feat: added AndroidNativeAnrEnabled and related options

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## Unreleased
 
+### Features
+
+- Added `AndroidNativeAnrEnabled` (default `false`) to enable ANR detection through the native (sentry-java) SDK, monitoring the Android UI (Looper) main thread. On API ≥ 30 this uses [ANR v2](https://docs.sentry.io/platforms/android/configuration/app-not-respond/) via `ApplicationExitInfo` to report OS-detected ANRs from prior runs; on API < 30 it falls back to an in-process watchdog. Complementary to the Unity SDK's C# watchdog, which monitors the Unity player loop. ([#2671](https://github.com/getsentry/sentry-unity/pull/2671))
+
 ### Dependencies
 
 - Bump Cocoa SDK from v9.12.0 to v9.12.1 ([#2670](https://github.com/getsentry/sentry-unity/pull/2670))

src/Sentry.Unity.Android/SentryJava.cs

@@ -140,6 +140,11 @@ public void Init(SentryUnityOptions options)
                 androidOptions.Call("setEnableScopeSync", options.NdkScopeSyncEnabled);
                 androidOptions.Call("setNativeSdkName", "sentry.native.android.unity");
 
+                androidOptions.Call("setAnrEnabled", options.AndroidNativeAnrEnabled);
+                androidOptions.Call("setEnableScopePersistence", options.AndroidNativeAnrEnabled);
+                androidOptions.Call("setReportHistoricalAnrs", options.AndroidNativeAnrEnabled && options.AndroidReportHistoricalAnrs);
+                androidOptions.Call("setAttachAnrThreadDump", options.AndroidNativeAnrEnabled && options.AndroidAttachAnrThreadDump);
+
                 using (var logsOptions = androidOptions.Call<AndroidJavaObject>("getLogs"))
                 {
                     logsOptions.Call("setEnabled", options.EnableLogs);
@@ -158,8 +163,6 @@ public void Init(SentryUnityOptions options)
                 androidOptions.Call("setAttachScreenshot", false);
                 androidOptions.Call("setEnableAutoSessionTracking", false);
                 androidOptions.Call("setEnableActivityLifecycleBreadcrumbs", false);
-                androidOptions.Call("setAnrEnabled", false);
-                androidOptions.Call("setEnableScopePersistence", false);
                 // Disable user interaction tracking to prevent conflicts with VR platforms (e.g., Oculus InputHooks)
                 androidOptions.Call("setEnableUserInteractionBreadcrumbs", false);
                 androidOptions.Call("setEnableUserInteractionTracing", false);

src/Sentry.Unity.Editor/Android/AndroidManifestConfiguration.cs

@@ -218,8 +218,9 @@ internal void ModifyManifest(string basePath)
         androidManifest.SetAutoTraceIdGeneration(false);
         androidManifest.SetAutoSessionTracking(false);
         androidManifest.SetAutoAppLifecycleBreadcrumbs(false);
-        androidManifest.SetAnr(false);
-        androidManifest.SetPersistentScopeObserver(false);
+        androidManifest.SetAnr(_options.AndroidNativeAnrEnabled);
+        androidManifest.SetPersistentScopeObserver(_options.AndroidNativeAnrEnabled);
+        androidManifest.SetAttachAnrThreadDump(_options.AndroidNativeAnrEnabled && _options.AndroidAttachAnrThreadDump);
         // Disable user interaction tracking to prevent conflicts with VR platforms (e.g., Oculus InputHooks)
         androidManifest.SetEnableUserInteractionBreadcrumbs(false);
         androidManifest.SetEnableUserInteractionTracing(false);
@@ -495,6 +496,9 @@ internal void SetAnr(bool enableAnr)
     internal void SetPersistentScopeObserver(bool enableScopePersistence)
         => SetMetaData($"{SentryPrefix}.enable-scope-persistence", enableScopePersistence.ToString());
 
+    internal void SetAttachAnrThreadDump(bool attachAnrThreadDump)
+        => SetMetaData($"{SentryPrefix}.anr.attach-thread-dumps", attachAnrThreadDump.ToString());
+
     internal void SetNdkEnabled(bool enableNdk)
         => SetMetaData($"{SentryPrefix}.ndk.enable", enableNdk.ToString());
 

src/Sentry.Unity/SentryUnityOptions.cs

@@ -214,6 +214,36 @@ public sealed class SentryUnityOptions : SentryOptions
     /// </remarks>
     public NativeInitializationType AndroidNativeInitializationType { get; set; } = NativeInitializationType.Runtime;
 
