.android.xposed.XposedHelpers;
-import de.robv.android.xposed.callbacks.XC_LoadPackage;
-
-public class Hook implements IXposedHookLoadPackage {
-    @Override
-    public void handleLoadPackage(XC_LoadPackage.LoadPackageParam lpparam) {
-        Class<?> clazz = AudioManager.class;
-        if (lpparam.packageName.equals("android")) clazz = XposedHelpers.findClass("com.android.server.audio.MediaFocusControl", lpparam.classLoader);
-        XposedBridge.hookAllMethods(clazz, "requestAudioFocus", XC_MethodReplacement.returnConstant(AudioManager.AUDIOFOCUS_REQUEST_GRANTED));
-    }
-}
diff --git a/PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/Hook.kt b/PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/Hook.kt
new file mode 100644
index 0000000..4cac542
--- /dev/null
+++ b/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)
+        )
+    }
+}
+
diff --git a/PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/RadioPreference.kt b/PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/RadioPreference.kt
new file mode 100644
index 0000000..282448e
--- /dev/null
+++ b/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)
+    }
+}
diff --git a/PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/SettingsActivity.kt b/PreventAudioFocus/src/main/java/com/programminghoch10/PreventAudioFocus/SettingsActivity.kt
new file mode 100644
index 0000000..583206d
--- /dev/null
+++ b/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)
+            }
+        }
+    }
+}
diff --git a/PreventAudioFocus/src/main/res/layout/radio.xml b/PreventAudioFocus/src/main/res/layout/radio.xml
new file mode 100644
index 0000000..41de0b3
--- /dev/null
+++ b/PreventAudioFocus/src/main/res/layout/radio.xml
@@ -0,0 +1,9 @@
+<?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:background="@null"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:clickable="false"
+    android:focusable="false" />
diff --git a/PreventAudioFocus/src/main/res/layout/settings_activity.xml b/PreventAudioFocus/src/main/res/layout/settings_activity.xml
new file mode 100644
index 0000000..9941209
--- /dev/null
+++ b/PreventAudioFocus/src/main/res/layout/settings_activity.xml
@@ -0,0 +1,10 @@
+<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>
diff --git a/PreventAudioFocus/src/main/res/values-v21/themes.xml b/PreventAudioFocus/src/main/res/values-v21/themes.xml
new file mode 100644
index 0000000..6ee0359
--- /dev/null
+++ b/PreventAudioFocus/src/main/res/values-v21/themes.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="AppTheme" parent="@android:style/Theme.DeviceDefault.Settings" />
+</resources>
diff --git a/PreventAudioFocus/src/main/res/values/strings.xml b/PreventAudioFocus/src/main/res/values/strings.xml
new file mode 100644
index 0000000..289128f
--- /dev/null
+++ b/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>
diff --git a/PreventAudioFocus/src/main/res/values/themes.xml b/PreventAudioFocus/src/main/res/values/themes.xml
new file mode 100644
index 0000000..7e8afbb
--- /dev/null
+++ b/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>

From 7c2c5b63b36acf9bbb507dad954f5e049668c14a Mon Sep 17 00:00:00 2001
From: binarynoise <binarynoise@mail.de>
Date: Wed, 1 Oct 2025 21:30:23 +0200
Subject: [PATCH 2/2] fix formatting

---
 PreventAudioFocus/src/main/AndroidManifest.xml        |  9 +++++----
 PreventAudioFocus/src/main/res/layout/radio.xml       |  8 +++++---
 .../src/main/res/layout/settings_activity.xml         | 11 +++++++----
 PreventAudioFocus/src/main/res/values-v21/themes.xml  |  1 +
 4 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/PreventAudioFocus/src/main/AndroidManifest.xml b/PreventAudioFocus/src/main/AndroidManifest.xml
index a99766b..b3547a0 100644
--- a/PreventAudioFocus/src/main/AndroidManifest.xml
+++ b/PreventAudioFocus/src/main/AndroidManifest.xml
@@ -1,20 +1,21 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android">
-
+<manifest
+    xmlns:android="http://schemas.android.com/apk/res/android">
+    
     <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"
-            android:excludeFromRecents="true"
             >
             <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"
diff --git a/PreventAudioFocus/src/main/res/layout/radio.xml b/PreventAudioFocus/src/main/res/layout/radio.xml
index 41de0b3..b2281ef 100644
--- a/PreventAudioFocus/src/main/res/layout/radio.xml
+++ b/PreventAudioFocus/src/main/res/layout/radio.xml
@@ -1,9 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
-<RadioButton xmlns:android="http://schemas.android.com/apk/res/android"
+<RadioButton
+    xmlns:android="http://schemas.android.com/apk/res/android"
     android:id="@android:id/checkbox"
     style="@style/Widget.AppCompat.CompoundButton.RadioButton"
-    android:background="@null"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
+    android:background="@null"
     android:clickable="false"
-    android:focusable="false" />
+    android:focusable="false"
+    />
diff --git a/PreventAudioFocus/src/main/res/layout/settings_activity.xml b/PreventAudioFocus/src/main/res/layout/settings_activity.xml
index 9941209..d4662df 100644
--- a/PreventAudioFocus/src/main/res/layout/settings_activity.xml
+++ b/PreventAudioFocus/src/main/res/layout/settings_activity.xml
@@ -1,10 +1,13 @@
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<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">
-
+    android:theme="@style/AppTheme.Edge2EdgeFix"
+    >
+    
     <FrameLayout
         android:id="@+id/settings"
         android:layout_width="match_parent"
-        android:layout_height="match_parent" />
+        android:layout_height="match_parent"
+        />
 </LinearLayout>
diff --git a/PreventAudioFocus/src/main/res/values-v21/themes.xml b/PreventAudioFocus/src/main/res/values-v21/themes.xml
index 6ee0359..ee02adb 100644
--- a/PreventAudioFocus/src/main/res/values-v21/themes.xml
+++ b/PreventAudioFocus/src/main/res/values-v21/themes.xml
@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
+    
     <style name="AppTheme" parent="@android:style/Theme.DeviceDefault.Settings" />
 </resources>