refactor: use JNI for Android integration

.github/actions/coverage/action.yml

@@ -33,4 +33,4 @@ runs:
       with:
         path: './${{ inputs.directory }}/coverage/lcov.info'
         min_coverage: ${{ inputs.min-coverage }}
-        exclude: 'lib/src/native/cocoa/binding.dart'
+        exclude: 'lib/src/native/**/binding.dart lib/src/native/java/android_replay_recorder.dart'

.github/file-filters.yml

@@ -7,3 +7,4 @@ high_risk_code: &high_risk_code
   - "flutter/ios/Classes/SentryFlutterPluginApple.swift"
   - "flutter/lib/src/screenshot/recorder.dart"
   - "flutter/lib/src/screenshot/widget_filter.dart"
+  - "flutter/lib/src/native/java/android_replay_recorder.dart"

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Unreleased 9.0.0
 
+### Breaking changes
+
 - Remove `SentryDisplayWidget` and manual TTID implementation ([#2668](https://github.com/getsentry/sentry-dart/pull/2668))
 - Increase minimum SDK version requirements to Dart v3.5.0 and Flutter v3.24.0 ([#2643](https://github.com/getsentry/sentry-dart/pull/2643))
 - Remove screenshot option `attachScreenshotOnlyWhenResumed` ([#2664](https://github.com/getsentry/sentry-dart/pull/2664))
@@ -12,6 +14,10 @@
 - Add hint for transactions ([#2675](https://github.com/getsentry/sentry-dart/pull/2675))
   - `BeforeSendTransactionCallback` now has a `Hint` parameter
 
+### Enhancements
+
+- Replay: improve Android native interop performance by using JNI ([#2670](https://github.com/getsentry/sentry-dart/pull/2670))
+
 ### Dependencies
 
 - Bump Android SDK from v7.20.1 to v8.1.0 ([#2650](https://github.com/getsentry/sentry-dart/pull/2650))

flutter/android/src/main/kotlin/io/sentry/flutter/SentryFlutterPlugin.kt

@@ -1,5 +1,6 @@
 package io.sentry.flutter
 
+import android.annotation.SuppressLint
 import android.app.Activity
 import android.content.Context
 import android.content.res.Configuration
@@ -35,7 +36,6 @@ import io.sentry.protocol.DebugImage
 import io.sentry.protocol.SentryId
 import io.sentry.protocol.User
 import io.sentry.transport.CurrentDateProvider
-import java.io.File
 import java.lang.ref.WeakReference
 import kotlin.math.roundToInt
 
@@ -49,7 +49,6 @@ class SentryFlutterPlugin :
   private lateinit var channel: MethodChannel
   private lateinit var context: Context
   private lateinit var sentryFlutter: SentryFlutter
-  private lateinit var replay: ReplayIntegration
 
   // Note: initial config because we don't yet have the numbers of the actual Flutter widget.
   // See how SentryFlutterReplayRecorder.start() handles it. New settings will be set by setReplayConfig() method below.
@@ -103,7 +102,6 @@ class SentryFlutterPlugin :
       "displayRefreshRate" -> displayRefreshRate(result)
       "nativeCrash" -> crash()
       "setReplayConfig" -> setReplayConfig(call, result)
-      "addReplayScreenshot" -> addReplayScreenshot(call.argument("path"), call.argument("timestamp"), result)
       "captureReplay" -> captureReplay(call.argument("isCrash"), result)
       else -> result.notImplemented()
     }
@@ -164,15 +162,13 @@ class SentryFlutterPlugin :
   private fun setupReplay(options: SentryAndroidOptions) {
     // Replace the default ReplayIntegration with a Flutter-specific recorder.
     options.integrations.removeAll { it is ReplayIntegration }
-    val cacheDirPath = options.cacheDirPath
     val replayOptions = options.sessionReplay
-    val isReplayEnabled = replayOptions.isSessionReplayEnabled || replayOptions.isSessionReplayForErrorsEnabled
-    if (cacheDirPath != null && isReplayEnabled) {
+    if (replayOptions.isSessionReplayEnabled || replayOptions.isSessionReplayForErrorsEnabled) {
       replay =
         ReplayIntegration(
-          context,
+          context.applicationContext,
           dateProvider = CurrentDateProvider.getInstance(),
-          recorderProvider = { SentryFlutterReplayRecorder(channel, replay) },
+          recorderProvider = { SentryFlutterReplayRecorder(channel, replay!!) },
           recorderConfigProvider = {
             Log.i(
               "Sentry",
@@ -187,8 +183,8 @@ class SentryFlutterPlugin :
           },
           replayCacheProvider = null,
         )
-      replay.breadcrumbConverter = SentryFlutterReplayBreadcrumbConverter()
-      options.addIntegration(replay)
+      replay!!.breadcrumbConverter = SentryFlutterReplayBreadcrumbConverter()
+      options.addIntegration(replay!!)
       options.setReplayController(replay)
     } else {
       options.setReplayController(null)
@@ -517,8 +513,13 @@ class SentryFlutterPlugin :
   }
 