+    /// <summary>
+    /// Enables ANR detection on Android through the native (sentry-java) SDK.
+    /// On API ≥ 30 this uses Android's <c>ApplicationExitInfo</c> to report ANRs detected by the OS
+    /// in prior runs (ANR v2). On API &lt; 30, sentry-java falls back to its in-process watchdog.
+    /// The Unity SDK's C# ANR watchdog continues to run on all API levels.
+    /// </summary>
+    /// <remarks>
+    /// The Java and C# watchdogs observe different threads and are complementary: the Java watchdog
+    /// monitors the Android UI (Looper) main thread, while the C# watchdog monitors the Unity engine
+    /// main thread (the player loop). A hang that blocks both threads can produce one event from each.
+    /// </remarks>
+    public bool AndroidNativeAnrEnabled { get; set; } = false;
+
+    /// <summary>
+    /// When <see cref="AndroidNativeAnrEnabled"/> is enabled, controls whether sentry-java reports historical ANRs
+    /// recorded by the OS (<c>ApplicationExitInfo</c>) from prior runs. Has no effect when
+    /// <see cref="AndroidNativeAnrEnabled"/> is <c>false</c>.
+    /// </summary>
+    /// <remarks>
+    /// Runtime-only. There is no <c>AndroidManifest</c> meta-data tag for this option, so it is only
+    /// applied when <see cref="AndroidNativeInitializationType"/> is <see cref="NativeInitializationType.Runtime"/>.
+    /// </remarks>
+    public bool AndroidReportHistoricalAnrs { get; set; } = true;
+
+    /// <summary>
+    /// When <see cref="AndroidNativeAnrEnabled"/> is enabled, controls whether sentry-java attaches a thread dump
+    /// to ANR events. Has no effect when <see cref="AndroidNativeAnrEnabled"/> is <c>false</c>.
+    /// </summary>
+    public bool AndroidAttachAnrThreadDump { get; set; } = true;
+
     /// <summary>
     /// Whether the SDK should add the NDK integration for Android
     /// </summary>

test/Sentry.Unity.Editor.Tests/Android/AndroidManifestConfigurationTests.cs

@@ -150,6 +150,45 @@ public void ModifyManifest_UnityOptions_AndroidNativeSupportEnabled_InitTypeBuil
         StringAssert.Contains($"<meta-data android:name=\"io.sentry.dsn\" android:value=\"{_fixture.SentryUnityOptions.Dsn}\" />", manifest);
     }
 
+    [Test]
+    public void ModifyManifest_AndroidNativeAnrEnabled_True_WritesAnrMetadataEnabled()
+    {
+        _fixture.SentryUnityOptions!.AndroidNativeAnrEnabled = true;
+        var sut = _fixture.GetSut();
+
+        var manifest = WithAndroidManifest(basePath => sut.ModifyManifest(basePath));
+
+        StringAssert.Contains("<meta-data android:name=\"io.sentry.anr.enable\" android:value=\"True\" />", manifest);
+        StringAssert.Contains("<meta-data android:name=\"io.sentry.enable-scope-persistence\" android:value=\"True\" />", manifest);
+        StringAssert.Contains("<meta-data android:name=\"io.sentry.anr.attach-thread-dumps\" android:value=\"True\" />", manifest);
+    }
+
+    [Test]
+    public void ModifyManifest_AndroidNativeAnrEnabled_False_WritesAnrMetadataDisabled()
+    {
+        _fixture.SentryUnityOptions!.AndroidNativeAnrEnabled = false;
+        var sut = _fixture.GetSut();
+
+        var manifest = WithAndroidManifest(basePath => sut.ModifyManifest(basePath));
+
+        StringAssert.Contains("<meta-data android:name=\"io.sentry.anr.enable\" android:value=\"False\" />", manifest);
+        StringAssert.Contains("<meta-data android:name=\"io.sentry.enable-scope-persistence\" android:value=\"False\" />", manifest);
+        StringAssert.Contains("<meta-data android:name=\"io.sentry.anr.attach-thread-dumps\" android:value=\"False\" />", manifest);
+    }
+
+    [Test]
+    public void ModifyManifest_AndroidAttachAnrThreadDumpFalse_OverridesUmbrella()
+    {
+        _fixture.SentryUnityOptions!.AndroidNativeAnrEnabled = true;
+        _fixture.SentryUnityOptions!.AndroidAttachAnrThreadDump = false;
+        var sut = _fixture.GetSut();
+
+        var manifest = WithAndroidManifest(basePath => sut.ModifyManifest(basePath));
+
+        StringAssert.Contains("<meta-data android:name=\"io.sentry.anr.enable\" android:value=\"True\" />", manifest);
+        StringAssert.Contains("<meta-data android:name=\"io.sentry.anr.attach-thread-dumps\" android:value=\"False\" />", manifest);
+    }
+
     [Test]
     public void ModifyManifest_ManifestHasDsn()
     {