Add a Demo that can use a matrix to control FilterView

build.gradle

@@ -1,12 +1,16 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
+    ext {
+        kotlin_version = '2.0.20'
+    }
     repositories {
         mavenCentral()
         google()
     }
     dependencies {
         classpath 'com.android.tools.build:gradle:7.3.1'
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

cgeDemo/build.gradle

@@ -1,4 +1,5 @@
 apply plugin: 'com.android.application'
+apply plugin: 'org.jetbrains.kotlin.android'
 
 def usingCMakeCompile() {
     /// define  gradle.ext.usingCMakeCompile = false to disable CMakeCompile Mode.
@@ -33,11 +34,15 @@ android {
         }
     }
     namespace 'org.wysaid.cgeDemo'
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
 
 }
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation project(':library')
     implementation 'androidx.appcompat:appcompat:' + rootProject.ext.android.appcompatX
+    implementation 'androidx.core:core-ktx:1.1.0'
 }

cgeDemo/src/main/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:tools="http://schemas.android.com/tools"
-    xmlns:android="http://schemas.android.com/apk/res/android">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools">
+
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.CAMERA" />
@@ -50,6 +51,7 @@
             android:label="@string/title_activity_video_player" />
         <activity android:name=".VideoPlayerDemoActivity" />
         <activity android:name=".TestCaseActivity" />
+        <activity android:name=".ImageDemoWithMatrixActivity" />
         <activity
             android:name=".FaceTrackingDemoActivity"
             android:label="@string/title_activity_face_tracker_demo" />