   companion object {
+    @SuppressLint("StaticFieldLeak")
+    private var replay: ReplayIntegration? = null
+
     private const val NATIVE_CRASH_WAIT_TIME = 500L
 
+    @JvmStatic fun privateSentryGetReplayIntegration(): ReplayIntegration? = replay
+
     private fun crash() {
       val exception = RuntimeException("FlutterSentry Native Integration: Sample RuntimeException")
       val mainThread = Looper.getMainLooper().thread
@@ -552,19 +553,6 @@ class SentryFlutterPlugin :
     result.success(serializedScope)
   }
 
-  private fun addReplayScreenshot(
-    path: String?,
-    timestamp: Long?,
-    result: Result,
-  ) {
-    if (path == null || timestamp == null) {
-      result.error("5", "Arguments are null", null)
-      return
-    }
-    replay.onScreenshotRecorded(File(path), timestamp)
-    result.success("")
-  }
-
   private fun setReplayConfig(
     call: MethodCall,
     result: Result,
@@ -614,7 +602,7 @@ class SentryFlutterPlugin :
         replayConfig.bitRate,
       ),
     )
-    replay.onConfigurationChanged(Configuration())
+    replay!!.onConfigurationChanged(Configuration())
     result.success("")
   }
 
@@ -626,7 +614,7 @@ class SentryFlutterPlugin :
       result.error("5", "Arguments are null", null)
       return
     }
-    replay.captureReplay(isCrash)
-    result.success(replay.getReplayId().toString())
+    replay!!.captureReplay(isCrash)
+    result.success(replay!!.getReplayId().toString())
   }
 }

flutter/android/src/main/kotlin/io/sentry/flutter/SentryFlutterReplayRecorder.kt

@@ -19,17 +19,11 @@ internal class SentryFlutterReplayRecorder(
       return
     }
 
-    val cacheDirPath = integration.replayCacheDir?.absolutePath
-    if (cacheDirPath == null) {
-      Log.w("Sentry", "Replay cache directory is null, can't start replay recorder.")
-      return
-    }
     Handler(Looper.getMainLooper()).post {
       try {
         channel.invokeMethod(
           "ReplayRecorder.start",
           mapOf(
-            "directory" to cacheDirPath,
             "width" to recorderConfig.recordingWidth,
             "height" to recorderConfig.recordingHeight,
             "frameRate" to recorderConfig.frameRate,

flutter/ffi-jni.yaml

@@ -0,0 +1,18 @@
+android_sdk_config:
+  add_gradle_deps: true
+  android_example: 'example/'
+
+# summarizer:
+#   backend: asm
+
+output:
+  dart:
+    path: lib/src/native/java/binding.dart
+    structure: single_file
+
+log_level: all
+
+classes:
+  - io.sentry.android.replay.ReplayIntegration
+  - io.sentry.flutter.SentryFlutterPlugin
+  - android.graphics.Bitmap