Update project to support Android Studio 2024 (Closes #554)

build.gradle

@@ -1,13 +1,13 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.3.72'
+    ext.kotlin_version = '1.6.21'
     repositories {
         google()
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.2.0-beta04'
+        classpath 'com.android.tools.build:gradle:7.4.2'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
 // TODO: Close JCenter on May 1st https://jfrog.com/blog/into-the-sunset-bintray-jcenter-gocenter-and-chartcenter/

gradle.properties

@@ -13,7 +13,6 @@ org.gradle.parallel=true
 org.gradle.daemon=true
 org.gradle.configureondemand=true
 org.gradle.caching=true
-android.enableBuildCache=true
 
 VERSION_NAME=2.1.0
 VERSION_CODE=14

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,6 @@
+#Tue Jun 10 09:06:40 CST 2025
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https://services.gradle.org/distributions/gradle-6.7.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

library/src/main/cpp/CMakeLists.txt

@@ -3,7 +3,7 @@
 
 # Sets the minimum version of CMake required to build the native library.
 
-cmake_minimum_required(VERSION 3.4.1)
+cmake_minimum_required(VERSION 3.5)
 
 # Creates and names a library, sets it as either STATIC
 # or SHARED, and provides the relative paths to its source code.

sample/src/main/java/jp/co/cyberagent/android/gpuimage/sample/utils/Camera2Loader.kt

@@ -24,6 +24,7 @@ class Camera2Loader(private val activity: Activity) : CameraLoader() {
 
     private val cameraManager: CameraManager by lazy {
         activity.getSystemService(Context.CAMERA_SERVICE) as CameraManager
+
     }
 
     override fun onResume(width: Int, height: Int) {
@@ -120,21 +121,35 @@ class Camera2Loader(private val activity: Activity) : CameraLoader() {
             return Size(0, 0)
         }
         val cameraId = getCameraId(cameraFacing) ?: return Size(0, 0)
-        val outputSizes = cameraManager.getCameraCharacteristics(cameraId)
+        val map = cameraManager
+            .getCameraCharacteristics(cameraId)
             .get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP)
-            ?.getOutputSizes(ImageFormat.YUV_420_888)
+        val outputSizes = map?.getOutputSizes(ImageFormat.YUV_420_888) ?: return Size(PREVIEW_WIDTH, PREVIEW_HEIGHT)
+
+        val degrees = when (activity.windowManager.defaultDisplay.rotation) {
+            Surface.ROTATION_0   ->   0
+            Surface.ROTATION_90  ->  90
+            Surface.ROTATION_180 -> 180
+            Surface.ROTATION_270 -> 270
+            else                 ->   0
+        }
+        val isRotated = (degrees == 90 || degrees == 270)
+        val maxPreviewWidth  = if (isRotated) viewHeight else viewWidth
+        val maxPreviewHeight = if (isRotated) viewWidth  else viewHeight
 
-        val orientation = getCameraOrientation()
-        val maxPreviewWidth = if (orientation == 90 or 270) viewHeight else viewWidth
-        val maxPreviewHeight = if (orientation == 90 or 270) viewWidth else viewHeight
+        val candidates = outputSizes.filter {
+            it.width  < maxPreviewWidth  / 2 &&
+                    it.height < maxPreviewHeight / 2
+        }
 
-        return outputSizes?.filter {
-            it.width < maxPreviewWidth / 2 && it.height < maxPreviewHeight / 2
-        }?.maxBy {
-            it.width * it.height
-        } ?: Size(PREVIEW_WIDTH, PREVIEW_HEIGHT)
+        val best = candidates.maxByOrNull { size ->
+            size.width * size.height
+        }
+
+        return best ?: Size(PREVIEW_WIDTH, PREVIEW_HEIGHT)
     }
 
+
     private inner class CameraDeviceCallback : CameraDevice.StateCallback() {
         override fun onOpened(camera: CameraDevice) {
             cameraInstance = camera