diff -r 6ff6774c8121 -r ac393491d2eb sample/src/main/java/com/geekorum/aboutoss/sampleapp/MainActivity.kt
--- a/sample/src/main/java/com/geekorum/aboutoss/sampleapp/MainActivity.kt	Tue May 02 17:02:58 2023 -0400
+++ b/sample/src/main/java/com/geekorum/aboutoss/sampleapp/MainActivity.kt	Tue May 02 17:08:28 2023 -0400
@@ -21,47 +21,132 @@
  */
 package com.geekorum.aboutoss.sampleapp
 
+import android.content.Intent
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
-import androidx.compose.foundation.layout.fillMaxSize
-import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Surface
-import androidx.compose.material3.Text
+import androidx.compose.foundation.layout.*
+import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
 import com.geekorum.aboutoss.sampleapp.ui.theme.AboutOssTheme
+import com.geekorum.aboutoss.sampleapp.ui.theme.OpenSourceLicenseTheme
+import com.geekorum.aboutoss.ui.material3.OpenSourceLicensesActivity
+import com.geekorum.aboutoss.ui.material.OpenSourceLicensesActivity as Material2OpenSourceLicensesActivity
 
 class MainActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContent {
             AboutOssTheme {
-                // A surface container using the 'background' color from the theme
-                Surface(
-                    modifier = Modifier.fillMaxSize(),
-                    color = MaterialTheme.colorScheme.background
-                ) {
-                    Greeting("Android")
-                }
+                Sample(
+                    onMaterial2Click = {
+                        startMaterial2LicenseActivity()
+                    },
+                    onMaterial3Click = {
+                        startMaterial3LicenseActivity()
+                    }
+                )
             }
         }
     }
+
+    private fun startMaterial2LicenseActivity() {
+        val intent = if (BuildConfig.DEBUG) {
+            // we launch a custom activity in debug to display some fake licenses
+            // see Material2AcPrebuiltLicencesMaterial2Activitytivity for more info
+            Intent(this, PrebuiltLicencesMaterial2Activity::class.java)
+        } else {
+            Intent(this, Material2OpenSourceLicensesActivity::class.java)
+        }
+        startActivity(intent)
+    }
+
+    private fun startMaterial3LicenseActivity() {
+        // Don't use default MaterialTheme but supply our own
+        OpenSourceLicensesActivity.themeProvider = { content ->
+            OpenSourceLicenseTheme(content)
+        }
+        val intent = if (BuildConfig.DEBUG) {
+            // we launch a custom activity in debug to display some fake licenses
+            // see PrebuiltLicencesMaterial3Activity for more info
+            Intent(this, PrebuiltLicencesMaterial3Activity::class.java)
+        } else {
+            Intent(this, OpenSourceLicensesActivity::class.java)
+        }
+        startActivity(intent)
+    }
+}
+
+@Composable
+private fun Sample(
+    onMaterial2Click: () -> Unit,
+    onMaterial3Click: () -> Unit,
+) {
+    Surface(
+        modifier = Modifier.fillMaxSize(),
+        color = MaterialTheme.colorScheme.background
+    ) {
+        Column(Modifier.fillMaxSize()) {
+            LaunchActivitySection(onMaterial2Click, onMaterial3Click)
+            CustomViewer(modifier = Modifier.padding(horizontal = 16.dp))
+        }
+    }
 }
 
 @Composable
-fun Greeting(name: String, modifier: Modifier = Modifier) {
-    Text(
-        text = "Hello $name!",
-        modifier = modifier
-    )
+private fun LaunchActivitySection(
+    onMaterial2Click: () -> Unit,
+    onMaterial3Click: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    Column(modifier.padding(16.dp)) {
+        Text("This section launch a new activity to display licences information")
+        Row(
+            horizontalArrangement = Arrangement.SpaceAround, modifier = Modifier
+                .fillMaxWidth()
+                .padding(32.dp)
+        ) {
+            Material2Card(onClick = onMaterial2Click)
+            Material3Card(onClick = onMaterial3Click)
+        }
+    }
 }
 
+
+@Composable
+@OptIn(ExperimentalMaterial3Api::class)
+private fun Material2Card(
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    Card(modifier = modifier, onClick = onClick) {
+        Column(Modifier.padding(16.dp)) {
+            Text("Material2 UI", style = MaterialTheme.typography.labelLarge)
+        }
+    }
+}
+
+@Composable
+@OptIn(ExperimentalMaterial3Api::class)
+private fun Material3Card(
+    onClick: () -> Unit,
+    modifier: Modifier = Modifier
+) {
+    Card(modifier = modifier, onClick = onClick) {
+        Column(Modifier.padding(16.dp)) {
+            Text("Material3 UI", style = MaterialTheme.typography.labelLarge)
+        }
+    }
+}
+
+
 @Preview(showBackground = true)
 @Composable
-fun GreetingPreview() {
+fun LauncherActivitySectionPreview() {
     AboutOssTheme {
-        Greeting("Android")
+        LaunchActivitySection(onMaterial2Click = {}, onMaterial3Click = {})
     }
 }
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