Add sourceSets to support breaking ima change

app/src/compatFrom1_0/java/VersionCompat.kt

@@ -0,0 +1,16 @@
+import android.os.Bundle
+import androidx.media3.common.util.UnstableApi
+import androidx.media3.exoplayer.ima.ImaServerSideAdInsertionMediaSource
+
+/*
+ * VersionCompat.kt: Functions with different Variants for different media3
+ * versions. There are other version of this file for other variants. Look
+ * in the source set defs for more details
+ */
+
+object VersionCompat {
+  @androidx.annotation.OptIn(UnstableApi::class)
+  fun adsLoaderStateFromBundle(bundle: Bundle): ImaServerSideAdInsertionMediaSource.AdsLoader.State {
+    return ImaServerSideAdInsertionMediaSource.AdsLoader.State.CREATOR.fromBundle(bundle)
+  }
+}

app/src/compatFrom1_3/java/VersionCompat.kt

@@ -0,0 +1,16 @@
+import android.os.Bundle
+import androidx.media3.common.util.UnstableApi
+import androidx.media3.exoplayer.ima.ImaServerSideAdInsertionMediaSource
+
+/*
+ * VersionCompat.kt: Functions with different Variants for different media3
+ * versions. There are other version of this file for other variants.
+ * See the sourceSet defs for more details
+ */
+
+object VersionCompat {
+  @androidx.annotation.OptIn(UnstableApi::class)
+  fun adsLoaderStateFromBundle(bundle: Bundle): ImaServerSideAdInsertionMediaSource.AdsLoader.State {
+    return ImaServerSideAdInsertionMediaSource.AdsLoader.State.fromBundle(bundle)
+  }
+}

app/src/main/java/com/mux/stats/muxdatasdkformedia3/examples/ima/ImaServerAdsActivity.kt

@@ -1,5 +1,6 @@
 package com.mux.stats.muxdatasdkformedia3.examples.ima
 
+import VersionCompat
 import android.net.Uri
 import android.os.Bundle
 import android.os.PersistableBundle
@@ -60,7 +61,7 @@ class ImaServerAdsActivity : AppCompatActivity() {
     window.addFlags(View.KEEP_SCREEN_ON)
 
     adsLoaderState = savedInstanceState?.getBundle(EXTRA_ADS_LOADER_STATE)
-      ?.let { AdsLoader.State.fromBundle(it) }
+      ?.let { VersionCompat.adsLoaderStateFromBundle(it) }
   }
 
   override fun onResume() {