Add appHangTimeoutInterval to SentryFlutterOptions (#1568)

Co-authored-by: Manoel Aranda Neto <marandaneto@gmail.com>

Author: denrase

CHANGELOG.md

@@ -8,6 +8,8 @@
 
 [Trace origin](https://develop.sentry.dev/sdk/performance/trace-origin/) indicates what created a trace or a span. Not all transactions and spans contain enough information to tell whether the user or what precisely in the SDK created it. Origin solves this problem. The SDK now sends origin for transactions and spans.
 
+- Add `appHangTimeoutInterval` to `SentryFlutterOptions` ([#1568](https://github.com/getsentry/sentry-dart/pull/1568))
+
 ### Dependencies
 
 - Bump Cocoa SDK from v8.8.0 to v8.9.1 ([#1553](https://github.com/getsentry/sentry-dart/pull/1553))

flutter/example/lib/main.dart

@@ -2,7 +2,6 @@
 
 import 'dart:async';
 import 'dart:convert';
-import 'dart:io' show Platform;
 
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';

flutter/ios/Classes/SentryFlutterPluginApple.swift

@@ -384,6 +384,10 @@ public class SentryFlutterPluginApple: NSObject, FlutterPlugin {
         if let enableAppHangTracking = arguments["enableAppHangTracking"] as? Bool {
             options.enableAppHangTracking = enableAppHangTracking
         }
+
+        if let appHangTimeoutIntervalMillis = arguments["appHangTimeoutIntervalMillis"] as? UInt {
+            options.appHangTimeoutInterval = TimeInterval(appHangTimeoutIntervalMillis) / 1000
+        }
     }
 
     private func logLevelFrom(diagnosticLevel: String) -> SentryLevel {

flutter/lib/src/integrations/native_sdk_integration.dart

@@ -51,6 +51,8 @@ class NativeSdkIntegration implements Integration<SentryFlutterOptions> {
         'enableAppHangTracking': options.enableAppHangTracking,
         'connectionTimeoutMillis': options.connectionTimeout.inMilliseconds,
         'readTimeoutMillis': options.readTimeout.inMilliseconds,
+        'appHangTimeoutIntervalMillis':
+            options.appHangTimeoutInterval.inMilliseconds,
       });
 
       options.sdk.addIntegration('nativeSdkIntegration');

flutter/lib/src/sentry_flutter_options.dart

@@ -195,10 +195,18 @@ class SentryFlutterOptions extends SentryOptions {
   bool attachViewHierarchy = false;
 
   /// When enabled, the SDK tracks when the application stops responding for a
-  /// specific amount of time (default 2s).
+  /// specific amount of time, See [appHangTimeoutInterval].
   /// Only available on iOS and macOS.
   bool enableAppHangTracking = true;
 
+  /// The minimum amount of time an app should be unresponsive to be classified
+  /// as an App Hanging. The actual amount may be a little longer. Avoid using
+  /// values lower than 100ms, which may cause a lot of app hangs events being
+  /// transmitted.
+  /// Default to 2s.
+  /// Only available on iOS and macOS.
+  Duration appHangTimeoutInterval = Duration(seconds: 2);
+
   /// Connection timeout. This will only be synced to the Android native SDK.
   Duration connectionTimeout = Duration(seconds: 5);
 

flutter/test/integrations/init_native_sdk_integration_test.dart

@@ -62,6 +62,7 @@ void main() {
         'enableAppHangTracking': true,
         'connectionTimeoutMillis': 5000,
         'readTimeoutMillis': 5000,
+        'appHangTimeoutIntervalMillis': 2000,
       });
     });
 
@@ -100,7 +101,8 @@ void main() {
         ..captureFailedRequests = false
         ..enableAppHangTracking = false
         ..connectionTimeout = Duration(milliseconds: 9001)
-        ..readTimeout = Duration(milliseconds: 9002);
+        ..readTimeout = Duration(milliseconds: 9002)
+        ..appHangTimeoutInterval = Duration(milliseconds: 9003);
 
       options.sdk.addIntegration('foo');
       options.sdk.addPackage('bar', '1');
@@ -143,6 +145,7 @@ void main() {
         'enableAppHangTracking': false,
         'connectionTimeoutMillis': 9001,
         'readTimeoutMillis': 9002,
+        'appHangTimeoutIntervalMillis': 9003,
       });
     });